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Safety
1. Electrical Kill switch required within easy reach of the driver.
Switch must say “ON” or “OFF”.
2. Helmets are required and must be approved SCCA or Snell 85 type full
coverage.
3. Fire suits of flame retardant nature must be worn by all competitors.
Fire resistant gloves required. All cars must have a working fire
extinguisher within driver’s reach.
4. Only one battery permitted. Maximum 16 volts. Must be mounted
securely outside driver’s compartment.
5. All cars must have fuel cells, 22 gallon maximum, in completely
enclosed steel container. All cells to have a minimum of two 1/8” X 2”
steel straps surrounding the. Fuel cell must be protected in rear of
axle by roll cage tubing mounted securely. No part of fuel cell can be
lower than protective tubing. Must be a minimum of 8 inches from track.
6. Belts must be aviation type quick release and must consist of a lap
belt, shoulder harness and sub strap. Belts must be a minimum of 3” and
NO MORE THAN 5 YEARS OLD. Belts with no
dates will be considered too old. Belts must be properly mounted to
welded steel plates and not through tin, aluminum, floor, or bulkhead.
7.
All cars must have a minimum 5 lb. fire
extinguisher within drivers reach.
Bodies
1. Bodies may be Tempo, Cavalier, Mustang, Daytona, Gremlin, etc.
American passenger cars only. No panel vans or station wagons. Rear
window area must be open. Must be full sized roof. Rear side windows
must be either open or clear Lexan. Must have full, half or capsule type
Lexan windshield. If running half of capsule type you must have guard on
passenger side. All cars must be stock appearing, and resemble an
American made car sitting in the parking lot.
Chevy Motors only - may use any body style.
2. Firewalls and floorboards and mandatory. The driver’s compartment tub
(to the right and to the rear) to be constructed from a minimum of 22
gauge steel or aluminum. The driver’s footbox and firewall to be
constructed of a minimum of 22 gauge steel. Fiberglass or metal
duplicate of body parts are permitted. Handmade or after market body
parts may be constructed of steel, aluminum, or fiberglass. Must be
recognized as factory production vehicle, with name on front of driver’s
door. No slab bodies. All bodies must maintain OEM lines and angles, no
body part may be closer than 4” to the ground. No side skirts. Right
rear quarter panel to be no further than 2” to the inside of the inner
sidewall of tire. No flat sided doors, quarter panels, fenders or rocker
panels permitted. Body measurements per attached diagram.
3. Original roof line of vehicle should be maintained with a maximum 2”
drop, rear to front. No wings. No air flow devices to direct air
allowed. No ground effects allowed inside or outside of vehicle. Both
side windows must have a minimum of 12” vertical opening from front to
back. Roof height must be minimum of 44 inches. May run 5” high spoiler,
66” across, to be located at the rear of the deck lip.
Deck lip not to extend more than 45” behind center
of rear axle. The top 4” of
spoiler must be made of clear Lexan. Competitors must be able to see
through spoiler.
4. Engine compartment will remain open. No side panels. Hood sides may
have a maximum 4” drop and must be enclosed at rear of hood. Bodies
should extend no further forward than back of block. Rear of bodies to
be solid panel at least 8” high with car number.
5. Suggested bodies: Star Track Race Car Bodies, Story City, Iowa
515-733-2282
or 1-888-833-5174 -
www.harrisautoracing.com
6. Minimum Crank height from center of crank to ground: 11 inches.
Roll Cage
1. Roll cage must consist of continuous hoops not less than 1 – 3/4”
outside diameter and must have a wall thickness of at least .095. Must
be frame mounted in at least 6 places. Cages will be sonic tested if
necessary.
2. Must consist of a configuration of front and rear hoops connected by
tubing on the sides or side hoops. Driver’s head must not protrude above
cage with helmet on. Roll cage must be securely supported and braced.
Top hoop must have crossbar. Minimum height from ground to top of roll
cage 44”, with 4 inch frame height.
3. Protection of the feet is mandatory. Bar across back of engine with
vertical bars and rub rails or similar protection.
4. No brace bars forward of the cage may be higher than stock hood
height.
5. Driver door bars must be as parallel with the ground as possible and
located perpendicular to the drive so as to provide maximum protection
for the driver, but without causing difficulty in getting in or out of
vehicle. The side bars must be welded to the front and rear of the roll
cage members. Door bars less than .095 thickness should have 4 bars at
least 1 – 3/4” diameter. Driver side door cage must be plated with 1/16”
steel from top door bard down to frame, must be welded on outside. Right
side 3 bars or X method. If door bars are not plated and car loses side
panel you will be black flagged.
6. Front bumper must be mounted frame end to frame end, with bottom loop
parallel to the ground. Minimum 1 – 1/4 “ pipe able to support car if
lifted by wrecker. Rear bumpers may be constructed of tubing or flat
stock, and must protect fuel cell. Center of bumpers (front and rear)
must be 18” from ground (Tolerance 2”). Rear bumpers, nerf bars, and
bodies must not extend beyond width of rear tires and must not contain
any sharp edges. Rear bumper tethers are highly
recommended.
Chassis
1. May be offset chassis or straight up. Minimum wheel base 108”. No
tube type clips allowed. Maximum 58% left side weight.
Added weight must
be securely bolted inside of frame rails, behind front spindles and in
front of rear axle. No weight inside driver's compartment. No more than
200 lbs of bolt on weight permitted. Loose objects must not be used in
driver’s compartment. Mounted lead must be painted white with car number
on it. If a weight comes off your car and ends up on the racetrack you
may be assessed a $200 fine. This does not apply if the car is involved
in an accident. All weight must be attached with at least two 1/2” bolts.
Weights cannot be attached on rear bumper.
2. Chassis weights according to configuration:
(All weights with driver, before race, race ready.)
Metric snout - coil spring- crate engine -
2500 lbs.
Metric snout - coil-over shock-spring - add
an additional 50 lbs.
Camaro-Nova snout - coil-spring-crate
engine - 2550 lbs.
Camaro-Nova snout- coil-over shock-spring -
add an additional 50 lbs.
3. Factory production full 1960 or newer perimeter American passenger
car frames only. Frames may be cut in rear only at a point not further
than 36” from center of rear end housing. No Jeep, Bronco, or 4 wheel
drive frames allowed. No front wheel drives. Metric frames are ok. Also
Camaro or Nova Clips or you may run Howe Replacement with minimum
weights above. When mounting Camaro or Nova Clip or Howe replacement a
minimum measurement from lower control arm to tube frame 24-1/2 inches.
4. Maximum tread width front and rear is 78 inches, measured from
outside of tire to outside of tire. ONLY authorized solid wheel spacers
allowed. The front is measured at the front of the wheels, the rear is
measured at the rear. The track or technical inspector’s gauge is the
final word. Frames may not be widened or narrowed and must be able to
support cage on both sides. Must be full and complete on both sides.
Minimum frame height from ground is 4”. Cutting frame rails for spring
clearance and radiator is allowed. No other part of the car may be
lower than 3”.
5. Front suspension must in stock location. Heim ends permissible. Also
may run tube type tie rods, and stock or aftermarket center link. Stock
passenger car spindles only. No fabricated spindles. No alterations
(welding or heating) allowed on spindle arms. Bottom A frames cannot be
altered or moved. Tube type upper A frame allowed, can be moved and
adjustable. Jacking bolts allowed. Conventional coil spring and shock,
or coil-over suspension allowed. Must be steel shock. One steel body
shock per wheel only. Only shocks with a racer list price of $125 or
less may be used. No threaded shocks. No adjustable or rebuildable
shocks permitted. Coil-over suspension must use coil-over conversion
kit.
6. Rear frame may be altered to accept leaf, coil spring, or coil-over.
Any coil spring must be at least 4 ½” outside diameter. No fiberglass
springs. No fiber glass lift bars. No torsion bars in rear. The rear
center link may be a solid link or mounted in rubber bushings.
7. No hydraulic, ratchet, or electric weight jacks anywhere in or on
car.
8. A right front hub must be of OEM heavy duty type only. No aftermarket
replacement hubs.
9. Minimum wheelbase 108”. No tube type clips allowed. No aluminum or
fiberglass suspension or rear end parts. No aluminum driver shafts.
Drive shafts must be painted white. No titanium parts may be used
anywhere on car.
10. Steering box must be OEM. NO rack and pinion. No aftermarket
steering box. Must remain within original bolt pattern for type of frame
used. In cockpit steering may be modified to suit driver’s taste, but
must be on left side of cockpit. No center steering. Collapsible
steering column highly recommended.
11. No aluminum wheels, hubs, “A” frames or spindles or any aluminum
suspension parts. Steel wheels only. No plastic carbon fiber wheels. All
rims must be 15” X 8”. No tire bleeders.
12. Brakes must operate on all 4 wheels and lock on inspection. All
calipers must be OEM! No floating brake calipers permitted. Brake bias
adjuster is allowed.
13. Weight jacks must be in original centerline with coil springs.
Engine/Drive
Line
1. Only OEM production type transmissions will be allowed. 3 speed or 4
speed and automatic. No 5 speed. No in and out boxes. No buttons or
couplers. Must be clutch operated. Clutch or torque converter must be
inside of bell housing. Shift with motor running imperative! Multiple
disc clutches are permitted. Minimum disc diameter is 7 1/4 inches,
steel discs and pressure plates only, must mount to back of engine in
stock location. Any steel flywheel permitted. Clutch must be mounted
inside of bell housing. No Jericho type transmissions.
2. Transmission must have at least two gears forward and one reverse
gear, and must have neutral. All race cars must join lineup on demand,
unaided, or go to rear of race.
3. If using stock type clutch, car must be equipped with explosion proof
steel bell housing. If using multi disc clutch you may use standard bell
housing.
4. Drive shaft loop is required and must be constructed of at least ¼
inch X 2” steel. Must be mounted no more than 6” back from front of
driver shaft.
5. Gear rule: 5.38 or to be announced at larger tracks.
6. Any passenger OEM car type or truck rear end may be used. No aluminum
allowed, except for lowering blocks or axle cap. No quick change devices
allowed. No titanium. Locked rear end, spool type only. No coating or
internal rear end or transmission parts including but not limited to
ceramic. Steel mini spool, no gold or true track type rears. All rear
ends must have racing axle for safety if not floater. For 9” rear OK. If
you run a floater you must run steel hubs and steel drive plates, no
aluminum.
7. GM crate engine p/n 88958602 is mandatory in full untouched factory
form from intake to oil pan. The only change from production will be
that of replacement oil pan Moroso p/n 21319 and matching oil pump p/u
assy. Before mentioned oil pan is the only legal replacement permitted.
| a.
Exhaust System. Exhaust system must be mounted in such a
way as to direct spent gases away from areas of possible
spillage of fuel. Headers may be used but must be pointed away
from the ground. All cars must have a working muffler, passing a
maximum of 100 decibel noise test 50’ from the track. Exhaust
may exit by the nerf bars but may not extend beyond them.
Exhaust must be collector type header.
No 180 degree headers allowed. Left exhaust header must exit on
left, right header on right side. Only headers allowed are IMCA
type - no cross over headers.
b. Carburetor.
650 cfm. Holley p/n 80541-1 or -2 only. No modifications from
factory production.
c. Air filter. Maximum size 17
inches outside diameter by 4 inches high. No flow enhancers or
cold air induction permitted. No notching of cowl, back of hood
must seal to cowl top.
d. Fuel pumps. Only stock type,
mechanical fuel pumps, mounted in stock position. No electrical
pumps. |
8. Only Sunoco standard
(purple) race fuel permitted or pump gas only.
9. Stock motor mounts may be replaced with solid mount. Motor must be a
minimum of 72 inches from the center of the rear end to the rear of the
engine block. Engine offset must be kept within 2” of the centerline of
the cross member (within 1” of center).
10. Ignition system. Any battery powered ignition system produced for
highway use is allowed. No crank trigger systems, no magnetos, boosters
or other devices allowed. One working coil only. No after market
electronic ignitions allowed. No systems with external box allowed.
Battery must be securely fastened inside the main frame rails and
outside of cockpit. Battery must have protective cover.
GM HEI stock type distributor only.
11. Cooling system may be modified. No anti-freeze permitted.
MISCELLANEOUS
1. Radios are optional, and if used, frequencies must be supplied to the
techinical inspector prior to race event. Frequencies are subject to be
scanned during race event.
2. Mirrors are allowed and are NOT to be used for blocking purposes.
3. American Racer 8” EC84 27.0 and 26.5 will be the tires used. Tire
purchase schedule will be posted.
4. Wheels: no wide fives, 8” Steel conventional only.
5. Side bars, Nerf bars. All sidebars should run parallel to the ground
and have rounded ends. Sidebars not to extend past outside tread of
tires.
6. All rules are subject to change if it becomes necessary to keep
competition equal or for safety issues.
7. Spill boards, vertical or airfoil or any other aerodynamic devices
will not be permitted anywhere on the car.
8. Tech reserves the right to add or subtract weight to keep competition
equal.
For technical questions concerning rules call
Scott Reed after 6 pm at 207-625-3230.
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