COWLEY COUNTY FAIR DEMO DERBY
WELD CLASS RULES
Friday, July 29, 2016, 7:30 p.m. Winfield Fairgrounds
$1,400 will be paid in prize money, $1,000 for first place, if at least 8 cars
participate, and a trophy will be presented to the winner. If 8 cars are not
entered by July 26 at 6 p.m., this weld class is cancelled and entry fees will be
returned. Additional entries may be taken provided the minimum 8 have been
received. A maximum of 20 cars will be received.
This heat will be run after the Chain and Bolt consolations.
You may enter both the Weld Class and Chain and Bolt Class.
No one under 18 years of age will be allowed to drive or be in the pit area.
IF YOU HAVE ANY QUESTIONS ABOUT THE RULES PLEASE CONTACT
Brandon Lowe (620-222-2888) or Tony Russell (620-222-4535)
2016 Demolition Derby Weld Class Rules
1. Any make of automobile, 1950 and up may be entered as long as the vehicle is not a pickup,
truck, or jeep. No four wheel drives, NO ambulances or hearses will be allowed. No trucks,
jeeps, convertibles, and carryalls.
2. All glass, chrome, name plates, pot metal, plastic, small grill pieces, and anything else that
might break off or fall off must be removed from car prior to entry on grounds. No wagon
decking will be allowed.
3. Concrete, metal plate, wood, foam and pins in the frame and doors will NOT be allowed.
4. The stock gas tanks must be removed. A maximum12x12x6=3.2 gallon gas tank must be
located in the rear seat compartment and fastened and covered securely. You must run a 3/8 fuel
line max, it must be run in the most direct route to the carburetor. If you run a fuel cooler it
cannot be any larger that 12x12x12 with a max of 6 wraps of 3/8 line. No other fuel supply will
be allowed. Judges decision is final.
5. Batteries must be moved to front seat compartment and fastened securely. Batteries and fuel
cells must be covered with rubber mat. No more than two automotive or marine batteries
allowed.
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6. Radiators and fans may be removed but not relocated. An electric fan may be mounted to the
radiator. You may run stock fan in stock location or run an electric fan on the radiator but not
both. You cannot use your heater core for a radiator.
7. Transmission coolers may be placed inside the car. Electric fans or ice may be used. Fan
must be covered with a guard.
8. Body mounts may be changed to 1 inch bolts or less. A 5” by 5” by ¼” plate may be used
inside the care as a washer on the top side of the body mounts. You can suck body to frame. Do
not weld body to frame. You may add 2 extra body mounts inside of car only. Rear humps
forward, not in trunk area.
9. Car trunk lids may be folded inside the trunk compartment. You cannot weld lid inside of
car. Must be able to inspect inside of the trunk to make sure nothing is welded.
10. Air conditioning condenser cores may be placed in front of the radiator. No other
reinforcement such as expanded metal may be used.
11. No tires larger than 16” allowed. A tire mounted inside of a tire is allowable.
12. WHEELS: No bead locks or screwed wheel. 16 inch wheels are allowed. ¾ ton rear ends
and must be 6 lug only. Only have 5 lug nuts total per wheel and o floater rear-ends allowed.
No solid wheels are allowed. You may run weld in centers but they must not be larger than a 9
inch diameter.
13. Air cleaner must be left in place. Air cleaner must be on car during inspection and while on
the track.
14. Firewalls must be covered with inter tube if there is a hole. Distributor protectors allowed,
must be attached to engine or transmission only, backside must be no wider than 12 inches. If
you run a Distributor Protector do no mount your dash bar closer than 6 inches from the back of
the distributor protector or tranny protector. Distributor protect can touch firewall. If you do not
run a distributor protector, you may run a kicker from frame to dash bar but can only go 4 inches
in front of firewall. Kicker can be no bigger than 1 inch and can only be welded on the top side
of frame. It cannot go down the side of the frame. You can have 1 kicker per side or a
distributor protector/tranny protector not both.
15. Modifications are allowed but the car must be running on gasoline. NO ALCOHOL or
Other fuel.
16. Coil spring rear end cars can NOT be changed to a leaf spring rear end. No main leafs may
be substituted for sub leafs. All cars my have a total of 9 leafs and can only be 5/16 inches thick.
You must also make sure you have a 2 inch stagger. You can have 4 extra clamps per side on
rear of leaf springs and they can only bee no bigger than 2 inch wide by 4 inch long by ¼ inch
thick. You can have 2 extra clamps per side in front of axle on leaf springs. You can have
factory twist in spacers in rear coils spring. You may weld the bottom side of the coil spring to
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the spring pocket. You can stuff upper and lower control arms on coil spring car or use 2x2
square tubing 1/8 thick for upper and lower control arms. Watts-Link Conversions – You may
convert a Watts-Link Ford to a Standard GM rear end in the following way: Use the trailing arm
brackets off an older Ford of the same size and thickness. No positioning of the brackets to
strengthen the front down leg of the rear hump. You may cut out the coil spring frame tray from
an earlier Ford and weld it in the newer Ford. When welding only one pass ¼” maximum no
stronger than stock. No added metal in the conversion, it must be clean or you will load it. No
homemade bracket will be allowed. You may chain rear differential to the floor or humps. (3/8
chain max.) NO PINNING anywhere in the frame. If found you will be disqualified. May tie
frame rails together at rear end with a 3/8 chain. (no further forward than axle hump)
17. Rear-ends: You may brace the back housing but cannot have axle protectors.
18. You may reinforce tie rods with a 3/8 by 8 inch rod, no modification of A arms, leaf springs
and coil. This means you can swap out A arm for A arm but you cannot reinforce A arm with
added metal. A-arms can us (two) 5/8 bolts per A-arm or you can use (two 3/8 chains per AArm per side to hold down the a-arm. You cannot bolt and chain one or the other. You can have
factory twist in spacers in front coils.
19. A fire extinguisher must be placed in car and securely mounted within easy access to the
driver.
20. You may place slogans and/or advertising (no obscenities) anywhere on the car. You must
put car number upright on the roof of the car. Minimum size of number will be 12 inch.
21. All cars must have working brakes.
22. No paint or undercoating allowed on frames.
23. You can pre-fold body but you cannot weld. This means do not create your own seams and
weld.
24. You are allowed to tilt. You must tilt at the A-piller, no further back than 6 inches from
firewall and not further forward than 6 inches in front of firewall. (You are allowed to cut the
frame at the box, pull it down, and re-weld it.) You may tilt frames but you may only use 12
inches of weld per side. No homemade gussets will be allowed. No added metal will be allowed
in the tilt cuts weld only.
25. In 2003 and newer Fords, do not change out the aluminum cross member. It must remain
stock. You can change steering components but they must not weld to the frame, bolted in with
no modifications.
26. K-frames must leave one ear up. With Y-frames, you can close the gap with a 1/5 inch thick
plate but must have ½ hole for scoping.
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27. All cars must have a ½ hole per side behind core support in front of Arms in frame and (1)
HOLE BEHIND THE A-ARMS IN FRONT OF THE FORWARD BODY MOUNT per side for
a scope inspection hole. It can be a stock hole or you will drill a hole for us. If you show up
without one you will not run.
28. No Frame Pinning and No Frame Lacing. Nothing will be allowed inside of the frame.
29. All framed holes must be open, no welding shut or washers added!
DERBY RULES
1. One driver door hit is a warning unless it is intentional. Second door hit and you are out.
Don’t use driver’s door as a shield or you will be called for sandbagging. Judges decision is
final.
2. Mandatory: You must wear long pants and a shirt. (fire suit recommended)
3. No alcoholic beverages or drugs are allowed in pit area or on the track.
4. Any car with gasoline or oil spilling or leaking will be disqualified from heat.
5. Drivers must remain in their cars until the event director has declared the heat is over, except
in the case of a fire. Helmets must be on at all times while in the arena.
6. When the call goes out for the heat, driver is responsible for being on the track in 2 minutes or
he will be disqualified.
7. Helmets with face shields or helmets with goggles must be worn at all times. Seat belts
and/or shoulder harness must be worn at all times. If removed during show, your flag will be
broken.
8. Any door that comes open will be disqualified.
9. Driver must make a hit within 1 minute.
10. If car catches fire during the heat, will be disqualified.
11. Note: Management does have the right to disqualify a car/driver at any time. Any
person on the track or in the pit, causing trouble and not complying with the rules, will be
asked to leave. (We can have you escorted off or have you arrested and banned from
running future derbies.)
12. Since this is a one heat event, no protests will be accepted.
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DERBY RULES**WELDING EXCEPTIONS
1.. The only welding on the frame is from the transmission cross member forward and can only
be ½ inch wide weld. Top and bottom seams only. DO NOT use any filler or strap for welding
top and bottom seams. Do NOT weld anywhere else on the frame unless stated. Do not X
frame. No welding will be allowed inside of cars. If a car is brought in with welds, you must cut
all the way through and no slobbers allowed.
2. The hood must be securely bolted with a maximum of six (6) all threads not to exceed one
inch in diameter (must be able to open). The only bolts or all thread allowed to go through the
frame are the two located at the radiator core support. All other bolts or all thread must be sheet
metal to sheet metal only. Hood washers may not exceed 3/8 inch thick by 5 inch square. Two
bolts or all thread (not to exceed 1 inch in diameter) are allowed in the trunk and can go thru
frame. Trunk may be chained around rear bumper but must not go around the frame or rear axle.
Trunk and doors may be securely welded on the outside only. You can fold top of doors down
and weld together. No added material used. You cannot weld on hoods. You can use 20 bolts
which can be 3/8 bolt with 1 inch O.D. washer to reattach braces to hood.
3. Holes must be cut in hood, (a min. of (2) 6” by 6” each). A 12” hole must be cut in trunk.
4. Trimming the body for tire clearance allowed (a maximum of Ten 3/8 inch bolts per wheel
well with a maximum 1 inch O.D. washer) will be allowed. You may cut and weld rear fender
wells also. You may not do both. You may bolt or weld.
5. A safety bar may be welded or bolted behind driver’s seat, not to exceed 5 inch in diameter.
Bar may extend from door post to door post. A four point internal side cage (includes dash bar,
1 side bar per side, and bar behind seat) will be allowed. Side bars must not extend further than
8 inches behind rear edge of front door. Side bar cannot be bigger than 4 inches. You may also
run a kicker from the door bar down to the floor or frame. Do not extend any further forward
than the front door seam, between the dash bar and seat bar, on both sides. You may connect the
rear halo to the frame but cannot go further back than 8 inches from the rear seam of the front
door. Gas tank protectors can be used but can only be 14 inches long. It must be 3 inches or less
in diameter and must be 3 inches away from untouched sheet metal behind and under gas tank.
You can either go forward or angle and tie back into seat bar.
6. Driver’s door must have reinforcement brace on inside or outside of door. Driver’s door bar
on the outside can be bolted or welded and may only go past the driver’s door forward seam by
12 inches. Foam may be placed in driver’s door area to protect driver.
7. DO NOT install extra weights, trailer hitches, special lift kits, or any reinforcement except as
set out in rules. No modifications of suspension allowed. Shocks may not be altered but you can
have after-market coil over shocks. No homemade shocks.
8. 2(Two) bars or chains must be welded in where windshield would be. The windshield
protector will not be used for reinforcement. These bars must remain 6 inches from the outside
of the farthest edge of the distributor protector.
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9. Door seams, trunk lid seams, and wagon gate seams may be welded with 3” by ¼” strap or
with ½” rebar (in line with the seam). You cannot over lay material anywhere on the car.
Smaller material may be used. Only outside seams may be welded.
10. A maximum of (2) straps 2” by ¼” can be welded from front bumper to core support. A
maximum of (2) straps 2” by ¼ can be welded from rear bumper to trunk lid. All straps on the
front and back must be placed vertically. They can only be welded to bumper 6 inches and 6
inches to the deck lid and 6 inches to the core support.
11. Factory bumper mounts may be welded to the frame without using filler material. You may
only weld 12 inches back from core support on front shocks and 12 inches forward on rear
shocks from edge of frame.
12. Shock bumper mounts may be welded without using filler material. You may only weld 12
inches back from core support on front shocks and 12 inches forward on rear shocks from edge
of frame. No homemade Pontiac bumper brackets will be allowed.
13. Bumper swaps are allowed, Chevy to Ford, Chrysler to Chevy. You may load the front and
rear stock bumpers with (ONE) 2 3/8 pipe only or you can plate the FRONTSIDE of the bumper
with a (ONE) 5 inch wide and ½ inch thick plate from bumper end to bumper end. You can have
one or the other. No concrete or wood. NO OTHER METAL WILL BE ALLOWED ON OR
IN THE BUMPER. IF SO, YOU MUST CUT OFF ALL EXTRA METAL BESIDES THE
STRAPS THAT GO FROM THE BUMPER TO THE CORE SUPPORT. You must leave ends
of bumper open for inspection. You may hard nose the front bumper to frame the Front bumper.
May have a 6x6 and ½ inch thick plate welded to the bumper and also to the frame. Homemade
bumpers will be allowed but can only be built this way: You may have a 4x6 square tubing and
can be ¼ inch thick side walls. You cannot fill in square tubing. Bumper ends must be left open
for inspection. The length of the bumper cannot go past the outside of the front tires. Do not
cover this with an existing chrome bumper. Your homemade bumper cannot be built any other
way. A homemade Bumper must be flat no point.
14. Bumper skin may be cut and folded down and welded. Cannot relocate cut off bumper
scraps. You are not allowed to remove or reposition bumpers in any way.
15. Motor mounts may be welded as long as it does not reinforce frame. You can only go
straight down and do not extend out. No added metal.
16. Pre-run cars may patch a hole in the door skins of the car, but not replace the whole side of
the car. If you patch a hole you must use sheet metal no greater than the sheet metal that makes
up the original car body. This patch may overlap the outside of the hole 2”x4” don’t push your
luck.
17. You can weld main leaf mounting brackets to prevent them from coming unbolted. Rearend control arm may be shortened or lengthened, but must be rewelded. You can weld coil
springs at the base. (so they don’t fly out).
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18. The steering column form steering wheel to gearbox may be altered.
19. Welding machines and torches will be allowed in pit area.
20. All cars may have plates welded to the frame and you may have 6 total plates (4x6) and can
be ¼ inch think. Maximum 6 plates per car fresh or used. Max of 3 per frame rail. You
must leave an inch between welds on plates. This means you cannot butt plates together. If you
have a pre-run car and you already have 6 plates and you have to add another plate, you mush
completely cut one plate off to add another plate. The plates can only be welded on the side of
the frames. No welding the plates on the top and bottom of the frame. ONLY 6 plates total. Not
going off square inches. 6 max 4x6 plates.
21. You may weld the core support and inner fenders to outer fenders. DO NOT USE ADDED
FILLER. WELD ONLY.
22. Sedagons are allowed but you are not allowed to weld the top post to the bottom post. You
can only tuck roof inside of car and must have a 12 inch inspection hole.
23. Do not open up any of the crush boxes and plate or even bolt inside of the crush box.
24. We will have a cheat sheet on the thickness of the frames in certain locations. If frame is
determined to be thicker, load it up. Do not fill any hole on the frames unless it is behind a plate.
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