“Making an Impact at your event”





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


Office phone (705) 357-0350



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. 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. 2017 Old Iron rules open to older. 6-8 cylinder hardtop or station wagons with a wheelbase of 106” or larger. This is and OLD iron heat. If you are not sure if your car falls into the “old iron” class please contact us.
  2. NO trucks, convertibles, jeeps, vans, Imperials, suicide door Lincolns, hearses, limousines or checker cabs. If you unsure of a rule contact us via email.-


  1. Cars previously run in demos may be considered too battered and unsafe, resulting in disqualification.
  2. 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 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!!

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.

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.                                                                                         Stock Old Iron – 2017

 1. 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.

2. Glass/airbags

All glass, lights, airbags & trim, must be removed prior to derby event. No loose glass smashed into the bottom of doors.  Trailer hitch MUST be removed.

 3. Doors & Numbers

Driver door must be PAINTED WHITE. An optional roof number plate may be securely installed.

 4. 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.

 5. Battery

 ONE 12 volt passenger  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. Max 1 battery.

 6. 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. No movement to occur during inspection. Leaks will result in disqualification. NO GAS TANK PROTECTORS. If gas tanks are mounted on the seat bar the bracket cannot in anyway act as a gas tank protector. No exceptions.

 7.  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.

 8. Electric Fuel Pump

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.

 9. 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.

10. 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 must remain open for officials’ inspection. Hood must be fastened down in maximum of 8 places including threaded rod or with seat belt strapping, wire, chain only, or bolted to fender. Hood latch should be removed. No welding hoods closed. Hoods/rad support can be wired to bumper in 4 places.  Maximum of 2 spots with threaded rod maximum of ¾ inch holding the hood shut. These spots will account for 2 of the 8 spots. Rubber mounts must be in place.


Trunk/tailgate can be wired, welded, chained or strapped closed. Trunks/tailgates can be wired, strapped or chained in 4 places to rear bumper. Maximum of 2 spots with threaded rod maximum of ¾ inch holding the trunk shut. Max washer size 4X4 for threaded rod.  Hood/gate can be fastened closed in a max of 8 places total. Speaker deck must remain in factory position. NO welding trunk/tailgate to bumper. Trunk can be bent 90 degrees in the middle. Ask Greg if you don’t understand this rule.

12. Body Panels

Metal may be cut from around wheels for clearance.  Panels may be bolted with up to 5 bolts per panel – maximum 3/8” bolt. No body shaping

13. Door Fastening

All doors must be fastened shut with chain, wire, straps or weld.- Max 8 spots per door. Solid driver’s door window screens are not permitted.  Driver’s choice.  Doors can have 8 3X3″ (Per door) plates welded to hold door closed.


Outside of car may have a 12” X 72” X ¼” max steel plate applied to driver doors ONLY. Bolted in 4 locations with a maximum ½” through bolt- NO WELDING SIDE PLATES. Bevel should not exceed 22°. NO “C” CHANNEL OR ANGLE IRON. Not mandatory.

15. 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 CANT be welded or bolted to the frame or rockers. An additional bar can be added behind the seat welded or bolted from roll bar to roll bar. Recommend 3″ to 4″ square tubing or pipe. 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. Halo bar can be bolted to roof in 3 places. Cage is a simple square to protect the driver with a halo bar. NO DOWN BARS

16. Front/Rear Window area

Must have a minimum of a single steel bar or chain from the cowl to the roof bolted or welded. The “A” or “H” style protection is permissible but the bars must look like the A or H. If using the “A” it may be welded or bolted in 3 locations. Windshield bars to protect the driver only.  No rear window bars.

17. 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. Driver’s seat should be tied to roof or door post. If seat breaks driver could be disqualified.

18.  Bumpers

Any year. CAR BUMPERS ONLY, to be used. Front & rear bumpers may be reversed and flipped upside down. Bumper ends may be bent in so not to catch on other cars or  cut off. Bumpers may be wired in 4 locations to rad cradle or trunk. Bumper shocks may be reinforced with one piece of flat bar 3” wide to be welded from the top of the bumper to the frame- or bumper shocks can be welded with no added metal.. Excessive use of material will be asked to be removed. No loading of bumpers. No seam welding bumpers. Officials may request a hole be made in bumper for inspection. No metal added. Reinforcement will result in disqualification.  Stock style mounting brackets. Brackets can be interchanged. GM to GM only. Front on front and rear on rear in Factory position. No Pushing brackets back. Chevy “cups” can be used on BOP and other way around. No GM brackets on Dodge/Ford ETC. If car had bumper shocks from factory it must have shocks in place. Shocks can be welded and shock plate can be welded to back of bumper. NO frame shortening. No hardnosong.

20.  Radiator

Must be flushed of anti-freeze and replaced with water only. Overflows must point straight down.   Stock AC condensers in front of rads only. No rad protectors. Mounted in stock position. Aluminum rads allowed.

21. Transmission


Permitted and must be secured in engine compartment or welded to rear seat bar. No coolers in the front seat area. Transmission dipstick must be securely fastened, wired down or have an overflow tube pointing straight down away from drivers or spectators. Hoses must run straight down under driver seat and be completely covered with non-flammable material. Hose spec: Hydraulic hoses must have pressed fittings only. No rubber lines with hose clamps.


No engine or trans protection or bracing of any kind. NO trans braces, steel tailstock or aftermarket bell housings. May use aftermarket pedals- NOT to reinforce the car in anyway.
24. suspension/STEERING Suspension must remain stock. It is recommended that rear coils be wired/welded to differential. Leaf spring cars can have a total of 6 additional clamps on springs. No spring blocks or added helpers. Gears may be welded. Steering columns can have U joint welded top and bottom but MUST start as a factory steering column. Drive shafts, front/rear a arms, ball joints, rear control arms and steering linkage can be exchanged. No slider shafts. Factory tie rod ends can be reinforced.  Rear control arms can be altered to change diff angle. Only 1″ of over lap to weld back together. NO SOLID SUSPENSION- Any form of reinforcement at officials discretion will be altered and cut.

25. Frames

Rusty or bent frames may be repaired with 1/4″ plate. Plate size 4X4″ MAX. Official’s discretion. No painting of frames.  All repairs to frames must be reported to officials before inspection – over-repaired frames will be asked to be cut – if not – may result in disqualification.  Maximum of 8 repair plates. NO HUMP PLATES.  NO TILTING FRAMES.  Repair plates must have 1” between each plate. No butting or over lapping repair plates. No welding 2 different styles of frames together. No frame shortening. No seam welding. Any over repaired frame MUST be discussed and have picture before doing so. Officials desecration.

26. Diff protectors

Car rear ends only. No hybrid or truck rear ends. Rear ends can be switched- GM into Ford.  Must not reinforce frame or body.  Rear wheel drive cars MUST have differential covers bolted on. NO diff protectors. No over welding to interchange diff’s. MAX 5 bolt diff’s. MAX 31 spline axles. NO AFTERMARKET diff’s or axles.

27. motor mounts

Stock mounts may be welded or chained. Any excessive or added mounts will result in disqualification.  2 extra chains may run from engine upper control arm area incase a motor mount breaks. No extra chains, wires or straps from engine/transmission to frame or body. No welding of links NO Exceptions.

28. Body Mounts

All rubber stock body mounts and stock size bolts must stay in place. Max flat washer size – 3”. Two threaded rods are allowed for the rad cradle and trunk thru factory mount holes. Factory bolts can be swapped out. . Increasing bolt size is not allowed. NO EXTRA MOUNTS.  ALL. Stock rubbers must be in place or hockey pucks.

29. Tires

Drive tires must be low aggression. All tires must be filled with air only. Tires may be doubled. No split rims. No screwing tires to rim or studding. All wheel weights must be removed and no welding stem protections. Carry spare mud tires in case track conditions warrant.  Over aggressive drive tires may result in disqualification .Referee’s discretion. NO triple side walls on drive tires but are permitted on steer tires only. No bead locks front or rear. No rim protectors. Weld in wheels centers are ok.  Rally, skid and forklift tires are allowed.

30. Pre-bending

Can be deemed unsafe to other drivers resulting in alteration or disqualification. Modifications deemed unsafe will result in disqualification. No body shaping. Trunks can be pressed down no more than 12″. Speaker decks Must remain in stock position. NO sedagons. Pre ran cars please call ahead for rule clarifacation and the OK to run or alter to attempt to stick to the rules.