|
BODY:
The car must retain its original appearance and profiles. Aftermarket
fiberglass parts are limited to hood, fenders, deck lid and bumpers,
One piece front-ends are allowed, but must retain factory grill, head
lights, and marker lights (no fake or airbrushed grilles allowed).
Aftermarket wings and spoilers are permitted, but may not extend more
then 15 inches from the transition point with the body to the tip. The
driver and passenger doors must be fully operational and must open from
the outside
FIREWALL:
Must retain factory unaltered firewall, in factory location. A cosmetic
overlay is permitted.
INTERIOR:
All factory interior pieces including pedal assemblies must be in
factory locations. Factory door panels and dashboard are required. Back
seat may be deleted.
WINDOWS:
Lexan permitted. We encourage all racers who use lexan to keep the
overall look of the windows as close to factory appearing as possible.
CHASSIS / SUSPENSION
FRONT SUSPENSION:
Suspension components must all remain in stock locations. Direct
bolt-on A-arms are
permitted. Tubular K-members that are a direct bolt on are permitted.
Vehicle must retain factory
shock system (Struts or relocated shocks are permitted only if one of
the approved front end kits listed below are installed with no
modifications from the aftermarket specs..) Sway bars may be
removed. These Aftermarket Bolt-on Front Ends are legal; Chris Alston's
No-Fab, TCI, AJE or Smith Racecraft Front Suspension kits for Chevy II,
Early Camaro's & Nova's are legal. Since there are many
new and improved kits on the market, Please call for prior approval of
whatever kit you choose to run.
REAR SUSPENSION:
Bolt on traction devices are permitted. Leaf springs may be relocated
for tire clearance purposes. Mini tubs are permitted, no full size
wheel tubs will be allowed. Ladder Bar Type Suspension with
Factory Frame Rails will be legal, but will receive a 100lb weight
penalty.
*Any car using rear Coil-Over Shocks that include Coil-Over Springs
will receive the 100lb ladder bar weight penalty (If you already have
the ladder bar weight add, there is no additional weight add for
Coil-Over's)
DRIVE TRAIN
AUTOMATIC TRANSMISSIONS:
Any OEM automatic transmission permitted. Aftermarket torque converter,
shift kit, valve body, shifter, and pan cooler use are permitted. Trans
brakes are permitted. All shifts must be made manually without
the aid of electric, hydraulic or pneumatic devices.
MANUAL TRANSMISSION:
All shifts must be made manually without the aid of electric, hydraulic
or pneumatic devices. Any manual transmission is allow. NO multi
disc adjustable clutches allowed.
REAR END:
Any factory type rear end is allowed.
ENGINE:
No cubic inch limits.
ENGINE BLOCK:
Aftermarket Cast Iron & Aluminum (Add 50 pounds "Aluminum
blocks only") production blocks are allowed. Aluminum blocks
permitted at no weight penalty only on vehicles that came factory
equipped and using OEM power plant.
CAMSHAFT:
Any camshaft allowed
CARBURETOR / THROTTLE BODY:
Any single or dual carburetor or throttle body set-up is allowed
EFI:
Any EFI system is permitted
ENGINE MOUNT LOCATION:
Engine must remain in stock location. Engine may not touch the factory
unaltered firewall. Motor plates are permitted.
HEADS:
Aftermarket cylinder heads, aluminum or cast iron are allowed (No
Billet Heads Permitted), Aftermarket Spayed, Symmetrical or
Canted Valve, Big Chief, or any "Pro Stock" style heads are permitted
with a weight penalty. CFE "Pro King" & Edelbrock "Victor II" will
also receive slight weight penalties.
NITROUS:
Any nitrous combo is legal, but cannot be used with any other power
adder.
TURBOCHARGER:
Single turbo: max 118mm, Twin turbo: 88mm max
EXHAUST:Production type mufflers or collector
mufflers are required. Modification or removal of muffler internals is
prohibited (no gutting permitted). Exhaust must be pointed towards the
rear of the car or out the side but in no circumstance can the exhaust
be directed upwards.
TRACTION CONTROL:
Not Permitted & Strictly Prohibited
ON BOARD DIAGNOSTICS /
DATA RECORDERS:
On board diagnostic computers and recorders are permitted. Memory and
playback tachometers are allowed.
STEERING:
Rack and Pinion allowed on all vehicles.
STREET LEGAL REQUIREMENTS:
All cars are required to have working headlights and tail lights
(headlights doors must be fixed open or work manually or automatically
on cars so equipped). Brake lights, turn signals are required All cars
must have registration and be insured during the race event.
TIRES:
Front tires must have a minimum tread width of 4.5 inches. Front tires
do not have to be DOT
approved. Rear Tires...
MICKEY THOMPSON
Street Radial
You can run any kind of sticky tire
235/60r15
you
choose as long as it is shorter
275/50r15
than 28 inches tall 11.50 width
255/60r15
stated on the sidewall. Metric is a
27560r15
“275”
255/50r16
275/40r17
Street Radial #2
205/50r14
215/60r14
205/50r15
225/50r15
ET street
26x10.50r15
26x11.50r15
27x10.50r15
28.11.50r15
26x10.50r16
26x11.50r16
28x11.50r16
26x11.50r17
HOOSIER
Drag Radial
225/50r15
275/50r15
275/60r15
225/50r16
255/50r16
225/45r17
245/45r17
275/40r17
Quick Time Pro (ET Street)
26x9.50r14
26x9.50r16
26x9.50r15
26x11.50r15
27x10.50r15
27x11.50r15
28x11.50r15
ALL OE TIRES ARE ALLOWED AS
LONG AS IT MATCHES TAG ON CAR.
WEIGHT GUIDE
Base Weight (All weights are race-ready, car with
driver)
4 Cly W/Any Power
Adder................................................2600 lbs
V/6
W/Nitrous....................................................................2700
lbs
V/6 W/Turbo or
Blower.....................................................3000 lbs
Small Blocks
W/Nitrous.....................................................2700 lbs
Small Blocks W/Turbo (up to 91mm) .................................3150
lbs
Small Blocks W/Turbo (91.01 to 94mm) .............................3300
lbs
Small Blocks W/Turbo (94.01
to 98mm)..............................3425 lbs
Small Blocks W/Twin Turbo (72mm ea) ............................3425 lbs
Small Blocks Up To 355ci
W/Supercharger (F2 MAX).........3325 lbs
Small Blocks 356ci and up W/Supercharger (F2 MAX).......3375 lbs
Big Blocks Nitrous up to
550ci............................................3000 lbs
Big Blocks Nitrous 551ci to
600...........................................3150 lbs Big Blocks
Nitrous 601ci and Larger...................................3200 lbs
WEIGHT ADDS & BREAKS:
Add 50 lbs. For any Sheet Metal or Composite Intake
Manifold.Add 25 lbs. For Dry Sump Oiling System
Add 75 lbs. For Use Of A Billet Turbo
Add 50 lbs. For Aluminum Engine Blocks
Add 50 lbs. For Small Blocks using CFE "Pro King"
& Edelbrock "Victor II", Yates High Port (part #'s 6049SC1 &
6049C3H) Edelbrock (SC-1), Brodix (BF 200 & 300 Series) (Brodix CV
SP265 & SP330) or similar Canted Valve and any Symmetrical Cylinder
Heads.
Add 100 lbs. Small Blocks using Dart "Little Chief" CFE
"SBX" or Similar Style Heads
Add 50 lbs. For Big Blocks Using Dart 383 Oval Port Heads Or Similar
(Conventional Head with valve angle +/- 3 degrees From Factory)
Add 100 lbs. For Big Blocks Using any Canted, Splayed
Valve, Pro Stock or Big Chief Style Cylinder Heads
Add 100 lbs. For Ladder Bars and or Coil Over Rear
Suspension.
Deduct 400 lbs. For no Power
Adder.
All cars running faster than
7.50 require a roll cage see ihra spec