The following specifications
have been prepared by Montpelier Motor Speedway and their officials as
guidelines for the construction of a Stock Car. No express or implied
warranty of safety shall result from publications of or compliance
with these rules. They are intended as a guide and are in no way a
guarantee against injury or death to participants, spectators, or
others.
Anything not covered by these
guidelines, must be approved, by the promoter or his assigned
steward. These specifications are intended to be in effect throughout
the 2012 auto-racing season. However, continuous development in auto
racing and technology may necessitate changes in these guidelines, and
management reserves the right to change them at any time.
2012 Rule Changes indicated
in BOLD
BODY
A. Any U.S. manufactured
full body passenger car style, full frame or unibody, 1950 or newer.
Steel or aluminum aftermarket template body with steel roof is
optional. All windows in body will remain open (rear quarter windows
may be closed in). NOTE: Driver seat may be no further back than
quarter post. Aftermarket plastic nosepieces may be used.
B. All doors must be
bolted or welded shut.
C. No cutting on body
allowed except for tire clearance.
D. May remove inner
fenders.
E. Must have Steel Floor
Pan from front firewall to the rear of the drivers seat. May have
aluminum from the back of the drivers seat to/and including the back
firewall (straight across) as long as the aluminum is the same
thickness as the steel in the front floor pan. Floor pan must follow
near to stock lines from front firewall to rear firewall and extend
frame rail to frame rail. Max step 10” measured from floor panel below
driver’s seat.
F. Body must match
engine manufacturer (i.e. Ford body, Ford engine)
G. Body damage must be
promptly repaired. Cars must be neat in appearance.
H. Hood and trunk lids
(trunk 2’x 3’min.) must be removable for inspection. No holes/openings
permitted in hood.
I. Rear tail area must be
stock appearing and closed in. Rear spoilers, up to 8” maximum, may
be used. Spoilers may not be made of fiberglass and may not
extend beyond the edge of the fenders. Braces may not be longer than
10”, nor higher than 8”.
J. No slab bodies.
(Body must resemble factory body style.)
K.
MUST HAVE STOCK APPEARING NOSE & TAIL. No Wedge Nose
Pieces.
CHASSIS/FRAME
A. Must be full frame.
Unibody may be used, but must be tied together with 2”x2” minimum
tubing.
B. 104” wheel base
minimum and must be stock for body/chassis used.
C. There must be a lifting
hook securely attached to the frame at both the front and rear of
car. Lifting hook must be easily accessible by tow truck operator.
D. If rear frame is made of
manufactured tubing, front clip must be at least 36” in length from
ball joint to rear of clip.
WEIGHT
A. 3000 lbs with 500CFM
#4412 Two Barrel Carburetor
B. 3200 lbs with 4
Barrel Carburetor
C. Plus 100 lbs with
stock appearing Aluminum body.
BUMPERS
A. Must be stock or can
be approved aftermarket nose and tail with bumper.
B. Bumpers must be
fastened to fenders or quarter panels. (Tied In)
INTERIOR
A. Interior must be
completely gutted. No mirrors.
B. Firewalls must be
completely covered with sheet metal and extend door to door. Must
extend down from top of fenders to top of frame rails on both sides.
Only tunnel (10” max height) allowed in drive shaft/transmission
tunnel. Front firewall must follow near to stock lines. Rear firewall
must be straight across.
C. Racing seats only.
Must be securely mounted to roll cage.
D. No interior tin.
Passenger side may have panel (18” max width) measured from outside
door skin, with an inspected access. Panel must extend down to floor
pan.
E. Must have 4-point roll
cage. 1½” O.D. minimum, with minimum .095 wall thickness, mild steel
with 3 door bars driver side and 2 door bars passenger side.
ENGINE
A. Must be stock appearing.
Engine setback may be no further back than centerline of #1 spark plug
to ball joint, GM to GM, Ford to Ford, etc. Cast iron heads and block.
B. No electric or belt
driven fuel pumps. No electric water pumps.
C. Headers permitted.
Exhaust must exit under car. No exhaust permitted inside the car.
D. No alcohol allowed.
CARBURETOR
A. 2 barrel or 4 barrel
Carburetor (1 Only). No fuel injection systems.
BRAKES
A. Must have four-wheel
brakes and lock up during inspection.
B. No shut off device.
REARENDS
A. Any O.E. car or truck
rear end. No quick-change device. (Floaters optional, but strongly
recommended).
TRANSMISSION AND CLUTCHES
A. May run any Auto or
Manual transmission.
B. Car must start on its
own.
TIRES AND WHEELS
A. All wheels
must be 8” maximum with 1” lug nuts.
1. Hoosier Emod tire D,
H, or A compound
2. 8” American Racing
tires
3. DOT passenger tires
4. Grooving optional.
Only on DOT passenger tires.
SUSPENSION
A. Weight jacks are
optional. (Non adjustable tubular upper a-arms permitted). Stock
passenger car spindles only, no fabricated spindles. Bottom A-frame
cannot be altered or moved
B. Quick release hub and
steering quickener are optional.
C. Shocks do not have to be
in stock location. One steel body shock and spring per wheel, racing
shocks okay.
D. Rear suspension must be
O.E. design. No added lift arms, shocks, or springs. Aftermarket pan
hard bars are optional, but must be solid. Upper torque link/biscuit
bar optional (24” max length - Must be solid), but mounting point on
car must be within 24 inches of axle centerline. (No Macpherson struts
or coilovers. No coilover eliminators.)
E. No
suspension/driveline parts or mounts permitted inside the drivers
compartment.
SAFETY
A. Five (5) point safety
belt, shoulder harness, belts must be mounted to cage or frame. Belts
and harness recommended to be no more than 1 year old. Helmet and
flame resistant fire suit required. Fire resistant gloves and shoes
recommended. Helmet-Snell 85, or newer recommended. No transmitting or
listening devices allowed in car. Roll bar padding is recommended
around driver’s compartment.
B. Drive shaft loop is
required and must be at least ¼” X 2” steel or ¼ “ chain and should be
mounted no more than 6” back from front of drive shaft. Steel drive
shaft must be painted white.
C. If battery is mounted in
driver’s compartment, it must be mounted in a metal box and in a
marine- type battery box.
D. All glass, chrome,
interior and exterior trim must be removed.
E. Radiators may not
protrude through the hood.
F. All add on weight
must be painted white and have number on it. Weight must be securely
fastened.
G. Fuel caps must have
car number on it.
APPEARANCE
A. All cars must be neat in
appearance, painted to look like a racecar and be neatly lettered,
with numbers painted 18” high on both sides, and 24” high on the roof,
numbers to 3” thick.
B. Badly wrecked cars
must be straightened.
FUEL CELL
A. Approved fuel cell
required. Fuel cell must be securely fastened inside trunk of car. All
cell mounts must be steel, attached to frame or cage. Fuel cell must
be in metal container. Fuel must be Gas only (No alcohol, and/or
additives)
THE PROMOTER/TRACK OFFICIALS
SHALL BE EMPOWERED TO PERMIT MINOR DEVIATION FROM ANY OF THE
SPECIFICATIONS HEREIN OR IMPOSE FURTHER RESTRICTIONS THAT IN THEIR
OPINIONS DO NOT ALTER THE MINIMUM ACCEPTABLE REQUIREMENTS. NO
EXPRESSED OR IMPLIED WARRANTY OF SAFETY SHOULD RESULT FROM SUCH
ALTERATIONS OF SPECIFICATIONS. ANY INTERPRETATION OR DEVIATION OF
THESE RULES IS LEFT TO THE DISCRETION OF THE PROMOTER/TRACK OFFICIALS.
PROMOTER/OFFICIAL DECISIONS ARE FINAL.
The absence of a specific rule does
not imply approval, consent, or permission regarding the subject.
IF IT IS NOT IN THESE RULES, DO NOT
TRY IT
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