Demolition Deby |
The next Demo Derby and Figure 8 race is Thursday August 3, 2023 during the Ozark Empire Fair in Springfield, MO. For ticket and show info click here.
FREE Entry fee if you call and reserve yourself a spot by July 26 - 417-887-9400. $30 Entry fee if you wait until after July 26.
Times for Fans - Front Gates open at 5:30 pm and the show starts at 6:30 pm. Show will last 2 hours. Times for Participants - Pit Gate opens at 3 pm. Kid's Class participants need to arrive 3-4 pm for registration and vehicle inspection. Kid's driver's meeting at 5:30 pm. Kid's Derby at 5:45 pm. Adult driver's meeting at 6:10 pm. Show starts at 6:30 pm so be there by 5 pm to get entered and get through tech.
Guaranteed payout for each class in Springfield, Missouri on August 3, 2023: Bone Stock Derby Class (NEW for '23) - 1st - $1250, 2nd - $750, 3rd - $400, 4th - $250, 5th - $100 plus some awesome trophies to the top 3. Combine Derby Class - 1st - $1250, 2nd - $750, 3rd - $400, 4th - $250, 5th - $100 plus some awesome trophies to the top 3. Kid's Derby Classes - Age 3-5 is a class and Age 6-10 is a class. Everyone gets an award!
Pit Passes Pit Passes are for participants and their crews only and are $25 Adults and $10 Kids (3-11). Those can only be purchased at Pit Gate 9 starting at 3 pm.
Kid’s Derby Rules
General Rules for all Classes 1. If your car does not pass inspection or driver is unwilling to modify car to pass inspection, you will not run in the derby -- No Refunds Allowed!!! 2. No driver under the influence of alcohol will be allowed to drive. 3. Drivers must be 18 years old and have a valid driver's license. 4. Driver must wear a seat belt and full face helmet along with eye protection. 5. All drivers must attend the Drivers Meeting prior to the derby. 6. There is $300 protest fee and you must be a driver to protest. Only drivers from the feature may protest another car. Drivers must have cash in hand following the feature. All cars are subject to post race inspection. 7. All cars must be through inspection by 6:00pm. 8. Driver must have a fire coat or non-flammable jacket to wear during event. 9. DO NOT hit the driver's door! Sometimes this happens, but if it looks intentional or due to carelessness, you will be disqualified. Don't use your door as a shield, it may cause you to get disqualified. 10.No hot rodding in the pits, keep it at an idle. 11. Any open door or fire will cause disqualification. 12. No alcohol in the pits, if anyone is caught with alcohol, they will be disqualified, this includes the crew. 13. Any controversies will be taken up at the drivers meeting. 14. Drivers must make a hit every 60 seconds with visible damage or you will be disqualified. 15. Any movement under a red flag will result in an immediate disqualification unless asked to do so by official or track crew. This keeps the drivers that are exiting their vehicles, track crew, and officials safe! 16. Drivers must remain in a vehicle with helmet secured on until red flag or otherwise stated by the officials. 17. Do not read between the lines or look for gray areas!! These rules tell you what you can and cannot do! Any questions, give us a call. If it doesn't say you can do it, don't do it. Call first! 18. The judge's decision is final, no arguing the decisions made or you will be loaded immediately!! Questions? Call before you build! Bobby Arms 918-533-2417
Bone Stock Full size Rules
Car safety Seat belts must be worn and secured to car Cars must have at least 1 bar(chain, or #9 wire) attached to the center of the windshield to the fire wall to prevent the hood from entering the car. DOT approved helmet, safety glasses, long pants or fire suit,closed toe shoes or boots are required Radiator overflow lines must be pointed towards the ground and secured in place Headers must be pointed straight up only and must not face inside the car
Car building STOCK IS STOCK!!!!!! ( NO tilting,no bolt changes,no wedging,and no spring boosters!!!!) Car must remain stock height!!!! You can run any make, model, and year of car except for any Imperial, Imperial subframe cars, checkers or any hearse type vehicle All trash,glass,chrome, and anything that will protrude inside the car must be removed. You can remove the dash You can use a stock gas tank. If you move your tank it must be a metal tank and must be secured in front of the rear axle, properly secured and must not leak from tank or lines. 6 gallon tanks are allowed for the modified gas tank. Batteries must be moved inside the car and properly secured. You may only use 1 car type battery in your car. All hoods must have a 5x5 hole cut for inspection and to extinguish fires if necessary. Hoods must remain on hinges. Allowed up to 8 pieces of 3/8in chain to secure the hood. 6 pieces may be placed in hood to fender, 2 may be placed from hood to bumper, or you can use #9 wire. Trunks must remain on hinges, you can use 3/8in chain or #9 wire to secure the trunk lid. You can tuck 50% of the trunk lid. Motor swaps allowed but must be ford/ford chevy/chevy Bumpers must be stock!!! No pointys and no homemade. They can be secured with two 3/8inx8in all thread with 3in washers. You can use #9 wire along with bolting. Bumpers may be welded on for safety purposes only. No added metal!!!!! You can use 6 pieces of 3/8in chain per door or #9 wire to secure each door. You can weld drivers door shut and a channel strip 5x5 welded on drivers door only for added protection You can have a 4 point roll cage, seat and door bar. Seat bar must not exceed any further than 3in from the seat. Tires must be DOT approved!! No forklift or tractor tires!!! You can run headers Locking rear ends are allowed Frame notching is allowed but you are not allowed to weld the notches Questions? Call before you build! Bobby Arms 918-533-2417
Limited Weld Rules Car Preparation 1. All cars must be stock, unless modification is stated below. 2. All glass, plastic, chrome and interior must be removed before arriving at derby. 3. Station wagons must remove decking. 4. Tires no bigger than 15", no split rims, and no studded tires. Foam or doubled tires are allowed. Valve stem protectors ok. 5. Radiator must be stock in stock location. 6. All cars must have working brakes. 7. Gas tanks must be metal and mounted in back seat area with bolts or chains. 8. Transmission Coolers allowed must be mounted in back seat area. 9. Battery must be mounted in passenger seat area in floorboard. 10. Must have number painted on front doors. 11. Any American make sedan or station wagon can be run. No 1973 or older Imperials or Imperial subframes, 4x4, ambulances, hearses, trucks, limousines, etc. Car Building 1. No welding will be allowed on any part of body or frame unless stated. 2. Doors may be welded 5" on, 5" off. 3. Driver's door can be welded solid. 4. Driver's door must be braced no further than 6" front or back of door. 5. All cars must have at least a rear seat bar in order to run. 6. Dash bars are allowed nothing larger than 3" in diameter. 7. Cars may have a 4 point cage. 8. Halo bars are allowed must be welded or bolted to rear seat bar only. 9. Any automotive bumper and bracket on car. Can be welded to frame no added metal. 10. You can have 2 spots of chain or wire from core support to bumper. 11. Hoods must have 12" hole cut for fire protection. 12. You can have up to 6 hood bolts. Not larger than 3/4". 13. Core support bolts can go through frame only. 14. Trunk lids can be tucked. You can have 2 trunk bolts not larger than 3/4" and can go through top side of frame only. 15. Trunk may have additional 8 bolts sheet metal to sheet metal only. Nothing larger than 3/8". You weld 5" on, 5" off on trunk lid, 16. 5x5 washers max on all thread bolts. 17. Body mounts can be replaced with 3/4" max. No adding extra bolts. 18. Suspension must be stock. Leaf springs must be stock, no conversions. No adding springs, you can chain rear springs with one loop of chain. 19. Control arms must be stock and not reinforced. 20. Can use any passenger rear end. 21. Can use any drive train in any car. Motor mounts can be welded. No excess metal. 22. No rear end braces. 23. Front A-arms must be stock, no bolting, wiring, or chaining down. 24. Tie rods, ball joints must be stock. Aftermarket columns are fine. 25. Fenders may be trimmed for clearance. Can have 12 3/8" bolts. 26. Must have windshield bar or chain. 27. You may run chain from rail to frame rail behind rear end. 28. No distributor protectors or tranny protectors allowed. 29. Gas tank protectors are allowed must have 1" gap in sheet metal to protector. 30. You may run 2 loops of number 9 wire in 2 spots. 31. You may repair rusted metal with sheet metal only. 32. Pre run cars may have 4 patch plates per frame rail. Must have visible damage. Not larger than 4x4 (this will be strictly enforced). 33. You can run any automotive bumper on the car. Bumpers can be reinforced inside of bumper. 34. You can weld bumper and brackets to frame. You may run a piece of 3/8 plate for brackets no longer than 14" and no wider than 4". 35. Judges decisions are FINAL. 36. ABSOLUTELY NO FRAME WELDING EXCEPT WHAT IS SPECIFIED. YOU WILL BE LOADED THE FIRST PASS THROUGH IF YOU SHOW UP WITH A WELDED FRAME. Any questions, call before you build. Bobby Arms 918-533-2417
Combine Derby Rules 1. SEATBELT, HELMET, EYE PROTECTION AND FIRE EXTINGUISHER ON BOARD ARE REQUIRED! 2. NO DUALS OR REAR WHEEL ASSIST WORKING!! 3. Maximum horsepower 150HP. 4. Combine Reinforcement - Reinforcing iron is limited to ten pieces, any length, located anywhere on the combine except in restricted areas. Iron replacement can be any iron: angle, channel, or flat, as is limited to a maximum gauge of 2: x 2: 1/4". Iron spears or external iron used for aggressive action is prohibited. 5. No concrete in the platform auger. 6. No well casing can be used as a stiffener. 7. Rub bars may be place around the radiator or variable speed drives, but not the rear axle parts. 8. If a combine has suffered a broken piece (i.e. a tie-rod or axle) it can be repaired with iron to support the break. The added iron does not fall into the 10 piece limit, as long as the reinforcement is the same width as the broken piece. 9. Only two braces are allowed: one on each side of the header inside the front wheel. 10. Rear axle can be shortened, not braces between rear axle and frame. No bracing allowed around rear wheels. 11. One 1" angle iron allowed on steering arm. (Does not include bracing to keep headers at the required 16-20 inch height.) 12. Any number on iron pieces can be used for hydraulic stops for safety or any driver protection supports. 13. Straw Walker Housing must be cut off at back of rear crank. 14. Maximum header width is 18 feet. 14. UNLOAD AUGER MUST BE REMOVED. 15. ALL GLASS AND LIGHTS MUST BE REMOVED. (Do not break glass with hammer, remove it clean.) 16. A protective cage must be built to protect driver, possible several bars in the front and side of the driver. DRIVER MUST BE ABLE TO SEE BEHIND HIM/HER. 17. Grain tank extension must be removed. 18. Grain platform only (No corn heads). All reel and cutting edge parts must be removed. 19. All batteries must be secured in a box for protection from debris. 20. Fuel tanks must be secured in grain tank with caps that do not allow spillage for fuel should the combine tip over. (Vent could be used for "breather".) Maximum of 10 gallons in tank. 21. Water only in the radiators. 22. Calcium Chloride - Calcium Chloride must be removed from the machine's tires since it is considered an environmental hazard. 23. NO FLUID IN TIRES. Any questions, call before you build. Bobby Arms 918-533-2417
Mini/Compact Figure 8 Rules
Preparation of Cars Welding Exceptions Bumpers Hoods/Trunk 1. You may have 6 hood bolts or chains. Not larger than 3/4". Core support bolts may go through frame only. 2. You may have 4 trunk bolts not larger than 3/4" and only two may go through frame on the top side only. Fenders General
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