| 1) Safety: Approved driver's
side window net with quick-release mechanism attached to
roll cage is mandatory. Driver must be able to
enter/exit through both door window openings. Driver
must be able to see out rear window. It is mandatory
that driver's helmet meet 1985 snell or more recent
standards, and that drivers wear driving suits of fire
resistant material that effectively covers the body from
neck to ankles and wrist. It is highly recommended
that drivers wear complete full coverage fire resistant
underwear and mandatory full coverage fire resistant gloves.
All cars will be equipped with a 3 inch wide seat belt, two
piece shoulder harness and crotch strap with metal-to-metal
central release. It is mandatory that all drivers use
safety neck brace (horse collar). This system must be
located directly behind driver's head with driver seated
normally. 5# minimum fire extinguisher is mandatory.
All cars must be equipped with a working starter. 2)
Battery: Must not be located in the
driver's compartment.
3) Brakes: Working disc brakes
mandatory on all 4 wheels. Steel rotors mandatory.
No brake floaters allowed.
4) Carburetor: 1 11/16" #4412
Holley - 2 bbl on cast iron or aluminum intake. A
maximum of 1" thick carburetor adapter plate.
5) Clutch: Cars not having a
reduce-diameter racing clutch assembly must have a steel
scatter shield.
6) Drive Shaft: Metal straps, a
minimum of 2, are to be located at the front and rear of the
driver shaft to prevent it from dropping onto the track.
Driver shaft must be painted white.
8) Exhaust: Manifolds or
headers. Mufflers mandatory - 100 decibel requirement.
7) Engine Size and Location: Engines may be
interchanged. Number 1 spark plug must be in line with or
ahead of upper ball joint (+ or - ) 5“. No aluminum
blocks. Oil pump internal (inside) of engine.
Aftermarket oil pans allowed. 0” - 5” max. motor set back.
No dry sump systems. No aluminum heads in limited late
model cars. 360 inch maximum displacement.
9) Firewall: Sealed firewall
mandatory.
10) Frame: A minimum wheelbase
of 102". A North American factory production front
stub which incorporates a lower and upper control arm in it
design. Body style does not have to match front stub
section. The front frame section must remain stock to
the eye and stock dimensionally with only approved
modification. "Front frame" is defined as the main
frame that is 21" behind the center of the front spring and
forward of that point. Lower A-frame mounts must
remain in stock position.
11) Approved Modifications:
- Clearance for the fuel pump.
- Clearance for changing springs.
- Clearance for steering shaft.
- Upper A-frame mounts may be changed to
accept tubular A-frames.
- Stock motor mounts may be replaced
- Stock stabilizer mounts may be replaced
- Load bolt mounts may be installed.
- Cross member may be altered between the
lower A-frame mounts for oil pan clearance only.
Rear may be fabricated of 2"x2"
minimum, 2"x3" recommended, minimum .095 thickness.
ANY DEVIATIONS FROM THESE RULES
WILL BE SUBJECT TO WEIGHT PENALTIES! |
12) Fuel Pump: No
electric pumps allowed.
13) Tires: Must
run all 4 tires the same - American Racer P265-60 or
P60-265, 8" tires. American Racer 27.8 and 26
5/8" tires No soaking of tires allowed.
14) Fuel System:
Gasoline only. No Nitrous Oxide systems allowed.
Fuel cells mandatory - must have steel containers.
Fuel cells minimum 8" ground clearance. No fuel lines
within the driver's compartment. Gas caps secured by
means of chain to the car.
15) Windshield:
Full windshields and full rear window mandatory. No
plexiglass. No mirrors allowed.
16) Hoods: Must be
securely fastened. There must be two (2) hood pins
across the front. Subject to track inspection.
Air cleaners are mandatory.
17)
Ignition:
Factory style electronic ignition system only. No crank
trigger systems allowed. No multiple coils. Magnetos
allowed. MSD Factory style system allowed.
18) Radiators: Any
type may be used providing it does not alter the hood or
body sheet metal. All radiators must be mounted in
front of the engine and must not protrude through the hood.
Over flow catch can is mandatory.
19) Rear Axle:
Quick-change rear-ends allowed. Floaters recommended.
20) Roll Cage:
There must be four (4) bar cage, minimum, with three (3)
bars, minimum, across the driver's door that must be tied
together in the center. Driver's door must have a
24"x24"x1/8" steel plate mounted outside bars between roll
cage and door skin and mounted in such a way as to protect
the driver's body. There must be a minimum of one (1)
bar on the passenger side. No less than 1 3/4" O.D.
tubing, .095 thickness for entire roll cage. NO
TOLERANCE - NO GALVANIZED PIPE. Car must be equipped
with front and rear frame hoops of 1 1/2" O.D. minimum size
ahead and behind driver's compartment.
21) Shocks: One shock per wheel - racing
shocks are allowed. No air shocks allowed. Coil over shocks
allowed; aluminum shocks allowed.
22) Starters: All
cars must be equipped with a starter that is in good working
order at all times.
23) Suspension: 5"
and smaller spring. Tubular upper A arms optional.
No driver operated weight transfer devices allowed. No
aluminum A-frames or spindles allowed. Rack and pinion
steering allowed. Lower A arm OEM only - must be
mounted OEM style. No traction control devices.
ANY DEVIATIONS FROM THESE RULES ARE
SUBJECT TO WEIGHT PENALTIES AT TRACK OFFICIAL'S DISCRETION!
24) Transmission:
Any transmission, manual or automatic. All cars must
have operation reverse gear and a minimum of two forward
gears.
25) Wheels: 8"
steel wheels, reinforced or made for racing. Wide 5's
are allowed. Aluminum center hubs allowed.
Aftermarket hubs allowed.
26) Wrecker hooks absolutely
mandatory, front and rear.
27) Weight: Added
weight must be in plain sight, painted white and have car
number on it in a contrasting color. No cement,
mercury or liquid style weight. Weight must be mounted
with a minimum of two (2) 1/2" bolts and nuts and must be
attached to car securely. No driver operated weight
transfer devices allowed.
28) General Body Rules:
Bodies must be neat appearing. Driver must be
separated from engine, fuel cell and fuel and oil systems by
metal firewall. Floor pan in driver's compartment must
be steel and welded in. No rudders or sideboards.
No flat side or roofs. No square corners. No 90
degree panels. Numbers of a color contrasting with
that of the car will appear on both doors and will be 18"
high with a minimum 4" stroke.
| Deck lid
length............................................................................... |
Max. 23" |
| Leading edge of roof to bottom
of rear window.............................. |
Min. 77" |
| Height of side window
opening....................................................... |
Min. 14" |
| Width of side window
opening....................................................... |
Min. 22" |
| Roof width (side to
side)................................................................ |
Min. 46" |
| Width of body at front tires and
rear
tires........................................ |
Max. 78" |
| Width of body at back of rear
quarter panels.................................. |
Max. 70" |
| Flat spot on top of body at
front windshield and rear window post - flat
spot on top of
doors................................................................. |
Max. 3" |
A minimum of 13" of the side panel and/or
rear window of the roof must run parallel to the door; after
that point it may begin a uniform radius matching that of
the rear window and meeting all other diagrammed dimensions.
| Air
deflector.................................................................................. |
Max. 2" |
| Nose
angle.................................................................................... |
Max. 30 degrees |
| Height of back of rear quarter
panels to ground.............................. |
Max. 35" |
| Center of front hub to front
nose
piece/spoiler................................. |
Max. 43" |
| Ground clearance of nose piece &
between tires & frame............... |
Min. 3" |
| Height of roof to ground (10"
from front & back)............................ |
Min. 46" |
| Center of rear hub to back of
rear quarter panels............................ |
Max. 45" |
| Ground clearance immediately
behind rear tires............................... |
Min. 8" |
| Ground clearance at the rear of
the quarter panel............................ |
Min. 14" |
| Height of top of rear spoiler to
ground............................................ |
Max. 40" |
29) Deck Lid:
The top surface of the deck lid must not be dished.
There should be no area of deck lid lower than the
height at the top of the quarter panels.
30) Fenders: A
minimum of 1/2" radius is required on the tops of the
fenders. No 90 degree breaks permitted. The
rear fender flap immediately behind the rear tire must
gradually angle up from a minimum 8" ground clearance to
minimum of 14" ground clearance at the rear to the
quarter panel. Width of rear fenders must
gradually taper from the body width at the tires to the
width at the rear spoiler. (No straight quarters
with an abrupt kick in just before the rear spoiler.)
31) Front Nose:
A complete, unaltered, stock nose piece must be used.
There will be no sectioning or widening of the nose
assembly. Nose model must conform to roof.
32) Rear Spoiler:
Must be made of a single piece of clear material
8"x68"-72" - a maximum of 3 triangular braces, 18" long.
33) Rear filler panel: Rear filler panel
is optional. It must be made of a solid material. 12”
x body width, filler must be vertical (perpendicular to
the ground) mounted to the deck lid and directly beneath
the base of spoiler.
34) Windows:
Full safety glass or Lexan front windshield as wide as
the roof at the top and extending to within 6" of the
sides of the body at the bottom is required. If
Lexan or equivalent material is used as a windshield, it
must be at least 1/8" thick. Full rear window must
have a uniform radius from the rear roof pillar to the
furthest point back. No tear drop back window.
Rear window may not be concave or become concave on the
track.
Weight
Stock front
sub cars and tubular front suspension cars - must weigh 2800
lbs with driver before the race.
Limited late model cars must scale at 58% left hand weight
or lower, rear at 50%.
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