2008
Winged sprint car rules Revised
rules for the WILROC LITES class Winged
sprint car rules
2008
2008 EXECUTIVE
Wilroc sprintcar association 2008
Rules The following rules are designed to establish certain minimum accepted requirements for, and the orderly management of, WILROC sanctioned events. They are intended to be followed by all racing teams (including owners, drivers and pit crew members) participating in WILROC racing events, but WILROC reserves the right to interpret, change or modify the rules at any time. WILROC officials (including board members, committee members and race day officials) are empowered to make the necessary changes, modifications and interpretations of the rules at their sole discretion and their decision is final and cannot be challenged, except as outlined in the rules below. All participants in WILROC sanctioned events understand that racing is a dangerous sport. By participating, each person agrees to follow the WILROC rules, accepts the risk inherent in sprint car racing, accepts that the rules in no way guarantee the safety of any participant and agrees to release WILROC from any liability for injuries or damages.. Racing teams are solely responsible for the design, construction, fabrication and maintenance of their sprint cars and related equipment, as well as safety equipment (including seat belts, head and neck restraints, arm restraints, safety netting, helmets, racing suits and shoes) used in the sprint car or worn by the driver and pit crew members. WILROC rules must be followed, but it is the responsibility of all participants to ensure that their sprint car, driver and crew are safe. WILROC is not responsible for any damage or injury to equipment or participants at any WILROC sanctioned event. THERE IS NO EXPRESS OR IMPLIED WARRANTY OF SAFETY FROM THE WILROC RULES, COMPLIANCE THEREWITH, OR PARTICIPATION IN WILROC SANCTIONED EVENTS. BY PARTICIPATING, EACH PERSON ACCEPTS ALL RISKS ATTACHED TO SUCH PARTICIPATION AND RELEASES THE WILROC SPRINTCAR ASSOCIATION, ITS OFFICERS, DIRECTORS, OFFICIALS, EMPLOYEES AND AGENTS FROM ANY AND ALL LIABILITY, AND INDEMNIFIES THEM JOINTLY AND SEVERALLY FROM ANY LEGAL ACTION ARISING FROM ANY EQUIPMENT DAMAGE OR INJURY SUFFERED BY THE PARTICIPANT AT ANY WILROC SANCTIONED EVENT. VOTING: Only one vote for representative of a car (owner or driver). Multiple car teams have only one vote. Car must have competed under the WILROC banner to have voting eligibility Page 2
WILROC Rules shall apply at all WILROC events.
Track officials and/or WILROC officials will be responsible for enforcement at all WILROC sanctioned events. At the discretion of WILROC officials in charge, any competitor may be disqualified for rule violations, hazardous equipment or unsafe actions. All race cars at a WILROC sanctioned event are subject to inspection at any time.
Approval of a race car, at a WILROC sanctioned event, by WILROC official(s) shall mean only that the car is approved for participation in a competitive event and shall not be construed in any way to mean that the inspected race car is guaranteed mechanically sound. The WILROC official(s) shall not be liable, nor shall WILROC, for any mechanical failure, and not for any losses or injuries resulting from same. Tech and safety inspections may occur at any time and are solely at the discretion of the Tech and Safety Committee members. Absolutely NO alcoholic beverages will be consumed by drivers or their pit crew members prior to or while competing in any WILROC sanctioned event. Use, sale or distribution of illegal drugs at ANY TIME shall be cause for immediate, indefinite suspension.
All drivers must be at least 16 years of age (proof of age required). Drivers under 18 years of age must have a signed and notarized Parental Consent Form by parent or legal guardian and said document must be in the hands of the WILROC officials prior to participation in any event. (NOTE: The Sanctioning body may require a participant to undergo a physical examination before being able to compete in a WILROC sanctioned event). A ROOKIE is a driver who has not driven an Open Wheel race car previously. Rookie drivers will be examined by WILROC officials and must receive their approval prior to being able to compete. Page 3 SAFETY Roll cages are mandatory on all cars and must be constructed of seamless steel tubing with a Minimum O.D. of 1¼” and a minimum wall thickness of .095. This structure must be attached and secured to a strong component of the chassis structure and adequately braced fore and aft to secure it in an upright position. All roll cages must pass technical inspection. Roll bar cage must be a minimum of 2” higher than the driver’s helmet. The roll cage tubing on all four sides of the driver’s head must be padded with an approved energy absorbing material. Driveline hoop and bar at bottom rear of seat required. Window net mandatory on sides of roll cage. Safety inspector reserves the right to drill a 1/8” inspection hole.
Fuel cells must be securely mounted behind driver and well protected. Bottom of fuel cell must be above frame rail. Fuel cells must by USAC approved type. Sprint car fuel cell must be centered in rear of chassis. Main fuel line must have ¼ turn shutoff valve between tank and pump. Gas caps must be approved racing type. No plastic fuel lines; must be reinforced pressure hose. Tank must be vented in a manner that it will not leak if upset. Fuel shutoff must be clearly marked as to “ON” and “OFF” positions. It is recommended that the valve be accessible from outside the car. No plastic or glass fuel filters. No spring type clamps on fuel lines. All electric fuel pumps must use oil pressure activated switch. All drivers must wear fire resistant head sock, underwear, socks, gloves and uniform able to fit snugly around the neck, wrist and ankles. It is required that the uniform meet SFI 3.2/5 foundation specifications. Footwear must be fire resistant racing apparel.
Helmets must be Snell foundation SA2000 or greater approved to cover the base of the skull. Must be approved by the safety officials. Face shields required. Helmets must be replaced following any severe contact. A head and neck restraint system is mandatory. Approved nylon lap, shoulder and anti-sub belts are mandatory with common quick release and belts securely mounted to frame. Minimum width of 3” lap and shoulder belts required. All belts must have date of manufacture and not exceed 3 years of age. Stress point must be shoulder height. No heating, bending or welding of safety belt “D” rings or mounting hardware. Mounting bolts must be Grade 8 or better. Padded knee guards required. All seat belts and associated equipment subject to Safety Committee approval. Arm restraints required and must be racing approved.
A full firewall is required between the engine and driver’s compartment. It must be fully sealed to protect the driver from water, flame or metal fragments. Hoods are required and must cover radiator, cap and engine compartment. Must be on car when it is on the racetrack, in competition. Page 4
Belly pans or floorboards must extend from frame rail to frame rail and from firewall to under seat (or as approved by safety official). All oil or grease leaks are to be cleaned up – including floor at all times. Dirty or greasy driver’s compartments or improper seals will lead to car being “parked”.
All cars must have foot operated hydraulic brakes in good working order. All cars must be equipped with front and rear bumpers. Must extend a minimum of 6” ahead of the front tires and 6” behind the rear tires. Bumpers must not be more than 4” wider than the frame. Torque arms must have safety cable on front pick up point.
All cars must be equipped with side nerf bars which must extend to the normal width of the tire. No part shall extend beyond the width of the car. Nerf bars must also extend to the fullest length possible between the front and rear tires. Ignition shutoff must be of a toggle type and mounted within easy reach of the driver. All switches to be clearly and permanently labelled “ON” and “OFF”.
Batteries must be securely mounted. Conventional batteries must be retained in case of a crash or rollover. On sealed batteries, the vent hose must be routed to the outside of the car. Batteries must be covered to prevent spillage and have a clearly identified master disconnect switch. All cars must have a radiator catch can. An overflow tube may run into the header system a minimum of 3 feet from the final exhaust outlet.
Mandatory that all teams have a fully operable ABC type fire extinguisher (min. 5# capacity) plus 4 litres of water in their pits – visible at all times. No glass (except instruments) allowed. No rear view mirrors allowed.
Wrap around metal high back bucket seat with built in headrest of rigid back construction. Containment seat recommended for 2007, will be mandatory for 2008. Head rest minimum 5”X7”. Seat to be securely fastened with a minimum of three grade 8 or better 3/8 “ bolts and fender washers. Seat back to extend to top of driver’s shoulders. (Safety Committee Approved). No car to have pitman arm or drag link inside of roll cage.
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No coolers can be attached to roll cage. No riding on race cars or trailers permitted.
Recommended: Fuel cans labelled and coloured RED / water cans labelled and coloured BLUE. WILROC reserves the right to withhold any car from competition if it does no conform to safety regulations and official inspections.
SPECIFIC RULES CHASSIS Must be an open cockpit open wheel sprint car or roadster design.
Wheelbase will be 85” minimum and 102” maximum. The maximum chassis offset allowed, for both front and rear wheels, is four (4) inches (8inches overall) measured from the centerline of the chassis to the inner wheel bead seat. The outside bead seat cannot exceed 43 inches from the centerline of the rear axle center section. The outside bead seat of the left rear wheel cannot be less than 31 inches from the centerline of the rear axle center section. The outside of the right front wheel cannot be more than 43 inches from the centerline of the chassis. Overall width will be limited to a maximum of 78”. Distance measured from outsides of opposite tires on a perpendicular plane. NOTE: This wheel-offset rule does not apply to roadsters, however roadsters must meet the 78-inch width rule. No portion of car to extend outside tires. NOTE: 78” maximum includes tire sidewalls. No independent suspension allowed front or rear. Torsion bars / coil overs/ weight jacks and spring perches allowed.
Full floater stubs and axles allowed on passenger car type rear ends. Quick change type centre sections allowed. Open tube rear ends allowed. No four-wheel drive, front wheel drive, rear-engine or “Oswego” type offset cars. Page 6
No driver adjustable or external adjustable shocks or gas shocks, weight jackers, traction control systems or wing sliders allowed. Wings must not extend beyond the track of the car and cannot be moveable while the car is in motion.
Cars must have complete body panels and be of professional appearance (Tech approved). Cars must have an under pan under the cockpit area and vertical panels to effectively seal the cockpit area from the engine compartment.
No bodywork or airfoils may extend over any portion of the front or rear tires, measured vertically from the rear tires outside edge in a straight line forward. Bodies must not exceed more than 2” outside frame rails and floor must extend to it. Bodies must be sprint car or super modified type and be securely fastened. Bodies may extend a maximum of 36” forward of the front axle centerline. No titanium parts anywhere (exception: wheel bolts).
No carbon fibre parts anywhere (exception: wing leaders and wheels). Minimum weight: 1700 pounds (including driver). Cars may be weighed at any time during race meet. Any cars can be weighed after Main Event (No Fuel added).
Left side weight maximum – 55% Engine height minimum-7” center of crankshaft to bottom of frame rails.
Engine to be mounted upright in chassis and be located within the frame rails. All weight ballast to be painted white and indicate car #. Must be securely bolted between the frame rails (Tech approved).
Driveshaft and torque arm: All revolving parts inside the cockpit must be shielded by a suitable guard (fully enclosed – Tech approved). Buckley joint must be shielded in such a manner to protect the driver from errant parts and fluids. REMINDER: IF IT’S NOT INDENTIFIED IN THE RULES, IT MAY BE CLASSED AS ILLEGAL. If in doubt, check with the Tech. Committee FIRST. Page 7 BRAKES All cars must be equipped with a hydraulic foot operated braking system capable of stopping the race car in a safe manner.
If at any time during competition it becomes evident that a car is without brakes, the necessary repairs must be must be completed before the car can continue. Master cylinders not fixed to the frame must have flexible lines. Copper tubing is not allowed anywhere in the braking system.
ENGINE No titanium allowed. No use of ceramic or composite internal engine components allowed, Exception – Carb adapter, valve covers, air cleaner, gaskets, bearings, piston rings and spark plugs. No antifreeze or synthetic oils permitted (as track rules).
Engine must be naturally aspirated (no turbo, blower, etc). Engines can be teched and sealed by the tech committee prior to the first race. Any engines not sealed will be teched prior to their first race. Cost of gaskets etc. is the owner’s responsibility. Arrange with Tech Committee to have engine inspected-they will advise their requirements and schedules.
Any GM, Ford, or Dodge cast iron block. After market blocks allowed but all internal specifications of cylinder block must match OEM configuration. I.e. Chev – Chev, Ford – Ford. Steel caps and splayed caps allowed. 1” inspection plug required in oil pan or be prepared to pull pan when requested. Cubic in max 360 plus 1%. Any rod allowed (except titanium).
Any standard configuration cast iron cylinder head allowed (No raised runner heads). No aluminium heads allowed. Screw in studs and guide plates permitted. Lifters – diameter must match original make of block (eg. Chev to Chev.) Valve angle must remain stock, no rollover means just that, and would include angle milling of cylinder heads, which is not permitted. Page 8
Any fuel injection with a maximum bore 2 3/16”. If larger than 2 3/16” you must use 8 injector stack restrictors, 1 per cylinder with a Minimum of 3 inches of round, continuous restriction at a maximum of 2 3/16”. Restrictors must be mounted above butterflies, can be anywhere in stack, no relief holes allowed in any injector. Maximum 8 nozzles and must be in intake manifold, no down nozzles, nozzles must be mounted on intake portion of manifold only. No timed fuel injection allowed. Mechanical fuel injection only.
Any carburetor combination permitted. Unaltered Felpro gaskets required. (Chev #1206 Ford #1262, Dodge #1213) or smaller as approved by WILROC tech.
No overhead cams. Any flat tapped camshaft allowed. No roller cam or roller lifters. Stock lifter diameter and configuration, make for make. Cast or forged steel crankshaft permitted (balancing allowed).
Any ignition system allowed. No electronic traction control devices permitted. No driver adjustable ignition, except kill switch.
EXHAUST No 180 degree headers, no merge collectors, or Tri Y headers allowed.
Mufflers required to meet 95 DBA at 100 feet. Must meet local track requirements as directed. FUEL Alcohol, methanol or gasoline permitted. No performance enhancing additives allowed.
RADIOS No transmitting devices in car, WILROC approved radios/transponders only. No electronic monitoring computer devices capable of storing or transmitting information allowed (except tachometer).
Page 9 STEERING Steering mechanism must be engineered and assembled in accordance with sound engineering principles.
All highly stressed steering components must be made from SAE 4130 steel or an alloy, specific by the manufacturer, of the component as equivalent in necessary strength for its intended use. Rack and pinion steering permitted.
Steering wheel to be a metal “quick release” design and have a padded centre. THROTTLE Throttle toe straps are mandatory. In addition, a minimum of 3 return springs must be connected to different locations on the throttle system. One spring must be on the butterfly shaft.
If the throttle actuating mechanism is the cable type, the cables must be encased to ensure push-pull action. The throttle pedal must have a wide open stop.
TIRES All cars limited to four tires. No dual wheels. Only one 18” maximum width tire permitted (RR)-balance to total 36” maximum.
Tires currently to be run are Hoosier M48 (right rear); Hoosier M30 (right front); Hoosier M30 (left rear); and Hoosier M10 (left front). All compound numbers must remain on tires, otherwise may be deemed illegal
Maximum of one right rear tire (NEW) per night (PERIOD). The tire used in qualifying must be used in all races for the balance of the night. Should that tire become damaged (ie. Cut or Torn, NOT WORN), a used tire can be used after the tech committee approves it. Used tires must meet the max. tread depth of 5mm.
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WHEELS Steel, aluminium (alloy) and carbon fibre allowed. Bead locks permitted.
Wheel weights must be stick on only and be securely attached. Recommended: Any car using a lug nut type right front hub must use all six lug nuts. A 360 degree pressure plate of either 1/8” steel or 3/16” aluminum must be used, between the lug nuts and the wheel face.
WINGS Maximum top wing area 25 square feet.
Maximum nose wing area 6 square feet. Top wings cannot extend outside of the rear tire/wheel assemblies.
Top wing sideboard height will be a maximum of 30” vertical height and a maximum of 72” length. No wing lip (wickerbill) to exceed 1” in height.
All wing assemblies must be securely attached to the chassis of the car. Single stage wings only
No wings to be moveable while the car is in motion (no sliders). Top wing numbers on sideboards are mandatory and must measure 16” high minimum. The numbers must be of a contrasting colour and be highly visible.
If series sponsors are obtained, WILROC officials will designate areas on wings and/or body panels for sponsor logo/advertising signage to be displayed. Contingency awards may be withheld if signage not displayed. Page 11
RUNNING RULES WILROC OFFICIALS WILL DIRECT THE RACE PROGRAM. THE RACE DIRECTOR HAS SOLE DISCRETION FOR THE RACE LINEUPS. THE RACE DIRECTOR CANNOT BE APPROACHED AT ANYTIME DURING A RACE UNTIL IT IS COMPLETED. Officials may require rookie drivers to start at the back of the pack.
Races cannot end on a YELLOW. We must have two GREEN laps to end the race. We DO NOT race to the yellow. When the yellow is displayed, slow down in a safe manner and line up single file (NO PASSING).
If you require a push truck, you maybe required to go to the back of the pack (whether you caused the yellow or not). On a red flag, all cars stop in a safe manner, then line up in an area designated by the race director. Then ONE crew member may attend to his car, NO air tanks, NO tools other than a flashlight. NO quads allowed on track.
Cars requiring any repair must report to pit area. Qualifying must occur at your designated slot. Failure to do so will result in qualifying last for 1 timed lap only.
The driver who qualifies the car last must drive for the balance of the event to be eligible for points. If a driver is unavailable to time in the car, he can make arrangements to have someone else time in his car and race it until he arrives at the track. Upon his arrival, he must inform the Pit Boss. It is also mandatory that the timing/announcers booth be notified prior to the event. Points will be awarded to the car number only. Numbers may not be transferred to another car for a point’s advantage. Points will be awarded as per the published schedule. Any amendments (eg. Double points races) will be preceded by a WILROC notification prior to the event. There will be no points awarded on cancelled events.
The #1 will be reserved for the car of the previous year’s Points Champion. Any car may be designated for inspections at the discretion of the WILROC officials. Failure to comply may result in loss of total points for the day or any other penalty deemed appropriate by the WILROC officials.
Untimed cars must start at the rear of the field in heats and main events. Page 12
In order to receive points for a race, the car must take the first green flag of the race. If a car is found illegal, the car may lose all points for the year and will forfeit all monies earned on the night of the infraction. Severity of the penalties will be determined by the WILROC officials.
Visiting cars will be at the discretion of the WILROC officials if they will be able to participate in the event.
SPORTSMANSHIP Sprint car racing is a very emotional sport. As such, good sportsmanship is the key element of any competitive racing program. This must include respect for all participants-drivers, owners, pit crews, and officials. For our part we will make every effort to be consistent with our rules regardless of whom or what is involved. We will treat all participants with respect and expect similar treatment in return. A racer’s pit area is his castle-therefore please stay out of other racer’s pit areas, especially after an incident when you have been involved with that racer. Drivers remember that you are responsible for the actions of your crew. Any offending parties will be fined appropriately and disciplinary actions will be initiated as deemed necessary.
PENALTIES Verbal Abuse to any WILROC official $100.00. Assault to any WILROC official or Track Owner/Promoter automatic suspension. Fighting results in a 1-year suspension. Rowdyism in pit area $100.00 Speeding in pits (after warning) cars and quads first offence $50.00 second offence $100.00. At anytime during a race no crew or driver will be allowed to approach lap recorders. Fine $50.00 All fines will be withheld from driver’s payout. Should the fines exceed the payout, they must be paid in full before offender will be permitted to participate in a WILROC event.
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PROTESTS 1. All protests must be submitted in writing to a WILROC Official within 30 minutes after the end of the last WILROC race and will only be accepted from a registered driver. Any engine protest must accompany $300.00 cash. If engine protest is found legal the monies will be given to owner/driver of protested car. All other protests must be accompanied by $100.00 cash.
If a protest is successful the protester will be refunded his money.
APPEAL PROCEDURE A participant desiring an appeal hearing of action taken by WILROC
must submit a written request to the Secretary of WILROC for an
appeal hearing accompanied by written reasons why an appeal should
be heard, no later than five days after the date of suspension or
fine. An appeal panel will be struck and a decision reached within 14 days of the date of the appeal.
NOTE: ALL DRIVERS MUST HAVE A CURRENT RULE BOOK IN THEIR POSSESSION AT EVERY RACE EVENT.
WILROC LITE SPRINTCAR ASSOCIATION 2008 Rules Disclaimer and Release The following rules are designed to establish certain minimum accepted requirements for, and the orderly management of, WILROC sanctioned events. They are intended to be followed by all racing teams (including owners, drivers and pit crew members) participating in WILROC racing events, but WILROC reserves the right to interpret, change or modify the rules at any time. WILROC officials (including board members, committee members and race day officials) are empowered to make the necessary changes, modifications and interpretations of the rules at their sole discretion and their decision is final and cannot be challenged, except as outlined in the rules below. All participants in WILROC sanctioned events understand that racing is a dangerous sport. By participating, each person agrees to follow the WILROC rules, accepts the risk inherent in sprint car racing, accepts that the rules in no way guarantee the safety of any participant and agrees to release WILROC from any liability for injuries or damages.. Racing teams are solely responsible for the design, construction, fabrication and maintenance of their sprint cars and related equipment, as well as safety equipment (including seat belts, head and neck restraints, arm restraints, safety netting, helmets, racing suits and shoes) used in the sprint car or worn by the driver and pit crew members. WILROC rules must be followed, but it is the responsibility of all participants to ensure that their sprint car, driver and crew are safe. WILROC is not responsible for any damage or injury to equipment or participants at any WILROC sanctioned event. THERE IS NO EXPRESS OR IMPLIED WARRANTY OF SAFETY FROM THE WILROC RULES, COMPLIANCE THEREWITH, OR PARTICIPATION IN WILROC SANCTIONED EVENTS. BY PARTICIPATING, EACH PERSON ACCEPTS ALL RISKS ATTACHED TO SUCH PARTICIPATION AND RELEASES THE WILROC SPRINTCAR ASSOCIATION, ITS OFFICERS, DIRECTORS, OFFICIALS, EMPLOYEES AND AGENTS FROM ANY AND ALL LIABILITY, AND INDEMNIFIES THEM JOINTLY AND SEVERALLY FROM ANY LEGAL ACTION ARISING FROM ANY EQUIPMENT DAMAGE OR INJURY SUFFERED BY THE PARTICIPANT AT ANY WILROC SANCTIONED EVENT. VOTING: Only one vote for representative of a car (owner or driver). Multiple car teams have only one vote. Car must have competed under the WILROC banner to have voting eligibility NOTE: The following rules are subject to change in the fairness of competition. Page 2 WILROC Rules shall apply at all WILROC events. Track officials and/or WILROC officials will be responsible for enforcement at all WILROC sanctioned events. At the discretion of WILROC officials in charge, any competitor may be disqualified for rule violations, hazardous equipment or unsafe actions. All race cars at a WILROC sanctioned event are subject to inspection at any time.
Approval of a race car, at a WILROC sanctioned event, by WILROC official(s) shall mean only that the car is approved for participation in a competitive event and shall not be construed in any way to mean that the inspected race car is guaranteed mechanically sound. The WILROC official(s) shall not be liable, nor shall WILROC, for any mechanical failure, and not for any losses or injuries resulting from same. Tech and safety inspections may occur at any time and are solely at the discretion of the Tech and Safety Committee members. Absolutely NO alcoholic beverages will be consumed by drivers or their pit crew members prior to or while competing in any WILROC sanctioned event. Use, sale or distribution of illegal drugs at ANY TIME shall be cause for immediate, indefinite suspension.
All drivers must be at least 16 years of age (proof of age required). Drivers under 18 years of age must have a signed and notarized Parental Consent Form by parent or legal guardian and said document must be in the hands of the WILROC officials prior to participation in any event. (NOTE: The Sanctioning body may require a participant to undergo a physical examination before being able to compete in a WILROC sanctioned event). A ROOKIE is a driver who has not driven an Open Wheel race car previously. Rookie drivers will be examined by WILROC officials and must receive their approval prior to being able to compete. Page 3 SAFETY Roll cages are mandatory on all cars and must be constructed of seamless steel tubing with a Minimum O.D. of 1¼” and a minimum wall thickness of .095. This structure must be attached and secured to a strong component of the chassis structure and adequately braced fore and aft to secure it in an upright position. All roll cages must pass technical inspection. Roll bar cage must be a minimum of 2” higher than the driver’s helmet. The roll cage tubing on all four sides of the driver’s head must be padded with an approved energy absorbing material. Driveline hoop and bar at bottom rear of seat required. Safety inspector reserves the right to drill a 1/8” inspection hole.
Fuel cells must be securely mounted behind driver and well protected. Bottom of fuel cell must be above frame rail. Fuel cells must be USAC approved type. Sprint car fuel cell must be centered in rear of chassis. Plastic fuel tank may be used and must be enclosed in steel, 20 gauge steel minimum, and must be covered by a Sprint Car type shell. Gas caps must be approved racing type. No plastic fuel lines; must be reinforced pressure hose. Tank must be vented in a manner that it will not leak if upset. No plastic or glass fuel filters. No spring type clamps on fuel lines. All drivers must wear fire resistant head sock, underwear, socks, gloves and uniform able to fit snugly around the neck, wrist and ankles. It is required that the uniform meet SFI 3.2/5 foundation specifications. Footwear must be fire resistant racing apparel.
Helmets must be Snell foundation SA2000 or greater approved to cover the base of the skull. Must be approved by the safety officials. Face shields required. Helmets must be replaced following any severe contact. A head and neck restraint system is mandatory. Approved nylon lap, shoulder and anti-sub belts are mandatory with common quick release and belts securely mounted to frame. Minimum width of 3” lap and shoulder belts required. All belts must have date of manufacture and not exceed 3 years of age. Stress point must be shoulder height. No heating, bending or welding of safety belt “D” rings or mounting hardware. Mounting bolts must be Grade 8 or better. Padded knee guards required. All seat belts and associated equipment subject to Safety Committee approval. Arm restraints required and must be racing approved.
A full firewall is required between the engine and driver’s compartment. It must be fully sealed to protect the driver from water, flame or metal fragments. Hoods are required and must cover radiator, cap and engine compartment. Must be on car when it is on the racetrack, in competition. Page 4
Belly pans or floorboards must extend from frame rail to frame rail and from firewall to under seat (or as approved by safety official). All oil or grease leaks are to be cleaned up – including floor at all times. Dirty or greasy driver’s compartments or improper seals will lead to car being “parked”.
All cars must have foot operated hydraulic brakes in good working order. All cars must be equipped with front and rear bumpers. Must extend a minimum of 6” ahead of the front tires and 6” behind the rear tires. Bumpers must not be more than 4” wider than the frame. Torque arms must have safety cable on front pick up point.
All cars must be equipped with side nerf bars which must extend to the normal width of the tire. No part shall extend beyond the width of the car. Nerf bars must also extend to the fullest length possible between the front and rear tires. Ignition shutoff must be of a toggle type and mounted within easy reach of the driver. All switches to be clearly and permanently labelled “ON” and “OFF”.
Batteries must be securely mounted. Conventional batteries must be retained in case of a crash or rollover. On sealed batteries, the vent hose must be routed to the outside of the car. Batteries must be covered to prevent spillage and have a clearly identified master disconnect switch. All cars must have a radiator catch can. An overflow tube may run into the header system a minimum of 3 feet from the final exhaust outlet.
Mandatory that all teams have a fully operable ABC type fire extinguisher (min. 5# capacity) plus 4 litres of water in their pits – visible at all times. No glass (except instruments) allowed. No rear view mirrors allowed.
Wrap around metal high back bucket seat with built in headrest of rigid back construction. Containment seat is mandatory. Head rest minimum 5”X7”. Seat to be securely fastened with a minimum of three grade 8 or better 3/8 “ bolts and fender washers. Seat back to extend to top of driver’s shoulders. (Safety Committee Approved). No car to have pitman arm or drag link inside of roll cage.
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No coolers can be attached to roll cage. No riding on race cars or trailers permitted.
Recommended: Fuel cans labelled and coloured RED / water cans labelled and coloured BLUE. WILROC reserves the right to withhold any car from competition if it does no conform to safety regulations and official inspections.
SPECIFIC RULES CHASSIS Must be an open cockpit open wheel sprint car or roadster design.
Wheelbase will be 85” minimum and 102” maximum. The maximum chassis offset allowed, for both front and rear wheels, is four (4) inches (8inches overall) measured from the centerline of the chassis to the inner wheel bead seat. The outside bead seat cannot exceed 43 inches from the centerline of the rear axle center section. The outside bead seat of the left rear wheel cannot be less than 31 inches from the centerline of the rear axle center section. The outside of the right front wheel cannot be more than 43 inches from the centerline of the chassis. Overall width will be limited to a maximum of 78”. Distance measured from outsides of opposite tires on a perpendicular plane. NOTE: This wheel-offset rule does not apply to roadsters, however roadsters must meet the 78-inch width rule. No portion of car to extend outside tires. NOTE: 78” maximum includes tire sidewalls. No independent suspension allowed front or rear. Torsion bars / coil overs/ spring perches allowed.
Full floater stubs and axles allowed on passenger car type rear ends. Quick change type centre sections allowed. Open tube rear ends allowed. No four-wheel drive, front wheel drive, rear-engine or “Oswego” type offset cars.
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No driver adjustable or external adjustable shocks or gas shocks, weight jackers, traction control systems allowed.
Cars must have complete body panels and be of professional appearance (Tech approved). Cars must have an under pan under the cockpit area and vertical panels to effectively seal the cockpit area from the engine compartment.
No bodywork may extend over any portion of the front or rear tires, measured vertically from the rear tires outside edge in a straight line forward. Bodies must not exceed more than 2” outside frame rails and floor must extend to it. Bodies must be sprint car or roadster type and be securely fastened. Bodies may extend a maximum of 36” forward of the front axle centerline. No titanium parts anywhere.
No carbon fibre parts anywhere. Minimum weight: 1700 pounds (including driver). Cars may be weighed at any time during race meet. Any cars can be weighed after Main Event (No Fuel added).
Engine height minimum-7” center of crankshaft to bottom of frame rails. Engine to be mounted upright in chassis and be located within the frame rails.
All weight ballast to be painted white and indicate car #. Must be securely bolted between the frame rails (Tech approved). Driveshaft and torque arm: All revolving parts inside the cockpit must be shielded by a suitable guard (fully enclosed – Tech approved). Buckley joint must be shielded in such a manner to protect the driver from errant parts and fluids.
REMINDER: IF IT’S NOT INDENTIFIED IN THE RULES, IT MAY BE CLASSED AS ILLEGAL. If in doubt, check with the Tech. Committee FIRST.
Page 7 BRAKES All cars must be equipped with a hydraulic foot operated braking system capable of stopping the race car in a safe manner.
If at any time during competition it becomes evident that a car is without brakes, the necessary repairs must be must be completed before the car can continue. Master cylinders not fixed to the frame must have flexible lines. Copper tubing is not allowed anywhere in the braking system.
ENGINES 1. Maximum engine size will be 360 cubic inches plus 1%. 2. Flat top pistons may run double bump or small chamber heads. 3. Domed pistons must run big chamber heads with a minimum of 76 c.c. 4. Engine must have stock or stock replacement crank and rod length for make and model of block. NO STROKERS. Aftermarket rod bolts are allowed. Stock OEM after market rods are allowed. NO LIGHTWEIGHT AFTERMARKET CRANK OR RODS ALLOWED. Balancing of rotating assemblies allowed. NO REMOVAL OF SERIAL NUMBERS OR MANUFACTURES EMBLEMS. 5. Cylinder deck may be machined for clean up and truing only. NO ZERO DECKING ALLOWED. 6. Cylinder heads must be bone stock cast iron O.E.M. production heads. There must be NO chisel, grinding, sandblasting or shot peening marks in the cylinder heads anywhere. This means NO de-burring, porting, polishing, cast slag removal, matching of ports or anything else that alters the head from factory rough stock. Machining for screw in studs and guide plates are allowed. Opening of push rod slots in cylinder heads is allowed. Steam relief holes may be drilled to a larger size. Cylinder heads may be surfaced slightly for truing but must maintain the manufacturer's minimum c.c. combustion chamber volume for the head being used. NO angle milling is allowed. NO Vortec G.M. heads allowed. World Product heads may be used Serial #043600 or 043610 Chev or #053030 Ford. No World Product Head available for Chrysler. 7. Valves and seats may be reground and may only have three angles, with a facing cut of 45 degrees. No back cut allowed on valves.. New valve seats are allowed. Bottom cut into head measured from the floor of chamber; to be a maximum of 7/16.
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8. No titanium or hollow stem valves. 9. Maximum valve sizes are as follows:
G.M.
1.94 intake 1.60 exhaust 10. Stock diameter replacement valve springs and retainers only.
Hardened keepers allowed.
12. Rocker arms are to be stock replacements only. Rockers must be in stock ratio only. Roller tip rockers or rockers with slots lengthened will be allowed. NO roller rockers or stud girdles. 13. NO belt or gear drives allowed. 14. Oil pans may be modified. Wet sump only. 15. Stock 2 barrel carburetor only of maximum 1 11/16 throttle bore on a stock 2 barrel cast iron manifold only is allowed. NO carburetor adapters or spacer plates allowed. A carburetor air cleaner or suitable flame arrester is required. Fuel jet size swaps and Holley jets allowed. Removal of all choke parts allowed. No Holley Carburetors. A go no go gauge will be used during tech. Mechanical throttle linkage only 16. No 180 degree headers, no merge collectors, or Tri Y headers allowed. Mufflers required to meet 95 DBA at 100 feet. Must meet local track requirements as directed. Being over the sound limit may result in a penalty, fine or disqualification. 17. NO porting, polishing or grinding of intake allowed. 18. HEI Distributors or Mag allowed. No MSD Mag or crank triggers or traction controlled devises allowed. 19. Bow Tie (G.M.), S.V.O. (Ford), Mopar (Chrysler) etc. performance racing parts are not allowed.
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FUEL Gasoline only. No performance enhancing additives allowed.
RADIOS No transmitting devices in car, WILROC approved radios/transponders only. No electronic monitoring computer devices capable of storing or transmitting information allowed (except tachometer).
STEERING Steering mechanism must be engineered and assembled in accordance with sound engineering principles.
All highly stressed steering components must be made from SAE 4130 steel or an alloy, specific by the manufacturer, of the component as equivalent in necessary strength for its intended use. Rack and pinion steering permitted.
Steering wheel to be a metal “quick release” design.
THROTTLE Throttle toe straps are mandatory. In addition, a minimum of 3 return springs must be connected to different locations on the throttle system. Two springs must be on the butterfly shaft.
The throttle pedal must have a wide open stop.
Page 10 TIRES
All cars limited to four tires. No dual wheels. Only one 18” maximum width tire permitted (RR)-balance to total 36” maximum.
Tires currently to be run are Hoosier M48 (right rear); Hoosier M30 (right front); Hoosier M30 (left rear); and Hoosier M10 (left front). All compound numbers must remain on tires, otherwise may be deemed illegal
Maximum of one right rear tire per night (PERIOD). The tire used in qualifying must be used in all races for the balance of the night. Should that tire become damaged (ie. Cut or Torn, Worn), a used tire can be used after the tech committee approves it. Used tires must meet the max. tread depth of 5mm.
WHEELS Steel, aluminium (alloy) and carbon fibre allowed. Bead locks permitted.
Wheel weights must be stick on only and be securely attached. Any car using a lug nut type right front hub must use all six lug nuts. A 360 degree pressure plate of either 1/8” steel or 3/16”, aluminium or harden washers between the lug nuts and the wheel face is recommended.
Page 11 RUNNING RULES WILROC OFFICIALS WILL DIRECT THE RACE PROGRAM. THE RACE DIRECTOR HAS SOLE DISCRETION FOR THE RACE LINEUPS. THE RACE DIRECTOR CANNOT BE APPROACHED AT ANYTIME DURING A RACE UNTIL IT IS COMPLETED. Officials may require rookie drivers to start at the back of the pack.
Races cannot end on a YELLOW. We must have two GREEN laps to end the race. We DO NOT race to the yellow. When the yellow is displayed, slow down in a safe manner and line up single file (NO PASSING).
If you require a push truck, you maybe required to go to the back of the pack (whether you caused the yellow or not). On a red flag, all cars stop in a safe manner, then line up in an area designated by the race director. Then ONE crew member may attend to his car, NO air tanks, NO tools other than a flashlight. NO quads allowed on track.
Cars requiring any repair must report to pit area. Qualifying must occur at your designated slot. Failure to do so will result in qualifying last for 1 timed lap only.
The driver who qualifies the car last must drive for the balance of the event to be eligible for points. If a driver is unavailable to time in the car, he can make arrangements to have someone else time in his car and race it until he arrives at the track. Upon his arrival, he must inform the Pit Boss. It is also mandatory that the timing/announcers booth be notified prior to the event. Points will be awarded to the car number only. Numbers may not be transferred to another car for a point’s advantage. Points will be awarded as per the published schedule. Any amendments (eg. Double points races) will be preceded by a WILROC notification prior to the event. There will be no points awarded on cancelled events.
The #1 will be reserved for the car of the previous year’s Points Champion. Any car may be designated for inspections at the discretion of the WILROC officials. Failure to comply may result in loss of total points for the day or any other penalty deemed appropriate by the WILROC officials.
Untimed cars must start at the rear of the field in heats and main events. Page 12
In order to receive points for a race, the car must take the first green flag of the race. If a car is found illegal, the car may lose all points for the year and will forfeit all monies earned on the night of the infraction. Severity of the penalties will be determined by the WILROC officials.
Visiting cars will be at the discretion of the WILROC officials if they will be able to participate in the event.
SPORTSMANSHIP Sprint car racing is a very emotional sport. As such, good sportsmanship is the key element of any competitive racing program. This must include respect for all participants-drivers, owners, pit crews, and officials. For our part we will make every effort to be consistent with our rules regardless of whom or what is involved. We will treat all participants with respect and expect similar treatment in return. A racer’s pit area is his castle-therefore please stay out of other racer’s pit areas, especially after an incident when you have been involved with that racer. Drivers remember that you are responsible for the actions of your crew. Any offending parties will be fined appropriately and disciplinary actions will be initiated as deemed necessary.
PENALTIES Verbal Abuse to any WILROC official $100.00. Assault to any WILROC official or Track Owner/Promoter automatic suspension. Fighting results in a 1-year suspension. Rowdyism in pit area $100.00 Speeding in pits (after warning) cars and quads first offence $50.00 second offence $100.00. At anytime during a race no crew or driver will be allowed to approach lap recorders. Fine $50.00 All fines will be withheld from driver’s payout. Should the fines exceed the payout, they must be paid in full before offender will be permitted to participate in a WILROC event.
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PROTESTS 1. All protests must be submitted in writing to a WILROC Official within 30 minutes after the end of the last WILROC race and will only be accepted from a registered driver. Any engine protest must accompany $300.00 cash. If engine protest is found legal the monies will be given to owner/driver of protested car. All other protests must be accompanied by $100.00 cash.
If a protest is successful the protester will be refunded his money.
APPEAL PROCEDURE A participant desiring an appeal hearing of action taken by WILROC
must submit a written request to the Secretary of WILROC for an
appeal hearing accompanied by written reasons why an appeal should
be heard, no later than five days after the date of suspension or
fine. An appeal panel will be struck and a decision reached within 14 days of the date of the appeal.
NOTE: ALL DRIVERS MUST HAVE A CURRENT RULE BOOK IN THEIR POSSESSION AT EVERY RACE EVENT. POINTS STRUCTURE APPEARANCE: 10 points FAST HEAT: 36 / 34/ 33/ 32/ 31/ 30/ 29/ 28/ 27 / 26 / 25 / etc. 2ND HEAT: 24 / 22 / 21 / 20/ 19 / 18 / 17 / 16 / 15 / 14 / 13 / etc. A MAIN: 100 / 95 / 90 / 85 / 80 / 76 / 72 / 68 / 64 / 60 / 57 / 54 / 51 / 48 / 45 / etc. PASSING: There will be three points for each position gained in the A Main Event within the invert. Two points for each position gained outside the invert. |
