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 2001 Official Race City Motorsport Park
Figure 8 Vehicle Specification Rules & Regulations
A word of WARNING to FIGURE 8 STOCK CAR BUILDERS! These FIGURE 8 STOCK rules are specifically designed to keep the cost of purchasing and preparing a competitive car as low as possible. Money spent on a FIGURE 8 Stock Car should be used to make the car safer, not faster.
Figure 8 Stock Car Racing at Race City Motorsport Park is intended to provide a low-cost, fun and safe "learning experience" for the beginner driver. There are many opportunities to spend more money and time building a racecar than are required to build a Figure 8 Stock Car. CASCAR Street Stock, CASCAR Late Model and I.M.C.A. are options. If you want to build a fast racecar, DO NOT build a Figure 8 Stock Car.
Attempts to "bend" these rules or find and take advantage of a "loophole" will not be tolerated. If your car does not conform to these rules, your car WILL NOT RACE. Final decisions on anything and everything are at the discretion of the Race City Motorsport Park Tech Officials and Race Director.
GENERAL CAR SPECIFICATIONS
If it does not say you can do it... then don't do it!
1962 to present year, American-made automobiles, with factory specified 100" minimum wheelbase. No convertibles, trucks, Jeeps, or four-wheel drives allowed.
Absolutely no gutting of car metal permitted. This includes hood, trunk, door skins, fenders, quarter panels, roof and inner front fenders.
Bodies must be stock and retain properly secured metal hoods, trunk lids, fenders and doors.
Headlights and taillights must be removed and if covered, metal not to exceed 20 gauge.
All side chrome must be removed. No pot metal allowed. No sharp edges anywhere.
Antenna and stock outside mirror must be removed. Mirrors must be attached to the cage and not extend past the bodyline.
All upholstery and flammable material must be removed, with the seat and original dash being the only exception.
All cars must be brightly painted. No dull colors. Identical colour schemes not recommended for lap counting purposes. Must be neat in appearance.
All cars shall have complete stock floorboards in the driver’s area, sealed from gas tank and engine compartment. All holes in floor must be sealed.
Front stock firewall required with all holes covered with minimum 22-gauge sheet metal. Rear firewall must be minimum 22 gauge sheet metal installed at rear parcel shelf by welding, bolting or steel pop rivets only. No open holes allowed. No sheet metal screws allowed. No aluminum firewalls allowed.
Full front windshield required. If stock safety glass windshield is not used, minimum of 1/8" Lexan or equivalent required. No plexiglass. Windshields must have a minimum of four safety tabs, (two on the top edge of the windshield, two on the bottom edge of windshield) to ensure the windshield stays on car.
Sunroof opening must be replaced with solid metal, 22-gauge sheet metal minimum. No aluminum.
Window net mandatory. Must be quick opening NASCAR style. See Diagram B.
Side and rear windows must be removed and cannot be replaced with anything.
Steering wheel center must be padded with a minimum 2" crushable material. 12" minimum diameter.
Hood must be kept in place at all times. Hoods and trunk lids must be hinged in stock factory location and must be kept shut by approved hood and trunk pins. Hoods and trunk lids are NOT to be bolted down. Trunk must have full steel floor with a hole (minimum 6 inches in diameter) cut into the lowest point of trunk floor for fire extinguisher access.
Must have an effective muffler system to 98 db. Will be strictly enforced.
DOORS & SIDE PROTECTION
Doors must be securely fixed in closed position by bolting or welding.
Inside of driver’s door should be padded. Original door panel allowed.
Rollcage is optional, but may be added following Enduro Rollcage Rules & Diagrams. If a cage is installed exterior channel steel door bars are not required, but are still recommended.
One rollover bar mandatory. Must be located behind driver. Minimum 1.75" x .095 wall thickness with a 6" x 6" x 1/4" square plate welded on top and bottom of bar. Must be welded or bolted to roof and floor.
If car has no cage, a minimum of two driver’s side protection bars must be installed on exterior of car, one at shoulder height and one between doorsill and upper bar. Material must be a minimum of 4" - ‘C’ channel steel. 3/16" minimum. Channel must run from 6" behind front wheel well to 6" in front of rear wheel well. Must be mounted with a minimum of four 3/4" bolts or ready rod. Bolts to extend through door pillars with large washers (minimum 3") on each side. No chains. Bolts must extend through door skin and inner panel. Clean cut both ends to protect the driver.
No bolts through doors allowed on driver’s side. Must be directly in front of and directly behind door to prevent injury upon impact.
BUMPERS
Single front and rear bumpers are mandatory. Both must be stock, automotive type and mounted in stock location. No truck bumpers allowed. Bumper guards may be used if they are stock for body and attached by welding.
Forward edge of rear bumper to be curled inward. Material must be tight to body metal and firmly attached so as not to hook other cars.
Front bumper must be rolled so as not to present sharp outward edge, subject to Tech approval.
Front and rear bumper height must be between 12" and 22" from ground at center to top of bumper. If car is too high, springs may be heated to lower.
Bars may be installed behind the front bumper to protect the radiator. Maximum size square tubing 2" x 2" or round tubing with a maximum diameter of 2". These bars must be located within 2" of the radiator and no higher than the mid-height of the stock radiator and no wider than frame rails. This may not act as a ramming device and must be welded to the frame. Subject to technical inspection.
BRAKES
Four wheel hydraulic brakes with steel lines mandatory and all must work. Disc brakes allowable, must be stock type. No after market units will be acceptable. They will be tested at the track.
BATTERY & RADIATOR
Batteries may be relocated into the driver’s compartment behind the Driver. Battery must be strapped securely (solid steel strap or threaded rod and steel plate recommended, no bungee cords) inside a leak proof battery container. Cover of battery box must hold leaking battery electrolyte when assembly is upside down. One battery only per car. No batteries in the trunk.
All cars must start with a starter at the beginning of the program.
Safety kill switch required. Properly marked ON and OFF and easily accessible from outside of car. Switch to be located on driver’s side rear valence between the bottom of the rear windshield and the top of the trunk. At minimum, switch must deactivate ignition. If electric fuel pump, switch must kill battery power and shut off engine (See Diagram A).
One radiator only. Any size radiator, made for a car or truck, may be used as long as there are no holes in the hood. Radiator must be located in front of the engine, between frame rails. Must be shrouded at the top and side to side to prevent injury.
A one-gallon catch can is mandatory and must be securely mounted. Radiator cap must be of the safety, pressure release type.
No ethylene glycol coolants permitted. Water only. Water Wetters permitted.
GAS TANK & GASOLINE
Automotive fuel tank or fuel cell recommended. Boat tanks allowed. All tanks not considered fuel cells may be no larger than 10 gallons. Gas tank must be mounted in trunk compartment and securely mounted with steel straps as close to rear firewall as possible. Perforated steel straps are not permitted. Plastic tanks must be totally enclosed in close fitting steel enclosure, securely mounted. Fuel tank and supporting structure may not be lower than top of the rear axle tubes when the tank is full – not the differential housing. Fuel cell supports must be bolted to the frame, not welded. Rupture of fuel tank and/or loss of fuel will result in an immediate black flag. Only one fuel tank per car. No divided fuel tanks or fuel cells. Single fuel pick up only!
Electric fuel pumps not recommended.
Under no circumstances are tanks, lines or other fuel containers allowed in the driver’s compartment. Fuel lines must be securely attached. No lumber or wood permitted.
ENGINES
The engine must be stock for the make and model of car in which it is installed and be sitting on the original stock mounts. Snubber chains may be used to inhibit engine movement. No headers or any other after market performance parts allowed. Cast iron intake manifold only. Absolutely no grinding.
Only one 2 or 4 barrel stock carburetor for make and model may be used. Cars must have air cleaner to act as a flame arrestor. Any type of air cleaner permitted, must fit under hood. No adapter or spacer plates allowed. No RAM tubes, ducting or air boxes allowed. No Holley carburetors.
Stock oil pans only.
REAREND & TRANSMISSIONS
The transmission and rearend must remain completely stock. Changing of gear ratios allowed. Transmission coolers allowed, not run in series with radiator. Must be mounted inside engine compartment.
Transmission (automatic or manual) must have stock shifter and linkage, no homemade rod type shifters. Must have park, neutral, drive and reverse clearly marked for safety.
SUSPENSION, TIRES & WHEELS
The suspension must remain stock. Springs, shock absorbers and sway bars may be changed but must remain in the stock locations and mounted in the stock manner.
Heating of stock springs allowed to lower the car.
Panhard bar may be used in rear.
No racing springs or shocks allowed.
No traction bars permitted.
The wheels of the car must be stock passenger steel wheels. No racing wheels allowed. Steel white spoke truck wheels are allowed. Maximum rim width 7". Maximum tread width is 8", footprint, when inflated to 30 p.s.i. (no width tolerance). No wheels larger than 15" allowed.
Tires must be street D.O.T. tires maximum size H60 x 15 or 235/60 .R. x 15. No racing D.O.T. tires. No VR, ZR rated or Gatorback tires will be allowed. Maximum speed rating is HR.
No mud or snow tires and no studs.
NUMBERS
Each car shall be clearly and neatly numbered. Numbers to be in clear, contrasting colors.
Minimum height is 16" on both sides and 20" on top. Numbers to be 3" wide.
Roof number to be read from the passenger’s side.
No foil or metallic numbers allowed.
SAFETY, SEAT & SEATBELTS
Driver’s seat must be mounted at least 4" away from the inner door skin.
Bucket seat only. NO BENCH SEATS. Aluminum or fiberglass racing seat recommended.
Fiberglass seats must be reinforced with steel frame.
Seat must be securely mounted at bottom to floor, and should be bolted to rollover bar or horizontal bar behind seat to prevent rear breakage if impact occurs.
All seats must be bolted with large washers to prevent tear out on impact.
Minimum of 4-point approved safety harness must be worn. No stock seat belts. 5-point approved safety harness recommended. Must be in good shape and with quick release in center.
All belts must be securely fastened to the frame or cage.
All helmets must be competition approved Snell 85 minimum.
Fireproof driving suits are very highly recommended.
A minimum of long sleeved coveralls to be worn by all drivers when on the track. No shorts or tank tops allowed in pit area.
All competitors must have a portable fire extinguisher, serviced and tagged with a minimum rating of 20 BC (dry powder type) visible in pit area.
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