2008 HOBBY STOCK BUILDING RULES
FIRE SUITS--NECK BRACES--GLOVES--WINDOW NET OR ARM
RESTRAINTS--FIRE EXTINGUISHER AND 5 POINT HARNESS ARE MANDATORY!!
NO COURTESY NIGHT GIVEN ON SAFETY
EQUIPMENT!!
THOSE
ITEMS NOT ADDRESSED IN THE FOLLOWING MUST
REMAIN STOCK AS PRODUCED BY THE ORIGINAL MANUFACTURER
BODY: 1. Any year model American made car. No front
wheel drives allowed. Wheelbase must be factory stock. No tolerance. No subcompact cars. Rack and pinion cars must be factory
stock parts only. If chassis is altered or steering parts are not stock and in stock location - it's not legal! All uni-body
cars must be tied together. Must have a complete stock factory floor pan and firewall. Trunk area may be cut no further forward
than pinion of rear end. Seats must be in stock location.
2. Complete stock bodies and frame
for that year model. Stock appearing floorboards, rear fender wells and firewalls. Body must look factory stock, may use sheet
metal STEEL OR ALUMINUM on doors and fenders. Bumpers may be square tubing ~ must run inner rub rail ~ minimum size 1 inch
round tubing on rear bumper. Must have tow loops front and rear. Spoilers must not exceed 6 inches. 2 braces allowed, one
at each end and cannot exceed 6" in length. Spoiler must not be wider than trunk lid. Back of body must be enclosed fender
to fender. Rear fender wells may be cut out for tire clearance, must maintain inner fender well that attaches to floor pan.
Factory stock OEM frame front to rear. NO alterations allowed. This includes all cross members. Hood and trunk must be pinned
down. Stock steel hoods or fiberglass hoods. Factory trunk lid or stock appearing aftermarket trunk
lid. Front fender wells may be unbolted and removed. Fenders may be trimmed for tire clearance.
3.
All weight must be added in the form of roll bars or solid weights bolted securely to the frame of the car outside of the
drivers compartment. All weights must be painted white with car number on it. No weights can be mounted above bottom of window
opening.
4. All doors must be secured to body. All window openings must remain factory size.
Must have 3 bars in front of drivers window. All cars must have front dash in stock location. Sheet metal only. Rear firewall
must extend from bottom of rear window to bottom of floor pan. Holes in firewall must be covered with metal or aluminum. May
replace factory dash with aluminum ~ no wider than 12 inches. 1/8" thick doorplate is mandatory. From back of cage to
5 inches in front of seat top to bottom. If enclosed interior must have access panel.
5.
All glass must be removed, including head and taillights. No rear view mirrors allowed.
6.
Gauges may be removed. All flammable interior (carpet, headliner, interior side panel, rear seats, etc.) must be removed.
Racing seat mandatory. Wiring harness may be removed and replaced. Shoulder harness is mandatory. All cars must be equipped
with racing safety-approved seat belts bolted to the frame. No standard auto safety belts allowed. Neck brace and window net
(or arm restraints) are mandatory. A 5 point harness is mandatory! You must have a 12 volt ignition system--no 16 volts.
7. Quick release steering wheel is optional. Quick steer boxes OK. Steering remains in stock position.
8. WEIGHT: 3400 lb. after race with driver. Top 5 cars weigh after heat races when scales are set up. Last
chance transfer spots will weigh. Top 5 will weigh after "A" feature.
ENGINE AND
DRIVE TRAIN:
ENGINE MUST HAVE BEEN AVAILABLE IN THIS VEHICLE. YEAR MAY BE INTERCHANGED. MUST HAVE
180 DEGREE EXPLOSION PROOF STEEL BELL HOUSING
1. Engine must be stock production. Factory
blocks only. No 90 or newer roller cam blocks. No bow tie or aluminum blocks. Casting numbers must be readable by tech official.
No 400 blocks. Engine set back #1 plug even with upper ball joint. Flat top or dished pistons only. Maximum cubic inch displacement
to include clearance and wear is 362 for GM and Ford and 370 for Mopar. All others must not exceed 362 CID.
2. INTAKES: Any production cast iron intake , bow tie cast iron intake or any aluminium
duel plane without air gaps. No porting of the heads or gasket matching of intake or heads. Intake may NOT be reworked under
carburetor area. Carburetor spacer no taller than 1 inch allowed. CARBURETORS: 4412 Holley 2 barrel or stock factory carbs.
2-barrel only. Bottom throttle plate hole 1 11/16 inch. Top 1 3/8 inch. Factory style HEI distributors. No remote coils on
GM distributors. No on board electronic devices capable of storing information allowed. No aftermarket electronic amplifying
devices allowed. Tachometers only.
3. NO flat tappet cams or mushroom cams. No roller hydraulic
cams. Engines must not pull less than 14" of vacuum at 1000 RPMs. All cars will be checked in tech. Zero valve lash is
required.
4. Heads must be stock OEM production only. No aftermarket heads. Casting number must be readable by
tech official. 2.02 - 1.60 valves in GM is the largest size allowed. No aluminum heads or angle plug heads. Aftermarket valve
springs OK. Screw in studs, Roller Rockers allowed.
5. Headers are legal.
6. Factory stock automatics or standard transmissions. Must use stock appearing clutch disc and pressure
plates on steel flywheels only. Stock type factory torque converters required on all automatics. Driver must be able to put
car in gear from park/neutral and move forward and reverse at time of inspection. Must have drive shaft loop. Drive shafts
must be painted white.
7. There is a $125.00 tear down rule on each: pistons, cams, lifters,
rockers & porting heads and
intake; flywheels/clutch; drive line. Driver only may protest.
$25.00 of the money goes into the drivers point fund.
8.Intakes must
have vacuum nipple for tech inspection.
SAFETY REGULATIONS
1. Roll
cages are required. No screw joint fittings allowed. The minimum requirement for all roll cages on all cars shall be an "A"
shaped affair, constructed of at least 1 1/2" OD pipe with bars running from the upper right corner to the lower left
corner, and just the opposite on the other side, forming a "X" as viewed from front to rear. There must also be
a cross bar on top of "A" and 4 bars down the side and 4 bars around the top to complete a caged affair around the
driver. All roll bar pipes must be at least .095 in thickness. Must have 3 kidney bars on the driver side and 2 bars on the
passenger side. FOR 2008 ~ MUST HAVE 4 BARS ON DRIVER?S SIDE. The driver and passenger doors inner liner only may be altered
as necessary to install bars in the door area. No further gutting allowed. Gussets required. Bars may be added to protect
radiator and gas tank areas. 3 1/4 inch bars in front of drivers window are mandatory. 1/8" doorplate is mandatory.
2. Gas tanks must be in stock position. Fuel cells mandatory. 32 gallon maximum. Gas tanks/cells must be
securely installed with 2 inch wide by 1/8 inch steel straps. Pump, racing or aviation gas only. NO nitrous oxide allowed.
TIRES - WHEELS - SUSPENSIONS:
1. IMCA, Street or track tires only. Any asphalt
takeoffs on the front and rear. NO tires softer than a 55 compound allowed. NO recaps. 275/60/15 largest street tire allowed.
All tires must pass tech inspection.
2. Steel racing wheels only. Maximum width is 10".
Right rear bead-lock recommended. 5/8" stud mandatory.
3. Racing springs allowed on
front and rear. Adjustable/Cheater weight jacks on front only.
4. Racing shocks allowed,
must mount in stock location. No heim mounted shocks allowed. Must Have 3 or 4 wheel brakes, valve must be in engine compartment.
After-market brake pedals and master cylinders are OK. Rear suspensions must mount up factory stock. NO alterations. All control
arms must mount up in stock positions. NO aftermarket control arms. No Johnny joints. Any stock American made 1/8 inch steel
straps.
car or 1 ton truck rear ends allowed. All cars must remain on stock suspension for the
car that it is under. NO gold tracks or any form of traction devices allowed. All rear ends must be locked.
GM rear ends MUST have axle retention ( C- Clip eliminators ). A 9 inch Ford housing highly recommended.
GRAND NATIONALS OK