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MIDWEST DEMOLITION DERBY ASSN., INC.
2007 RULES
These rules apply to all events associated with the Midwest Demolition Derby Association, Inc.Rules cannot be reproduced without their consent.All rules must be read and followed by all drivers, pit crew, promoters, judges, wrecker crews, and any other person(s) taking part in the derby.Any violation of these rules may disqualify the individual from further participation in the derby.
All cars must be at the derby site at least ONE HOUR before the advertised start time of the derby!
ANY CARS ARRIVING LATER WILL BE CHARGED AN ADDITIONAL $20 TO ENTER!
Section (A) General Car rules:
A-1.Any year, make, or model car may be used except convertibles and all wheel drives.Frame, suspension,and steering components must be same year, make, and model as body.
“Herby”cars – factory four cylinder w/103” wheelbase limit and must be a subframe style car.
“Midsize” – any factory four cylinder car; no wheelbase limitation.
“80+newer” refers to full size cars model years 1977 and newer for GM, 1979 and newer for Ford, 1979 and newer for Mopar.
A-2.All carpet, cloth, plastic, glass, headlights, taillights, grilles, mirrors, chrome and other such trim must be stripped from inside and outside of the car.This includes third row seats and/or compartment covers in wagons. Interior and trunk must be clean of all broken glass, loose screws, cans, etc.Exception: Driver’s door panel, kick panel, and b-pillar cover may be left in to protect driver from sharp edges underneath.Foam pads may be added around driver.
A-3.Cooling systems must remain stock; water and antifreeze only.No engine oil coolers.Transmission coolers ok.Fan blades may be altered or removed.Exception: Steele & Tappen will allow water barrels.
A-4a.Trunk lid/tailgate must be secured using either wire or chain.Four attachment points maximum(hinges/latch do not count as points).Trunk lid/tailgate cannot be attached to the trunk floor or frame.Must be mounted in stock location.
A-4b.Doors must be secured using either wire or chain.Four attachment points maximum (hinges/latch do not count as points). Chains/wires for the doors may be through the roof or around the frame. Hardtops will be allowed to manufacture a post of chain or wire from the top of the door to the roof, at the pillar or centered in the window opening.This will not count as one of the locations for the door(s).
A-4c.Hood must be secured with hood pins, chain, or wire.Four attachment points maximum (hinges/latch do not count as points).Hood chain/wire/pins may not wrap around or attach to the frame.Hood pins may be made of bolts or pins no more than 3/4” diameter and 12” in length.No angle iron hood pins allowed.No chain or wire in front of the radiator.Hood must be cut open in a manner to allow easy access for fire extinguishing; judges discretion.Hood must be mounted in the stock locationWashers for hood pins limited to 4”x4” plate.
A-5.Cars must have working brakes capable of stopping the car at the beginning of each heat.
A-6.Tires must be street legal DOT approved tires.No implement tires, studded tires, or tire skins.No tire in tire, no fillers; air only.No valve stem protectors.Washers between lug nuts & rim ok, no washers or spacers behind rims.
A-7.Exhaust that runs through the hood must point straight up or close to it.No bends at tips for front, rear, or side exit.
A-8.Batteries must be removed and placed within the driving compartment of the car.It is required that they be safely secured and covered.
A-9.Driver Safety:
·Windshield bars are allowed.Must be vertical with a maximum of two.May be bolted or welded in place but may not connect to or hold the hood in any way.
·Window bars or nets are allowed on drivers door.They may be welded or bolted in place and will not count toward attachment points for the driver’s door(if welded to rear door, count as attachment points for that door).
·Door bars are allowed.Pipe must be 2” to 4” diameter, ¼” wall.End plates must be no more than 6” wide, ¼” thick. Bar may be welded, chained, or bolted in.If bolted in, exterior plates cannot exceed 4” x 4”.Two attachments per side and will not count as points for the door(s).Bar should be placed as close to the back of the driver’s seat as possible and may not attach to the frame. Including both a straight cross and a diagonal to driver side rocker panel area is highly recommended (see diagram on back page). The straight across holds the driver’s side pillar out in the event of a door hit and the diagonal helps prevent ‘blowing out’ the driver’s side door pillar from a hard passenger-side hit.
·Dash bars are allowed.Same dimensions apply as specified for door bar.Attach in a similar manner.Steering column may not be supported by dash bar (factory hanger for steering column only).
·Door plate(s) allowed on driver’s door.May extend 4” past door seams.Must be flat plate; no I-beam, no C-channel.No more than 8” total height (two 4” plates ok for example).These do count as attachment points.
·Radiator overflow hoses must vent down, preferably under the car (at least under the hood).Barrels must vent under the car.
A-10.Gas tank must be boat or race car type tank; seven gallon maximum and must be placed inside car and be firmly secured.Original tank must be removed or have three visible holes at least 1” in diameter.No alcohol or methanol fuels allowed.
A-11.Car number must be visible from both sides of the car, preferably on the front doors or on a roof plate.
A-12.Any make engine/transmission allowed.Engine must remain in stock-style location forward of the original firewall; no setbacks.Mounts may be homemade and welded in, but may not protect any engine components or add metal to the frame rails forward of the factory engine or crossmember mounts (whichever is further forward).Herby cars – must be a 4-cylinder engine and the car must have originally been available with a 4-cylinder engine.
A-13.Any make rear axle allowed.Must be 4 or 5 lug car axle.Must be mounted in stock manner and location.No modification of trailing arms allowed and must be the stock arms.Leaf springs must use stock mounting points.Taller springs may be used within reason; judges discretion.U-joints may not be welded in place, but 2 tack welds may be added to keep u-joints in where injected plastic retainers had been used.Spider gears may be welded and lockers are allowed.Herby cars – original rearends only.
A-14.Suspension and frames must remain stock.All body mounts must remain factory and in stock locations.No chaining of suspensions, coil springs, or rear axle.No welding or rewelding of seams on frames.All hitches must be removed.
A-15.Any car bumper may be used, but must remain within family (GM to GM, Ford to Ford, Mopar to Mopar).Bumpers may be welded to the bracket.Bracket may be welded to the frame.Bumper shocks may be drilled, compressed, and welded.No additional filler metal may be added.May swap over shock horns, but only the shock horn.No part of the donor frame may be used!Bumpers must be mounted at the stock height and right-side up.If the bumper is not welded on, bumper chains are mandatory.
Exceptions:
Herby Derby cars – original bumpers only!!
80+newer events – any80+newer car bumper may be used, but must remain within family.Aluminum braces may be removed and the bumper then bolted or welded directly to the shock/bracket.Bolts must be stock size.
Section (B) Driver/Pit Crew rules:
B-1.Drivers must be 18 years of age or older with a valid drivers license.Any driver under 18 must have parents signature and valid drivers license.Drivers may be required to show ID day of derby.
B-2.All drivers and pitmen must sign a form releasing the Midwest Demolition Derby Association and the Promoting club/community from all liability.
B-3.All drivers must wear seat belts and helmet during the entirety of their heat.Failure to do so will result in disqualification.Drivers knocked out of the heat must remain in their car until the heat is over.Drivers may get out if in danger of injury (fire, gas leak, battery acid, hot fluids, etc.)
B-4.Each car will be allowed one driver and one pitman free.If driver is replaced, may be replaced with a pitman only but may not be a registered driver of another car from that day.Exception – a pitman running a ‘special event’ car such as a herby car can substitute in for the driver of a regular car.Scoring for season points stops w/driver change.
B-5.Alcohol or drug use by drivers and pitmen is prohibited and may result in disqualification.
B-6.Drivers must supply their own white flag or purchase one at the event for $10.
B-7.No one will be allowed around or in the arena except Judges and Safety Personnel.
B-8.No headsets are other audio/video communications are allowed in the cars.
B-9.Derby may be stopped at any time for safety reasons.In case of an emergency situation, all cars will stop immediately and drivers will remove their hands from the steering wheel and hold them up to indicate to the Judges you have seen them and acknowledge the stop.In case of a rollover, the car will be set back up and allowed to restart, barring any danger from fluid spillage.Each car is limited to 2 fires per heat.In case of third fire, the car will be disqualified. Driver’s safety is #1!
B-10.No driver door hits or deliberate use of the drivers door in an attempt to disqualify an opponent.Hits or reckless driving that the judges feel puts others at risk--in the arena, the pits, or surrounding areas, will result in disqualification, up to and including the remainder of the event.
B-12.Hangups – We will only pull apart cars when hazardous situations apply and to determine placement.Only active cars having made a mutual hit will be pulled apart.
B-13.Contact rule:“Contact” requires an aggressive attempt to hit and damage another car.Drivers will have 2 minutes to make contact.Hitting the brakes before contact or idling into another car is not aggressive and will NOT count as contact!If the Judge watching you isn’t convinced you intended aggressive contact within the 2 minutes, you may be counted out even if you’ve made multiple soft hits in that time!!Yes, it’s subjective.Your best bet?Don’t leave room for doubt in the judge’s mind.Contact rule will override fire rule with last two cars running.
B-14.Cars must be moving on engine power.Any car moving on battery power will be disqualified.
B-15.Out of bounds rules will be discussed at each event.
B-16.Disqualification may forfeit driver from placing in the derby.Judges discretion.
B-17.Yelling at judges will not be tolerated.Car may be disqualified from the heat or for the day.Individuals ‘out of control’ may be ejected from the derby site.If you have a dispute about a judge’s call, discuss it like a rational adult.
B-18.Drivers and Pit Crews are responsible for clearing all debris and garbage from their pit area.
JUDGES HAVE THE FINAL INTERPRETATION OF ALL RULES AND SAFETY CONCERNS.
IF IT’S NOT IN THE RULES, IT DOES NOT MEAN YOU CAN DO IT.
ASK FIRST!!
(give me a call – Greg @ 391-6582)
