2013
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
.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 STROKERS
OF ANY KIND). 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:
§
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 3.725" min, 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 carburetor or Holley BOX STOCK 4412, NO 4412-S carbs allowed.
§
Cars using the holley 4412 option will NOT be allowed to run any type of
carb spacer.
§
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 aftermarket light weight steel drive shafts.
Tech staff will determine legality of any drive shaft in question.
o
Rear Differential must be locked. No spools or aluminum parts.
3. CHASSIS AND BODY:
o
Stock original unibody with full floor, firewalls, trunks & inner
fenders.
0
Five Star after market bodies
allowed. You may also fabricate your own body. Body panels must be made of
sheet metal (Steel) unless it is a over lay over OEM body. All panels must be
tightly secured to chassis.
o
No hood scoops. No holes in hood.
o
Only stock type rear spoilers allowed.
o
Must be complete body.
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, NO thunder bird parts allowed.
·
Wheelbase from side to side is to be with in
1 margin
o Must have stock suspension.
o No racing shocks or
struts. Stock over the counter replacement only. NO adjustable shocks or
struts allowed. Max price on front strut 100.00 new, max on rear shock 50.00.
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, or anchored within 3 of the end,
and sealed with NO sharp edges 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
Exhaust installed inside the car, must be covered with tin.
o
These mufflers, properly maintained, will produce a 100 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 after market steel
wheels.
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.
o all wheels off-sets must be
within ½ tolerance and No less than 3 min. Due to different manufacture
design. There will be NO leeway on this rule. ½ means
. ½ No more than
that.
o Wheel spacers allowed 1 Max. (1994 and up allowed on front wheels ONLY).
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 up
all four (4) wheels. Brakes may be checked at any time. NO cutting down or
slotting allowed to any brake pads or shoes.
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.
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, spacers and compound.
o
Drive Shaft.
o
Differential.
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. Any item that requires
disassembling for viewing.