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Bomber Rules
Car Specifications:
1) Any American made
rear wheel drive car or full-size pickup truck, manufactured by: Ford, GM or Chrysler. No vans, four wheel drive or sport
utilities allowed.
2) Wheelbase minimum shall be 108 inches per manufacturers specifications.
Safety:
1)
The roll cage shall be constructed of minimum 1.75 inches outside diameter tubing with a minimum wall thickness of .095 inches.
Seat must be securely mounted to the roll cage. Roll cage shall consist of four-point center section and two “kicker
bars”. Kicker bars will extend from the cage center section and connect to the rear frame rails or trunk pan inside
the cars body. Kicker bars will extend no further than the rear axle on pickup trucks. No cross bracing, weight jacking or
any other reinforcing allowed. Windshield bars are required.
2) Three drivers side door bars are required, minimum.
Passenger side “Z” bracing required minimum, unless the car has a passenger seat then it shall be constructed
the same as the driver seat. Driver and passenger doors may be gutted as necessary to fit cage.
3) All glass and trim
must be removed. No additional gutting or removal of sheet metal or panels is allowed.
4) Five-point type harness required
with three-inch waist and shoulder straps. Must be securely bolted to the roll-cage. Harness shall be no more than five years
old according to the date code and be in good condition.
5) Aluminum seat required.
6) Drivers must wear Snell
95 or newer helmet, eye protection, complete fire suit, driving shoes; gloves and neck roll when on the track.
7) Battery
must be securely mounted in a box, Marine type or better.
8) Window net required on drivers side window opening. Securely
mounted screen required in front of driver.
9) Fuel cell mandatory. Must be located in trunk area, and mounted securely.
Trucks must use a metal enclosed fuel cell, mounted securely in bed area between the frame rails.
10) Driveline must
be painted white with car number on it. Driveline strap must be mounted on front third of drive shaft.
Drive train:
1)
Engines and related components must remain stock as manufactured. Blocks, heads, intakes and exhaust manifolds must be cast
iron. No porting or polishing of any kind.
2) Un modified automatic transmission mandatory. With a stock or O.E.M.
replacement torque converter.
3) Un-modified Rochester Quadrajet carburetor only. Stock four barrel intake only. No
spacers or adapters allowed. The top and bottom secondary butterfly plates must be disconnected and wired tightly shut.
4)
Engines must remain bone stock in all aspects. Must have stock or equivalent; flat top pistons, cam shaft and valve train.
5)
Unmodified single-track rear wheel drive only. No welded gears, spools, limited slip, Detroit lockers, posi-trac, shimmed
differentials, etc…
6) Front radiator hoops allowed.
7) Tech approved mufflers mandatory.
8) Stock
bumpers required to be chained to frame.
Frame, suspension, wheels and tires:
1) Frame will be unmodified. No
racing equipment allowed on suspension. Stock shocks are required in stock position with stock mounts. Unibody frame connectors
allowed.
2) Steel wheel only. Seven inch wide maximum width. No Beadlocks. The only tire allowed is D.O.T. Radial P205/70
on either a 14 or 15-inch wheel. Wheels must be same size all four corners. Tire Pressure minimum is 30psi on all four corners.
No grooving, Sipping or chemical treating allowed.
3) No Spray Bars for radiators allowed.
4) No additional
weight or ballast of any kind allowed.
5) Brakes must be functional on all four corners. No adjustable proportioning
valves. Emergency brakes must be removed.
6) The maximum allowed rear percentage weight is 48%.
7) Theme cars
are recommended for example cop car, tank, etc…
Tech Inspection:
1) Engine is subject to inspection at any
time, which may include removal of the following components; Carburetor, valve covers, spark plugs, intake and exhaust manifolds.
2)
Carburetor must have secondary butterflies wired shut tightly enough to not move at all to make the RPM rise. Idle screw will
be backed off and the engine must die. All intake air must enter engine through the primary venturis only.
3) Rear end
will be jacked up on the pupmkin with the engine off. The rear tires must turn oposite directions when they are turned by
hand.
Race Procedure:
1) This class will run their races in a variety of directions. The race officials will decide
the direction that the race will be run by pill form. The directions of racing will be clockwise, counter clockwise and figure
8. The figure 8 will only be for the heat races. The drivers will not know the pill draw or direction until they are lined
up and ready to race.
2) The track officials will also decide what type of start this class will have, for example
a typical rolling start, a stopped start, or maybe even a foot race to your car, get in, strap in, put helmet and gloves on,
start the car, drive to the other side of the track and stop in order, so driver can tighten belts and adjust safety equipment
as needed before racing.
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