updated
1-4-08
see
roll cage update
Click
for pdf
2008
Dixie Motor Speedway
Bombers & Figure-8's
This
class is intended to be an affordable, entry-level
division, with the emphasis on fun.
Rule
# 1- If this
rulebook does not say you can do it, DON’T
DO IT!! NO EXCEPTIONS!!
2.
Any American
made automobile with a wheelbase of 112” or more will be allowed to
compete. 4-door models and station wagons are encouraged.
3.
Car must
remain in its original form as manufactured. No alterations of any kind,
except for those specifically allowed in this rulebook. Removal of any
sheetmetal, frame or frame components is specifically not allowed. All
parts must be used as intended by manufacturer. Engine only may be
swapped, make-to-make, provided it was comparable to original engine.
4.
A 4-point roll cage of .095 min. wall tubing is required and must remain
within the interior portion of the car, anchored securely to frame.
Bracing may pass through front firewall to rear of
upper control arm. No bar may pass through
rear firewall. One straight brace (not to
exceed 1-3/4” dia.) is allowed to connect left and right front frame
horns only. A 1/8” x 18” x 36” steel floorplate is highly recommended under
driver. 1/8” x 24” x
24” drivers side steel doorplate is required. A 12” x 18” kick
plate to protect driver’s legs is recommended.
5.
Both bumpers
must be chained to frame for safety. Wrecker hooks of adequate size must
be installed in bumpers. Bumpers must be rounded on end.
6.
All Inner
panels must remain intact except driver’s side for door bar
installation. Doors must be
welded shut. Severely rusted panels must be replaced. Stock panels only,
no homemade sheet metal panels. Front inner fender wells must be removed
for fire safety. Body will be
free of all sharp edges and corners.
7.
Hood and
trunk must be accessible for safety personnel without using a tool of
any kind. Operational hood & trunk hinges with springs must be used.
Hoods must be pinned in front and open without use of tools.
8.
All glass
must be removed except for windshield which may be replaced by 1/8”
lexan only. No plexiglass allowed.
9.
All interior
must be removed. Dash covers, seats, headliners, etc. Exterior lights
and moldings must be removed.
10.
Safety Rules-
See “Safety” on page 3 of this rulebook.
2.
Battery
may be relocated to trunk,
Secured with (2) 1”metal straps min.
3.
Racing fuel
cell recommended. Fuel tank must be secured by (two) 1” metal straps.
Fuel tank may not extend below frame. No boat or plastic tanks allowed.
Fuel cell / fuel tank location and mounting subject to track approval.
Fuel lines may not be mounted lower than frame rails and may not pass
through driver compartment.
4.Tires- Street
radials only. No racing tires allowed. No 50-series tires allowed. No
soaking.
5.Rims
Any 7” max width, standard offset, steel wheel is permitted. No
“made for racing” wheels allowed. Wagon wheels and chrome rims, ok.
1” lug nuts required for safety.
6.Engines
Must meet OEM specs. .030 overbore, ok. No aftermarket or performance
enhancing components allowed. No roller components of any kind. Maximum
valve lift: GM engines- .410. Max compression-9.5:1. No porting,
polishing or gasket matching allowed. No stroker engines. Carbs must be
unaltered and stock for year, make and model. 400
CID engines must use
Rochester
2 bbl.
7.Absolutely
no machining or altering of engine components allowed.
8.No
port fuel injected engines allowed. Throttle body fuel injection, ok.
9.Heads
“Camel Back”, Vortec or aluminum heads not allowed. Any engine
component considered to be “high performance”, even if it is stock,
is not allowed.
10.
Aftermarket pulleys are not allowed.
11.
Transmissions Stock automatic only. No powerglides,
2-speeds or direct drives. OEM stock converter only. Must have working
reverse gear. Transmission cooler allowed in engine compartment only.
Transmission dip stick tube and top of transmission must vent into a
single overflow can mounted to front of firewall.
12.
Radiator Must have 1 gallon over-flow catch-can (or)
mount overflow tube at center of windshield in clear view of officials.
Aluminum radiator allowed.
2.
No aftermarket air cleaners, air filters or dress-up
items allowed. Air filters may
not exceed 4” in height. Valve
covers may be changed to allow for breather-type valve cover.
3.
Exhaust- Single exhaust only with
stock-type crossover. Sealed 24” x 2”OD pipe before or after
muffler. Cast iron manifold only. No center-dumps. Crimped,
stock-type muffler only. Exhaust system must not leak i.e. donut gaskets
etc.
4.
Rearends may be either open or locked (welded). Steel
spool is allowed. No posi-traction or ratchet-type rear ends.
5.
Stock OEM springs only. No racing springs allowed. No
spring blocks, spacers, shims, rubbers, cups or similar devices allowed.
Front and rear springs must be equal, side-to-side. Wheelbase must be
identical, left and right. No adjustable, aluminum or coil over shocks
allowed. No aftermarket steering components of any kind. OEM replacement
parts only. No altering of suspension components of any kind.
6.
Weight rule: 3550 lbs minimum. 52% max left side weight.
55% min front weight. Cars with 318 CID engines and under- 3450
lbs. Added weight must be mounted above frame rails with (2) ½” bolts
min, painted white with car number in contrasting color. IN THE INTEREST
OF COMPETITION, ADDITIONAL WEIGHT ADJUSTMENTS OR OTHER MEASURES MAY BE
IMPLEMENTED.
7.
Frame: No frame alterations of any kind except to
reinforce rollcage attachment points with plate or box tubing. ( This
will be closely monitored) Frame Height - 5” minimum, measured at
engine cross member.
8.
Trailer
hitches and similar add-ons must be removed.
9.
ADDITIONAL REQUIREMENT FOR FIG- 8’s - STRICTLY ENFORCED:
Minimum 3 right- side door bars
and 1/8” steel right side door plate, 24” x 24” min.
10.
If questions remain regarding these rules, contact
tech official or SEE
RULE NUMBER 1.
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