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STREET STOCK
updated 1/7/07
Cars must be stock type American made two (2)
or four (4) door passenger cars ONLY. Minimum OEM wheel base as specified by
manufacturer 108”. Chevrolet Monte Carlo, Buick Regal, Olds Cutlass, Pontiac
Grand Prix, and Novas will be allowed. Camaros must be 1981 or earlier. (Camaro
on Camaro Frame Only) All bodies must be steel. Any steel factory style OEM body
is permitted, and must have factory hood, truck, roof, fenders, doors, and
quarter panels. No after-market bodies, no stock car style bodies, no aluminum
bodies. Note:1981-1988 Performance Bodies street stock Monte Carlo steel body is
the only after-market body allowed. Wheel base as measured at the tech pad will
have minimum of 107.5”. Frame and/or wheel base may not be altered to change
the original wheelbase. Ballast allowed, must be welded or bolted to the frame
or roll cage structure with a minimum of two 1/2” bolts per 100 pounds.
Minimum of two (2) bolts per piece/location. Bolted ballast must be painted
white, and car number must be on ballast. NO liquid ballast.
WEIGHT: 3300 lbs. Minimum with driver after
heat and feature event.
ENGINE SPECS
Any engine found to be illegal will include
disqualification from that event and forfeiture of points, money and trophy,
plus forfeiture of points from all previous races through that date. An illegal
engine consists of any illegal parts found horizontally from the fan blade
through the flywheel and vertically from the oil pan through the carburetor.
Maximum of 361 cubic inches. Ford, Dodge, and GM are allowed
Engine displacement formula for determining cubic inches is: bore x bore x .7854
x stroke x number of cylinders = cubic displacement. Any engine exceeding
maximum allowable cubic inch displacement limit will cause disqualification.
Only cast iron OEM production blocks
allowed. NO bowtie, Dart, Little M., Ect.
GM chassis – GM block
Ford chassis – Ford block
Dodge chassis – Dodge block
ANY cast or steel crankshaft
allowed with a 50 lbs minimum weight limit. After market fluid dampeners allowed
ANY steel connecting rod allowed. Aluminum rods PROHIBITED.
Pistons may be flat top (2) valve relief or OEM equivalent. NO domed
pistons! Cast or forged OK. Any type pistons rings allowed. Must have a minimum
of (2) compression rings and (2) oil ring. Floating wrist pins are allowed. NO
titanium. Engine block permitted a minimum of .0 deck clearance. Piston must not
hit straight edge held over cylinder while engine is cranked with starter.
Any camshaft: solid or hydraulic. NO rollers or mushrooms. NO oversize lifters.
NO dry sump oil systems or vacuum pumps.
CYLINDER HEADS
Note: Casting numbers must remain in cylinder
head or head is illegal. Retains to manufacturer, part # and intake port runner
size. Also, NO o-ringing of block to mate head gasket with block and head.
Any 23 degree heads cast iron ONLY. NO more than 200cc on intake runners.2.02
intakes and 1.60 exhaust valves maximum.
NO acid dipping, porting or polishing. Heads maybe flat or angle milled.
Screw in studs, pinning and guide plate allowed. NO titanium, valves or
components.
Any work done in the bowl area must be done with a 360 degree cut, with the
valve guide as the center point.
Full rocker arms are allowed. Roller tip rocker arms are allowed. Polylocks are
allowed. Stud girdles are allowed.
NO Jessel or similar allowed.
NO aluminum or titanium is allowed.
Any breather/valve cover combination is allowed.
ENGINE LOCATION
Minimum engine height is 10” from the ground
to the center of the crankshaft. This will be measured on the front of the
crankshaft/pulley.
ENGINE SETBACK is #1 spark plug even with ball joint or forward.
Side engine mounts may be 45 degree style, steel ONLY. Rear motor plates
allowed.
Firewall setback is allowed.
CARBURETOR
Holley 2 Barrel #4412. Choke horn must be
attached. List # must be legible on air horn. Circle track floats may be used.
NO other alterations are allowed.
GASOLINE ONLY! Carb spacers/adapters allowed. Must NOT exceed 1¼” in
thickness. NO injectors or pressure systems allowed. Tech Official’s may use
any inspection procedure, including Test Gauges. Any cast iron or aluminum
intake manifold allowed
Rochester Quadrajet: any cast iron or aluminum manifold providing it has a
rectangle bolt pattern which has dimensions of 4 ¼” x 5 ⅝”. NO
SPACERS OR ADAPTERS ALLOWED. Examples of legal aluminum manifolds running
Quadrajet carburetors are as follows: Performer RPM Q Jet #7104 or performer
Vortec #2216.
Note: No Brezensinki or special order intake allowed. NO tin intakes. NO tunnel
rams. Any brand / style / size of air cleaner are allowed, but no kind of RAM
air, or forced air induction is allowed. NO coating, NO acid porting, NO
porting, polishing or port machine or intake manifolds, intake manifold may not
be altered in anyway. NO vacuum leaks between the intake valve and the top of
the carburetor.
IGNITION
Stock or replacement ignitions ONLY.
HEI must remain in one unit. NO external coils allowed. MSD or any module may be
used as long as it fits inside the cap with no alterations. Vacuum advance may
be removed and the pick-up coil locked. Must be stock appearing housing and cap.|
MSD Boxes (6A, 6AL, 6T ONLY) are allowed on Ford and
Chrysler engines ONLY. Any after market or GM electronic boxes are NOT Allowed
on GM.
NO racing ignitions, crank triggers or magnetos.
EXHAUST SYSTEM
Cast iron exhaust manifold is allowed. Street
headers are allowed and Schoenfeld headers are allowed. Maximum 3½ OD. No 180
degree or over the top of engine exhaust allowed
Header must be under chassis style, exhaust must run past the front edge of the
Driver seat or outside of the car
RADIATOR
Only one (1) radiator is allowed. Radiator
must be mounted in the stock location.
Radiator may be aluminum.
Racing radiator cap is allowed.
Must mount radiator overflow through the frame and exit the frame under the car
just behind the right front wheel.
NO electric cooling fans.
FUEL
GASOLINE ONLY. Racing gas is allowed. NO
ADDITIVES. NO ALCOHOL. NO NITROUS.
FUEL PUMPS
NO electric fuel pumps. ONLY stock mount push
rod activated pumps are allowed.
Holley and Carter style are allowed.
FUEL TANKS
Maximum 22 gallon fuel cell. Must be in can.
Fuel cells ONLY. Must be securely mounted inside trunk area ONLY, must be
between frame rails and must be totally enclosed from the driver compartment. A
minimum of two (2) fuel cell straps 2” x ⅛” required to secure fuel
cell. Fuel cell with a rollover valve is required.
Fuel cell protection bar is required. Must be a minimum of 1½” x .095”. It
must protect the fuel cell from the rear. It must be as low as the fuel cell,
and extend from side to side as wide as the fuel cell. It is recommended that
this bar be attached to the frame, NOT the bumper. If the fuel cell protection
is not present the car will NOT Be allowed to continue racing. The fuel cell
protection bar must be attached to the frame.
TRANSMISSION
Any OEM automatic transmission is allowed.
Unit must be stock and have a working torque converter. NO direct drives, valved
pumps or bleeder valve bodies. All forward and reverse gears must be in working
order, except Powerglide. Powerglide is allowed either or both forward gears,
with neutral and reverse in working order.
Standard transmissions must be stock, with all gears working, with minimum of
10.5” clutch, pressure plate and full size stock flywheel. NO mini-clutches,
or direct drives. Standard may use stock aluminum flywheel.
All standards must have bell housing made of ¼” thick steel and cover 180
degrees over the sides and top of the clutch assembly.
NO 2, 5 6 speed manual transmission. NO overdrives or overdrive units. NO Bert
or Brinn style transmissions allowed..
NO ram couplers.
Quick-change transmissions or transmission adapters for gear change are NOT
allowed.
Car must be self-starting and having working neutral, reverse and forward.
Transmission coolers are allowed. If exposed to driver, it must be shielded in
case of leaks.
Automatic Transmissions must have a scatter shield, minimum 3/16” x 4” wide
steel. May be attached to the bell housing or the floor pan.
DRIVESHAFTS
Driveshaft must be steel, and must be painted
white. Must have a steel driveshaft loop (360 degree) connected to the frame
within 6” of the front driveshaft u-joint. Minimum of 2” x ¼” or minimum
of 1” round. NO chain loops allowed as front loops.
REARENDS
After-market axles, studs, and mini-spools are
allowed. NO posi-trac, or limited slip style rearends. Rearend axles must be
locked together.
9” Ford allowed.
Any gear ratio may be used if no alteration to housing is required.
Bolt pattern on the axle / drums may be changed.
Wheel adapters are allowed.
Rear end may be locked by welding spider gears, using a mini-spool or with a
full spool. NO aluminum.
NO quick change rearends.
Floater rearends Ok.
Disc brakes are allowed. Steel components ONLY. Single piston ONLY.
BRAKES
All components at wheel must be stock OEM.
Except disc must be steel.
Dual master cylinder after market brake pedal is allowed.
Rear brakes may be disc.
An adjustable proportioning valve may be used. May not be in driver’s
compartment.
Minimum of three (3) working brakes is required. If using (4) brakes a shut off
valve may be used for the fourth brake.
If using three (3) brakes, the fourth brake assembly need not be present. If the
fourth is the right front, the caliper and the rotor may be removed. Spindle to
remain unaltered.
Cooling holes may not be drilled in any brake component.
STEERING
Quick release steering wheel is mandatory.
Quick steer is optional. NO chains or sprockets are allowed in the steering
system. D & M OK.
Steering left of drive train ONLY.
Bump steer cannot be adjusted. Center link, inner tie-rods, outer tie-rods or
sleeves cannot be altered.
Power steering is allowed. After market power steering may be used.
NO rack and pinion steering. Stock OEM steering box must be used.
SUSPENSION
Upper control arm brackets may be moved for
caster and camber adjustment. Must use stock OEM upper control arms and
brackets.
Upper and lower control arm bushings may be after market.
Lower control arms and brackets must be stock OEM.
Uppers and lowers must match make, model and year of frame.
If used, sway bars and brackets must remain stock. Bushings may be after market.
Racing springs are allowed. Adjustable spring buckets are allowed. Jack bolts
are allowed
Spindles and rotors must remain stock for year, make and model. Spindle may be
reamed for bigger ball joints. NO grinding or lightened parts. ⅝” studs
are allowed in any bolt patterns.
Tie-rods, center link pitman arm, steering box and idler arms must be stock for
year, make and model.
Larger size press-in ball joints may be used. NO mono-ball joints allowed. May
be welded.
If rear coil spring car, lower rear end trailing arm brackets maybe moved for
pinion adjustment. Metric cars must retain all four (4) links, and must match
year, make and model (OEM). NO suspension parts may be altered or lightened on
leaf spring cars. Must remain stock for year, make and model of car. Must be
Ford on Ford, GM on GM, Dodge on Dodge. No After-Market suspension parts, such
as panhard bars, j-bars, hard bars, pull-bars, etc.
Ford 9” rearend is allowed on any make and model.
Wheel adapters are allowed with 5/8 studs.
Non-Adjustable lowering blocks allowed, two (2”) inches max. Sliders or
shackles on leaf springs maybe adjustable.
After market steel leaf and coil springs are allowed. NO coil overs. NO
fiberglass, etc.
Rear coil springs ONLY, may use maximum two (2”) inch spacer welded to frame
or rear housing. Adjustable coil spring spacers allowed, front and rear.
Aluminum suspension parts are NOT allowed, even if it fits year, make and model.
SHOCKS
Shocks must be steel, may be after market.
Front & Rear: any steel shock, and may be relocated.
One shock per wheel.
NO more than four (4) shocks on car.
FRAME
Frame must match year and make of body.
Complete and unaltered OEM Frame (front suspension to rear suspension) as per
OEM specifications is required. NO complete or partial tube chassis. Can plate
frame.
On 1978 – 1987 metric frames the outside of the frame may be altered for right
front tire clearance.
Frame or brackets can not be cut, bent, or altered to change suspension.
Uni-bodies must be tied together from front sub-frame to rear sub-frame.
ROLL CAGE
Roll cage material must be a minimum of 1½”
x .095 wall thickness round steel tubing. Must be box type cage, four (4)
uprights connecting tubing on roll cage. Roll cage must have rear supports going
down to the frame and may extend into the trunk area, and diagonal tubing is
required to keep the cage from moving from side to side. Roll cage must have
minimum three (3) door bars ( 1½” x .095). The center of the roll cage
and driver's seat may be no further back than the third (3rd) body mount bushing
frame hole for metric frames. All welds must be complete and pass safety
inspection by tech personnel.
NO iron or square tubing allowed in main section of the cage.
NO brazing or soldering.
NO aluminum cages allowed.
A minimum of two (2) bars, (engine bay bars) one (1) per side, may extend from
the main roll cage to points on the main frame in front of the upper control
arms, These bars may have three (3) additional braces per side to the main
frame.
A minimum of two (2) bars may extend to rear of main frame from the main cage.
X-bracing is allowed, including frame to frame under the driver.
Driver’s head must NOT protrude outside of the cage with helmet on.
Cutting of the floor is limited to cage placement and / or sub-frame connectors.
Replacement must be made with a minimum of 20 gauge steel.
HOOD
Hoods and trunk lid must have quick
release system (hood pins).
Hole may be cut in hood for air cleaner. Air cleaner can not extend more than
four (4”) inches above hood. Hood scoops allowed.
Hood and trunk lid may be a single layer of material.
Hood must set flat on the deck, firewall or the dash and provide a seal.
FENDERS
Front inner wheel wells may be removed.
FIREWALL
Holes in the firewalls must be covered with 20
gauge steel. For driver safety, the firewall must provide a seal with the hood,
from the engine compartment.
FLOORS
Must be stock, NO cutting except for roll
cage, bracing and sub-frame connectors. If the floor is rusted it must be
replaced with minimum of 20 gauge steel.
NERF BARS
One single nerf bar between the front and the
rear wheels, on each side of the car is allowed. Maximum size 1½” x0.95”.
This may be rectangular tubing, a maximum of 2” x1”. They are to be attached
to the cage at the front and rear sections of the nerf bar. Maximum of two (2)
supports allowed for the nerf bar. NO center supports are allowed on the nerf
bar.
Must have rounded or tapered ends on front. NO sharp edges or corners. The rear
of the bar may be squared off but must be capped. Nerf bars cannot extend more
than 2½” from widest part of door. Any nerf bars in front of front tires or
behind rear tires may be no wider than stock bumper. NO sharp edges allowed.
BUMPERS
Front and rear OEM style bumpers are required
to start heat and feature races.
Front bumper must be securely fastened. After market noses may use after market
bumpers.
Bumpers or wrecker loops are required on front and rear, without the time delay
of removing the hood. Two (2) hooks required front and back.
Bumpers must NOT extend wider than outside of rear tires.
WINDSHIELD BARS
A minimum of three (3) vertical windshield
bars are required. Must be a minimum of 5/16” diameter steel, welded to the
cage, and mounted in front of the driver.
SPOILER
Spoiler limited to 6 inches.
INTERIOR
Any oil or transmission fluid coolers in the
driver’s compartment must be configured to shield the driver in case of leaks.
The cooler lines must be incased in tubing, rubber, or steel may be used. Sheet
metal interiors OK
IGNITION SWITCH
All cars must have ignition switch clearly
labeled.
The car must be equipped with a kill switch to be located within reach when
standing outside of the car and easily accessible to emergency personnel.
BATTERY
Maximum of 1 battery is allowed. Battery
disconnect is required. Must be located behind the driver at deck height.
Must be securely mounted. NO batteries in driver’s compartment.
Battery may be charged by an alternator.
TIRES AND WHEELS
Asphalt pull offs mandatory
American Racer, Hooser, ect.
Sizes 26.5/10.0-15s
Sizes 27.0/10.0-15s
Hooser 245/60-12, 255/60-15 or 265/60-15
Medium compound tires only.
Asphalts pull offs are mandatory all the way around.
Asphalt
pulloffs will also be allowed with a durometer reading of noless than 50 after
the races
but may be cold checked before races with a reading of 63.
durometer readings is for all
tires.
max tread width is 11.5 in on a 10 in wheel
Grooved and stiped tires are allowed.
Steel wheels ONLY. Maximum wheel size allowed is 15” x10”.
One (1) beadlock is allowed. It is allowed on the right rear. Beadlock outer
rings may be steel or aluminum.
1” O.D. lug nuts are required. ⅝ lug studs are recommended.
Wheel spacers may be used with 5/8 studs only.
Wheel adapters will be allowed.
SCORING
Numbers must be 24” high and 4” wide on
both sides of the car, and 28” tall on the roof and positioned so it can be
read from the passenger side. Cars must be painted and numbered neatly and to be
seen easily by the scorekeepers. The number on the roof is the most important
number. Reflective vinyl is NOT recommended for roof application due to the
readability. When positioning the number on the roof it should be readable from
the passenger door.
SEAT
Aluminum racing seats with right side rib
protection is mandatory. A seat that provides both left and right side rib
protection is recommended. Seat must be securely mounted. The racing seat must
be bolted to a reinforced cross member and bracket(s). This cross member must be
welded to the roll cage, not just the floorboard. The back of the seat must be
supported and bolted to a flange that is connected by weld to the cage.
SAFETY HARNESS
Racing type 5-point seatbelts are MANDATORY.
All 5 belts MUST be fastened while driver is in car and on racing surface. They
must be securely mounted with ½” bolts and tabs welded to the cage frame.
They MUST be LESS than five (5) years old. If the SFI tag is not present or it
is illegible, the belts will be deemed ILLEGAL.
WINDOW NET
A window net with a quick release is REQUIRED.
No Sprint Window Nets.
HELMET
Approved helmets ONLY. Helmets must be
full-face Snell 90 or newer and must have Snell sticker clearly visible inside
the helmet. Snell ratings of M90, M95, M00, SA90, SA95 and SA00 are legal. If
the Snell rating tag is not visible or legible, then the helmet is NOT approved.
PROTECTIVE CLOTHING
All drivers are required to wear driving suits
that are made of fire retardant material that effectively covers the driver’s
body (multi-layer recommended). Neck brace is mandatory. Driving gloves and
shoes are strongly recommended but not mandatory.
OTHER
A minimum of one fire extinguisher is required
in each trailer pit area.
Protests:
Protests will only be accepted for performance items: Engine, drive train,
tires, wheels, fuel, and/or all suspension.
Protest must be filed with the Head Tech Official, and the protesting driver
must be registered in that class and must be competing in that particular
feature. The protest fee must be in cash and be accompanied by a fully completed
GTRP Protest Form. The completed GTRP Protest Form and the appropriate fee in
cash must be in the possession of the Head Tech Official prior to the start of
the A-main and cannot be withdrawn. The protested car must report immediately
after the race to the tech pad. Any car not submitted for tech or protest
inspection will be disqualified. This disqualification will be treated as a
Technically Illegal Disqualification.
•Visible protest: $100.00 per item protested. If the protested car is legal,
$75.00 goes to the protested car and $25.00 goes to the drivers point fund. If
the protested car is illegal, the $100.00 is returned to the protestor.
•Non-visible protest: $200.00 per item protested. If the protested car is
found to be legal, $175.00 goes to the protested car and $25.00 goes to the
drivers point fund. If the protested car is found to be illegal, the $200.00 is
returned to the protestor.
•First Offense: Driver loses money and points for the night.
•Second Offense: Driver of the illegal car will be fined $100 in addition to
losing money and points for the night. This money will be put into the GTRP
drivers point fund. If the illegal driver does not pay the fine by the next
scheduled event for that class of car, the driver will be barred from racing at
GTRP until the fine is paid, plus four (4) weeks of regular weekly series
racing.
•Third Offense: Driver is suspended for the remaining racing season.
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