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CAR DERBY RULES ||
TRUCK DERBY RULES
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2008 Demolition Derby
Rules - Car Specifications
NOTE: In 2008, WGAS Motorsports will no longer have a seperate,
specific set of rules
for events in the state of Oregon. All
competitors will use one set of rules, found below.
These rules are designed as a guideline for fair competition and are
not designed to assume safety liability. WGAS Motorsports and their
agents assume no responsibility for liability regarding these rules
and their use.
CLICK HERE
TO DOWNLOAD RULES IN .PDF FORMAT
(Right-click, "Save
Target As" to Download)
NOTE * The only
change for 2008 is on our bumper rule-
Makes and Models may be swapped - (automotive only) - however the
brackets must be of that vehicle.
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 officials 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 full frame Imperials. Unitized body Imperials are
okay. 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, welds cannot
exceed one foot (12 inches) on any one side, top or bottom of all
doors. Welding example: 1-12 inch weld, or 2- 6 inch welds with a gap
separating them, or 4 – 3 inch welds with a gap between the welds.
Weld not to exceed four, (4), feet per door total. All chains on
vehicles must be at least a minimum ¼” inch chain and a maximum of ½
inch chain. No chain can exceed 3 feet in length anywhere on the
vehicle.
3. A behind driver, safety bar is mandatory and may be welded
or bolted behind drivers seat from side to side. A safety bar on
drivers 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 18 inches behind the driver’s
seat. 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.
4. Trunk lids may be chained and bolted. Maximum bolt, 1 inch
in diameter – maximum washer size, 3 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.
5. Hoods: Bolts or chains or all threads through hood to frame
or wheel well are OK. Maximum of (6) six chains. You must have a
minimum 6 X 6 inch hole cut in hood for fire safety. Through hood
exhaust is OK.
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. Impacts are OK.
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. No raising or lowering of car. Cars must be in stock
position. Bumper height will be measured by officials and must be
within factory specifications. 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 tape or
welding on springs. OEM shackles only. Previously run derby cars with
broken springs or shackles can be repaired during the day of the derby
only, and supported by chains around or through the frame, and only
with two (2) bolts.
10. No trailer hitches. No objects protruding outside of car.
No severely pre-dented cars. No per run, severely dented cars. 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. NO 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 must 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 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.
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. Body to frame hardware and bushings must be OEM Stock.
Frames must be in OEM condition on any/and all vehicles.
19. Must remove inside spare tire compartment lid and all
seats, except the front seat from station wagons.
20. No grooved or double tires, no farm tires, regular
automotive tires must be used, not to exceed 8 ply (7.00x15) No
cement, hoops, liners or fluids in tires. Water is OK. Tire rating
must be clearly legible on tire.
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.
22. No pre-dented or mangled automobiles. Officials may not
allow severely dented or bent cars.
23. A vehicle discharging heavy smoke after an event has
started may be disqualified. Official’s discretion.
24. TIME LIMIT: If you do not move or hit within two minutes or
less you may be disqualified.
25. All vehicles must tech to the 2007 Rules – Previously run
cars included. Note: OEM means original equipment of the manufacturer.
VEHICLE OPTIONS:
1. Floor Shift.
2. Locked rear ends.
3. Radiator fans.
4. Hand throttle – (Return Springs).
5. Springs may have two (2) 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.
6. Transmission coolers. Must be inside of car & covered.
7. Air conditioner radiator, one+ (1) Only.
8. Safety gloves should be worn by all drivers.
9. Drivers door (only) may have a steel /metal plate inside the window
area.
10. Mud screen allowed.
11. If dashboard is removed, side to side brace is allowed &
recommended in dash position.
12. Fire extinguisher – mounted securely, accessible to officials &
driver.
13. Engine, with tech official approval.
14. A hose attached to the
transmission filler tube (Burp Tube) for fire safety.
2008 Demolition Derby
Rules - Truck Specifications
These rules are designed
as a guideline for fair competition and are not designed to assume
safety liability. WGAS Motorsports and their agents assume no
responsibility for liability regarding these rules and their use.
CLICK HERE
TO DOWNLOAD RULES IN .PDF FORMAT
(Right-click, "Save
Target As" to Download)
All Trucks will be inspected before the derby by track officials. All
truck hoods will be opened for Inspection. All winning trucks 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 trucks. Drivers can be scored down or disqualified, if they
have not complied with the derby rules and /or the officials decision
in tech inspections. No additional welding will be allowed on any
vehicle following tech.
- The Derby is open to any American made ½ or 3/4 ton truck, two
wheel drive only.
- No 4X4, super duty, king cabs, one tons or dual wheels.
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. All car preparations
must be done prior to coming to the event.
2. Doors and tailgate must be chained and welded shut securely, welds
cannot exceed one foot (12 inches) on any one side, top or bottom of
all doors. Welding example: 1-12 inch weld, or 2- 6 inch welds with a
gap separating them, or 4 - 3 inch welds with a gap between the welds.
Weld not to exceed four, (4), feet per door total. Bottom of tailgate
may also be secured by bolting or welding a piece of angle iron on the
inside where the tailgate meets the bed. Angle iron can be no longer
than 24" and be no larger than 3" X 3" X 1/4" thick. If bolts are used
they cannot pass through the frame. Sheet metal to sheet metal only.
Outside vertical seams of tailgate can be welded. If plated it cannot
be wider than 2" and 3/16" thick. Inside vertical seam can also be
welded but no plating can be used. All chains on vehicles must be at
least a minimum ¼" inch chain and a maximum of ½ inch chain. No chain
can exceed 3 feet in length anywhere on the vehicle.
3. A behind driver, safety bar is mandatory and may be welded or
bolted behind drivers seat from side to side. A safety bar on drivers
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 and the back of the cab behind the driver’s seat. The
safety bar and crossbar bracing cannot exceed 6 inches in diameter.
Window post to window post bracing is allowed and a box (cage) design
is recommended. Kickers from 4 bar enclosure to frame are allowed.
Rear kickers must be straight down (vertical only). Front kickers may
angle forward but not to exceed 6" through firewall. You may use bars,
pipes or angel iron to build this rectangular safety zone and kickers.
Material used can be no larger than 4" in diameter.
4. When replacing body mount bolts, they may not exceed 5/8" in size
and cannot extend more than 1-2" past the nut. No extra body bolts may
be added. Washers and plates are limited to 3" in diameter unless
repairing rust holes. You may use same thickness of material and
repair up to 1 inch larger than rusted area. This goes for body and
frame alike.
5. Truck cab and bed can be bolted together in 4 places. The bolts can
be no longer than 1" and the washers 5". The truck bed can be welded
to the cab, bed sides only - (3/16" thick by 6" wide straps / plates
max).
6. Hoods: Bolts or chains or all threads through hood to frame or
wheel well are OK. Maximum of (6) six chains. You must have a minimum
6 X 6 inch hole cut in hood for fire safety. Through hood exhaust is
OK.
7. 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.
8. Bumpers are required, both front and back.. Bumpers must be OEM
stock. Rear bumpers cannot be used on the front. However, stock flat
type bumpers may be used on front and rear. 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 wrapped, backed or
reinforcing of bumper. Automotive makes may be swapped. - brackets
MUST be of that truck. Impacts are OK.
9. No chains or U-Bolts allowed around body to frame on any truck. 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.
10. No raising or lowering of truck. Trucks must be in stock position.
Bumper height will be measured by officials and must be within factory
specifications. Maximum height from ground to bottom of bumper not to
exceed nineteen, (19), inches. No coil to leaf conversions. Only stock
springs. No extra leafs, no tape or welding on springs. OEM shackles
only. No stiff suspensions, lift kits, spring blocks, revered shackles
or working air shocks allowed. No more than eight leafs per side with
4 clamps (2 front & 2 back). Leaf springs must be stair stepped at
least 2' down from the main. No main over main or short stacking.
11. No trailer hitches. No objects protruding outside of truck. No pre
run, severely dented trucks. If officials determine that a truck is
unsafe or unfair it will not be allowed to run.
12. Gas tanks must be a safe container and made of steel. Example:
Jeep can, boat tank or fuel cell- not to exceed 5 gallons and must be
approved by an official. NO PLASTIC containers. It cannot be placed
inside the cab. It must be mounted directly in the center of the bed
behind the cab on a fuel tank plate. The plate must be mounted to the
bed floor from frame rail to frame rail. It can not pass the frame
rails, be more than 18" wide or ½" thick. It must be bolted through
the frame at the 4 corners. The tank must be securely mounted to the
plate and covered with an non-absorbent material. Sides my be added to
the plate to form a box if desired. If equipped with an electric fuel
pump you must install a switch on the dash area with-in easy reach of
WGAS safety officials. Stock gas tanks cannot be used and must be
removed from the truck.
13. Batteries must be removed from engine area and moved to the inside
of truck 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. Only one battery.
14. Radiator must be stock automobile and in original stock position.
No additional radiator supports or mounts, only wire or plastic ties
may be added. No water inside of truck.
15. Firewall must be stock with no large holes, all holes must be
covered.
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. Body to frame hardware and bushings must be OEM Stock. Frames must
be in OEM condition.
19. No grooved or double tires, no farm tires, regular automotive
tires must be used, not to exceed 8 ply (7.00x15). Wheels can be up to
17 inches, 33 inch max high tire. No cement, hoops,
liners or fluids in tires. Water is OK. Tire rating must be clearly
legible on tire.
20. Truck 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.
21. A vehicle discharging heavy smoke after an event has started may
be disqualified. Official’s discretion.
22. If you do not move or hit - you may be disqualified.
VEHICLE OPTIONS:
0-1. Floor Shift.
0-2. Locked rear ends.
0-3. Radiator fans.
0-4. Hand throttle – (Return Springs).
0-5. Transmission coolers are allowed inside the engine compartment
and inside the cab. If placed in the cab they must be covered or
sealed in a container or have a barrier between it and the driver. It
must protect the driver from being sprayed in case of a leak.
0-6. Air conditioner radiator, one+ (1) Only.
0-7. Safety gloves should be worn by all drivers.
0-8. Drivers door (only) may have a steel /metal plate inside the
window area.
0-9. Mud screen allowed.
0-10. If dashboard is removed, side to side brace is allowed &
recommended in dash position.
0-11. Fire extinguisher – mounted securely, accessible to officials &
driver.
0-12. Engine, with tech official approval.
0-13. A hose attached to the transmission filler tube (Burp Tube) for
fire safety.
* OEM = original equipment
of the manufacturer.
Thanks to Morrow County
Fair, Mt. Gilead, Ohio for the rule guidelines.
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