TO SPORTSMAN SERIES
(All vehicles must comply with
General Rules, except where exempted in this section)
1. Bodies must be
‘template’ style and may be metal, fiberglass or aluminum. Cars
and/or trucks that vary too radically from stock appearing bodies
will not be permitted to compete. Full bodies only will be
permitted. Maximum height of rear deck for cars will be 36 inches
from ground measured at back edge of deck not including spoiler.
2. No open
breathers permitted. Hood must cover air cleaner.
3. Rub bars are
allowed. No sharp edges will be permitted. Bars must be within
outside edge of tires.
4. Maximum spoiler
height will be six inches. Maximum spoiler width will be sixty
inches. No sideboards or wraparounds permitted.
5. Any and all
glass must be removed. Windshield must be Lexan.
6. Cars and trucks
may not exceed 80 inches in width at widest point.
7. Track reserves
the right to disallow any body style not conforming to the intent of
1. Maximum cubic
inch displacement will be 360 cubic inches.
carburetor will be Holley 500 CFM 4412 two-barrel with round hole.
Top and bottom of carburetor may be checked for 1 11/16 throttle
bore and 1 3/8 venturi. 1-inch maximum carburetor spacer
permitted. No 4-barrel carburetors will be allowed.
3. For Ford, 2.020
intake 1.600 exhaust valves. For Chrysler and GM 2.020 intake and
1.625 exhaust valves. Any type of steel rod will be permitted. No
porting, polishing or deburring will be permitted.
4. Steel blocks
only will be permitted, with maximum bore of .060 over. Cast iron
heads must be used. No porting or polishing allowed. 3.48 stroke
steel crank and any steel rod permitted. No roller cams or mushroom
lifters will be allowed. Heads may have screw-in studs and guide
plate, and may have roller rockers. Cast or forged flat top
pistons allowed. Headers are allowed.
allowable combustion chamber size will be 62 cc.
6. Number 1 spark
plug may not be behind top ball joint.
7. No 400 cubic
inch blocks will be permitted, regardless of actual cubic inch
8. No dry sump oil
systems will be permitted.
1. Weight may be
checked prior to qualifying and after race. Vehicles will be weighed
with driver and helmet included. Minimum weight for all cars and
trucks will be 3000 pounds.
1. All frames must
have stock OEM front clip back to a point where frame runs parallel
with the ground.
wheelbase will be 108 inches, with one inch tolerance.
3. Any OEM or
aftermarket lower A-frames and front spindles will be allowed.
Lower A-frames must mount in stock mounts and in stock locations on
4. Steel hubs
recommended. Aluminum hubs will be allowed
upper A-frames and sway bars will be allowed.
6. Aluminum brakes
will be allowed.
clutches and pedals will be allowed.
8. No aluminum
driveshafts will be permitted.
9. Disc brakes
will be allowed on both front and rear.
10. Minimum frame
height will be three (3) inches from ground, measured at lowest
point of frame.
11. Six-point roll
cage with bars 1 1/2 inches in diameter required. Minimum of three
bars in driver's side door and one bar in passenger-side door
required. All bars subject to track approval.
12. Racing shocks
and weight jacks will be permitted on both front and rear.
13. No coil-over
shocks will be permitted.
14. Maximum of two
springs and two shocks will be permitted in rear.
15. Rear suspension
may be leaf or coil spring. Coil spring suspension must retain five
inch conventional springs. Trailing arms, top link, and panhard
bars may NOT be mounted with any shock or spring devices attached.
E. DRIVE TRAIN
1. 9-inch Ford
floater or standard weight quick-change rearends will be allowed.
No lightweight quick-changes such as Winter Sprint, Tiger, etc. will
be allowed. All rearend housings must have steel axle tubes. No
aluminum axle tubes are allowed. No shock, spring, or rubber
devices will be permitted on top or bottom of rearend.
2. Trailing arms
and third link must be solid bars.
3. Manual or
automatic transmission with reverse gear in working order will be
flywheels and small clutches will be allowed.
F. WHEEL & TIRES
1. No wide-five
wheels will be permitted.
2. 10-inch steel
3. Tires - Hoosier
F40 or F50 scuff will be track tire.
Racing tires must be purchased from official track supplier.
G. ENGINE PROTEST RULE
1. Protest fee
will be $500.
2. Only drivers
taking part in the feature race that evening are eligible to file a
protest. Drivers may only protest a car that finished in front of
them in the feature race.
3. Any driver
wishing to protest another competitor's engine must present the $500
protest fee in cash to the competition director prior to the start
of the feature race.
4. Track officials
will check valve size, CC the heads, check for porting and
polishing, check bore and stroke, and for flat top pistons.
If the inspection reveals the engine to be legal, the protested
car's driver will receive $400 of the protest fee, with the track
receiving the remaining $100.
If the inspection reveals the engine not to be legal, the protesting
driver will be refunded $450, with the track keeping $50.
If the inspection reveals the engine not to be legal, the protested
driver will be disqualified for the evening, will receive no money
and/or points for the evening, and will be subject to suspension.