This Demolition Derby is open to any 1980 and newer full size cars.
All rules are subject to the interpretation of Perris Auto Speedway, their officials, any equipment that the officials consider not in the intent of the rules will be considered illegal for competition. In the interest of fairness the rules may be adjusted to create a balance in competition.



1. Car Pre-Entry $50.00. Day of the event entry $100. Entry Fee includes Driver’s Pit Pass. Additional Pit Pass $25.00 each and must be bought at the track pit booth. Anyone entering the pit area must be over the age of 14 and purchase and wear a pit pass and sign the insurance release form. If you look young, be prepared to show ID.
2. All protests must be turned in before drivers meeting and will be handled by tech officials and affected drivers only. Only drivers may protest! If a driver wishes to lodge a protest against another driver/car after the event starts, than he must put up a $50.00 protest fee. If accused driver is found to have cheated, by tech officials, then he will be disqualified and the protest fee will be returned. If tech officials do not find that drivers/car has cheated then the protest fee will go to accused driver.
3. All participants must be 18 years or older and have a valid drivers license. Be prepared to show license when signing in.
4. All injuries must be reported to derby officials, no matter how minor.
5. Car number must be displayed on car no smaller then 18”.
6. Vehicle must be ready to run when brought into the pits.
7. After vehicle inspection is completed, no modifications or preparations such as welding, or cutting bumpers, will be permitted! Creasing of the trunks will be allowed. 
8. Vehicles that catch fire and stop event may be disqualified for remainder of heat or main event.
9. Safety First! Any vehicle situation or setup which places any person at risk will not be allowed----Brakes, Tires, Etc.
10. All drivers must wear dot approved full/open face helmets at all times while in the vehicle. (No brain buckets, skull caps, ect.ect.)
11. Shoes, Shirts, and pants are required. Fireproof clothing is highly recommended.
12. All inspections will be made by officials only. Opposing drivers and pit crews will not be permitted to inspect vehicles.
13. All lights, glass mirrors, plastic and chrome trim pieces must be removed from entire vehicle.
14. All flammable material must be removed from vehicle, with the exception of driver’s seat and seat belt.
15. Original gas tanks must be removed. Fuel tanks with a maximum capacity of 6 gallons must be positioned in the rear seat area and anchored securely to the floor board. Metal boat tank recommended. No plastic gas cans allowed. “Jerry Cans” ok.
16. No loose materials inside vehicle, including tools and fire extinguisher.
17. Vehicle must have approved driver seat lap belt or harness. If vehicle does not have lap belt or harness, they must be added to vehicle. Driver’s seat must be securely mounted to the floor. (Shoulder belt recommended but not required)
18. No pressurized fuel system. No Propane or pressurized fuel cans. If you are running an electric fuel pump, than a safety kill switch must be installed on roof on driver’s side front and clearly marked. These switches will be tested at inspection.
19. Battery must be located, as it always has, in the driver’s compartment and must be covered and secured in such a way to prevent battery fluids from spraying. Two batteries allowed. No jumper cables allowed inside of car.
20. Drivers Safety cage. A simple square box around drivers allowed, Max of 6 inch material, channel, pipe, or box. Cage must not extend more than 12 inches behind door post. No part of cage may be welded or bolted to floor. Side bars may angle down to floor or be strait down. Safety First!
21. Rim size maximum 15 inches.
22. Transmission oil cooler lines, if used, must be covered and double clamp.
23. Radiator must be stock automobile and in original stock position, may be strapped or wired in, no welding. Fans optional.
24. Any vehicle may be searched for weapons, alcohol, and drugs prior to entering the pit area.
25. Only car, driver, pit crew members, and one (1) support vehicle properly indentified will be permitted to enter the pit area. No one under 14 years of age will be allowed in the pit area. Anyone under the age of 18 must have signed parental consent form. Again if you look younger be prepared to show ID.


1. All interior, glass seats headliner door panels & carpet will be removed no exceptions. 
2. Dash must be removed from car. & replaced by dash bar. 
3. Back bar mandatory no smaller then 3” not to extend more then 6” past the drivers back.
4. Driver will be in a driver’s box. (Bars to extend from back bar to dash bar on both left & right hand side of driver.)
7. Batteries will be mounted on passenger side floor board. Batteries will be in some kind of box, or wrapped in rubber.
8. Gas tank will be centered behind driver’s seat anchored to the floor.
9. Windshield must have two vertical bars running from top to bottom. Rear window will have no less then one and no more than 2 bars running from top to bottom.
10. Driver’s seat will be welded or bolted to floor. Drivers seat belt mandatory.


1. No welding on vehicle frame, except for motor mounts, and bumper brackets. (see rule 6 & 7)
2. No repaired frames allowed including used cars. If a vehicle has a broken frame, it is not to be touched-up or repaired in any way!!! Run as is.
3. No Attaching materials to frame anywhere, by any means including no welding, bolting, clamping, plating, duct tape, Ect.
4. No filled/Packed frames.
5. No trailer hitches.
6. Stock brackets may be welded to bumper and to frame. No braces may be welded or added to bumper and bumper cannot be welded to body. Bumper tips and fender wells can be trimmed.
7. Engines may be chained to frame. Fabricated mounts OK. 4” x 3/8” max. Flat steel plated bolted to engine and welded to frame strait down 90 degrees from inner side of frame. No kickers or Gussets.
8. It is illegal to weld, paint, undercoat, grease, mud, sand, grid, Ect. Any portion of car’s frame unless specified in the rules. Used cars must have frame washed of debris (mud/Dirt) from prior derby.
9. All doors trunk and hood will be chained shut. Only exception driver’s door and only driver’s door will be welded shut. (Hood may only be chained shut with four pieces of chain at four corners. Trunk may only be chained shut with four pieces of chain at four corners.)
10. All exterior molding & glass will be removed
11. Bumpers may interchange.
12. Bumpers may be welded to bumper brackets & bumper brackets maybe be welded to frame. Bumpers may “NOT” be welded directly to frame.
13. Interchanging of motors and transmissions are allowed.


1. No Solid suspensions. Vehicle must have 3 inches of suspension travel at both ends.
2. No Altered Shocks. Coil-Over shocks are allowed on rear only. No Air Shocks or Air Bags.
3. No Repaired, altered, welded springs, including used cars. No Extra or Substituted springs or leafs. Welding or duck taping any object to any leaf spring is not allowed. Bumpers must not be any higher than 24 inches.
4. Leaf Spring clamps are permitted. 2 Clamps are allowed per side. Clamp Plates not to exceed 3/8 inch thick, 3 inches wide, or 5 inches long. Clamps may be held together with 2 bolts per clamp. Rear coil springs must be secured, clamped, chained or welded to the differential. Coil Spring Spacers ok to raise car to 24 inches.
5. No Shortened, lengthened or designer spring shackles or perches. Suspension must be secured to vehicle using oem-stock shackles and hardware, and secured to the frame at stock location, using stock design. Used cars are no Exception.


1. No stuffing, packing or reinforcing of body, bumpers, or frames, except safety cage.
2. Trunks must be opened for inspection a maximum of 4 chains may be used to secure trunk lid
3. Trunk lids may only be chained. Maximum washer four inches in Diameter, all washers no more than ¼ inch thick.
4. Hoods are to be chained with a maximum 4 chains. All washers maximum of 4 x 4 x ¼ thick. Hoods must have a six inch by six inch hole around the front of the carburator for fire suppression. 
5. No station wagon deck lids allowed.
6. Doors must be chained shut securely. All doors must open for inspection at race track excluding if you chose to weld driver door.
7. Any opening on the firewall larger than 2inches must be covered / sealed with sheet metal. Sheet metal may be secured using screws, rivets, or tach welds. If you cut around the distributor for clearance it to must be covered.
8. No reinforcing will be allowed except on driver’s door. Safety First.
9. No tire chains, spikes, studs, or dual tires will be allowed. Valve stem Protection is allowed, limited to 1 inch long 1/8 material. 
10. All body bushing may be removed at diction of driver.
11. 2 vertical bars are required in windshield opening, 2 bars optional 1mandatory in rear windows of Sedans.
This includes the hood and the trunk.

Safety and Derby Rules

1. A DOT/Snell approved crash HELMET IS REQUIRED with working chin strap; loss of helmet during derby will result in car and driver being disqualified for that heat. All pit personnel must be attired for working around vehicles. NO OPEN TOED SHOES OR SANDALS ALLOWED. 

2. Drivers MUST wear long pants, shoes or boots, Long sleeve shirt and gloves while on the track. Approved fire suit & neck collar recommended. 

3. Drivers MUST wear eye protection while on the track, full face shield, goggles or approved Safety Glasses. 

4. The basic idea of a Demolition Derby is for cars to ram/smash into and eliminate each other. AVOID DRIVERS DOOR AT ALL COST, if you hit a driver’s door you will be DISQUALIFIED. It is acknowledged that the activities of this event are very dangerous. Upon entering any restricted areas you must inspect the restricted areas you enter. If you find anything to be unsafe, bring it to the attention of an official immediately and if necessary leave restricted area and/or refuse to participate further in the event. 


6. A driver MUST make substantial contact with another car every TWO (2) minutes. Keeping away from the action, taking too long to start the car or being locked up with another car too long will result in elimination from the Derby. If a car catches fire it may not restart the Derby if deemed to be unsafe by the officials. 

7. DO NOT drive out of the designated derby area. DO NOT push someone else out of the derby area. 

8. An Orange flag (min. 12in x 10in.) MUST be securely fastened to the car within reach of the driver. Flag MUST extend 6in. above roof. When eliminated from derby, tear flag off to signal to other drivers you are out of competition. If the flag falls off, you are eliminated. DO NOT hit a car that is already eliminated; if you do you will be disqualified. Once you take your flag down, you CANNOT put it back up. 

9. Stay in your car at all times during the running of the derby. You MUST remain buckled in your car with your helmet on, even after your car has been eliminated. If you have an emergency and must get out of your car waive your flag at the officials so that they may stop the Derby. It is extremely dangerous to get out of your car while the derby is still running. 

10. In the case of an emergency, an air horn will be sounded along with the red flag. Stop your vehicle and allow the Officials and Safety Crew on to the track. You MUST stay in your vehicle unless an Official allows you to exit your vehicle if you are already eliminated. 

11. NO ONE but the driver and officials are allowed on the competition arena at any time. 

12. ALL DRIVERS MUST attend the drivers meeting which is approximately 1 hour before each event. If you do not attend the drivers meeting you will be disqualified.

13. The Last Car running will be the “Winner”.

14. All cars used in the derby must be removed that night. (b) Failure to remove your car will result with any or all of the following: charged a disposal fee, loss of any money or winnings, loss of points for the event, suspension from future events.

A. Sandbagging: Holding back and doing little contact.
B. Getting tied up with another car too long.
C. Not making contact with other cars on its own power.
D. Taking too long to start car.
E. Driving out of derby area.
F. Unsportsmanlike conduct.
G. Having pit crew members in the arena during the event.
H. Possession of alcohol or drugs in the pit.
I. A car that is producing heavy smoke.
J. Having obscene language or illustrations on car.
K. Intentionally ramming of opposing driver’s door.
L. After a heat, repairs can be made. Metal can be cut or hammered away but not added or welded for extra strength.
M. Changes made after inspection.
N. Hitting a car with no flag up.
O. Drivers are to stop immediately when hearing or seeing official’s signals. Failure to do so is grounds for disqualification.
P. Double teaming: one or more cars holding opposing cars while another rams him.
Q. Harassment of Officials or fellow drivers and/or pit crew.

Any infraction of the above said rules will be judged at the discretion of the officials and may constitute complete disqualification, including placements of heats, forfeiture of any and all trophies or prize money, and all future promotions.