Click to Download Demo Derby Rules
**** Denotes Revisions 1-31-06
Rule #10 is no longer applicable, as of 2-13-06
***If car does not pass inspection or driver is unwilling to change car to pass inspection - absolutely no refunds!!
1. All rules will be followed, or you will not run!!
2. Any American make sedan or station wagon can be run. No 1973 or Older imperials or Imperial sub-frames/ frames, 4×4’s, ambulances, hearses, trucks, limousines, etc…
3. All bodies must be mounted on stock frames. No frame swaps. (Example: 67′ Imperial sub-frame on a New Yorker)
4. No reinforcements allowed other than specified below. Any metal added to reinforce the car is illegal! ABSOLUTELY NO WELDING ON FRAMES OR BODY UNLESS SPECIFIED!!
5. Drivers must be 18 years of age and have a valid driver’s license. Ages 14 –17 must have a notarized permission slip and some form of driver’s license.
6. Driver must wear seat belt and helmet, along with eye protection at all times when operating vehicle. Also all vehicles MUST have a fire extinguisher mounted inside the car, with in reach of the driver.
7. ALL drivers and crewmembers must attend the drivers meeting.
8. DO NOT hit the driver’s door! Sometimes this happens, but if it looks intentional or carelessness, you will be disqualified. Don’t use your door as a shield, it may cause you to get disqualified.
9. No hot rodding in the pits, keep it at an idle.
10. **** This rule no longer applies as of 2-13-06 *****Any open door or fire will cause disqualification. If in heat, you may fix it and come back in the consolation.
11. NO sandbagging or holding!!! You will be disqualified!!!
12. ****You are given 60 seconds for aggressive hits, 1 minute for restarts and 1 minute if you are hung up. ****
13. No alcohol in the pits, if anyone is caught with alcohol, they will be disqualified, this includes their pit crew.
14. Cars are subject to re-inspection before any prize money is handed out. There is a $100 pro-test free and you must be a driver in order to protest. Driver must have cash in hand directly after feature event in order to pro-test.
15. Any controversies will be taken up at the drivers meeting.
16. Any questions give us a call! If it doesn’t say you can do it, don’t do it. Call 1st!!
17. Judges decisions are FINAL!!!
PREPARATION:
1- All glass, plastic, and pot metal must be removed. Nothing may remain in the bottom of the doors or trunks. All outside hardware must be removed (door handles, mirrors, chrome, molding, screw, fiber glass, Station Wagon Decking, etc)
2- No added weight to the car except the weld. No buffing, grinding, or packing the frames, trunks, doors, or under floor.
3- Front seats must be securely mounted to the floor however if you are using bolts to secure the seat, they may not go through the frame. Must have some form of an operable seat belt. All cars MUST have inner padding on driver’s door.
4- All flammable materials inside the car must be removed except necessary safety padding and seat.
5- ****Any style box cage is allowed in drivers compartment. Cage may not attach to frame and be no further than 6” behind the front seat.****
6- Skid plates are allowed must be separate oil/transmission plates. No full-length skid plates, No bolting or welding to frame.
7- Minimal pre-bending of body is allowed, no tucking allowed, must have access to inspect.
Fuel Pumps:
1- Electric Fuel Pumps are allowed. Must be covered and have cutoff switch near steering wheel and marked in Large Red Letters. All lines must have double clamps.
Tires:
1- ****Tires no bigger than 15 inch (8 ply max) may be used. No split rims, studded tires or tractor lugs. Foam filled or Doubled tires are OK-we don’t want any flats!!! Valve seam protectors allowed but do not screw tire to the rim.****
Brakes:
1- All cars must exhibit the ability to stop. If a car loses its braking ability it will be subject to disqualification.
Engines, transmissions and rear ends:
1- Any power train combination may be used in any car, but must be mounted within 5" inches of the original motor. Must be mounted securely. You may cut a hole in the firewall to accommodate the engine within reason. However it must be covered to prevent a fire hazard.
2- No holes will be allowed in the front floor of the car except to accommodate the transmission shifter, fuel lines, transmission lines and wiring. Patching holes is for safety not reinforcement; if patching rust holes you may use sheet metal only and not exceed 2” past where rust stops.
3-Stock motor mounts may be welded; transmission and motors may be chained, only secure motor chains to an existing bolt, do not weld or add plates to attach it to the frame.
4- Rear ends must be of a passenger car origin only, maximum 5 bolt. You may use any type (Ford/GM/Mopar/Hybrid) rear end in any make of car, no floater or truck rear-ends may be used. You may tilt rear end by shortening or lengthening rear-end control arms, however they must still be working. No excessive reinforcement, do not reinforce more than one inch past extension area(must be in the middle of the arms) and no metal added to the inside or ends of control arms.
Doors and windows:
1. ****All doors may be welded. You may use up to 2” flat bar on the seams.****
2. If you do not weld your doors you must chain or use #9 wire, at least twice per seam. You may not bolt your doors shut. If chaining or wiring, none may go thru or around the frame.
3. A minimum of one bar, chain or wire running from the outside (top) of roof down to the cowl on the front window is MANDATORY for safety.
4. Drivers door may have window netting for drivers protection. No other window opening is allowed to have any form of window netting which includes #9 wire.
Welding:
1- The only welding allowed is the bumpers shocks, brackets and seams, cowl bar, stock motor mounts, safety pipes and doors.
2- ****Hood may be bolted, wired, or chained shut only. Trunk may be welded with a 12” cut out.****
3- No stacking of filler in any seams or gaps.
Bolting:
1- ****May use 4 (four) hood bolts to hold the hood down. They may be a maximum of ¾” in diameter. Must be sheet metal to sheet metal only, with the exception of the front two bolts may go through the frame.****
2. May use 4 (four) ¾ inch bolts to secure the trunk lid or tailgate, however may not go through the frame. Station wagons may use two straps and 4 bolts total to hold the tailgate.
3- Washers may not exceed 5" (five) inches in diameter.
4- Only three 3/8” bolts or self tapping screws with 1” washers per cutout hole (trunk/hood), or wheel well.
5- No welding of the cutouts is allowed.
6- You must have a 12X12 inch hole minimum cut in the trunk lid for inspection
7- Hood must be off or open during inspection.
Chains or # 9 wire:
1- 3/8” inch chain is allowed to secure front and rear bumpers to the frame. Only two chains may be used per bumper. Must not extend past radiator support in front or factory brackets in the rear.
2- No chain may be welded at any point to the frame or body.
3- If you don’t secure using bolts you may chain or wire the hood or trunk in 4 places with chain no longer than 24" inches. Don’t not wrap around the frame. Sheet metal to sheet metal only.
4- You may weld a 5” washer to the hood or trunk to run the chain or wire thru.
5- ****You may chain your motor, chain can be bolted or welded to frame.****
6. ****You may chain or weld your axle to the frame, to prevent loss of leaf or coil springs.****
7.You may not weld any chain links to create a bar effect.
Bumpers:
1- ****Bumpers must remain stock. No homemade bumpers or brackets.****
2. You may weld the bumper seams, shocks and the brackets to the frame. If you choose not to use brackets, you may weld bumpers directly to the frame however NO added metal may be used. No welding on frame except the brackets.
3- Bumpers may be cut so they do not smash into the tires during the event: Bumpers may be flipped.
4- Compression bumper shocks may be drained, slid back into the shock and welded fully. Weld them good we don’t want bumpers on the track
5- No material may be added other than the weld.
6- No bumper chrome may be welded to the body.
Frame:
1- There’s absolutely no welding on the frame unless specified in the rules.
2- Original body on stock frames for that year must be used.
3- You may cut frames for minimal pre-bending, but may not weld the cut.
4- You may replace stock bolts and washers on outside of body and frame, but must not exceed stock bolt diameter or 5" inch washer diameter.
5. No body bolt may extend below frame, all bolts and nuts must be inside of frame.
6. Do not paint, undercoat or cover the frame in anyway.
Radiators & Radiator supports:
1- Radiators must stay in the stock position. (No added water capacity).
2- Lower Radiator support body mount bushings may be removed and replaced with Max. 3/4” bolt and can go up through your hood (counts as hood bolts).
Transmission coolers:
1- Transmission coolers will be allowed.
2- Metal or steel braided line must be used. Rubber lines must be double clamped and minimal inside the car. No fuel or low pressure line may be used.
3- Transmission Condenser must be enclosed or covered.
4- Overall safety will be determined by officials at time of inspection.
Gas Tanks:
1- ****Original gas tanks must be removed from the car, or have visible drain cut out.****
2- You must have gas tank securely mounted inside the car, behind the driver’s seat and covered. Your fuel line may only be ran inside of the car and may not go down through the floor and along the frame rail.
3- A maximum size of 6.5 gallons can be used: A marine type tank and/or fuel cell must be used.
4- Overall safety will be determined by officials at time of inspection.
Battery:
1- Maximum of 2 (two) 12-volt batteries may be used.
2- The batteries must be securely mounted inside the car in front of the passenger seat and covered.
3- Overall safety will be determined by officials at time of inspection.
Air Cleaners:
1- You must have an air cleaner over the carburetor at all times during the event.
2- No starting fluid will be allowed.
3- There must be 12X12 inch opening cut in hood in case of a fire.
Suspension:
1- Suspension must be Original Factory for that make and model of car. (No pulling shocks and putting pipes in their place).
2- No other means other than tires and coil spring spacers may be used to raise the car’s front suspension. Both ends of car must have a working suspension and bounce freely.
3- No adding reinforcements to the suspension or steering parts. Steering wheel to control box can be modified only.
4- No putting leaf springs on top of the axle.
5- You may not clamp the shocks. No solid suspension.
6- You are allowed nine (9) leaf’s maximum and have factory spacing. You may use 3 leaf spring clamps/shackles per leaf (not excessive in size, only two bolts per clamp), No welding. Springs must be of passenger car origin. NO TRUCK LEAF SPRINGS ALLOWED.
7- Suspension must work. Air shocks lines must be cut.
