Rule 21 – Alternators allowed.
Rule 22 – Remove words - 7.25 inch minimum diameter.
Rule 24 – Steel Dart blocks allowed.
1. SAFETY EQUIPMENT: Rules apply at all
times car is on track. Snell-rated SA2000, SA2005 or SFI 31.1/2005 helmet
required. No “M” Rated Helments Allowed. Roll bar padding required in
driver compartment (Fire retardant
recommended). SFI-approved full fire suit required. Fire retardant
neck brace, gloves and shoes required.
Recommended: Fire retardant head sock and underwear; head and neck restraints;
collapsible steering shaft. Driver-side window net required,
minimum 16 inch by 20 inch ribbon or mesh style, and must be mounted so latch is
at top front of window. Minimum three inch wide SFI-approved five six point
safety belt assembly required (Y-type shoulder harness not allowed), must be
mounted securely to roll cage, CAN NOT BE OLDER THAN 3 YEARS,
recommended to be no more than one year old.
Kill switch required within easy reach of driver and must be clearly marked
“OFF” and “ON”. Must have fire extinguisher mounted within reach of driver.
2. FRAME: Any American OEM full body rear wheel drive passenger
car, 1964 or newer, full frame or unibody. Minimum 107.5 inch wheelbase, maximum
one inch difference from side to side. Frame must match body — GM to GM, Ford to
Ford, Chrysler to Chrysler — AND wheelbase to wheelbase. Exception is: 1980 or
newer Ford two door unibody may be installed on Ford full frame, and shortened
to minimum 107.5 inch wheelbase. Rear of frame behind rear tires, no further
forward than one inch behind factory seam, may be replaced in OEM location with
two inch by three inch steel tubing with 0.095 inch wall thickness. Factory seam
must remain visible. Unibody must tie rear frame to front frame. Frame may be
“X” braced. MUST HAVE PICK UP CHAINS, FRONT AND REAR.
3. ROLL CAGE: Main cage must consist of continuous hoops,
minimum 1.75 inch O.D. tubing, with a minimum wall thickness of 0.095 inch,
low carbon or mild steel recommended.
Four-post roll cage required, front down bars and rear hoop must be welded to
OEM frame. No offset cages. Driver’s head must not protrude outside cage with
helmet on. Rear hoop must have “X” brace, consisting of one full horizontal and
one full diagonal bar, minimum 1.25 inch O.D. with 0.083 inch wall thickness.
Front down bars must be tied together, passenger side front down bars must be
maximum 11 inches in from top of door. Must be minimum 40 inches between front
and rear down bars at top of door panel. Maximum 41 inches (48 inches for
1988-1996 GM bodies) from top center of windshield to front edge of rear hoop;
maximum 13 inches (20 inches for 1988-1996 GM bodies) to front edge of top halo.
Top halo must be minimum 40 inches across, outside to outside. Rear hoop may be
maximum 12 inches in from bottom of opera window. Minimum one cross bar in top
halo. May have maximum two horizontal bars, (in addition to bar tying front
frame horns together) for radiator protection; must be behind bumper, within
confines of body, no wider than stock frame horns. Required rear kickers (down
bars) and engine hoop must be minimum 1.25 inch OD tubing, with 0.083 inch wall
thickness. Fuel cell protection required, must be mounted frame rail to frame
rail, no higher than fuel cell, inside trunk area with maximum 1.75 inch OD
tubing. All bars must be inside body. Foot protection bar required. MUST HAVE
PETTY BAR ON DRIVER’S SIDE. Roll
bars within the drivers reach must be padded with an accepted material as
determined by an official, fire retardant material is highly recommended.
4. DOOR BARS: All door bars and uprights must be minimum 1.75
inch O.D. with 0.095 inch wall thickness. Minimum three door bars, both sides,
parallel to ground, and perpendicular to driver, and welded to front and rear of
roll cage. Minimum four uprights tied from frame to top door bar on driver side,
and minimum three uprights on passenger side. MUST HAVE PETTY BAR ON DRIVER’S
SIDE. Steel door plates, 18 gauge or 0.049 inch minimum thickness, must be
securely welded to outside of door bars on driver’s side. Plate must cover area
from top door bar to frame and from rear down post to five inches in front of
seat. Must be visible for inspection.
5. BODY: Must be unaltered OEM, and centered over wheel wells
(front to rear and side to side). Front body mounts must be visible. May use
1988-1996 Cutlass, Grand Prix, Lumina, Regal or Monte Carlo body on 1978-1987 GM
108 inch wheelbase full frame. If using a newer front-wheel drive body on an
older model chassis, the body must be squared up on the frame. Not offset to the
left. Sunroofs and T-tops must be enclosed. OEM or aftermarket plastic nose and
tail pieces allowed. All body panels may be gutted, including fenders, doors,
hood, roof, quarters and trunk, but must remain original size. No overlapping or
shortening of body panels. Hood must be separate from fenders, in OEM location,
with rear sealed off from driver compartment with metal. All inner wheel wells
may be removed. Rear edge of trunk may be trimmed and rear tail light support
removed only if aftermarket tail piece is used. Trunk floor must be removed over
rear end housing, entire trunk floor may be removed. All windows must remain
open, except opera windows may be covered with lexan. Maximum seven inch metal
sun visor may be added to top of windshield opening. Wheel wells may be trimmed
for tire clearance. No spoilers, hood scoops, ground effects, skirting or
reflective body panels.All racecars must be numbered with large, legible numbers
on both sides, top, nose and rear panel. Numbers must be of extreme contrasting
colors. Holographic or reflective lettering is highly discouraged. Numbers on
the sides of the racecar should be at least 4 inches thick and at least 18
inches , top numbers should be at least 4 inches thick and at least 24 inches
high.
6. DRIVER COMPARTMENT: Loose objects
and/or weights are not allowed. Minimum of three windshield bars
in front of driver. Factory-manufactured aluminum high-back seat only and must
be bolted in, using minimum 0.375 inch bolts. Homemade aluminum, plastic or
fiberglass seats are not allowed. Seat must remain inside all confines of roll
cage. Driver must be sealed off from track, driveline, engine and fuel cell.
Kick and rocker panels may be removed. Front OEM firewall may be replaced using
steel fabricated firewall, 18 gauge or minimum 0.049 inch thickness. Top of
firewall can be no further back than 12 inches from the back of engine block,
measured horizontally. Bottom of firewall can be no further back than rear of
oval body mount frame hole. Dash must not extend more than 24 inches back from
top of firewall. Dash must be flat, rear can be no higher than front, except for
cowl in front of driver. OEM floor pan may be replaced using steel fabricated
floor pan, 18 gauge or minimum 0.049 inch thickness, securely welded to frame.
Floor pan may be replaced from front firewall to rear halo supports. Must remain
flat/OEM appearing from frame rail to frame rail, can be no higher or lower than
frame rail. Exception is maximum 8-inch tall driveshaft tunnel. Tunnel must
remain similar to OEM tunnel in size. No cockpits, interior must remain open.
Rear firewall may be aluminum or steel and may be located no further forward
than rear halo supports and no higher than bottom of rear opera windows. All
holes in firewalls must be covered with metal. No driver-adjustable devices
allowed while car is in competition except brake adjuster. No mirrors of any
kind.
7. FRONT SUSPENSION: All components and mounts must be steel,
unaltered OEM, in OEM location and match frame. Rubber, nylon or steel lower
A-frame bushings only - no offset or bearing type. No sway bars. Exceptions are:
weight jacks allowed - must be in original centerline of spring tower; OEM upper
A-frame mount may be moved or replaced with aftermarket steel mount matching
upper A-frame bolt on design; OEM or OEM replacement ball joints allowed. For
1978-1987 GM mid-sized metric frame, OEM upper A-frame may be replaced using
aftermarket upper A-frame. Shock location may be moved and may go through center
of aftermarket upper A-frame, but frame cannot be altered in any way. Single
hole shock mounts only.
8. STEERING: No rack and pinion. All components must be steel,
unaltered OEM, in OEM location and match frame. Exceptions are: bolt on spindle
savers allowed, OEM steering column may be replaced with steel knuckles and
steel steering shafts (collapsible
recommended). Quick release metal coupling on steering wheel is
required, Plastic couplings are not allowed - steering quickener and steering
wheel may be aluminum.
9. SHOCKS: One steel nonadjustable unaltered shock per wheel.
No coil over, air, or remote reservoir shocks. No Schrader or bladder type valve
allowed. No coil over eliminators. One or all shocks may be claimed per event
for $50 each. Driver claiming shocks may not claim carburetor or engine on same
night.
10. SPRINGS: One steel spring per wheel only. All coil springs
must be minimum 4.5 inches O.D. and non-progressive.
11. REAR SUSPENSION: All components and mounts must be steel,
unaltered OEM, in OEM location, and match frame. No independent rear suspension.
Rubber or nylon control arm bushings only, no offset, driled, slotted or bearing
type. Welded single-hole shock mounts only. Exceptions are: coil springs may be
moved, but center line of axle tube can be no further forward than the front of
spring, or no further back than rear of spring; shocks may be moved, but must
remain behind housing; lower control arm mounts on rear end may have multiple
holes (maximum of five) for adjustment. Upper control arm mounts on rear end
must be level with each other.
12. REAR END: Any steel approved OEM passenger car or truck
non-cambered rear end (housing and carrier) allowed. Safety hubs (floater)
allowed. No sway/panhard bars. All components must be steel, exceptions are:
lowering blocks, axle cap, and drive flange may be aluminum. No adjustable
lowering blocks. One inch inspection hole in housing required. Full steel spool,
steel mini spool or welded rear end only. Steel axles only. No quick change
devices. One piece drive flange only. No torque-dividing differentials. No
scalloped ring gears.
13. BUMPERS/RUB RAILS: Maximum one inch wide by two inch tall
steel or lexan rub rails allowed - bolted flush to body. Front and rear tow
hooks mandatory. All front bumpers must be mounted minimum six inches from front
frame horns. Steel bumper mounts only. No sharp edges allowed on bumpers, rub
rails or bolts. One of two bumper options must be used and must be OEM height:
OEM: Bumpers not covered by plastic nose or tail piece must be complete,
unaltered OEM, capped to fender with steel, welded or bolted. No bars past
outside edge of body other than rub rails.
AFTERMARKET: Fabricated tubular bumpers allowed, but must be covered by plastic
nose or tail piece and bent to fit with rounded ends. Main bumper bar must be
minimum 1.5 inch O.D. (maximum two inch) with 0.083 inch (maximum 0.125 inch)
wall thickness on front, and 1.75 inch O.D. with 0.120 inch wall thickness on
rear.
14. TIRES/WHEELS: Must use unaltered Hoosier Race tire, G60-15
with IMCA stamped on sidewall or American Racer G60 or KK704. No chemical
softening, conditioning of tires. Tires may be re-grooved, ground or siped
within confines of tread (not past factory straight line). No re-caps. Spacer or
offset wheel, or a combination of the two allowed, but cannot exceed two inches
total offset per wheel. May use bead lock wheels on right and left side.
External, steel bead lock only and it cannot make wheel any narrower than 8
inches and no wider than 8.75 inches. Steel bolts only, minimum one inch lug
nuts. Foam type or plastic outer mud cover allowed on right side wheels. Inner
mud cover allowed on left rear only. No bleeder valves.
15. BRAKES: Steel, unaltered OEM, or unaltered OEM replacement,
operative four wheel, drum or disc allowed. Front components must match frame
and maintain minimum OEM dimensions for hubs/rotors and calipers, cannot be
lightened. OEM diameter caliper pistons only. Bolt pattern may be changed.
Larger studs allowed. Vented rotors only, no scalloped or ceramic coated rotors.
Rear rotors may be aftermarket 0.810 inch thick (new). No floating brakes. No
brake shut-off. One front to rear proportioning device allowed. Brake lines must
be visible. Aftermarket pedal assembly allowed.
16. EXHAUST: Round tube headers only. All primary header tubes
must enter directly into one collector at same point at end of header. Must
remain dual exhaust, no crossover or “Y” pipes. No exhaust through body panels
or fenders.
17. FUEL SYSTEM: Mechanical OEM type push
rod fuel pumps only. Racing fuel cell required, maximum 22 gallon, must be in
minimum 20 gauge steel container. Must be securely fastened in trunk above top
of rear frame rails, behind rear tires, no further forward than factory seam
where rear frame rail can be replaced, with minimum two solid steel straps
around entire cell, two inches wide and 0.125 inch thick. No fuel cells allowed
over rear end housing. Metal firewall must be between driver and fuel cell. All
cell mounts must be steel, securely welded to frame/cage. No adjustable fuel
cell mounts. Fuel cell vents, including cap vent, must have check valves. If
fuel cell does not have aircraft style positive seal filler neck/cap system - a
flapper, spring or ball type filler rollover valve is required. Fuel lines
through driver compartment must run through metal pipe or metal conduit. One
fuel filter only, cannot be in driver’s compartment. No cool cans. Air cleaner
top/stud cannot direct air into carburetor. No top flow air cleaner housings,
cold air boxes or air cleaner duct work. One two-barrel carburetor. No
aerosolcarbs. No Dominators or Predators. No fuel injection or electric fuel
pumps. Must be naturally aspirated. Maximum 1 ¾” bore at base plate. Float bowl
must face forward. Carburetor adapter/spacer allowed, maximum 1.20 inches thick,
including gaskets. $200 carburetor claim or Carburetor may be exchanged,
following same procedure as engine claim. Driver claiming carburetor may not
claim engine or shocks on same night.
18. FUEL: Gasoline only. Racing fuel allowed. No E85. No
performance enhancing or scented additives. Fuel must pass both dielectric meter
and chemical tests.
19. WEIGHT: Minimum
weight of 3,000 pounds, after race with driver in car. No tolerance. No weights
and/or loose objects in driver compartment or outside body and must not be
visible. Weights must be securely mounted to frame or roll cage and painted
white with car number on it. Must be attached with at least two 0.5 inch bolts.
No titanium, magnesium or carbon fiber products. No gun-drilled, tubular, hollow
bolts or studs. Steel fasteners only.
20. BATTERY/STARTER: One 12 volt battery only, must be securely
mounted between frame rails, and positive terminal must be covered. Battery must
be in Marine type case if mounted in driver compartment. Starter must bolt in
OEM location. Car must have capability of starting without being pushed or
pulled.
21. GAUGES/ELECTRONICS: No unapproved cameras, transmitting or listening devices. No timing retard controls, or digital gauges (including tach). No electronic monitoring computer devices capable of storing or transmitting information except analog tach. No adjustable ignition control boxes. Only one 12 volt ignition box allowed, must be out of driver’s reach. No additional ignition accessories. Only change allowed to ignition box is one high-end rev-limiter. Setting can be changed through one chip only, or an internal setting inside box. No alternators or magnetos. No electronic traction control devices. If traction control devices are found the driver and car will be DQ’ed and suspended for 4 events plus lose all points for previous 4 events, parts will be confiscated and driver and/or car owner will be fined $1000.00. Must be paid before driver or car is allowed to race again.
22. TRANSMISSION/DRIVE SHAFT: Must have at
least two forward gears and one reverse, plus neutral position. With motor
running and car in still position, must be able to engage car in gear and move
forward, then backward. Only OEM production type transmissions allowed - two
speed, three speed, four speed and automatic. No five speed (or more)
transmissions, “in and out” boxes, or quick change devices allowed. No Bert,
Brinn, Falcon or Jerrico transmissons allowed. Functioning shift levers must be
in OEM location. Flywheel/flexplate must be bolted directly to end of
crankshaft, and pressure plate must be bolted directly to flywheel/flexplate.
One flywheel/flexplate only, and all driveline components within bellhousing
must rotate consistent with engine RPM while car is in any gear. Unaltered
flexplate must be full OEM, or OEM replacement.
Manual: Must be OEM or OEM replacement case and have a working
7.25 inch minimum diameter, steel and/or aluminum, single or multi-disc clutch
inside explosion-proof steel bellhousing - minimum 270 degrees around top of
clutch/flywheel area.
Automatic: Must remain in OEM or OEM replacement case, with a
functioning OEM appearing pump. Aluminum OEM bellhousing may be replaced with
aftermarket explosion-proof aluminum bellhousing. Original OEM bellhousing must
have approved scattershield constructed of minimum 0.125 inch by three inch
steel, 270 degrees around flexplate. Manual bump starts allowed.
Drive Shaft: Minimum two inch diameter steel drive shaft, must
be painted white. Steel slip-yokes only. 360-degree drive shaft loop required
and must be constructed of at least 0.25 inch by two inch steel, or one inch
tubing, mounted six inches back from front U-joint.
23. ENGINE COMPARTMENT: Engine must be in OEM location. On GM
metric frame, center of fuel pump must be located minimum 1.75 inches in front
of cross member (measured at frame). Ford metric frames must have back of fuel
pump in front of cross member. V-6 engine must be in OEM location. Frame and
cross member may not be altered for engine placement. Engine mount holes cannot
be removed or altered on block. Aftermarket engine mounts allowed, including
mid-plate. Engine must be OEM appearing, must be able to be used in conventional
passenger car without alteration. GM with GM, Ford with Ford, Chrysler with
Chrysler. Radiator must be mounted in front of engine. Cooling system may be
modified. Overflow tubes must be directed to ground.
24. ENGINE SPECIFICATIONS: Any American make engine allowed.
Steel heads, block and oil pan only. OEM passenger vehicle production block
only. No GM Bowtie, Ford SVO or Chrysler W blocks. Castings and fittings cannot
be changed, no machine work on outside of engine. No cubic inch limit. Full
roller rocker arms allowed. Flat tappet cam/lifters only. No mushroom lifters.
Cannot alter lifter bores. OEM cast iron intake may be ported/polished (2010
season – no ported intakes allowed). No bow tie or high rise intakes. Only
unaltered (no porting, polishing, or cooling lines) aftermarket aluminum intakes
allowed are: Weiand GM #7547-1; Ford #7515, #8023 or #7516; Chrysler #7545;
Edelbrock GM #2701, #2716; Ford #7181, #7183; Chrysler #2915. OEM firing order
cannot be changed. Steel or aluminum water pumps allowed. ‘Wet’ sump oiling
system only. Accumulator allowed – cannot be located between seat and door bars.
25. ENGINE CLAIMING RULES:(A) $525 cash, or $100 and exchange,
claim on engine, flywheel and balancing plates, $25 goes to wrecker for pulling
engine. Claimed driver has option of accepting cash, or exchanging engines with
claiming driver.Driver claiming engine may not claim carburetor or shocks on the
same night.
(B) Claim does not include - 1. clutch, 2. pressure plate, 3.
bellhousing, 4. headers, 5. carburetor, 6. starter, 7. motor mounts, 8.
oil/temp. sending units, 9. carburetor spacer, 10. fan and pulleys, 11. clutch
ball, 12. clutch arm, 13. throw out bearing, 14. dip stick, 15. water pump, 16.
fuel pump, rod and plate, 17. distributor, 18. plug wires, 19. water outlet and
restrictor, 20. breathers.
26. EIRI: (Except in rare instances) Decisions of Officials are
final and binding without exception.
573-254-3712