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Demolition Derby

Date: Sept 23, 2018
Squealin' tires, burnin' rubbing and crashing cars and trucks are back again! See the Demolition Derby, featuring cars and trucks on the same day this year!

General admission bleacher seats for all Fair events are free with admission to the Fair; however a limited amount of reserved seating is available for purchase. Reserved seat tickets do not include admission to the Fair. Age 3 & older must have a ticket in the reserved seating area.

Scroll Down For Rules!

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Rules For Car Demolition Derby

All cars will be inspected before the derby by track officials. All cars hood and trunk area will be opened for inspection. All winning cars may be re-inspected prior to leaving the arena area and before payout. No pit crew members will be allowed in the arena during the re-inspection of winning cars. Drivers can be scored down or disqualified, if they have not complied with the derby rules and /or the official’s decision in tech inspections. No additional welding will be allowed on any vehicle following tech.

The Derby is open to any American made hardtop model stock car or station wagon. NO Imperials. No Trucks, Commercial Vehicles or Convertibles allowed.
1. All glass, all chrome, exterior mirrors, headlights, taillights, chrome rings, emblems, grills and flammable materials must be removed. Glass cannot be rolled down, it must be removed. Rear seats must be removed. All car preparations must be done prior to coming to the event.
2. Doors must be chained and welded shut securely, 2" 1/8" thick strap. chains must be at least a minimum ¼” inch and a maximum of ½ inch chain. No chain can exceed 3 feet in length anywhere on the vehicle. You are allowed 5 bolts per fender may only bolt inner and outer fender skin max size 3/8" with 1.5" washer...
3. A behind driver, safety bar is mandatory and may be welded or bolted behind driver’s seat from side to side. A safety bar on driver’s side door area is mandatory and optional on passenger side, but is recommended. The driver’s door side bracing must not exceed front windshield post to no more than 8 inches beyond body seam. Bar may not run the full length, inside of vehicle. The safety bar and crossbar bracing cannot exceed 6 inches in diameter. Window post to window post bracing is allowed and recommended. No other bracing is allowed. Halo bars allowed must be vertical. no safety bars attached to the frame.
4. Trunk lids may be chained, bolted or welded. Maximum bolt, 1 inch in diameter – maximum washer size, 6 inches in diameter and no more than ¼ inch thick. Only two (2) bolts are allowed on trunk, a maximum of four (4) chains no longer than 3 feet each may be used or (2) chains and (2) welds not to exceed 6 inches each. if not using bolts you may weld solid with 10" inspection hole.
5. Hoods: Bolts or chains or all threads through hood to frame or wheel well are OK. Maximum of (6) six mounts only (2) may be connected to frame (may be attached to the side or through frame only (parson's rules) may be welded. You must have a minimum 6 X 6 inch hole cut in hood for fire safety. Through hood exhaust is OK. HOODS MAY NOT BE WELDED!!!!
6. Vertical window bars are mandatory. Minimum of two (2) with a maximum of (3) bars or bands must be used. A window screen is allowed so long as the vertical bars are also installed and screen can be easily removed for driver safety in an emergency.
7. Bumpers must be OEM stock, (automotive). Stock brackets may be welded to bumper & frame. No braces welded or added to bumper. Bumper cannot be welded to car body. Chain around the bumper is allowed, and bumper tips and fender wells may be trimmed. No reinforcing with added metal. No wrapped, backed or reinforcing of bumper. Automotive makes may be swapped. - brackets MUST be of that car or that bumper. Brackets may not extend more then 14" from the back of the bumper.
8. No chains or U-Bolts allowed around body to frame on any car. If chain is needed after a heat or repairs, you must contact track official for approval and inspection prior to and after the repairs. No exceptions.
9. Bumper height will be measured by officials . Maximum height from ground to bottom of bumper not to exceed nineteen, (19), inches. No coil to leaf conversions. Only stock automobile springs. No extra leafs, no welding on springs. OEM shackles only. Previously run derby cars with broken springs or shackles can be repaired ONLY. 9 leafs max!
10. No trailer hitches. No objects protruding outside of car. If officials determine that a car is unsafe it will not be allowed to run.
11. Gas tanks must be a safe container and made of steel. Example: Jeep can, boat tank and must be approved by an official. NO PLASTIC containers. Gas tanks must be securely placed and must be bolted and/or chained solid. Tanks must be capped and placed directly & securely behind the driver area or in the center of the rear seat area. Stock gas tanks cannot be used and must be removed from the vehicle. Electrical or pressure type fuel systems. Exception: newer model cars equipped with fuel injection systems that run with electrical fuel pumps, an electrical “Kill Switch” must be added, placed and marked where an official can easily shut it off from outside the vehicle. (Roof of car is the best location).
12. Batteries may be removed from engine area and moved to the inside of vehicle and placed in a secure mounted and approved battery box, placed in the passenger floor area. All batteries will be covered with rubber inner tube to protect the driver. No wooden boxes or plastic milk crates.
13. Radiator must be stock automobile and in original stock position. No additional radiator supports or mounts, only wire, straps or plastic ties may be added. No water inside of car.
14. Firewall must be stock with no large holes, all holes must be covered.
15. No truck third members or rear ends.
16. Safety belts and or lap harness belts are required. Seat belts must remain buckled during the entire time of the event. EXCEPTION: FIRE.
17. Approved safety helmets are required, and must stay on during the entire length of time of the derby.
18. You may replace body bolts with 3/4" all thread and bushings may be removed. Frames must be in OEM condition on any/and all vehicles. NO ADDED METAL (INCLUDING WELDS) No welding body to frame! SEAM WELDING ON FRAMES ONLY ALLOWED ON FRONT FRAME FROM FIREWALL FORWARD!!!!!! NO SEAM WELDING BODY PANELS IN FRONT
19. Must remove inside spare tire compartment lid and all seats from station wagons.
20. No grooved or farm tires, regular automotive tires must be used, not to exceed 12 ply (7.00x15) No cement, hoops, liners or fluids in tires. Tire rating must be clearly legible on tire. -TRYING TO KEEP DIRT OUT OF THE STANDS
21. Car numbers must be 18 inches and letters must be 10 inches on both sides and top of car. Use a clearly contrasting paint from the color of the car, so it is visible and readable to the officials & announcer. Any multi-car entries must have separate numbers. ROOF SIGNS OK.
22. A vehicle discharging heavy smoke after an event has started may be disqualified. Official’s discretion.
23. TIME LIMIT: If you do not hit within 90 SECONDS or less you may be disqualified.
24. The jb19 rule: if the derby is stopped twice for fire on the same car you will be counted out at that point.
25. You may add (2) body bolts with max 6" washer any location you choose, must be painted white...... if battery box, seat belt, tranny cooler or any other item is bolted to the frame it will count as one of the added mounts.
26. Engine cradles, distributor protesters and transmission braces are allowed. The transmission may only be held to the engine with the stock number of bell housing bolts. If running "header protectors" they must be a minimum 6" away from any part of the hood.
Note: OEM means original equipment of the manufacturer.
80’s and newer (in open show)
- You may pitch, tilt or tip 80’s and newer style cars in 3 following ways only
1. You may cold pitch, no added metal.
2. You may cut all three flaps and pull the front end down moving the flap ½ inch and re-weld. Do not re-weld any other crush box seams, no added metal or plate.
3. You may pitch at the transmission cross member, since you are already allowed to weld a 5 inch piece of angle there to mount your cross member.
98 and newer
- Watts-link conversion for Fords. You may convert a Watts-Link to a standard 4 link system in the following way: Use the upper and lower trailing arm brackets off an older Ford. After market brackets are allowed, but no thicker than ¼ inch and may be attached with max of 3 – 1/2“ bolts each side. No shortening of trailer arms, no positioning of brackets to strengthen the front down legs of the rear hump, must be mount in the stock location.
03s and newer
- May run the original aluminum cradle and stock lower A-arm. Johnson bolt in steel cradle or similar is allowed
- Upper A arm, motor mounts and spring bucket must mount off the 2 existing cradle bolts. No frame welding allowed for these components.
- No mounting plate or component may extend more than 2 inch in front of or behind the cradle bolts, measured from middle of of the bolt, this rule will be strictly enforced.
- You may use any automotive or fabricated spring bucket but it must not strengthen the frame in any way, cannot not be larger than necessary to hold coil spring. Again must be mounted off 2 existing cradle bolts. DO NOT weld to frame in any way. you will also not be able to add any extra body bolts on your car!
- No pinning of frame.
- To mount steering box, you may weld a tube to the top and bottom of frame. Do not weld excessively, do not pin frame to mount the steering box.
- Do not weld any seams behind the A-arm, even if the factory skip welded the seam, do not weld!
- If you choose to pitch, this must be done at the trans cross member only.
- if cross member is changed it must bolt to frame in stock location and not welded to the frame at all (can not make frame stronger in any way!
- You may cut the excess frame off the front rails but you may not move the front body mount. All body mounts must remain in stock location.


1. Floor Shift.
2. Locked rear ends.
3. Radiator fans.
4. Hand throttle – (Return Springs).
5. Leaf springs may have two (3) clamps per side, ¼ inch in thickness and not over 1-1/2 inches in width, with two (2) bolts per clamp. These cannot exceed the thickness and width stated. no more than 9 leafs per side.
6. Transmission coolers. Must be inside of car & covered. DOUBLE CLAMPED
7. Air conditioner radiator, one (1) only.
8. Safety gloves/glasses MUST be worn by all drivers.
9. Drivers door (only) may have a steel /metal plate inside the window area.
10. Mud screen allowed. and recommended
11. If dashboard is removed, side to side brace is allowed & recommended in dash position. (may not attach to the frame)
12. Fire extinguisher – mounted securely, accessible to officials & driver.
13. Engine, with tech official approval. No moving engine location!
14. A hose attached to the transmission filler tube (Burp Tube) for fire safety.
15. sliders shaft drivelines ok
16. engine cradles allowed cannot be welded to frame
17. distributor protectors allowed can not be attached to or within 5 in from dash bar!

Other Notes:

Questions contact: Jeremy Pratt @ 360.801.9623
Must sign waiver and release form day of race.
Social Security Number required for any payouts over $200.00
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