KPS is about Sportsmanship
Please visit the below information links for your division.
1. Prior to any race event, any vehicle may be subject to a safety inspection by the Race Officials and may be disqualified from competing until violations are corrected.
2. No race, time trial or warm-up shall start unless there is adequate safety and emergency equipment on the track premises.
3. Any driver involved in a serious accident must receive clearance from the ambulance attendant in order to continue to participate.
4. All drivers' helmets must meet Snell 90 or better standards.
5. All drivers must wear driving suits or CLEAN coveralls that cover the body from the neck to the wrists and ankles and they must not enter the track surface at any time without all their safety equipment (helmets, safety belts, fire suit etc.). It is highly recommended that drivers wear eye protection that is designed for auto racing, as well as a neck brace.
6. Any person entering the pit area must wear proper attire. No open-toed shoes are allowed.
7. Seat-belts are to be racing type, 5 point (no homemade) and securely fastened to the roll cage and seat frame, with one quick-release mechanism. Belts are to be in good condition, 2" minimum width, 3" width suggested. Mounting points must be secure and made of steel with 3/8" diameter Grade 5 bolts minimum. Shoulder belts are to be mounted 2" lower than the highest area that covers the driver's shoulders to keep the driver down in a rollover and the lap belts must be padded. The manufacturer's date on all belts should be checked and each individual will be responsible for following the manufacturer's recommendations for inspection and replacement. Seat belts will be visually inspected by the technical director and any belts rejected must be replaced.
8. No driver, while on the track will loosen or remove their seatbelts, helmets or get out of their vehicle unless the vehicle is on fire or they are directed to do so by a Race Official. There will be a fine for each violation of not less than $25 and not more than $1000.00.
9. Racing seats- please refer to individual class rules for ruling on seats. Refer to diagram section for seat installation.
10. A quick-release driver's side window net is mandatory. An approved nylon web type net must be installed in driver's side window opening. Net size must be 16" x 18". Net must be installed so that it is tight. Window net anchors must be attached to roll bars, not body with 3/8 steel rods top and bottom (no threaded rod). Net must be anchored at the bottom and released at the top front with an approved quick-release mechanism ( seat belt buckle or lever-style latch). All mounting hardware must be inboard of body. No homemade window nets will be allowed.
11. A battery master kill switch is mandatory, all electrical accessories and the engine must stop when the switch is turned off. The battery switch must be clearly labelled and within driver's and safety crews' reach. All cars must have a working neutral safety switch. The switch may be routed through the brake light switch or a clutch pedal switch. The ignition switch must be labelled in the OFF position and accessible by the driver when the seat belts are done up.
12. A minimum 2.5 lb. fully charged fire extinguisher mounted in the proper metal quick release bracket and with a recharge slip dating back no more than 9 months is mandatory. A fire extinguisher is to be mounted within the driver's reach with the seat belts done up. A second fire extinguisher of 5 lbs minimum is mandatory in the pit area for each race vehicle.
13. Vehicles MUST have lights for night racing. Vehicles must have two red tail lights and two amber front lights. Lights are to be 2" in diameter. No glass allowed.
14. A fully functioning brake system is required before entering or reentering a race. Cars must be capable of a four-wheel lock up at any given time. A parking brake may not be used to achieve a four-wheel lockup.
15. Vehicles must paint drive shafts white with vehicle numbers clearly marked.
16. Added weight must be in block form, no less than 10 lb pieces. Ballast weight must be fastened to or encased within the frame rail, no lower than the frame rail. Added weight must be double bolted with grade 5 1/2 inch bolts and painted white with the number clearly marked on each piece. Loss of an add on weight will result in a severe penalty.
17. A 1/8" steel scatter shield that is positioned between the floor and bell housing, covering the top part of the bell housing. 180 degrees around, is required on all cars with manual transmissions. An aftermarket 360 degree scatter shield is recommended on manual transmissions.
18. Fuel cans in the pits must be red or white in color and clearly marked. All other fluids must not be in a fuel can and clearly labeled water, waste oil, etc.
19. No dumping of fuel, waste oil, tires, or any other toxic chemical on the Speedway grounds. Race teams are required to transport their toxic waste to proper facilities for disposal. Violators will be fined heavily and responsible for cost of cleanup.
20. There will be NO lit smoking materials allowed within the driver's compartment of the race vehicle during a race event or around a vehicle that is being refueled.
1. The general rules shall apply to each and every, driver, owner, sponsor, mechanic, crew member and/or pit personnel (collectively known as participants). All participants are subject to the rules and regulations on and off the track and are expected to know the rules and regulations. Any claimed ignorance of the rules WILL NOT be accepted or tolerated as an excuse.
2. Violation of these rules with the intent to harm the spirit of the Regina Auto Racing Club, hereafter referred to as the RARC, shall be considered to have engaged in unsportsmanlike conduct and shall be dealt with by the Race Director and/or the Track Management depending on the nature of the infraction. Un-sportsman-like conduct will result in a fine up to $1000.00 and/or suspension from the organization and prohibited attendance at the Kings Park Speedway in any form. The offender shall forfeit all points when the infraction occurred, to the date of the infraction and all prize money earned for that event.
3. The rules and regulations are effective upon the date of this publication.
4. The Management reserves the right to add, delete, supersede, or modify rules, exhibits, or diagrams that Management deems necessary for the betterment and/or safety of racing.
5. All fines and suspensions will automatically carry a minimum one-year probationary period from the date of the infraction and will carry over from class to class. All suspensions must be served, and fines must be paid in full before entry to Kings Park Speedway will be allowed.
6. You must be a member or person in good standings with the RARC if you wish to receive membership, points, money, or other awards. All fines must be paid, suspensions served, and other outstanding debts must be taken care of to be considered in good standings. This applies to any member, driver, owner, sponsor, pit crew member, spectator, or guest on the Kings Park Speedway premises.
7. Physical and verbal abuse WILL NOT be tolerated at Kings Park Speedway by any party. No Track Management, Race Official, Race Director, Driver, Crew Member, or guest shall subject any person to abusive or improper language or physical abuse at any time. This will be considered un-sportsman-like conduct and will result in a fine of up to $1000.00 and/or suspension.
8. Alcoholic beverages are to be consumed in the controlled area of Kings Park Speedway at designated times. No participant at Kings Park Speedway shall wear racing apparel in the beer gardens during race events. No liquor or controlled substances are to be consumed on the premises of Kings Park Speedway by anyone entering the pit area at any time. Any person found to be under the influence, or in possession of any drug that is found illegal by federal law, will automatically be removed from the premises with denial of further entry to be determined by the Race Director and Track Management. If any driver or crew member is caught consuming any alcoholic beverages before the ENTIRE day's program is completed, he/she will be immediately removed from the race and track premises and shall be subject to a mandatory fine of not less than $25.00 and nor more than $1000.00, and that person will also be suspended.
9. All persons requiring access to the pit area must have documentation probing minimum age of 14 years and the person must qualify in one of the following categories:
a) Driver or pit crew of the registered vehicle
b) Accredited member of the media
c) Accredited VIP, guest, race official or volunteer
All persons qualified to enter the pit area will pay the applicable fees. Further, they will print their name and vehicle number in a legible manner on the required documentation (to the satisfaction of the gate security), and then sign beside it. Any participant failing to sign all release forms will be disqualified and lose all money/points for that day.
10. Other than race officials, any person entering the pit area must be wearing clean long-sleeved coveralls, preferably team uniforms.
11. No person shall drive any vehicle on the track without permission from the
12. The tower is off-limits during any event. This does not apply to Race Officials and Track Management.
13. The Race Director along with Track Management reserve the right to reject or allow any entry of vehicles, drivers, crew members and/or any other person at Kings Park Speedway.
14. A valid driver’s license must be held to participate in racing. If a driver’s license is revoked, reinstatement can be made only by the Race Director and Management. Failure to apply for reinstatement will result in a fine to be determined by the Track Management.
15. Every driver must inspect the racing surface and the track area to learn of anything which, in the driver’s opinion, is unsafe. Any driver entering any racing event is considered to have inspected the track and determined that all conditions are satisfied. The driver further acknowledges that they are aware that auto racing involves risk and that by competing in an event; they assume these risks with full awareness and knowledge. No person except the drivers and race officials are allowed on the track surface at any time.
16. Regular class drivers that have driven in a regular class race in any year may not become rookie drivers in the current season. Rookie drivers may move to regular class racing during the current season but forfeit the right to go back to the rookie class during the current season. Any points accumulated will stay with the registered vehicle.
17. All cars competing will be subject to a maximum noise limit of 100 decibels. Decibels readings will be taken at a designated location from the spectator stands with a decibel meter. Offending cars will be issued a warning. If no action is taken to conform to the rule, the offending vehicle will not be allowed to compete until the correction is made.
18. Two-digit numbers in contrasting colours must be on both doors at least 18” high and 2” wide. 18”x 12”x 2” numbers must be on the right top of the roof, facing the drivers’ side, the roof number will be viewed correctly from standing on the driver's side of the vehicle. 6” numbers shall be displayed on the right front and right rear on head and tail light covers. Out-of-town cars must change their vehicle number for that specific race day if the number conflicts with local vehicle numbers.
19. No radios or receivers are allowed in any vehicle competing in a RARC governed race event.
20. Any vehicle number not registered during the previous season may be used during the current season with the Exception of Car #44 which has been retired.
21. Any vehicle left on the premises of Kings Park Speedway is done so at its own risk and after 24 hours will be considered abandoned and become the property of the RARC.
22. Vehicle Protests:
22.1 Individuals filing a protest must be a member in good standing with King Park Speedway and be a registered owner or driver of the race class of the vehicle being protested.
22.2 Protests must be filed in writing with a Kings Park Speedway official within 30 minutes Prior to the feature race.
a) Withdrawal of a protest will not be allowed once the Feature Race has started.
22.3 The inspection WILL NOT be carried out until after the Feature Race on the final day of the event.
a) If a protest is filed prior to the last day of a multi-day event, the vehicle in question will be impounded in a no basis location until the next race day.
b) If work is required while the vehicle is impounded, the work must be overseen by a Kings Park Speedway official.
22.4 The protest must specify the alleged violation to determine whether the protest is allowed or rejected.
a) Only 1 violation inspection per protest.
22.5 Protests WILL NOT be allowed after post-race inspections have been completed.
22.6 All protests will be handled at track level and must be accompanied by a $400.00 cash deposit. $100.00 of the deposit goes to the RARC and will not be refunded, regardless of the outcome of the protest. If item being protested is found legal, $300.00 will be awarded to the owner/driver of the protested vehicle. If found illegal, $300 will be refunded to the protester.
22.7 If the party the protest is against refuses to be inspected, they will forfeit all points accumulated up to the date of protest.
22.8 Process: Class rules will supersede what is stated below.
Engine: Will consist of the removal of intake and one head.
Carburetor: Bore (CFM)
All gears must function while under load. Fully functional convertor.
Standards: All gears must function while under load. Must have approved clutch.
Chassis: Suspension mounts are in the factory location.
NOTE: Only 1 item under the category may be protested at a time.
MINI ENDURO RULES
The idea is to build a “Mini Enduro” car with limited money and little time.
* With a little help you will be able to build it in a weekend.
* If you have any questions or concerns...ask...don't assume.
* Please think safety it is the registrants responsibility.
These cars will run two heats pending car count and a feature race with mandatory hit to pass.
* 4 or 6 cylinder vehicles
* 116” wheelbase
* Front or rear-wheel drive allowed
* fuel injection allowed
* 1/4 ton trucks and minivans not allowed.
* If the vehicle has a sunroof it has to be replaced with a metal patch panel in the same thickness as the roof to fill the hole.
* ABSOLUTELY ZERO MODIFICATIONS TO SUSPENSION OF ENGINE. IF IT DIDN'T COME FROM THE FACTORY WITH IT...IT IS NOT ALLOWED.
* No aftermarket parts allowed
* factory street tires/street rims – nothing over 8 inches wide.
* 1-inch lug nuts recommended especially right side.
* No gutting or reinforcing – except to allow for roll cage/rollover post or “c” channel along with driver's door.
* Cage is not mandatory but if you so decide, 4 points only with no bars extended thru the front or rear firewalls.
* Minimum of two 4 inches “c” channel, or grader blade, along driver's side, securely fastened from “a” pillar to ahead of the rear wheel well. Welded or bolted accepted, SPACED 12” APART from CENTER of the door.
* Minimum of one 4 inches “c” channel, or grader blade, along the passenger side, securely fastened from “a” pillar to ahead of the rear wheel well. Welded or bolted accepted. Attached at the centre of the door.
* Roll over the post to be a minimum of 1 3/4 .095 pipe with a 12”x12” plate welded on both sides, then welded or bolted (3/8” bolts minimum) to the roof and floor ( see
* “b” pillar horizontal pipe to be a minimum of 1 3/4 .095 pipe, with a 6”x6” plate welded on both sides, then welded or bolted (3/8” bolts minimum) to “b” pillar. This pipe Must be at the level of your shoulders or above.
* No lock rear diff's
* driver-side window net or cut-able material mandatory.
* Fire extinguisher mounted within driver's reach.
* Disable driver's side airbag.
* Fuel cells permitted; however, the rear firewall is required – seal all openings to the trunk (rear seat area)
* Factory gas tank can remain in its location and must not leak; if using factory tank, no firewall is necessary.
* Water must be used as the coolant. NO ANTI-FREEZE
* Plastics, burnables, glass (except windshield), unnecessary rubber, mirrors, cladding, ALL VEHICLES MUST BE CLEAN INSIDE DRIVERS COMPARTMENT AND IN TRUNK. If not you will not be allowed on the track.
* Plastic outer body panels to remain.
* You may need to modify the fender to accommodate the driver's side “c” channel on some vehicles
* Dash to remain intact.
* Driver's seat to remain intact – RUSTY SEAT MOUNTS MUST BE REPAIRED – seat MUST be secured. THIS IS CRITICAL.
* Racing seat preferred.
* Weld or chain doors shut.
* Hood chained or hood pins installed – remove the factory latch
* Battery can be relocated but must be in plastic or rubber container securely fastened and covered.
* FIRE RETARDANT COVERALLS MUST BE WORN BY DRIVERS – NO ORDINARY COVERALLS.
* D.O.T or Snell-approved helmets.
* Neck collar or Hans-type device highly recommended.
* Dressing up of cars highly recommended NO VULGARITY
If you are building – here are some tips
* Heat is a killer – be certain Radiators are functioning as best as possible.
* The race will eat up brakes – new brakes are a good expense
* Cars that have been sitting, will have belts and hoses that may need replacing DO THAT AHEAD OF TIME
* Bring extra batteries/tires and rims/fluids (oil + transmission)
* Mechanical gremlins take the fun out of it; try to eliminate as much uncertainty as
possible before the event
* This is meant to be a fun event – it is not Nascar
HOBBY TRUCK SERIES RULES
Kings Park Speedway – Hobby Truck Rules
Publish date: 2000
Updated: January 7, 2021
1.1) By registering as an owner or driver you agree to be knowledgeable and bound by the contents found herein and in the General Rules.
1.2.1) The Truck division are late model North American production trucks, stock in appearance and construction and designed for the amateur individual participating in racing trucks for a hobby.
1.2.2) The rules and restrictions are designed to prevent the cost of competing from getting out of hand, and give each individual a fair and competitive chance.
2.1.1) Parts available from your local dealer through ordinary parts catalogs may be accepted as OEM stock. (original equipment manufacturer)
2.1.2) Parts ordered through dealer performance catalogs will not necessarily be considered legal.
2.1.3) No marine parts will be allowed.
2.2.1) Items the will be allowed and are required.
2.3.1) Items that are not allowed. The list of restrictions should not be considered complete.
2.3.2) If in doubt talk to the executive before you do it.
3.1) Air Cleaner
22.214.171.124) No Cold, No Ram. (updated January 7, 2021)
126.96.36.199) Stock Base OEM Type paper air cleaner to act as a flame arrestor.
188.8.131.52) K&N Filters.
184.108.40.206) No high velocity or stack type air cleaners.
220.127.116.11) No cowl induction system.
18.104.22.168) No ram air tubing or ducting.
3.2) Battery (updated: Feb 28, 2020)
22.214.171.124) Battery box is required if battery is located inside the cab (Permitted only with extended cab models). Must be located behind the driver seat. (updated: Feb 28, 2020)
126.96.36.199) If the battery is located outside of frame rails a horizontal cage is required around the battery. (updated: Feb 28, 2020)
188.8.131.52) One automotive Battery.
3.3) Body Appearance (updated January 7, 2021)
184.108.40.206) Must be presentable in all race events.
220.127.116.11) Panels must be painted.
18.104.22.168) Straight, sound, stock appearing and in stock position on frame.
22.214.171.124) 100% of body panels must be attached each race day.
126.96.36.199) Floorboard and firewall factory.
3.4) Body Style (updated January 7, 2021)
188.8.131.52) GMC, Chevrolet, Dodge, and Ford full size half ton trucks from 1967 to present inclusive with a minimum wheel base of 127 inches.
184.108.40.206) Standard cabs and straight side 8-foot boxes, or extended cabs 6-foot boxes.
220.127.116.11) Square bodies can move the diff 1 1/2” forward.
18.104.22.168) No step side or short boxes.
22.214.171.124) No front wheel drive or four wheel drives.
126.96.36.199) No 3/4 ton or larger chassis.
188.8.131.52) Body and box must be steel and strictly stock.
184.108.40.206) Box, body and chassis must be of the same make and model and model year.
220.127.116.11) Character lines must retain alignment.
18.104.22.168) Box floor ribs may be notched to allow character line alignment.
22.214.171.124) Body and box must be securely fastened to frame.
126.96.36.199) Door and hood seams must stay original.
188.8.131.52) 22 gauge sheet metal must cover entire top of box and must be securely fastened.
184.108.40.206) Access panels must be secured with hinges and hood pins.
220.127.116.11) Chrome moldings, ornaments, door handles, glass or plastic must be removed, except the front windshield.
18.104.22.168) Original tailgate outer skin or a 22 gauge sheet metal conforming to the original shape may be used and must be welded or riveted shut.
22.214.171.124) Body repair or replacement panels must be made of steel minimum 22 gauge thickness.
3.5.2) Optional (updated: Feb 28, 2020)
126.96.36.199) Door Handle, tail lamp and head lamp openings may be filled in with aluminum or steel sheet metal.
188.8.131.52) Body mount insulators may be removed.
184.108.40.206) Front inner fender may be removed.
220.127.116.11) Front spoiler and/or side skirting optional and must be a minimum of 5” from ground.
18.104.22.168) Rear spoiler optional and must be single plain sheet metal, maximum 6” high, no wider than tail gate.
22.214.171.124) Inner box liner panels may be removed.
126.96.36.199) Floor of box bed and rear wheel tubs may be removed.
188.8.131.52) Floor and wheel tubs must be extended to outer body panel.
184.108.40.206) May use aftermarket nose pieces.
220.127.116.11) No wood floors.
18.104.22.168) No aftermarket nose pieces or wings. Air scoops or any accessory that alters stock appearance. (updated January 7, 2021) 22.214.171.124) No Modifications to roof.
126.96.36.199) No sheet metal screws.
188.8.131.52) Four Wheel hydraulic brakes.
184.108.40.206) All four brakes must be factory original and be working at all the times.
(subject to spot-check)
220.127.116.11) Dual line braking systems.
18.104.22.168) No lightening of backing plates, brake drums, and/or shoes by cutting or trimming metal.
22.214.171.124) No drilling of cooling holes in drums or rotors.
126.96.36.199) No adjustable proportioning valves or residual pressure check valves
188.8.131.52) No modifications to mounting points.
184.108.40.206) No rear disc brakes.
3.7.1) Requirements (updated: Feb 28, 2020)
220.127.116.11) Front and rear bumpers.
18.104.22.168) Mounted in Stock location.
22.214.171.124) Stamped steel OEM front bumper may be used on the rear.
126.96.36.199) Center height of bumpers must be between 16" and 19".
188.8.131.52) Tube rear bumper maximum 100 wall pipe, enclosed and flush with outside of skins.
184.108.40.206) Metal guards extending from bumper to body panel, riveted in place may be used to prevent bumper gouging.
220.127.116.11) Width of bumper may be shortened to conform with body.
3.7.3) Restrictions (updated: Feb 28, 2020)
18.104.22.168) Step bumpers must be plated across the step. (updated: Feb 28, 2020)
22.214.171.124) No reinforcing of bumpers.
126.96.36.199) Bumpers to be capped or bent in. (updated January 7, 2021)
188.8.131.52) Securely bolted or welded front and back using three 2” welds top, center, and bottom.
184.108.40.206) Inner panels may be removed.
3.9) Drive line
220.127.116.11) Drive shaft and universal joints must be stock steel standard production type.
18.104.22.168) Front and rear drive shaft retaining hoops must be 360 degree and made from minimum 1 1/2” x 1/4” steel.
22.214.171.124) Front and rear hope to be within 12” of respective U-joint.
126.96.36.199) Drive shaft to be painted white with truck number displayed.
3.10) Exhaust System (updated: Feb 28, 2020)
188.8.131.52) Stock OEM cast iron manifolds.
184.108.40.206) Must consist of two exhaust pipes maximum 2 1/2” O.D. To muffler(s) and maximum 2 1/2” O.D. To exit.
220.127.116.11) Mufflers mandatory.
18.104.22.168) Exhaust must exit below and behind driver. (updated: Feb 28, 2020)
22.214.171.124) One balance pipe is allowed, maximum 2 1/2” O.D.
126.96.36.199) No manifold modifications. (example: grinding, porting, etc.)
188.8.131.52) No inverting manifolds.
184.108.40.206) Front fire wall must be original and in stock location.
220.127.116.11) All holes in fire wall to be covered by using 20 gauge sheet metal, riveted or welded.
18.104.22.168) Do not use duct tape to seal holes in firewall.
3.12) Fire Extinguishers
3.12.2) All extinguishers and systems must be securely and mechanically fastened, and be fully functional and operational.
3.12.3) Fire extinguishers are mandatory in each pit stall. (updated January 7, 2021)
22.214.171.124) Stock complete and in original position from front firewall to rear of cab.
126.96.36.199) Holes must be covered by 20 gauge sheet metal, riveted or welded.
3.13.2) Restrictions 188.8.131.52) No Sub floors.
184.108.40.206) Full stock frame original to make.
220.127.116.11) May be x-braced.
18.104.22.168) No altering or channeling of the frame with the exception of cage construction.
3.15.1) Pump Gas only.
3.16) Fuel Line
22.214.171.124) A steel line must be used, securely fastened under vehicle inside frame rail.
(updated January 7, 2021)
126.96.36.199) Must use gear type clamps.
188.8.131.52) No more than 12” of rubber fuel line in entire system for adapting lines to fuel system components.
184.108.40.206) No plastic or glass fuel filters.
220.127.116.11) No copper lines.
3.17) Fuel Pumps
18.104.22.168) Stock OEM mechanical fuel pump. Any mechanical fuel pump. (updated January 7, 2021)
22.214.171.124) No electric fuel Pumps.
3.18) Fuel Tanks
126.96.36.199) Stock gas tanks must be removed.
188.8.131.52) Approved fuel cell must be in metal container made of minimum 20-gauge sheet metal and securely fastened with four straps of steel minimum 1/8'x2”.
184.108.40.206) Fuel cell capacity maximum 12 imperial gallons.
220.127.116.11) Fuel cell must be centered between the rear frame rails no further back than the differential. Optional 10” back from the diff and 12” off the ground. (updated January 7, 2021) 18.104.22.168) Fuel cell must have a roll over valve and vent must extend through box bed cover to outside.
22.214.171.124) Full stock hood.
126.96.36.199) Securely fastened with two hood pins.
188.8.131.52) Bracing may be removed.
184.108.40.206) Removable hood requires four hood pins.
220.127.116.11) No hood openings or hood scoops, nonfunctioning Ram allowed. (updated January 7, 2021)
18.104.22.168) Oil pressure and water temp gauges.
22.214.171.124) Full width dash panel made of sheet metal.
126.96.36.199) Flammable material must be removed.
188.8.131.52) No cockpit style interiors.
184.108.40.206) Lights are required for night racing.
220.127.116.11) 2 red tail lights mounted on top and rear of box behind spoiler.
18.104.22.168) Max 2” amber lights must visible. (updated January 7, 2021)
22.214.171.124) Mirrors are optional.
126.96.36.199) If used one mounted in center, stock location.
188.8.131.52) Maximum size 3”x12”.
3.24) Pedal Assembly
184.108.40.206) Stock and in stock location.
220.127.116.11) Must be in stock location.
18.104.22.168) Radiator must include overflow container minimum of one litre mounted ahead of engine fire wall.
22.214.171.124) Hoses must have gear type hose clamps.
126.96.36.199) Large radiators are permissible if they are safely installed in a radiator cradle.
188.8.131.52) Electric Fans.
184.108.40.206) Aluminum radiators.
3.26) Rear End
220.127.116.11) Stock passenger car or light truck type differential must be in family line.
18.104.22.168) Rear end may be locked by welding or by using a locking device.
22.214.171.124) No floater axles.
3.27) Ride Height (updated January 7, 2021)
126.96.36.199) Bottom of front cross member (under motor) to ground to be measured at 5.5”. To be measured when coming off track after race.
188.8.131.52) Trucks must retain a level appearance within one inch as measured on the top of the box rail or 8 foot length.
3.28) Roll Cage
184.108.40.206) Six point mild steel roll cage constructed of no less than 1-3/4” O.D. X .095 wall tubing must be securely welded to the frame.
220.127.116.11) Welds must be 360 degrees.
18.104.22.168) Gussets must be present on all adjoining pipes on the main cage.
22.214.171.124) Bends must be smooth and flowing, not crimped.
126.96.36.199) Cage must have a dash bar.
188.8.131.52) Main hoop behind driver must have a cross bar and a diagonal bar that is straight in line with the main hoop.
184.108.40.206) Frame brackets constructed from 1/4” steel mini mum may be added and gusseted to the outside of the frame rails to provide vertical mounts for the roll cage upright tubes.
220.127.116.11) Four door bars on the driver’s side must be extended into the door within 1” of the outer door skin. Mandatory 1/8” plate on drivers side with two rows of vertical connecting bars extending to the frame or rocker panel.
18.104.22.168) Rear support bars extending through the rear window may not extend further back that the center line of the rear axle and must be mounted to the frame rails.
22.214.171.124) Additional bar added to the roof halo (anti–intrusion).
126.96.36.199) Roll bars in drivers area must be padded with roll bar padding.
188.8.131.52) Front hoop with maximum 3 bars per side.
184.108.40.206) One foot protection bar extending through the front firewall will be allowed for safety purposes.
220.127.116.11) Approve kit cages are strongly recommended.
(Note: not all kit cages are approved for this class)
18.104.22.168) Kit cage manufacturers have multiple configurations and only configurations conforming to these rules will be permitted.
22.214.171.124) No chrome moly tubing.
126.96.36.199) No threaded pipe, pipe fittings, lap welded pipe, magnesium or aluminum.
188.8.131.52) No square tubing, channel or angle iron will be permitted in the construction of the roll cage or bracing.
184.108.40.206) No flush grinding of welds.
220.127.116.11) No Exterior bars.
18.104.22.168) A racing bucket seat securely bolted to the roll cage.
22.214.171.124) Approve head restraint made from energy absorbing material.
126.96.36.199) Seats must be positioned completely left of center line of truck.
3.30) Seat Belts
188.8.131.52) Seat belts are 5 years from first Tech. (updated January 7, 2021)
3.31) Skid Plates
184.108.40.206) On all four corners with no square edges down.
220.127.116.11) Must be the lowest point of the truck.
(example: All tires and rims removed, truck must sit on skid plates)
18.104.22.168) No brake shoes allowed as skid plates.
3.32) Steering Wheel
22.214.171.124) Minimum 2” think steering wheel pad.
126.96.36.199) Stock collapsible steering wheel.
188.8.131.52) Removable racing steering wheel with quick release metal hub is strongly recommended.
3.33) Suspension – General
184.108.40.206) Suspension and steering parts are to be stock OEM with no modifications and no rear adjustables. (updated January 7, 2021)
3.33.2) Optional (updated: Feb 28, 2020)
220.127.116.11) Front adjustable spring pockets.
18.104.22.168) Coil springs and sway bars may be interchanged, providing they fit original mounting.
22.214.171.124) Hubs may be drilled for larger wheel studs.
126.96.36.199) Adjustable sway bars (seam joint) as long as mounted in factory location.
(ONLY pre-1989 GM) (updated: Feb 28, 2020)
188.8.131.52) Allowed to relocate only upper shock mounts to top of frame. (+/-1”) (updated: Feb 28, 2020)
184.108.40.206) No re-positioning of lower shocks or upper and lower control arms.
(updated January 7, 2021)
220.127.116.11) No racing shocks; lumber or chains or relocating lower shock mounts.
18.104.22.168) No weight jacks.
22.214.171.124) No spring dampeners between the coils.
3.34) Suspension – rear leaf spring type
126.96.36.199) Spring Perches must remain on stock frame rails. No adding to stock frame. Square bodies can move it to maintain wheelbase. Must be legal mount. (updated January 7, 2021)
188.8.131.52) 4-hole shackle is allowed.
184.108.40.206) Rear axle spring perches may be changed to allow under slung to be come over slung and vice versa. Left to right measurements must remain the same.
220.127.116.11) Swapping and inverting of rear spring shackles side for side.
18.104.22.168) Rear perches can be positioned to obtain ride height and level of box.
3.35) Suspension – Rear coil spring type
22.214.171.124) Trailing arms and bushings must be stock OEM, non-adjustable using stock mounting points.
126.96.36.199) Stock spring pockets.
188.8.131.52) Steel spacers between rear axle perches and trailing arms for adjustment of level of box and pinion angle only.
184.108.40.206) Spacer thickness to remain the same from left to right.
220.127.116.11) Stock standard rod may be reversed from push to pull position.
18.104.22.168) Length is nonadjustable.
22.214.171.124) Fabricated mounts are non-adjustable.
126.96.36.199) Standard rod angle must be same as stock.
188.8.131.52) U-bolt must not be lower than the skid plates and must be trimmed to nut.
3.37) Transmission (automatic)
184.108.40.206) Stock functioning torque converter must be retained.
220.127.116.11) Approved shifter. (no rods)
18.104.22.168) 180 degree scatter shield made of 1/4” plate the width of the bell housing.
22.214.171.124) All forward gears must be working as originally produced.
126.96.36.199) Operating reverse gear.
188.8.131.52) May use heavy-duty parts.
184.108.40.206) Shift kits allowed provided full shift pattern is retained.
220.127.116.11) Transmission cooler is highly recommended and not allowed behind the front firewall.
3.38) Transmission (manual)
18.104.22.168) OEM 3 speed or 4 speed.
22.214.171.124) All forward gears must be working as originally produced.
126.96.36.199) Reverse gear.
188.8.131.52) Must retain brass synchronizer rings.
184.108.40.206) No adaptor plates.
3.39) Transmission Clutch and Flywheel
220.127.116.11) Stock OEM type single friction disc steel clutch units only.
18.104.22.168) Minimum clutch disc diameter 10” Flywheel weight, no less than 13 lbs.
22.214.171.124) No coupler type, multi disc clutches or modified stock units.
126.96.36.199) No aluminum clutch parts.
188.8.131.52) The shortest sidewall allowed is 60 series.
184.108.40.206) OEM passenger car type tires.
220.127.116.11) Tires are subject to approval of the Official in charge.
18.104.22.168) After-market racing rims allowed. Steel wheels or aftermarket wheels with a 3/16" center minimum, welded 360 degrees. Mandatory on passenger side. Maximum 8" width. No less than 2" back spacing - measured from back of rim to back of mounting surface. 22.214.171.124) Tire rule to meet hobby stock rule. (updated January 7, 2021)
126.96.36.199) No studded, ground grip or recap tires.
188.8.131.52) No “V” or higher speed rated tires.
184.108.40.206) No altering of tires by treatment. (softeners etc.)
220.127.116.11) Durometer and/or other methods will be used to check tires.
3.41) Water Pump
18.104.22.168) OEM cast iron water pump for GM and Ford engines.
22.214.171.124) Chrysler engines my use OEM aluminum pumps.
126.96.36.199) Standard production no electric water pumps. (updated January 7, 2021)
3.42) Windshield and Windows
188.8.131.52) Window glass must be removed with the exception of the front windshield.
184.108.40.206) Windshield clips must be a minimum of 1”x6”x1/8” steel and positioned two at the bottom, two at the top and riveted or bolted to the body.
220.127.116.11) Windshields must have a minimum of 3 interior supports, following the contour of the windshield. No more than 1” away, spaced a minimum of 10” apart. Supports must be made of 1/2” steel rods or 3/8” schedule 40 black pipe.
18.104.22.168) Lexan windshields are allowed and must be 1/8” minimum thickness, full width, and pop riveted with 1/2” heads maximum 8” apart.
22.214.171.124) Lexan rear window.
126.96.36.199) Advertising decal or sun shade on top edge of front windshield may not exceed 8” in height.
3.43.1) Requirements (updated: Feb 28, 2020)
188.8.131.52) Trucks must weigh 3750 lbs. with the driver. (updated: Aug 15, 2020)
184.108.40.206) Total left side weight 55% maximum.
220.127.116.11) Total rear weight 45% maximum.
18.104.22.168) Refer to general rules for regulation added weight.
22.214.171.124) No topping up fuel tank to meet minimum weight.
126.96.36.199) 14” or 15” diameter stock type steel wheels with a maximum of 8” measured from bead seat to bead seat.
188.8.131.52) 3/16” center minimum thickness. 125” wheels must have the center welded 360 degrees to outer shell.
184.108.40.206) Maximum offset is 2”. Wheel stud threads must protrude through the wheel nut.
220.127.116.11) 1” wheel nuts on all four wheels.
18.104.22.168) 1/2” or 5/8” diameter wheel studs.
3.44.3) Restrictions (updated: Feb 28, 2020)
22.214.171.124) No homemade, aluminum or mag style wheels.
3.45) Wheel base
126.96.36.199) Must retain the stock wheel base for the body used, as per Manufacturers specifications.
188.8.131.52) Minimum 130 inches.
184.108.40.206) Wheel base variance may not exceed specifications by 1” overall.
3.46) Window net
220.127.116.11) A web style window net, minimum 16 x 18 inches is mandatory. It must be a quick release type accessible from the exterior. No chicken wire nets, or plastic snow fence allow. Window net rods must be a minimum 3/8” steel rod fastened at the bottom and with release at the top.
4) Engine Specifications
4.1) Engine – General
18.104.22.168) The following engines are allowed to a maximum stock engine displacement.
22.214.171.124) GM and Chev 350 CID.
126.96.36.199) Dodge 360 CID.
188.8.131.52) Ford 351W CID. (no M or C engines)
184.108.40.206) GM 602 Sealed Crate with 2-barrel carb allowed Rochester 500CFM.
(To be watched. If motor out preforms the other trucks, action will be taken by class) (updated January 7, 2021)
220.127.116.11) No interchange of engines between manufacturers.
4.2) Block Assembly
4.2.1) Requirements (updated: Feb 28,2020)
18.104.22.168) Must be production with standard external measurements in all respects with the exception of the permissible overbore of .080”. (Updated: Feb 28, 2020) 22.214.171.124) Minimum piston to head clearance .045” with gasket.
126.96.36.199) Pistons Cast or hypereutectic.
188.8.131.52) Stock production lifter bore must be maintained.
184.108.40.206) Pistons, rods, crank, and block must be original manufacturers Combination.
220.127.116.11) Crankshaft and harmonic balancers must be stock OEM.
18.104.22.168) Crankshaft must weigh within 5% of stock.
22.214.171.124) Rotating assembly: (updated January 7, 2021)
1-piece rear seal Eagle B13202L03068 Scat SCA-1-92300 BIE
2-piece rear seal Eagle B13202E03068 Scat SCA-1-92200BIE
126.96.36.199) Deburring of block and related parts.
188.8.131.52) No stroking or de-stroking.
184.108.40.206) No major removal of metal.
220.127.116.11) No aftermarket connecting rods only after market rods with rotating assembly.
(updated January 7, 2021) 18.104.22.168) No forged pistons.
22.214.171.124) Hydraulic flat tappet.
126.96.36.199) Stock OEM type rocker arms and push rods.
188.8.131.52) No roller cams.
184.108.40.206) No roller lifter assemblies or mushroom type tappets.
220.127.116.11) No “rev kits” or any type of mechanical assistance exerting a force to assist in closing the lifter and/or push rod.
18.104.22.168) No roller or roller tip rocker arms.
22.214.171.124) No gear drives.
126.96.36.199) No more than 500 lift hydraulic, all other components must remain stock.
188.8.131.52) Holley 4412 or Rochester 500 CFM.
184.108.40.206) Two throttle return springs.
220.127.116.11) One stock gasket between carburetor and intake.
18.104.22.168) Carburetor must retain model/serial number.
22.214.171.124) Removal of choke parts and changing carburetor jets allowed, no other alterations or modifications.
126.96.36.199) One inch maximum adaptor plate including gaskets may be used between a two barrel carburetor and four barrel intake manifold.
188.8.131.52) 4 barrel carburetor is optional a factory Rochester for manufacturer.
4.5) Connecting Rods 4.5.1) Requirements
184.108.40.206) OEM standard productions rods are permitted and must retain stock identification.
220.127.116.11) Connecting rod must retain manufacturer's nominal center to center distance. (example: 350 Chevy 5.700”)
18.104.22.168) No polishing of the rod bearings.
22.214.171.124) High performance rod bolts.
126.96.36.199) Conversion to full floating.
188.8.131.52) No “pink” or “bow-tie” connecting rods for Chevrolet.
184.108.40.206) No Ford motorsport or Chrysler direct connection connecting rods.
4.6) Cylinder Heads
220.127.116.11) 73 cc OEM cast iron with 1.94 intake valves and 1.5 exhaust valves.
18.104.22.168) Stock location of rocker studs must be retained.
22.214.171.124) Intake gasket maximum 0.135” thickness per side.
126.96.36.199) Three angle valve jobs are permitted, however, you may not enter the bowl area of more than .500” from top of valve seat.
188.8.131.52) No dual springs. (updated January 7, 2021)
184.108.40.206) Pinning or screw in studs with guide plates.
220.127.116.11) Locking rocker arm adjusters.
18.104.22.168) No deburring, grinding or polishing of intake or exhaust ports.
22.214.171.124) No modifications to intake or exhaust manifolds bolt location. 126.96.36.199) No Angle plug heads. (Chevrolet)
188.8.131.52) No gasket matching.
4.7) Engine Location
184.108.40.206) Engine must be mounted in stock location (+/-) 1 1/2 ” from stock location or to firewall whichever comes first. (updated January 7, 2021) 220.127.116.11) Stock location on stock OEM engine mounts.
18.104.22.168) Chained down to frame rails on both sides from the cylinder head or exhaust manifolds at front.
22.214.171.124) No lowering or moving engine back.
4.8.1) Requirements (updated: Feb 28, 2020)
126.96.36.199) OEM ignitions. All ignition systems must be strictly stock or direct stock.
188.8.131.52) No multiple spark, CD type.
184.108.40.206) No After-market type ignition systems.
220.127.116.11) No dual point type distributor.
18.104.22.168) See safety rules for specification of master kill switch, starter safety switch and ignition switch.
4.9) Intake Manifold
22.214.171.124) Cast iron stock OEM production two barrel or four barrel intakes.
126.96.36.199) No grinding, polishing or coating of any type, internally or externally.
4.10) Oil Pan
188.8.131.52) Oil filter must attach directly to block.
184.108.40.206) Wind-age tray.
220.127.116.11) No external modifications to oil pan.
18.104.22.168) No crankshaft scrapers.
4.11) Oil Pump
4.11.1) Requirements 22.214.171.124) Internal oil pump.
126.96.36.199) Maximum flat top piston.
188.8.131.52) May be press fit or full float type.
HOBBY STOCK CAR SERIES RULES
Updated: January 8th, 2021
Thank you for choosing to review Regina Auto Racing Club’s Hobby Stock rules, as most of the rules lean towards following the IMCA Hobby Stock rules, we do have a numerous amount of exceptions as well as we are unprecedented in our mission to make racing fun and cost effective as we trend forward.
Lap time rule: The lap time rule will be removed but cars will be closely monitored. If at anytime track officials and/or club executives believe it to be getting out of hand and non-competitive the time rule may be reinstated. (updated January 8, 2021)
Regina Auto Racing Club Executive and/or Officials may alter, change, and implement penalties and methods to keep the racing competitive as per the set forth guidelines.
History has continually been repeated, faster cars go faster and faster, and eventually there are no cars left in the class to compete against. We are undertaking bold steps to change the repetitive nature of stock car racing, as so we can maintain a comfortable car count.
1. This class is designed to be an entry-level class and it is the intention of these rules to keep it an entry-level class.
2. No in car lap times allowed.
3. Cars MUST be North American cars of all metal construction. Rear wheel drive. Minimum wheelbase of 100”. Station Wagons allowed. No Convertibles.
4. All parts MUST be in family line. Ford and Dodge bodies and drive train may be mounted on Chevy frames, motors must be mounted the factory distance from factory firewall. Rubber mounts may be removed.
5. All bodies and body panels MUST meet factory dimensions and appearance for year and model. Wheel wells may be radiused to a maximum of 5” from the outside circumferences of the tire. 100% body parts MUST be run each race day. Stock appearing bumpers front and rear. Cars running single skin steel bumper can run .095”, 1 3/4 pipe for mounting purposes. Rubber bumper covers can also run .095” pipe behind cover in place of original bumper. Pipe MUST be hidden behind bumper or cover, and not stick out past ends. Fender edges MUST be rolled inward resulting in no sharp edges.
6. Frames MUST be of stock dimensions to body. Sub-frame connectors and boxing of frames allowed. No modification(s) for power train or suspension clearance allowed. Sub-frame connectors may go through floorboards (floorboards must then be welded to connectors). Frame may be re-enforced. Engine MUST be in stock location to frame for model and year of car.
7. Floorboards and front firewall MUST remain stock and intact in stock location. All holes in front and rear firewalls and floorboards MUST be covered with a minimum of 22-gauge steel. No sheet metal screws, or galvanized material are to be used anywhere. In the construction of car.
8. No interiors with sub-floors or cockpit style interiors.
9. Windshields MUST be full width safety glass or minimum 1/8” thick Lexan. All other glass MUST be removed. Glass windshields MUST have a minimum of 4 safety clips composed of at least
1/8”x1”x6” steel. Lexan MUST be securely fastened with 3/16” diameter pop rivets with 1/2” heads spaced a maximum of 8” apart. All windshields MUST have a minimum of 3 safety rods on the inside of the windshield, 1/2” diameter rods or 3/8” black pipe spaced a minimum of 10” apart. Driver’s side deflector is recommended, maximum length of a vertical line from the top of the windshield to the top of the door. Deflector MUST not flare outside of the top edge of door. Lexan only.
10. All burnable, chrome strips, door handles, lights, trailer hitches and white metal MUST be removed.
11. Doors must be securely welded or bolted shut. Front hood and trunk lids must be securely fastened and held shut. (example: chained down or hood pins)
12. A fuel cell with a maximum of 12 gallons, enclosed in a 22-gauge steel case, and must be securely fastened as far forward in the trunk as possible with 2-2”x 1/8” steel straps. Straps are to be bolted through the floor to two similar 2”x1/8” straps with a minimum 3/8” bolts or redi-rod. No more than 12” of rubber fuel line in whole fuel system. Fuel line must run through sealed pipe from front firewall to rear firewall in driver compartment. Any variations are subject to approval of the Technical Committee. (updated January 8, 2021)
13. Front and rear drive shaft hoops of 360 degrees mandatory. Front hoop to be 1 1/2”x3/16” steel minimum, bolted to the floorboards with minimum grade 5 bolts and located within 12” of the front u-joint. Rear hoop recommended. 5/16 chain allowed.
14. Battery must be located behind driver’s seat and must securely mounted with minimum 3/8” rod. See fuel cell mounting requirements. Must be sealed in a suitable container (marine battery box) to prevent spillage in case of a rollover, or it can be in the firewall sealed from the driver. Any deviations see Tech Inspector. Battery disconnects mandatory. Battery can be located in outside of car in firewall.
15. Starter must be working at all times.
16. Lights: see general rules. (maximum 2”)
17. Seat belts must be 4-point minimum, 5-point recommended. Belts must be a minimum 2” width. No homemade belts. Must be securely mounted to roll cage and seat frame. 5 years from owner Tech in.
18. Mandatory neck collar must be worn on track at all times, a hans style of neck restraint is recommended.
19. All cars must have a 2.5 lb. fire extinguisher. (optional) Must have fire extinguisher in each pit stall.
20. A web style window net, minimum 16” x 18” is mandatory. It must be a quick release type accessible from the exterior. No chicken wire nets, or plastic snow fence allowed. Window net rods must be a minimum 3/8” steel rod fastened at the bottom and with release at the top.
21. Brake pedal and mounting MUST be in original factory location for that make, model, and year.
Brake mechanisms on all four wheels MUST be working at all times and are subject to spot checks. (updated January 8, 2021)
22. Neutral, clutch or brake safety switch must be used in the starting system.
23. Remember, this is an entry-level class whereby you can race and have fun without investing thousands of dollars in your car. The major emphasis is on fun and safety. The Technical Committee and the Executive will administer this class with that in mind.
24. Car must always weigh 3300 lbs. with driver. NO EXCEPTIONS. All ballast MUST be securely fastened and painted white with the car number on it. Maximum left side weight is 55% with the driver in the car – measured at any time. No more mirrors.
25. Car ID Number. Either use numbers as described in the general rules or an easily recognized theme car.
26. One convex style mirror on drivers side allowed maximum of 5” diameter and mounted within the widest point of the exterior of body. Hans only. No side mirrors without Hans.
27. Transponders must be installed between the rad to the front of tire area.
SUSPENSION, WHEELS & TIRES
1. Front: Any stock suspension parts in the family line may be used and MUST fit without any modifications to any parts. MUST have stock mounts in stock location. No modifying of stock mounts allowed. Slotting of camber adjusting holes is allowed on AMC, Chrysler, and Ford. GM must be stock location. Camaro cannot mount tubular arms for more than 1” camber; level front & back.
2. Rear: Leaf spring car – stock mount to frame MUST be used. Mount to be in stock location with original stock floorboards. Can adjust 1/2" plus or minus.
3. Coil Spring Car: Stock mount to frame MUST be used. Drilling of holes is permitted. Stock differential brackets with adjustment holes allowed. Rear lower control arms MUST be stock to the chassis. Boxing of rear lower control arms is allowed. All suspension mount bushings MUST be OEM rubber or urethane replacement. No adjustable ball joints allowed, only stock appearing greaseable ball joints.
4. Working shock absorbers in stock locations with stock mounts to chassis MUST be used. No adjustable shocks of any kind. Shock extensions allowed but MUST retain original mounting location and geometry.
5. Differential housing MUST be in family line. No floaters. Stock gear ratios not exceeding 4.88. (all makes) Can run after market hardened axles – must be stock rear end.
6. The minimum ride height of 4.0” is measured from the lowest point of the frame side rail with the driver in the car as raced.
7. Skid plate on all four corners with no square edges down. Must be the lowest point of the car with tire removed. No brake shoes allowed as skid plates.
8. All suspensions must remain stock. No weight jacks, heating springs or chaining down of suspension allowed. Camber adjustments optional on right front wheel. Tech Specs.
9. Tires MUST have a maximum width of P255. Shortest sidewall is 60 series. Radial or bias ply street tires allowed. No ground grip studded or recap tires. Only original equipment passenger type tires.
No aftermarket racing tire(s) with or without D.O.T. numbers. No “V” or higher speed rated tires. No chemical treatment of tires.
10. Steel wheels or aftermarket wheels with a 3/16” center minimum, welded 360 degrees. Mandatory on passenger side. Maximum 8” width. NO less than 2” back spacing – measured from back of rim to back of mounting surface.
11. 1” wheel nuts MANDATORY on all wheels.
12. Upper control arm: Minimal cutting of passenger upper control arm to access shock absorber mounting nut allowed. Non-adjustable tubular upper control arms are allowed, plus or minus 1” of stock lengths. MUST PASS TECH APPROVAL.
13. Side body protection bars: No more than 1” diameter. To be mounted on quick release pins. Maximum two mounting points to roll cage. Not to extend any further than rear of front wheel well and no further than rear of front wheel well and no further back than the front of the rear wheel well.
14. Coil springs: A spacer cup that holds coil securely in place in stock location; to prevent spring from popping out and leaving car.
15. Mini spools are allowed.
16. May run disc brake calipers but must remain single piston.
17. Proportioning valves allowed but must be installed outside of cabin area.
1. Minimum 4-point cage welded to frame; six-point roll recommended. Cages made from 1 1/2” schedule 40 pipe minimums strongly recommended. All joints in cage MUST be welded 360 degrees; joints in main cage must have gussets. No galvanized pipe threaded or cat joints. MUST have a dash bar and a cross bar behind the driver. Front hoop allowed with a maximum of three support bars per side. Minimum of 3 driver’s door bars and two passenger side door bars.
NOTE: If the car is to have a passenger, that side must be constructed the same as driver’s side. Also, mandatory 1/8” plate one driver’s (and passenger’s) side with two rows of vertical connecting bars on the driver’s side extending to the frame or rocker panel. Unibody or x-framed cars with a roll cage mounted through the floorboards to a like plate with 4 1/2" diameter bolts. MUST have a bar from the top of the door bar to the window pillar. Main cage halo dimensions: Maximum 12” from the right edge of stock roof skin. Maximum 3” down from roof skin. Modifying roof skin is not allowed. No “S” bends in door bars. Roll cage padding – see Safety Rules.
2. Approved racing seats are mandatory. Seats must be mounted to the roll cage. (updated January 8, 2021)
3. Only one front bar, maximum 2” O.D. mounted behind bumper is allowed. 108 walls not outside of tires.
4. Radiator may be mounted in its basic location, no coolers or any kind in the driver’s compartment. Overflow can be minimum 1 litre securely mounted mandatory. No antifreeze allowed. Cars are allowed to have Enduro type radiator support.
1. All casting MUST be present and unaltered. Heads must be stock casting.
2. Engine and manifolds must remain stock and mounted in stock location with stock mounts for the make and model of the car. Engine size is not controlled. Engine size must be chained down on both sides. No stroker motors allowed. Adopt street rules for engine size original 73cc heads 68cc 327 engines.
3. Carburetor: Single stock carburetor, two or four barrel, will be accepted. No adapter plates or carb spacers allowed. No Holley, carter or edelbrock carb allowed. No modifications allowed. With the expedition of choke plate removal, and holes may be drilled to help in the idle circuit. No other work is permitted on the carburetor. Crate engines refer to rule #17. One spacer allowed 500 CFM. Crate must run stock no Holley.
4. 2.5” maximum cowl hood permitted. NO ram air or air cleaners out of the hood. Can be open 360 degrees. Cold air induction is permitted. (updated January 8, 2021)
5. Distributor: Only stock distributor and stock coil allowed. No dual point systems. Electronic ignition may be used only if stock in that make. NO external modules
(except Ford) or external modifications. NO modifications to stock mounting of module. No MSD boxes.
6. Intake Manifold: Only stock OEM, two or four barrel, cast iron intakes allowed. No grinding or coating of any kind is permitted, internally or externally.
7. Water Pump: Stock OEM cast iron water pumps only for GM engines. Ford and Chrysler engines may use stock OEM aluminum water pumps. No electric.
8. Oil Pan: Any steel oil pan that fits with no modifications to the frame. Windage tray must be used. Oil filter MUST attach directly to block. Gates and traps allowed.
9. Fuel Pump: Stock mechanical fuel pump only. May use Holley mechanical fuel pump. Absolutely no electric fuel pumps. No glass or plastic fuel filters allowed.
No “Cool Cans”. The only fuel allowed is gas that is available at local consumer (NO commercial outlets). NO ADDITIVES, NO OXYGENATION, NO AVIATION FUEL, NO RACE FUEL.
10. Transmission: Any stock automatic transmission with mating stock converter or 3, 4 and 5 speed manual transmission. All transmissions must have all gears working. Transmission adapter plates are not permitted. Stock clutch disk, pressure plate and flywheel. 10” minimum diameter clutch disk. Aluminum clutch parts and aluminum flywheels are not permitted. No triple disc on all standard transmissions must have a scatter shield.
11. Exhaust: Mufflers optional. Stock OEM production cast iron manifolds only.
(2 1/4 exhaust manifold). No modifications allowed. No adapter plates. Maximum exhaust pipe size is 2 1/2” maximum O.D. from the muffler to the exit. One “H” pipe allowed. Exhaust may exit under car, below and behind driver. A maximum or 8” of flex pipe allowed per side close to exhaust manifolds. MUST MEET 100 DECIBEL RULE.
12. Plastic Fans: Recommended – if a steel fan is used, a steel safety ring approved by the Technical Inspector must be used. Stock OEM electric fans allowed. No after-market “race fans”.
13. Radiator: Aluminum radiators allowed.
14. Cylinder Block: MUST be a car iron OEM block with the exception of permissible overbore. An OEM lifter bore MUST be maintained. Deburring of block and parts permitted. Balancing optional. Block must maintain +0.015 deck height. (GM) Deburring of stock rods is permissible. Stock rod length to the OEM block that is being used. Crankshaft MUST be OEM and harmonic. Balances MUST be OEM. Rotating assembling’s allowed.
15. Pistons: Forged pistons allowed. Pistons can be flat top maximum, piston, rod, bearing, pin and ring assembly can weigh a minimum of 1200 grams. All pistons MUST have two compression rings and an oil ring.
16. Cylinder Heads: Only stock OEM cast iron heads permitted. Absolutely no deburring, grinding or polishing of intake or exhaust ports permitted. Chevrolet engines are restricted to 1.94” intake valve diameter and 1.5” exhaust valve diameter. All other engines MUST be stock for year and engine model used. Chevrolet engines with a displacement of 337 cube inch or less are restricted to a minimum 68cc chamber volume. 350 cube inch Chevrolet is restricted to a minimum of 73cc chamber volume. Guide plates are permitted. The maximum Chevrolet valve spring diameter is 1.266”. Com-positions cylinder heads. Ford and Chrysler heads are restricted to a minimum 64cc chamber volume. 1.5 or 1.6 stamped steel rocker arms, no roller assemblies. No solid lift cam/lifters. All heads CC’s will be verified by casting numbers, and by manufacture specifications.
17. Crate Engine: All crate engines may only run, Rochester 2-barrel carb and speedway motor carb adapter, part #135-350G. 500 CFM no Holley’s.
18. Motor Mounts: May use solid motor mounts, but motor must be mounted in stock location.
IF YOU HAVE ANY CONCERNS ABOUT ANY RULES STATED ABOVE REFER BACK TO RULE #1.
MINI STOCK CAR SERIES RULES
Kings Park Speedway – Mini Stock Rules
Published Date: April 4, 2018 Updated:
By registering as an owner or driver you agree to be knowledgeable and bound by the contents found herein and in the General Rules.
1. Build Guidelines A. General:
Due to the unit body construction and size of sport compact cars, with reduced crush area and strength to absorb impact, structural reinforcement of bumper mounts, suspension mounting points and other heavily loaded areas are allowed at the discretion of the Competition Committee. Suspension and tire modifications listed below are allowed to improve on-track handling and to improve parts availability and competitiveness’ of older cars.
B. Minimum Weight:
1) Minimum weight 2,000 lbs. Weight to be measured with driver in car. When required, weight will be added first as additional roll cage bracing then as ballast weight bolted to the floor pan. Car weight and cc to be displayed on top left front fender.
2) 4 valve/cylinder OHC engines, 1.23 lbs/cubic centimeter of engine displacement. (example: 2.0 litre, 4 valve engine x 1.23 = 2,460 lbs)
3) 2 and 3 valve/cylinder OHC engines, 1.08 lb/cubic centimeter of engine displacement. (example: 2.0 litre, 2 valve engine x 1.08 = 2,160 lbs)
4) Camshaft-in-block engines, 0.98 lbs/cubic centimeter of engine displacement.
C. Minimum Ride Height:
3” at sub-frame of the car with driver excluding skid plates. NO adjustable
ride height mechanism(s) allowed. Sub-framed connector is not considered part of ride height.
A. Styles Allowed:
1) Any mass-produced front or rear wheel drive compact or sub-compact car, maximum wheelbase 106.
2) NO convertibles.
3) T-top cars, sunroofs MUST be replaced with permanently mounted side panels.
4) Removeable hard-top roofs must be factory to car and permanently mounted.
1) Bodies and body panels MUST meet factory dimensions and appearance for year and model.
2) 100% of body parts MUST be in place at start of each race day.
3) Inner body panels MUST remain except as provided in rule B. 11) of this section.
4) Fender edges MUST be rolled inward resulting in NO sharp edges.
5) Burnable, chrome, hitches, white metal, glass, plastic and mirrors MUST be removed, with the exception of dashboard and gauges.
6) Stock plastic outer mirrors extending outside the width of the body MUST be replaced with metal frame mirror(s) (Example: round spot mirror) mounted so as the outer edge of mirror does not extend past width of body.
7) Door handles may be removed and openings filled with either welded or riveted sheet metal. NO sheet metal screws allowed.
8) Headlamps and tail lights MUST be removed. See General Safety Rules.
9) Rear and side glass MUST be removed or coated with window retainer film. Rear side windows may be replaced with Lexan or Polycarbonate.
10) Windshield MUST be stock safety glass retained with minimum 1 x 6 x 1/8 steel straps riveted or bolted to body, 2 on the top and 2 on the bottoms. All windshields must have a minimum of 3 safety rods on the inside of the windshield, diameter rods or 3/8 black pipe spaced minimum of 10 apart attached to roll cage centered in the windshield. Cracked or damaged windshields that impair drivers’ vision will be required to be replaced.
11) Doors may be welded front and rear using three 2” welds, top center and bottom or bolted, chained or pinned during competition. Drivers left door may be shinned to allow for required roll cage construction. Passenger right door may be skinned ONLY to accommodate optional bent tube roll cage construction (as per roll cage specs). Door skins may be replaced with 22ga sheet metal and MUST retain sock appearance. Drivers door opening may be enlarged for driver entry, MUST NOT be lower than the top horizontal cage door bar.
12) Hood and trunk lid, if hinged require 2 hood pins each. If removable, require 4 hood pins each.
13) Stock rear spoilers only, NO aftermarket parts allowed.
C. Bumpers, Tow Straps and Rub Rails:
1) Bumpers MUST have stock appearance; metal guards of 20ga sheet metal extending from bumper ends to body should be riveted in place to prevent gouging. Stock bumpers may be reinforced with a single length of .095 by 1-1/2 round tubing concealed by bumper cover.
2) Left side rub rail recommended and MAY be required at the discretion of the Technical Committee. Rub rail MUST be 1-3/4 diameter steel tube, mounted on left side, ends bent and cut to be flush with body between front and rear wheels. Space between door panel and rub rail is NOT to exceed 1-1/4.
3) Tow straps are mandatory on the front and rear of the car.
A. Frame MUST be stock with sub-frame connectors recommended, one per side, similar size and material to stock rails. Sub-frame connector is not considered part of ride height.
B. Front and rear strut tower braces allowed.
4. Roll Cage
A. Six-point roll cage of mild steel, gusseted, fully welded construction of the highest quality only. All welds must be 360 degrees.
1) Kit Cage CSC-RCK501-4 (suggested).
B. Minimum roll cage construction for a new build car is 1.75 x .095 round ERW 1010 mild steel tubing securely+ welded to frame or unit body. Bends MUST be smooth, NOT crimped or excessively ovalled. Cars built with 1.50 x .095 will be Grandfathered in.
C. Bars mounting to body MUST weld to minimum 4” squares by 1/8” steel plates welded to floor. Floor plates should also be welded to sill or bulkhead reinforcement and may be bent to join higher up on sill.
D. No bolted-in cages. If cage is bolted in there must be plate bolted on the top and bottom.
E. Two rear supported brace tubes joining the main hoop no more than 6” from top which may run straight back or form an X to trunk floor area.
F. One bar running from the main hoop to the windshield bar as roof support.
G. Minimum three door bars bent as close to the outer skin of the driver’s door as practical, NO straight bars on driver’s side. Two vertical connector bars joining door bars from top bar down to sill (rocker panel).
H. Steel plate panels of 1/8 thickness MUST be welded to the outer side of the door bars so as to completely cover the area beside the driver from the front door post to the main hoop and from top door bar to the sill plate (rocker panel). See also General Safety Rules.
I. On passenger side, minimum two straight door bars. Optional: minimum two bent door bars on passenger side may be used bent to carry into the door cavity as close as practical to the outer door skin of the door, door may be skinned with this option.
J. Cage MUST have a bar from the top of the door bar to the window A-pillar bar on both sides of cage. (see diagram 2A in General Rules)
K. Roll cage should be tabbed to body wherever possible. ANY cage bars which can come in contact with the driver MUST be covered with approved roll bar padding.
L. As of January 2015, all NEW cars being built, the roll cage must include the Earnhardt bar (a vertical bar that extends from the horizontal dash bar to the halo). Or may be installed on front to back on top of the halo diagonally or straight across to prevent collapse from impact on rollover, but still must allow for extraction of the driver through the roof. This bar must be constructed of 1.75 x 0.095. (see diagram 2A under General Rules)
A. Floor including trunk pan MUST be in stock location. Holes MUST be filled with minimum 22ga sheet metal or OEM panel welded or riveted. Rusted floor panels must be removed and replaced.
B. Firewall MUST be stock steel in the original stock location. Holes MUST be filled with minimum 22ga sheet metal welded or riveted.
C. Seating: Aluminum oval track racing bucket seat with right-side head support, properly mounted to the roll cage is recommended. Minimum distance of 36 from rear of seat to center of differential. Full containment head rest recommended.
1) Seat belt mounts MUST be welded solidly to the roll cage. Seat belts cannot be older than 5 years old.
2) Shoulder belts MUST be mounted solidly to the roll cage at the correct height to align with belt openings in the seat back.
3) A seat back brace tied in to the roll cage MUST be in place for all seats. Seat may be adjustable, including back brace.
A. MUST be the same type as car was produced with NO 4-link in place of leaf springs, etc.
B. Any stock type shock or strut allowed, NO adjustable shocks, MUST mount to stock location, NO coil-over suspension.
C. Any OEM style front anti roll bar is allowed, MUST mount to body at stock location, suspension end may be modified. A rear anti roll bar may be added, two stock bars may be stacked.
Any OEM style spring allowed, MUST fit in OEM spring pocket. NO spring spacers are allowed. Rubber spring helpers are allowed. Spring may be cut to alter ride height.
E. Front and Rear Camber: adjustment may be achieved with strut camber plates, eccentric adjusters, crash bolts, relocation of strut tower, lengthening of the lower control arm, or addition of adjustable heim joints on the lower control arm. All welding, fabrication, and parts used MUST be of highest quality, any pivot bolt changes should use a larger than stock diameter bolt if possible. Consult with Competition Committee for any unusual design.
F. Right front adjustable control arms are allowed.
G. Maximum Alignment Specs:
1) Right Front – Negative 10 degrees camber.
2) Left Front – Positive 8 degrees camber.
H. Left Side tire MUST NOT extend past the body more than two(2) inches measured at the widest part of the body near the tire. Steel rub bar may be installed or required to meet specs. (see Section 2 C)
A. All steering components MUST be stock to car, in stock location. NO welding of steering parts.
B. Collapsible steering column and quick release steering wheel with minimum two(2) inch center padding is recommended.
A. ONLY naturally aspirated four cylinder engines allowed.
B. Maximum displacement:
1) 2.5 litres for 2 and 3 valve/cylinder engines.
2) 2.0 litres for 4 valve/cylinder engines.
3) 2.2 litres GM Ecotec.
C. Engines may be rebuilt using stock replacement parts. Maximum overbore .040; piston MAY NOT protrude above block deck at TDC (zero deck height); maximum cylinder head resurface 010.
D. NO lightening, stroking, de-stroking, porting, gasket matching, de-burring of ports, acid etching, extrude honing, mismatching of components, or anything else you can think of. Stock MEANS Stock.
E. Engine MUST have originally been available in the chosen body. Engine swaps MAY be allowed at the discretion of the Competition Committee.
**Any cars that are Grandfathered in will be monitored closely and may have to add weight.**
F. Maximum factory redlines of 7500 RPM, maximum factory horsepower rating of 150.
G. Engine oil pan may have baffles added, NO capacity modification to stock pan. After market pans allowed.
H. We will be taking the number off of the engine block and document it at the beginning of the season.
9. Fuel System
A. Fuel tank relocation is required for cars with the tank mounted within 12” of the rear of the body, measured at the rear bumper body mount. Centrally mounted, under floor stock tanks allowed, skid plate recommended.
B. Fuel filler: Any fuel filler tube visible inside trunk or passenger areas MUST be fully enclosed with a tight-fitting metal firewall riveted or welded in place.
C. Replacement fuel cells are recommended and MUST be located as far ahead in the trunk area as practical with a full tight-fitting firewall between trunk and passenger compartment.
D. Maximum fuel tank size 60 litres.
E. All fuel cells/tanks must be grounded and caps tethered.
F. Fuel lines, filters and pumps MUST be mounted, routed and shielded in as safe a manner as possible. Steel line MUST be used, with minimum length of high-pressure rubber hose for connections.
G. Electric fuel pumps, MUST shut off with the key ON, engine OFF as per factory wiring.
H. A securely mounted inertia shutoff switch required in power supply wire to pump located in easy reach of driver.
I. Any variations are subject to approval of the Competition Committee.
J. Fuel: Only pump fuel available at local consumer outlets with a maximum octane rating of 94 is allowed. No additives, oxygenation, aviation fuel or race fuel.
10. Fuel Marketing
A. Stock fuel injection for engine used.
B. NO re-flashed or re-chipped computers.
C. Stock carburetor for engine used or ANY 2-barrel single carburetor or two single barrel carburetors of ANY size. Fuel injected engines may backdate to carburetor(s) allowed.
Maximum 1” thick adapter plate allowed. E. NO grinding of stock manifold allowed.
F. Two throttle return springs required.
11. Air Intake
A. Air cleaner MUST be mounted in the engine compartment.
B. Cold air induction allowed.
A. MUST be stock for engine used, NO MSD boxes.
B. ONLY factory rev limiter is allowed, NO traction control.
C. May back-date to mechanical and/or vacuum controlled distributor. Replacement of ignition points with electronic trigger allowed.
A. Factory OEM exhaust header allowed.
B. Maximum exhaust system 2-1/2 OD pipe. Mufflers mandatory (maximum noise level Of 98 decibels).
C. Exhaust MUST exit behind and below the driver with the exhaust tip(s) pointed toward the ground and slightly toward the center of the car.
D. Cars that fail to meet the maximum noise level will be required to install a spec muffler prior the next event. Part number to be determined.
A. Stock or aftermarket radiator allowed, may be re-mounted, but MUST remain in its stock Location.
B. Coolant overflow container mandatory.
C. NO cooling rads of any kind allowed in drivers compartment.
D. Mechanical or electric fans allowed, MUST be plastic.
E. A rad support bar may be added between frame rails directly under the radiator.
F. NO ANTIFREEZE. Water wetter allowed.
A. Battery may be relocated within the engine compartment from front for impact reasons or remain in stock location. Other battery locations subject to discretion of Competition Committee.
B. The battery may be boxed into the engine side of the firewall, and completely sealed from driver’s compartment. The battery may be located between the front and rear axles, in the drivers compartment but must be sealed in a box.
C. Battery MUST be securely fastened with minimum 1/8 by 1.0 steel strap and 3/8 rod hold-downs.
D. Battery MUST have master kill switch. Switch MUST be centrally mounted for ease of access by driver and safety crew and must be clearly labelled ON/OFF. MUST kill motor and all power.
E. Starter MUST be operational at ALL times.
A. Transmission MUST be stock manual or automatic and MUST bolt to engine without the use of an adapter plate. External clutch safety shielding recommended.
A. Differential MUST be stock to vehicle, any gear ratio.
B. NO locked or welded differentials allowed; limited slip allowed ONLY if equipped from factory.
A. Safety hoops required front and rear, on rear-wheel-drive cars. Minimum 1-1/2 by 1/8 Steel bolted to floor pan with minimum Grade 5-3/8 bolts, 4 per hoop.
B. Driveshaft MUST be painted white.
A. Four wheel hydraulic brakes, MUST be functional at all times.
B. Brake pedal/bracket and mounting point MUST be in original factory location for the make and model of car.
C. Brake rotors MUST be original diameter to car; OEM drilled or slotted rotors allowed.
D. Brake calipers MUST be original family (example: Datsun to Datsun) and MUST bolt to original mount, may be updated to newer OEM style.
E. NO aftermarket calipers allowed, NO driver adjustable brake proportioning valve(s) allowed, NO antilock or ABS brake systems allowed.
A. Steel or Aluminum wheels are allowed, maximum wheel size 15 by 7.0. Multiple bolt pattern wheels allowed. Aftermarket racing wheels recommended.
B. NO wheel spacers or uni-lug wheels allowed.
C. Wheel nuts MUST engage the wheel mounting studs by AT LEAST the diameter of the stud.
Wheels MUST be torqued to factory specifications, oversize nuts (1.0) are recommended.
E. Wheels MUST be the same size and offset (backspace) front and rear on each side of the vehicle.
F. Wheel balancing weights not allowed.
A. ANY radial passenger car tire, 13,14 or 15 diameter minimum 60 series aspect ratio.
B. Minimum DOT tread wear rating (UTQG) minimum 380.
C. Directional and/or asymmetrical tread patterns allowed.
D. NO race tires, r-compound tires, ground grip, studded or re-cap tires allowed.
E. No altering of tires by softening agents, etc. Tires may be checked with a durometer.
F. All four tires on the car MUST be the same diameter and series aspect ratio. One increment difference allowed in section width from left to right side tires.
(example: left side 195/60/14 and right side 205/60/14).
G. Allowing 195/55/15
H. Tires will be measured with an 8 3/4 tire template.
A. All ballast MUST be securely fastened; minimum of two, bolts for every 12” of ballast.
B. Ballast MUST be painted white with the car number on it.
C. All ballast must be mounted no lower than bottom side of frame rails. No ballast behind the rear wheels lower than the fuel cell.
STREET STOCK CAR SERIES RULES
RUN YOUR JUNK RULES
- 1/4 tons, mini vans, full size cars 1/4-ton SUV or smaller, No V8's, 4x4 drive shaft to be removed.
-no engines bigger than 3.8 litres displacement
-all interior pieces removed except driver's seat and dash board
-all doors/trunks/hood to be chained shut with maximum of 2 chains, can also be welded shut with minimum 2" long stitch weld.
-no solid weld on trunk or doors
-all plastic trim/lights removed including plastic grill. -all plastic interior and burnables must be removed.
-all glass removed with exception of windshield (windshield can be removed but must have expanded metal welded in place of windshield
-driver's window must have window net/expanded metal welded/ and or snow fence securely fasten to protect driver, if there is a sunroof it must be sheeted off with 6" spacing on rivets.
-must have grader blade or minimum 4” c channel bolted to driver's door with the opening of the channel facing the door. Must extended 4"past door to front fender as well as rear quarter or 4" past back door for four door cars. Must be mounted open and out and ends cut on a 45-degree angle. No grader blades allowed on passenger side.
-Door bar must be secured to the door with minimum 4 5/8” bolts with 4 3/16" plate washers on the inside of vehicle
-driver's door needs a cushion or foam on inside to protect driver
-driver's door must have plastic snow fence , netting, or expandable metal secured safely to door to protect driver.
-all air bags to be removed
-steering wheels to be padded and taped to prevent damage to hands
-driver's door must be painted white with a X on it
-cars only participating in run your junk must have minimum horizontal bar 2” minimum on pillar behind drivers seat from one side of car to the other with plate welded to each end with 4 1/2” minimum bolts bolting it to the vehicle, they will also need a 2” minimum vertical bar in middle of car from floor to roof with plates welded on each end secured with 4 1/2” minimum bolts on each end this bar must be welded to the horizontal bar as well
-Must have min 3" round bar or square tubing with 3/16" minimum thick plate on both ends of bar 8"x8" secured with min 4 1/2" bolts, cross bar welded to uprights from door bar to door bar secured with same double plate, set up as upright.
-cars that are participating in run your junk as well as roll over comp must have a rear hoop behind driver from floor to roof and from drivers side to passenger side. Must be no smaller the 1 3/4 .95 wall pipe and must have two rear kickers as well as two front kickers all points 360 welded and all points of contact to vehicle must be welded to 1/8” plate and minimum 4 1/2” bolts to vehicle on each plate for any questions contact head of tech he will gladly explain the construction of the roll bar for this .
⁃vehicles doing the roll over comp must remove windshields and run expanded metal in its place
-batteries must be securely mounted inside vehicle passanger foot wheel or behind drivers seat in battery box.
-All cars must have a master kill switch mounted inside the vehicle where safety crews can easily access
-4 or 5 point harness recommended but can also run factory seat belt as long as it’s not frayed or torn
-all vehicles have to remove antifreeze and must be running straight water
-all vehicles must have a 5 pound fire extinguisher mounted securely in the vehicle within arms reach of driver ( fire extinguishers will be removed before roll over comp as they can be a projectile )
-all cars must have a car number clearly visible on vehicle
-Chain thickness for securing must be minimum 3/8"
-1/4 tank of gas ONLY incase of rollover or puncture
-Reminder Bring Extra Tires