Menu

Derby Rules

Get ready for derby night! Review the official Deep South Fair Demolition Derby rules, requirements and guidelines before you hit the arena.

Thomasville exchange club demolition derby rules

Modified build

General:

  1. All drivers and mechanics must sign a hold harmless agreement at time of entry.
  2. The driver must be at least 18 years old.
  3. Alcohol in pits means disqualification.
  4. Absolutely no children in the pit area.
  5. Drivers must remain in their seatbelts and helment at all times during the competition.
  6. Driver is required to wear a neck brace, helment, and eye protection.
  7. No intentional hitting in driver’s door.
  8. All cars must make contact with another active car within 60 seconds. Stalled or non- moving cars will be disqualified.
  9. No intentional head on collisions.
  10. No intentional hitting a non-flagged car.
  11. Judges are not affiliated with the exchange club and their decisions will be final.
  12. Numbers on both doors 12″ tall, or dual number plate on top of car.
  13. No full-size trucks, 4×4’s, imperials, or hearse allowed.
  14. Full fire suits required for any car running methanol fuel.
  15. All cars must have brakes.
  16. Officials’ decisions are final.
  17. Fire suits required for methanol.

Fenders / 1/4 PANELS

  1. (4) 3/8″ max bolts per fender/quarter panel with 3/8″ max store bought washers.
  2. 4 bolts, 8 washers, and 4 nuts per fender/quarter panel through sheet metal only.
  3. No added brackets or new factory bolt locations.
  4. If replacing factory bolts, use nothing larger than 3/8″ bolts/washers/nuts.
  5. May crease/pack/pre-dent rear quarters and fenders but no welding or doubling.
  6. If you use larger bolts and wahers, you lose the bolts and washers.
  7. Quarters must remain upright. No wedging

Hood

  1. 6 total attachment points.
  2. May use 1″ all thread through the front 2 body mounts (rad support mounting holes). This counts as 2 attachment points. The other 4 must be sheet metal to sheet metal with no larger than a 5/8 x 5″ bolt.
  3. All hood washers not to exceed 4″x4″x1/4″, flat or angle.
  4. (14)3/8″ bolts/nuts/washers may be used to secure webbing per header opening on hoods.
  5. Hood hindges must remain factory or removed.

Roof

  1. No seam welding or bolting unless specified.

Doors

  1. 4″ on 6″ offwelding on exterior seams. Must be individual 4″x4″x1/4″ plates.
  2. Please reinforce the drivers’ door on the inside or outside not both. The drivers door is the only door allowed. No more than 3″past the door seams and no thicker than 1/4″ steel.

Trunk

  1. 4″ on 6″ off welding on exterior trunk seam. Must be individual 4″x4″x1/4 plates
  2. Speaker deck must remain in factory location. Do not remove.
  3. 12″ hole in the top of the trunk lid. If we can’t see behind the wheels or above the frame rails, you’ll be asked to cut another hole.
  4. May be dished no more than 6″ in the center for visibility-this includes the speaker tray.

Rust

  1. Rusted area may be removed, 1/2″ overlap from new metal to old metal, new rust. Patches may not overlap. You must butt weld, using your stitch weld. Don’t stagger the welds on two patches to have one continuous weld between two patches.
  2. New metal not to exceed factory thickness.
  3. Must be welded 1″ on 1″ off- abuse it, you’ll lose it-zero tolerance.

Floor pan

  1. All rust repair stated in rust section applies.
  2. No doubling of floor pans.

Body mounts

  1. Replace with 5/8″ max size bolt. 5″ max length (top side frame to body)
  2. 3″x3″x1/4″ free floating washers may be use to secure the body to the frame.
  3. Must have 1″ minimum free floating individual spacers between the body and frame. 3″x 1/4″ max round or square tubing. No added body mounts. You may not relocate any of the factory body mounts.
  4. If you change the body mount you must maintaine the 1″ gap.

Windows

  1. Two 3″x1/4″ flat bar window bars in the front window only.
  2. Rear window bar can be no larger than 2″x2″ square tubing.
  3. 3″ of attachment on top and bottom.
  4. Window bar mounted within 3″ of window opening.
  5. Window bar cannot come in contact with halo, roof sign, or halo bracing.

Core support

  1. Fill the opening in front of the radiator with 1/8″ max store bought expanded metal.

1/8″stamped/cut radiator guard will be accepted. Must remain within the core support body mounts. May only be bolted with (8) 3/8″bolts and 3/8″ store bought washers max.

Spacers cannot exceed 2″x2″ tubing and 10″ long. No welding on core support spacers.

 

No seam welding on the core support.