NO changes or alterations of rules may be made except by IMPACT motorsports


IMPORTANT:  Each driver and mechanic must sign in at registration desk the day of show and have their cars inspected solely to determine compliance with those rules and not for purpose of determining safety of car or participant NO REFUNDS!


I have read the rules and acknowledge to have received a copy of same and agree that the decision of the Judges is final.  I agree to participate at my own risk absolutely.  It is a condition of my participation in the contest that I sign a further release of liability in the form to be supplied by Impact Motorsports and I agree to sign such a release.


SPECIAL NOTICE: No alcohol or drugs allowed in any restricted (PIT, HOLDING OR PERFORMING) AREA.

Any violations will result in disqualification of CAR, DRIVER AND CREW.  NO REFUNDS!!!

The IMPACT Motorsports Demolition Derby is promoted as an unusual spectator attraction.


If you are unclear of a rule email or call our office for clarification.              


DRIVERS and MECHANICS are subject to and must obey the following rules and regulations which are set up by the promoter and the track where this event is being held:


  1. Each driver must be a minimum age of 16. All 16 & 17 year olds must have a parent or guardians sign an insurance waiver. Guardian must provide photo ID.
  2. The original registered driver must drive that vehicle for the entire event. No substituting drivers.
  3. Impact Motorsports or promoter reserves the right to approve or reject any and all entries, drivers or pit persons.
  4. Only drivers and mechanics who sign the release sheet will be permitted in the pit area or on the track. Driver and one (1) pit person receive free pit passes upon registration of car on day of show. All drivers and pit person must wear supplied pit passes.
  5. IMPACT Motorsports, the promoter, track owner or fair association will not be held responsible for any cars, parts or personal property before, during and after the show.
  6. Each competitor to carry their liability insurance. Impact Motorsports policy does not cover participants.
  7. Drivers and mechanics should report to the Impact Motorsports sign in area minimum of an hour before the scheduled start time.
  8. NO pit person under the age of 16. IMPACT MOTORSPORTS reserves the right to ask all pit persons for photo ID. All drivers and mechanics are in the pit area at their own risk.



Type of Car




  1. Any 4-6 cylinder hardtop automobile or station wagons. 6 cylinder cars less than 106” will compete in the mini class. 4 Cylinder cars do not have a wheelbase limit. STRAIGHT STOCK-80 AND NEWER- NO ENGINE SWAPS
  2. NO trucks, convertibles, jeeps, vans, hearses, limousines or checker cabs.
  3. Cars previously run in demos may be considered too battered and unsafe, resulting in disqualification.
  4. If there is in any question regarding the participant’s vehicle it is the driver’s responsibility to prove make, model, year, engine etc.







Risk: Demolition derbies are hazardous and high-risk sports; therefore, anyone with a health condition, i.e., concussion, heart problems etc. or who is pregnant should not compete.

Protect yourself. Work Boots, sport equipment – e.g. neck brace, knee pads, shoulder pads, hip pads etc. are recommended.   

No bare exposed skin.  All drivers MUST wear long pants/coveralls or long sleeved shirts. No exceptions.

Working seat belt and racing helmet are mandatory.  Helmets MUST have chin straps. Goggles or face shields are recommended.

BRAKES – Vehicles must have dependable brakes and must be working properly before entering pen at all times.  All boundaries must be observed.

NO DRINKING OF ALCOHOLIC BEVERAGES ON TRACK, EMERGENCY VEHICLE AREA OR IN THE PIT AREA.  Any driver or pit person under the influence of alcohol or drugs allowed in the pit area. This will be strictly enforced.

Competitive aggressive hits!  Careless driving in the pit area could result in disqualification.

All cars are to be removed from the fairgrounds or racetrack immediately following the show.

Additional safety regulations may be imposed, depending on track and conditions. 

Any protests must be made within 5 minutes of the last feature heat by another feature driver. Protest fee’s are $100 and are non refundable.

All decisions of the official are final. NO REFUNDS!!

If you think there is a grey area in these rules contact our office and we will put them in black and white for you. NO REFUNDS



Preparation of car MUST BE DONE prior to arriving. 2017 STOCK mini class 4 & 6 cylinder cars under 106” wheel base


ALL drivers and pit persons MUST sign the event insurance waiver. Failing to do so will result in disqualification. Pit passes must be worn at all times.

 2. Flammable Material

All carpet, headliner, door pads and ALL other flammable material MUST be removed from inside of car. Front seat and dash board may be left in place. It is suggested that the plastic bumpers covers be removed. They don’t do anything anyways.

 3. Glass/airbags

All windows, mirrors, airbags & trim, must be removed prior to derby event. No loose glass smashed into the bottom of doors. DRIVERS SAFETY

 4. Doors & Numbers

Driver’s door must be PAINTED WHITE. An optional roof number plate may be securely installed.  No all white vehicles.

 5. Fire Extinguisher

Must be within reach of the driver, must work and have a proper working gauge. Please check gauge on the extinguisher before arriving for the event.

 6. Battery

One 12 volt car battery must be moved to front passenger floor board and securely fastened in a box/container clear of all fuel sources. Following inspection it must be covered with a non-flammable shield such as rubber mat or steel cover. Heavy truck or farm batteries will result in disqualification. ONE BATTERY

 7. Gas Tank

Stock gas tanks must be removed. Must be a steel marine tank, custom steel fuel tank, or certified racing fuel cell.  Plastic tanks MUST have a rubber floor mat mounted between the floor and tank. All tanks must be securely fastened down (bolted) in the middle of the back seat area. Tank must be covered with a non-flammable material (rubber mat) after inspection. Maximum 5 gallons. No movement to occur during inspection. Leaks will result in disqualification

Gas tanks can be mounted to the seat bar but no bracing acting as a GTP. NO GAS TANK PROTECTORS .

 8.  Fuel Lines

All fuel lines must have leak proof fitting with steel or rubber lines (no clear lines). No exceptions. Lines should run inside car. Leaks will result in disqualification. All connections MUST have hose clamps to eliminate fuel leaks.

9. Electric Fuel


Must have a safety shut off switch marked in red located on roof in center of the windshield area for officials use. Switch to control fuel pump only. Driver’s safety. MANDATORY. This rule is for fuel injected cars only.

10. Fuel System

Electric fuel pump must be isolated with a non-flammable material covering lines, tank & pump. Example: covering may be fire resistant blanket or air bag material.

11. Trunk & Tailgate

Trunk/tailgate  maybe fastened closed in MAX  6 locations each. If trunk is fastened closed a 15” square hole must be cut in center of trunk for officials’ inspection. Bumper can be wired to trunk in 4 places.  No threaded rod in tailgate or trunk. No welding/bolting doors/hoods/trunks/gates closed.

12. Hood

Hoods are not mandatory. Without hood – use electric fan only – fans directly connected to motor must be removed. A 12” opening must be cut in the center of the hood. Hoods to be fastened in MAX 6 places using chain, strap, wire or belts. Hood may be bolted thru the rad support ONLY in 2 places with MAX 3/4″ bolts or rod. These bolts ARE NOT to extend past the rad support and count for 2 of the 6 places fastening hood closed.  Hoods must remain open for officials’ inspection. Hoods can be wired to the hood/rad support in 4 places.

13. Body Panels

Metal may be cut from around wheels for clearance.  No extra bolts add to body anywhere

14. Door Fastening

Doors to be  fastened closed MAX in 6  locations per door. No welding/bolting doors closed. Wire, chain, straps or belts only.

15. Bracing

Drivers side of car may have a 12” X 50” X ¼” max steel plate applied to drivers door bolted in 6 locations with a maximum ½”  bolt NOT welded. NO “C” CHANNEL OR ANGLE IRON.  Not mandatory but strongly suggested. NO Rear window bars. No hump plates. No gas tank protectors no dash or passenger side bars. No restrictions on drivers door reinforcement.

16. Roll bar

Single roll bar up each door frame, inside or across outside of the roof. Roll bars going across the roof can be bolted twice through the roof for driver safety. This roll bar may be welded or bolted down to the seat bar only NOT to floor or frame. . A seat bar MAX 3X3″ can be bolted or welded behind back seat from side to side to protect driver. No excessive use of materials.  Not mandatory. Seat/roll bars not to extend past back of drivers seat. Bar over roof cannot be attached to any other bar on the car except the rear seat bar. NO down bars to frame, floor or inside rocker.

17. Windshield/rear


One single bar must be in place from the lower cowl to the center of the rook. No larger than 2′ angle iron or 2X2 square tubing. NOT WELDED. ONE BAR ONLY

18. Dash bar


19. Interior


No welding of any inside body support seams or firewall seams. All holes in firewall must be covered with a non- flammable material. Large holes in car floors must be repaired with same gauge metal and securely fastened. No reinforcement. Drivers seat must be tied into roof or door post. Broken seats may result in disqualification.

20.  Bumpers

Front bumper only can be replaced with a full size car re bar. Example. Crown Vic or Caravan re bar. NO FULL SIZE CAR BUMPERS OR TUBE ALLOWED. No truck bumpers. A 2″ wide 1/4″ thick metal strap can be welded 2″ onto the end of the frame across to 2″ of the top of the bumper to help hold it on.  This can be done to the top and the bottom. Front and rear bumper can be wired to hood/rad support or trunk in 4 spots each. These will count as hood/trunk tie downs. NO tubing in frame to hold bumper on. Rear bumpers MUST be a stock mini car bumper. No over welding of front bumper. No hard nosing. If car has a mounting bracket on the end of the frame it must be in place.

21. Front Grill

Stock A.C. condensers permitted in original position. NO ADDED SCREENS

22.  Radiator

Must be flushed of anti-freeze and replaced with water only. Overflows must point straight down. NO reinforcement.

23. Transmission


No aftermarket transmission coolers.


No drive train protectors.
25. suspension/Steering Suspension must remain stock. NO modifications.  No modifications, welding or changing parts. If you have a broken part from a previous derby and you want to repair it call ahead for clarification.

26. Frames

No welding of frame seams top or bottom. Trailer Hitch must be completely removed. ZERO frame welding/repairs will be allowed. NO frame repairs. Rear frame can be notched.

27. motor mounts

Stock. No reinforcing mounts or chaining engine in.

28. Body Mounts

Stock. No extra bolts. Rubber mounts must be in place.

29. Tires

All tires must be filled with air only. Tubes allowed.  Doubled tires allowed.  No split rims. No screwing tires to rim or studding. All wheel weights must be removed and no welding stem protections. Referee’s discretion. NO triple side walls are permitted. “P” rates tires only. Low aggression. No bead locks or stem protectors. May use weld in centers on a stock mini car rim. NO homemade rims. No rally tires, skid tires. MUST BE P RATED TIRES ONLY

30. Pre-bending

NO pre bending or body creasing. STOCK. No pre bending any panels on a fresh car. No crushing trunk floor up.

“Official’s Decision is Final”