Revised
March 29, 2008
2008 4 Cylinders/Mini Stocks
ANY DRIVER WINNING MORE THAN 5 RACES
IN A SEASON MAY BE ASKED TO MOVE UP A CLASS
General Safety & Procedural
Rules Apply to all Classes unless otherwise specified
The four cylinder stock class is designed with the beginner racer in
mind. The idea behind this division is to keep the car as stock as possible in
order to hold down expenses.
In multiple feature races, full points will be given to the driver for
the 1st feature that his car competes in. Any additional features that the same
car competes in without being qualified through a heat with a different number,
the driver will only receive 1/2 points rounded down if it is an odd number of
points. If driver-car changes are not reported to the pit steward in writing
prior to the feature, the driver competing in the car and the car will be
disqualified and receive no points or money for that event.
1. ENGINE:
o Engine must remain stock as manufactured for
car being used.
o No Plastic Fuel Lines or Filters
o No headers or any racing parts whatsoever.
o No Windage trays
o Flat top or dish pistons only.
o No electric fuel pumps
o 185 pound compression limit, to be measured
with track gauge. No rotary or fuel injected motors.
o .040 cleanup on cylinder bores allowed.
o 1" pipe plug installed in oil pan that
makes viewing of rods and cranks possible with engine installed in car. Must
pull 1" plug or pan for inspection.
o Stock stroke crank shafts only. No light
weight, cut down, or narrowed crank shafts allowed. No knife edging, No
drilling to lighten before balancing, no polishing of counter weights.
o Pistons may not come above deck of block. (exception
o No light weight pistons or rods. OEM replacement only for engine being used. Hypereutectic
allowed. No forged pistons. Exception: 4 cyl Ford may
use late model 2300cc Ranger pistons & rods.
o No high performance ignition or ignition
boxes allowed.
o Cylinder Head:
§
No adjustable timing gears allowed. Ford motors can use multi-key slot
timing gear Part #M-6256-A231.
§
Sand blasting, bead blasting, acid-dipping, porting, polishing, and
welding are prohibited. Special note: Heads will be pulled occasionally to
check for illegal work being done in areas that can't be seen externally. (valve pockets, ports etc).
§
Milling at block mating surface, the legal head thickness on the Ford 4 cyl is 3.750", measured from side surface of valve
cover rail to block mating surface. The
·
Stock OEM Valves Only
§
Only composite OEM head gaskets allowed, no thin metal or copper shim
type or Cometic head gaskets allowed. FelPro and Victor only.
§
Hydraulic or solid lifter cams only as OEM manufactured maximum lift
.460 measured at the cam. Aftermarket cams allowed. No roller cams. Only stock OEM non-roller cam followers or rocker arms on push rod
motors. Ratio used to measure cam
will be 1.640.
o Carburetors:
§
One carburetor only, OEM for engine used, no
modifications.
§
Stock 5200 stock carburetor only
§
Stock carburetor plate or spacer for engine used ,
no tapering or modifications of any kind to said item.
§
Only "1" OEM carburetor to spacer plate gasket allowed
§
No air induction plastic carburetor inserts or other devices to direct
air into intake. No Air diffusers are allowed.
§
May run aftermarket air cleaners.
§
Intake must be OEM as cast, no modifications, carburetor type manifolds
only. No fuel injection manifolds allowed.
2. TRANSMISSION AND DRIVE LINE:
o Fly Wheel - Stock steel, no aluminum etc.
minimum weight 18 pounds. No machining, except for clean up on clutch mating
surface. Note: Fly wheels will be weighed.
Escort flywheels are not allowed.
o Clutch must be OEM type only. No light
weight parts. This means clutch disc and pressure plate. Note: These parts will
be checked and weighed at the discretion of the tech staff.
o Transmission must have all gears working at
all times.
o Drive shaft: steel only, no ultra-light
steel drive shafts.
o Rear Differential must be locked. No spools
or aluminum parts.
3. CHASSIS AND BODY:
o Stock original unibody
with full floor, firewalls, and trunks. & inner
fenders.
o No hood scoops. No holes in hood.
o Stock type rear spoilers allowed. Must be
for the car it is installed on.
o Must be complete body as produced by
factory. Aftermarket fenders, doors and rear quarter
panels allowed. Example: Rayline. Roof, A, B, & C
posts must remain stock. Rear inner fender must be secured to rear quarter
panels.
o
May fabricate frame front & rear using 2x3" tubing from strut
tower in front forward & centerline of rear axle to the rear.
o
Any 4 cylinder sedan, subcompact or compact two door cars: Toyota:
Supra; Ford: Mustang, Escort, Probe, Thunderbird (trimmed two inches);
Chevrolet: Chevette, Beretta, Cavalier, Corsica;
Pontiac: Grand Am, Grand Prix, Sunbird, SunFire;
Dodge Daytona; Plymouth/Chrysler Lazer; Mercury:
Lynx, Cougar, Capri
o No convertibles, station wagons, two seat
sport cars, four-wheel drive, independent suspension or front wheel drive cars
allowed.
o Must be front engine cars ONLY!
o All glass must be removed and a screen
placed in the windshield area.
o Must have front loop.
o Must have a complete 6 point roll cage,
installed in a safe, professional manner. 1-1/4" .095
wall steel tubing minimum with three door bars on driver's side and two door
bars on passenger side.
o All roll cage in driver's area must be
padded.
o Front loop to protect drivers legs and feet.
No sharp pointed objects in driver's area.
o Fuel shutoff must be in reach of right hand
of driver and master switch on left hand side of steering column face of dash.
o Racing Fuel cell is MANDATORY. Fuel cell
must be mounted in a safe and professional manner. Must have
a protection loop behind fuel cell.
o PVC Valve on outside of tank located on vent
tube.
o Fuel cell must be protected front, bottom,
and both sides with minimum 18 gauge steel, minimum 12" from ground.
o Must have firewall between driver's
compartment and the trunk area.
o WEIGHT: 2500lbs. minimum weight with driver
after race. Any weight inside drivers compartments must have a 2x2x1/4
minimum plate on the back side of weight attached with at least two (2) 1/2
bolts to be approved by Tech Department.
o
4. SUSPENSION:
· Racing
Springs are allowed
· All
suspension parts are to be for the chassis being used
· Wheelbase
from side to side is to be with in 1 margin
o Must have stock suspension.
o No racing shocks.
o All front control arms & rear trailing
arm pivot points must be in stock position.
o All cross members must be in stock position,
no slotting of holes or repositioning of cross members to alter the wheel base
or change angle of control arms & trailing arms.
o NO offset bushings allowed. OEM as manufactured.
No drilling to soften or alter in any form
5. BUMPERS:
o Must run a stock type facia/or
bumper front & rear. No aluminum bumpers. No exterior bracing. All exterior
tubing must be round.
o Side rails must have maximum of 1 3/4 O.D.
All tubing must be radiused back into and attached to
the frame or cage, 18 centers from ground.
o Valance bars for fuel tank and radiator only
not more than 1-1/2 maximum size. Face of front and rear loops must be at
least 1/2 behind leading edge of hood and trunk.
o Front and rear tow hooks MANDATORY.
6. EXHAUSTS: Proper installation and
maintenance is the responsibility of the car owner.
o Or any stock roll-beaded muffler.
o Exhaust must exit underneath or behind car.
If inside car, must be covered with tin. No side exhaust
systems.
o These mufflers, properly maintained, will
produce a 95 decibel reading or less measured at the flag stand or infield. Any
car with loose exhaust, lost muffler, or leak, etc. that creates over a 95
decibel reading during any racing event may be disqualified and black flagged
until the exhaust problem is corrected to meet the 95 decibel reading. Any
driver not abiding by this rule may result in a fine ,
loss of points, and loss of point monies. Track decibel meter reading will be
final. This rule is made to protect the drivers, crews and spectators from
hearing loss and preserve the sport of racing now and into the future. Also any
non racing oval muffler of equal or less cost of spec muffler not to exceed 95
decibels will be allowed.
o Exhaust manifolds must be stock cast iron
only with no modifications.
7. WHEELS, TIRES, AND BRAKES:
o Stock reinforced steel wheels ONLY or approved
steel wheels on right side. . Stock wheels on left side.
o No light-weight racing wheels.
Standard weight after market wheels allowed (ex.: Bart Wheels). No re-welded or
altered wheels allowed.
o 7-inch width maximum. 3-inch offset minimum,
measured from the back edge of the rim to the axle mating surface. Must maintain same offset on all four wheels.
o NO wheel spacers allowed.
o Stock tires or recaps on DOT passenger car
casing ONLY. DOT tread pattern.
o Maximum width of 7".
o A minimum durometer
reading of 50 hot.
o No racing retreads, example: Marsh, Diamond
Back,
o No aggressive tread design (ex: Blizzard,
Snow or Ice Winter Tread). Note: All tread designs must meet with approval of
tech staff prior to racing.
o BRAKES: Four (4) wheel brakes required. Must be capable of locking and sliding all four (4) wheels.
Brakes may be checked at any time.
8. APPEARANCE:
o All cars must be neatly and brightly
painted. Dark cars not recommended.
o Numbers must be painted on both sides of car
and on the roof in a color offering distinct contrast to color of car. Numbers
must be legible - 3" wide and 18" high. All numbers will be legible
or they will not be scored.
o One or two digits only, NO LETTERS. Car
numbers must be pre registered with handicapper (Mary Hoose
at 607-535-2003, except Wednesday or Thursday Evenings).
9. SAFETY:
o Must use aluminum high back racing seat or
racing seat with padded head rest that is securely fastened. Full size window
net required on drivers window.
o Must have 5-point racing seat belt harness,
no more than 5 years old, securely fastened with bolts.
o Neck brace is mandatory.
Index
PENALTIES FOR RULE INFRACTIONS
1. DISQUALIFICATION, LOSS OF POINTS, AND MONIES
FOR NIGHT:
o Wheels and tires: size, offset, and
compound.
o Drive Shaft.
o Differential (if it can be viewed with
scope).
o Transmission.
o Ignition System.
o Pulleys and Timing Gears.
o Carburetor, Spacer and intake manifold
(visual)
o External Head measurements.
o Crank and rods
o Failure to make weight.
o
o Brakes.
2. DISQUALIFICATION, LOSS OF 100 POINTS, AND
MONIES FOR NIGHT:
o Anything that requires a tear down of motor
for tech purposes, including removal of head for height measurements. The
pulling of the clutch setup or fly wheel to check weight or material made from.
Index
SECTION 10B
BLACK ROCK BANDITS
2006 4 Cylinder Youth Class
Read Section 1,2,3,4,5,&6 first as they apply to
this class
o Same car may be used in both 4-Cylinder
Stock & 4-Cylinder Youth (Bandit) classes.
o WEIGHT: for Youth (Bandit) Class is 2450
minimum weight with driver after race.
o Must be at least 12 years of age with
Parental Consent Form signed by both parents or legal guardians.
o Must also provide a copy of the Youth
Driver's Birth Certificate to be held on file at the Black Rock
o Youth may race until his/her (16th)
sixteenth birthday and finish the season in the Bandit Class or move up to a
different division.
o Any Black Rock Bandit who competes in an
adult class of any kind will lose all points and will no longer be eligible to
compete in the Bandit Class at Black Rock
O
Any Bandit driver found in line up without neck brace, gloves, racing shoes
or boots will not be let onto the race track.
NO SNEAKERS OF ANY KIND.