| Body
and Frame |
 |
Body must be neat and stock
appearing, steel, fiberglass or aluminum. |
|
After market nose piece to
be mounted in conventional manor. Nose piece front over hang to be
a maximum of 45” from center of hub to tip of nose, including
lip/splitter on the front of nose piece. Maximum width of lip is 4”.
Nose piece flare must be flush with top of fender. Nose piece will
have no
more of 1” of belly built in to face of nose. Any nose piece
that is flattened or smooth, add 50 lbs at officials discretion. Both
front corners of nose piece/lip must have a radius to prevent sharp
edges. |
|
Rear over hang measured from
center of rear axle, 46” maximum to furthest point back, excluding
bumper. Quarter panel to be perpendicular to the ground. Quarter panel
minimum 8” from ground to bottom of panel. |
|
Minimum wheel base 102” |
|
NO minimum ground clearance
car must meet all body measurements on 3” blocks. Car cannot
scrape the race track. |
|
Roof height minimum of 45”,
measured 10” back from windshield, no more than 2” drop
permitted front to back in center of roof. Maximum drop side is 2-1/2”.
Maximum 102” measurement from front of roof to base of rear spoiler. |
|
Window openings minimum of
12” x 22”. Driver must be able to get out of car on both
sides with helmet on. No add-on pieces in window area. |
|
Body maximum of 82” wide
at front, back to center of rear tire. Body width to decrease gradually
to maximum of 78” at the rear panel/spoiler (was 72” we
are not requiring this it is an option). Body panels are to appear
symmetrical (the same) from side to side (excluding roof), side of
body must run in
a vertical fashion. No wheel flares, no swoop in body panels. No right
side ledges over 10”, no left side ledges over 5”. |
|
Rear window any continuous
radius of elliptical shape resembling stock design, but may not come
to a point. No V shapes or concave windows. Must have rear window
brace, placed in center of window. |
|
Maximum height of rear deck
from ground 36”. |
|
Rear spoiler maximum of 8”
high x 78” wide (material), made of clear material and be flat
bracing may be from front or rear. For front bracing, maximum of 3
supports, maximum of ¾” round tubing only rear bracing
must be inset from sides of quarter panel. A minimum of 3” on
both sides max 1” rear. |
|
Facing lips only maximum 42”
from ground to top of spoiler. 9” x 72” rear spoiler will
be allowed on 72” wide rear quarter. |
|
Maximum height of rear bumper
12” |
|
Rear deck lid maximum of 28”,
from base of rear window to base of rear spoiler. Deck lid must be
removable or have access panel. Rear deck lid drop or belly may have
maximum of 1” drop, checked from side to side check from rear
quarter panels. |
|
Back panels optional |
|
Rub rails maximum of 1”
x 1” no sharp edges, must have closed ends. Bolts must be countersunk.
No aluminum or composite bumpers. Steel only. No aluminum door bar
assemblies or posts outside of roll cage or rub rails. |
|
No push bars are allowed to
protrude through nose piece. |
|
Bar measurement from bottom
of 3” frame rail to top of rear roll bar is minimum 39”
with ¼” tolerance. The measurement of front halo bar to
be identical 39-1/2” inches. 1/4” tolerance any material
added to meet the measurement must meet the minimum roll cage specifications. |
|
Full front windshield and
full rear window required, and must be completely riveted and securely
fastened, must be stock appearing. |
|
Roof minimum 38” long
by 45” wide. |
|
Fuel cell must be located
to the rear of rear axle and between the inside edges of the rear
tires. Cell must be a minimum of 8” off the ground at its lowest
point. Container must be made of metal. |
|
No carbon fiber body components
permitted, except roof. No titanium or carbon fiber rotors or drive
shafts. |
|
Maximum track width will be
checked outside to outside at bottom of tire 82” maximum. |
|
Right rear quarter panel and
rear spoiler cannot exceed past right rear tire sidewall. |
| |
| Chassis |
|
Stock or tubular front sub
frames allowed. |
|
Coil over shocks and springs
may be used. |
|
No minimum frame height nose
may race at minimum height must be raised if car scrapes track. All
body measurements will be checked on 3” blocks. |
|
Canister shocks are not allowed.
E. maximum 4 shocks and 4 springs. |
|
Besides brakes, no adjustments
of any kind in cockpit area where driver can access |
|
Minimum weight of car with
driver is 2700 lbs. |
|
Aluminum heads add 50 lbs. |
| |
| Engine |
|
Engine may be interchangeable
number one spark plug must be within 4” of ball joint |
|
Carburetor maximum of one
four-barrel with 2 return springs. |
|
Cast iron blocks (aluminum
heads may be used). Must have functional starters. May run cast iron
or aluminum intake manifolds. Air cleaners are mandatory and must
be under hood. (No holes through hood). |
|
Dry sumps or any external
oil pump system may be used with a minimum of 10” crankshaft
height. No minimum crankshaft height on wet sump engines. |
|
Headers are allowed exhaust
must go back past doors. |
|
If using a stock clutch, an
iron bell housing or steel scatter shield must be used. |
|
No V-6 engines. |
|
$250 claim on ignition boxes.
Ignition boxes may be impounded after race for 1 week to be tested.
MSD box must be mounted out of reach of driver sitting in car. |
| |
| Drive
Line |
|
Where aftermarket clutches
are applicable, use of a conventional clutch is required. For definition
purposes, a conventional clutch is the only clutch allowed and the
application and construction are defined in the following manner: |
|
Solid magnetic steel clutches and pressure plates only. Clutches
must be positive engagement design. Slider or slipper clutch designs
are not permitted. No carbon fiber clutches. Clutches found not
to meet this definition will be deemed illegal.
|
|
No four-wheel or all wheel
drive, or automatic transmissions. Have reverse gear. |
|
Floater wide five or quick
change rear ends are allowed. |
|
Must have four wheel operating
brakes, iron rotors only. |
|
Drive shaft must be painted
white, and have safety hoop. |
| |
| Fuel
System |
|
Fuel cell is mandatory, must
have approved guard, and must have 8” ground clearance. |
|
Steel lines or braided hose
must be used as fuel line from fuel source to fuel pump rubber hose
may be used at fuel source and fuel pump connections. No fuel line
in cockpit area. |
|
No alcohol or nitrous oxide. |
|
Fuel cell must be mounted
between rear tires and between frame rails. |
| |
| Tires
and Wheels |
|
Maximum 10” wide steel
wheels only. No aluminum, carbon fiber or plastic wheels. |
|
Hoosier 970 tires. |
| |
| Miscellaneous |
|
No electric or hydraulic tractional
devices allowed. |
|
Any infractions from these
rules are subject to a weight penalty or will not race until car meets
rules. |
|
Ballast weight must be painted
white and have car number on it. |
| |
| Additional
Rules |
|
A full fire retardant driving suit, racing gloves and
Snell 95 or newer helmet is required. |
|
A suitable form of neck restraint is recommended (a
neck collar at minimum). |
|
An aluminum racing seat with belts no more than 3 years
old are recommended. |
|
Window nets are mandatory. |
|
Additional weight must be securely bolted to car and
painted white with car # displayed. |
|
All safety issues are subject to approval by Plymouth
Speedway Staff. |
|
HEAD AND NECK RESTRAINT SYSTEM HIGHLY RECOMMENDED! |
|
When transponders are supplied by the track and used
for scoring, teams will be charged $300
each if not returned to appropriate official. |
|
Teams are responsible for proper mounting of transponder,
per official’s direction at track. |
|
Officials have the right to reject any car from competing.
The rules are subject to change at official’s discretion and
weight penalties may be added for infractions. Official’s may
and will alter rules at certain events to allow participation by local
cars where they gain no unpenalized advantage. |
|
Additional Race and Procedural Rules will be distributed
at a later date. Breakout rule will be established prior to the beginning
of the 2012 season. |
|
Point standings will be maintained and a 2012 Champion
will be declared. The top 10 will receive point fund earnings, awards,
and be honored at the 2012 Awards Banquet. |
|
Must compete in 85% of the events
|
| |
| Inspections,
Mechanical Protest |
|
Officials may require an inspection
of any vehicle at any time. Vehicles placing in the first five positions
must present themselves at the inspection station immediately after
the conclusion of the feature race for such inspection and must not
work on the car in any fashion until told to do so by a technical
official. |
|
A competitor must take whatever
steps are required, including a complete tear down of the car, as
requested by series officials to facilitate inspection of the car. |
|
Failure to present a car for
inspection when requested to do so, or refusal to take steps requested
by series officials, will be considered an admission of guilt and
will be grounds for disqualification. |
|
Protests regarding alleged
mechanical infractions must be made prior to the feature race being
called to the track for the official lineup. The written protest must
specify, in detail, a single, specific part or rule that is in violation,
and be given to the chief technical inspector or race director, along
with a fee of $300 cash per violation. Mechanical inspection with
respect to such protest will be made following the feature race. $100
of the fee will be retained by the speedway for administrative costs
with the remaining $200 going to the winner of the protest.
|
|
A protest may only be filed
by a competitor in the same feature race. |
