THUNDER
VALLEY RACEWAY
SUPER
STOCK
2010
2011 Rules
The
following rules are for the Super Stock class for the 2010
2011 race season. Interpretation of, or
amendment to these rules may be made at anytime. The rules and or regulations
set forth herein are designed to provide for orderly conduct of racing events
and to establish minimum acceptable requirements for all such events. These
rules shall govern the condition of all events; all participants are deemed to
have complied with these rules. No expressed or implied warranty of safety
shall result from publication of, or compliance with these rules and or
regulations. They are intended as a guide for the conduct of the sport and are
in no way a guarantee against injury or death to participants.
Two way radios allowed for safety, pending track approval.
EACH DRIVER AND CREW IS RESPONSIBLE FOR KNOWING THEIR RULES AND TRACK POLICIES!
1. Vehicle:
1. Vehicle must be American stock passenger Vehicle with
complete factory steel Appearing bodies and tops. No convertibles or
station wagons.
2. GM any 108” minimum wheel base with full frame sedan type
auto.
a. Ford any 104” minimum wheel base unit construction car with
modified strut suspension (spring and street stock).
b. Chrysler any 106” minimum wheel base unit construction car
with A frame, torsion bar construction.
2. Weight
1. 3000 lb. car- a car with a 10:1
compression ratio, or less, engine. 1314 lb minimum
right side weight. left side weight
1686.
2. 3200 lb. car- a car with more than a 10:1 compression ratio
engines or a car with more than 360 cubic inches of displacement. 1400 lb. minimum right side weight, left side weight 1800.
3. Fuel weight allowance is one pound per lap in the same
portion as above.
4. Cars with fiberglass/composite body components add 40 lbs
to the right side
5. Crate engine cars must meet Thunder Valley Raceway 3200
3000 lb
weight requirements for this class. See footnote.
6. WEIGHT PENALTIES WILL BE ADDED IN 25 LB. INCREMENTS FOR
EACH INFRACTION OVER THE CURRENT WEIGHT OF YOUR CAR.
3. Body
1. Hoods and trunk lids must remain stock and may be gutted.
2. All spring type devices must be removed from trunk lid.
3. Front fender wells may be removed.
4. Fenders may be reasonably trimmed for tire clearance only.
5. No radiator fill holes allowed in
hood.
6. No altering or channeling of body.
7. Factory bodies only, body may be interchanged on car
frames. No homemade body parts, with the exception of door panels Fabricated body panels
must be 22Ga steel and resemble factory stock.
8. Lexan windshields may be used in all cars.
9. Front firewall must be complete and in stock position. Firewall
must be complete stock or fabricated “footbox” 18Ga.
Min.
4. However, if car has been rebodied,
only the driver’s side is required.
5. All holes in firewall must be covered and must seal engine
area from driver. If rebodying with newer model body,
firewall modification must use a minimum of 18 gauge weld able steel (no
aluminum or galvanized materials).
6. 1/8” steel floor pan plate from under the seat to the heal
area of the firewall must be welded in. Floorboards may be patched or repaired
for safety requirements. All patches must be securely welded.
7. A complete steel rear firewall must seal the trunk area
from driver compartment., and must include a
rear window shelf.
8. The trunk floor must be in place and complete unless a
modified rear stub has been added which requires a fuel cell.
9. Remove all side glass, upholstery, rear seats, molding,
etc...
10. Pad or remove all dangerous objects in drivers’
compartment
11. All doors must be welded.
12. Rear quarter windows or opera windows may be lexan with no exposed edges.
13. No functional fresh air hood scoops. No aftermarket
scoops.
14. No skid-skirts, flattops, front spoilers, slant
roof, or slant windshields. 4” of clearance all around the car, except the
exhaust with the driver in the car.
15. An outer, 1” square rub rail next to the body is
permitted, flush mount only.
16. 20. Aftermarket pedal assemblies allowed. Approved Johnson
bar is OK.
17. All throttles must have a minimum of 2 return springs.
18. Steel plate on left side door mandatory. 1/8” metal plate post to post, top to bottom. On unibody add a bar post to post, weld to door sill.
19. Numbers must be painted on both doors of the car
and on the roof facing the grandstand; numbers also must be on the upper right
of the windshield 6” to 8” in height. A number will also be placed at the rear
of the car. and a 6” number at the headlight
position.
20. Numbers must be 16” in height and 3” wide. Two digits only
but may include 1 letter for duplicate numbers.
21. Cars coming from other tracks or circuits that have
matching numbers with another driver will add a letter before or after their
number, or change to a new number that is not currently in use.
22. Cars must maintain a neat appearance.
23. All drivers must register their car numbers with the
association; previously used numbers will have preference. Two
digit number maximum.
24. Front and rear bumpers must remain stock in appearance for
make of car, Subject to inspectors’ discretion.
25. Heat and bend bumper ends if necessary to protect from
cutting tires or hooking other cars.
26. Aftermarket or homemade nose and tail pieces permitted. 4” rear spoiler permissible on trunk lid. Must
not interfere with opening and closing of trunk and not to exceed the width of the
trunk rear deck surface.
27. No inside reinforcing permitted of bumpers that is heavier
than the original. No plastic bumpers. Recommend .095 steel pipe,
1 3/4” maximum.
28. Heat shield padding is recommended in drivers’ area.
29. CHASSIS
30. ROLL CAGE AND FRAME WORK STRUCTURAL ADDITIONS
1. Cars must have 8 point perimeter roll cage (no offset roll
cages allowed).
2. Cars must have door bars on both sides of the car, with a
minimum of 3 side bars on the drivers’ side door which must be plated to the
top of the door and 2 right side door bars.
3. Material used must be a minimum of 1 3/4” in diameter with
walls not less than .095 of an inch thick.
4. No pipe fittings, square tubing, galvanized pipe, exhaust
pipe or conduit pipe allowed.
5. Some type of X-brace must be installed between roll cage
uprights.
6. All welding must be electric.
7. All corner welds must be gusseted.
8. Drill 1/4” hole in left and right uprights for inspection
purposes.
9. Jarvis bar- a bar from left front of roll cage post to left
rear roll cage post approximately 6” up from frame recommended (1 3/4” x .095)
or equivalent. Foot and leg protector bar from behind left front wheel to left
front roll cage post.
10. Unibody sub frame connectors are
permitted.
11. Rebuilding of rear stub: Start at center line of
rear axle, straight back horizontally, 2 parallel frame members of 10” minimum
outside circumference, 1/8” thick tubing, or stock frame rails of equal
dimensions ( square, rectangle, or round).
12. Rear frame kick up may be reinforced (all cars).
13. No front bull work or reinforcements in front of A-frame. Must be behind radiator.
14. Front and rear wrecker hooks required, and must be painted
orange and easily visible.
15. All ballast (extra weight) added must be painted white and
securely fastened into car with car number clearly marked on the weight.
16. Frame rails on 108” and all unibody
cars may be reinforced.
17. Radiator protection will consist of 1 horizontal pipe of
not more than 1” diameter and one brace on either side of radiator to the frame
of the same diameter. No plating allowed. This must be positioned behind the
grill opening. 1” square tube may be mounted between frame rails in front of
radiator in unibody cars.
18. Rear bumper hoop is permitted. 8”
maximum height, 3” wide, 1 3/4” diameter. No wider than frame inside
sheet metal.
31. SUSPENSION: ALL SUSPENSION PARTS MUST BE FOR
AUTOMOBILES ONLY
1. Suspension system must remain completely and strictly
stock, no modifications permitted, no modifications on
any control arm, except as noted below.
2. Rubber, urethane or plastic control arm bushings only front
and rear. Sway bar bushings may be plastic. Upper control arms may be
reinforced.
3. Tubular upper or a A-arms are okay as long as they
follow these guidelines:
a. Must mount to stock mounts in stock location.
b. Steel construction only ((steel pivot shafts only (no
aluminum).
c. One-piece style allowed. Adjustable Heim style prohibited.
d. Conventional style bolt on ball joint allowed (screw in
style prohibited).
e. Bushings style pivot shafts allowed(bearing
pivot shafts prohibited).
f. Upper control arms to measure 8 inches plus or minus
1/2"
4. All 4 flanges must have a 5 bolt pattern. All 108” type
cars that are originally equipped with a 4 bolt flange must be modified, in an
acceptable manner to a 5 bolt flange.
5. 1” O.D. tube welded or bolted behind the center line of
your shock tower.
6. Caster camber plate located on top of spring tower allowed
on front strut tower of T-bird.
7. No aftermarket parts (such as Dillon, Howe, homemade,
altered etc...) unless otherwise noted.
8. All control arms must be in stock locations.
9. No pan hard bars, coil over shock units, small diameter
springs, sliders, or rear sway bars unless factory stock.
10. Shock absorbers allowed in original stock position only. Can use any steel stock appearing shock absorbers. 4 shocks
only.
11. No interchange of front suspension parts without approval.
12. The use of “weight Jacks” is allowed on the rear axle only.
13. Cutting and heating of springs is permitted.
14. Racing springs allowed.
15. Full frame or safety approved unibody
allowed.
16. Mid America series hub mandatory on front right, where
available. Minimum 5 studs.
32. RADIATOR:
1. A catch can is mandatory
2. Aluminum radiators are permitted. No plastic radiators
allowed.
3. No antifreeze is permitted. Water only.
May use water pump lubricant rust inhibitor.
33. STEERING:
1. Steering must be in typical stock arrangement and location.
2. No rack and pinion type, except on Ford unibodies.
3. The steering wheel should be padded.
4. A collapsible steering wheel shaft is
suggested.
5. No welding on any steering component.
6. No Heim joints in steering linkage.
34. TIRES AND WHEELS
1. New or used, recapped Towel City tires ONLY. Towel City
tires which consist of the soft rubber compound (77A) are allowed for use on
the left side only. Maximum 8” tread width. Visitors should call the Marquette
County Drivers Association prior to coming.
2. Racing wheels required on ALL sides.
3. Longer and oversized stud bolts are required. Oversized wheel nuts mandatory. Stud must have at least 3
threads past nut.
4. No shimming allowed.
5. Maximum 8” wheel. No homemade wheels allowed.
6. The use of tire softener is not permitted.
7. ALL RACING WHEELS ON A CAR SHALL BE A MINIMUM OF 2”- A
MAXIMUM OF 4” OF BACKSPACING.
8. No air bleeders allowed.
35. BRAKES:
a. Aftermarket pedal assemblies allowed.
b. All four brakes must be in good operating condition.
c. No rear disc brakes.
36. FUEL TANKS:
1. A manufactured fuel cell in a
steel box is required and must be mounted in center of stub, each direction 11”
minimum ground clearance. 2 in each direction of 1” strap, square tubing or
angle iron with 1/8” minimum thickness surrounding the cell box in each
direction is mandatory. If rear stub is stock, cell must be as far forward as
possible.
2. No fuel lines or containers in the drivers’ compartment.
3. Fuel cell vents must be on the left side attached to the
underside of the quarter panel as close to the top as possible.
4. All fuel cell vents must have roll over valve.
5. Steel fuel lines or braided hose flared lines
except at fuel pump junction. A maximum of 6” of rubber in
front. 15” in the rear with a double clamp. Mounted away from exhaust and heat.
37. ENGINE:
1. Engine must be in stock location or moved no farther back
than number one sparkplug in line with balljoint
centerline. Any corporate engine which bolts in using stock parts may be used. Soild motor mounts or through bolted rubber mounts. Any
engine stabilizers must have slack at rest.
2. No aluminum blocks or heads.
3. Factory street production heads only (no turbo, bowtie,
angle plug, or other after market cylinder heads.)
4. Any flat tappet camshaft. 3 pushrods must have a vertical
white line at the top for inspection purposes.
5. No roller cams or roller rockers.
6. The use of roller tip rockers is allowed, but must have a
stock fulcrum.
7. Stock appearing valve train. 1 3/8” max. diameter
valve springs. The use of stud girdles is allowed.
8. No oil coolers, accusumps, No
remote oil filters. No drysump system.
1. CARBURETOR:
1. Maximum of 1 factory stock 2 barrel carburetor. (Choke plate may be
removed).No other modifications. Stock 4412 Holly carburetor optional for
racing season on all cars. No more than 1” adapter plate between intake and
carburetor. NO 4 BBL intakes.
2. INTAKE AND EXHAUST:
1. Stock automobile 2 barrel cast iron intake and cast iron
exhaust manifold only, no marine intakes, no frame modifications to fit
exhaust.
2. No porting or polishing.
3. All cars must have mufflers of reverse flow “Turbo” design,or unaltered glasspacks. unaltered
with 2 1/2”diameter outlets maximum.
4. **100 decibel limit mandatory. No exhaust popping or other
irritating or irregular exhaust noises.
3. FUEL PUMP:
1. Mechanical fuel pumps only.
4. IGNITION:
1. Any stock single point or magnetic
pickup type may be used. Stock type coil must be used.
5. TRANSMISSION AND REAR END:
1. No clutches such as Button, multidisc or other small
clutches. Provision must be made for clutch inspection, such as a 1” hole in
bell housing.
2. Stock rear end on in stock position.
3. 9” rear end optional, drum brakes only located in stock
position, stock wheel base on all cars using stock appearing control arms. Upper frame
mounts maybe moved up 1 inch.
4. Automatic transmission must have stock appearing torque
converter. Shift kits and transmission fluid cooler allowed.
5. Transmissions must have forward and reverse in working
order.
6. A U-hanger for front one quarter of drive shaft is
required.
7. All drive shafts must be painted white for safety. No
aluminum drive shafts.
8. Locked rear ends will be permitted.
9. Aftermarket axles acceptable. All modifications must be in
a manner acceptable to the inspector.
10. No quick changes
11. No truck rear ends or floaters.
6. ELECTRICAL:
1. No on board computers allowed for any purpose.
2. Battery must be securely installed, mounted with J bolts to
metal tray inside plastic container and strapped.
3. Car must be fitted with a starter capable of starting the
engine. No gear drive type starters on any but
Chrysler products.
4. All wiring must be neatly installed.
7. SAFETY:
1. Seat belts- Tech official approval required on mounting of
belts and seats. A headrest is required. Aluminum racing seat is mandatory. Mounted 17” minimum front center of seat to inside of furthest door
bar. Lap belt and shoulder harness must be a minimum of 3” wide. Crotch
strap is required. A date tag is required on all seat belts. Seat belts should
be mounted in direction of pull. Replaced every 5 years.
2. Driver Apparel- At least a Snell 85m rated helmet with Nomax head sock (optional). Complete fire suit, fireproof
gloves and eye protection (visor or goggles) are mandatory. No sport type shoes
accepted.
3. Fan shroud-Mandatory with fan. Electric
fans optional.
4. Fire Extinguisher- Extinguishers of dry powder of at least
2 lbs., full, and in operating condition; must be mounted in all cars within
the drivers reach and that of the safety crew. Mounting must have quick release
(except for cars with on board fire system).
5. Fuel-Gasoline only! No alcohol based fuels. No fuel line
may be exposed in the drivers’ compartment. No nitrous oxide. No cool can.
6. Kill Switch- Kill switch mandatory, centrally located and
painted safety orange. Master switch behind or along the drivers seat easily accessible and visible so that the
safety crew can reach it.
7. Window Nets- Mandatory on drivers’ side. Release shall be
painted orange.
8. Tow Hooks- Mandatory on the front and back of each car. Two
hooks will be painted orange for easy identity.
8. SUPER STOCK CLAIM RULE; NO CLAIM LAST TWO RACES OF SEASON
1. Claimer must finish the race with their engine in good
running order.
2. Must be same make engines
3. Claimer must finish in the same feature and on the same
feature lap.
4. Claim will be $750.00 and long block swap-cash, cashier
check or money order.
5. The long block includes oil pan to heads (excluding
exhaust, intake manifolds, carburetor, fuel pump, water pump, fly wheel, bell
housing and clutch assembly).
6. There is a 10 minute time limit if you want to claim a
motor, go to the scale within 10 minutes of the checkered flag and seek out a
board member, inspector or weigh master. The claimee
has 20 minutes to make their decision, during this time both cars will stay at
the scale and will not be tampered with.
7. Inspector fees and wrecker fees will be the responsibility
of the claimer when necessary.
8. There may be only one claim per claiming driver per season.
9. A claim may only be made by a driver.
10. Engine is immediately subject to inspection upon removal
to determine legality. New owner (claimer) is responsible for any engine
disassembly required for inspection.
11. Failure to give up an engine will result in
disqualification for disputer race, and the remainder of the season.
9. GENERAL:
10. ALL RULES WILL BE ENFORCED AS WRITTEN. EACH DRIVER AND
CREW IS RESPONSIBLE FOR KNOWING THE TRACK POLICY. ALL CARS WILL BE INSPECTED
FOR SAFETY AND RULE COMPLIANCE
11. **RULES NOTED WILL BE STRICTLY ENFORCED BY THE TRACK AND
ASSOCIATION OFFICIALS.
12. THE MARQUETTE COUNTY DRIVERS ASSOCIATION AND THE TRACK
ADMINISTRATION WOULD LIKE YOU TO BE AWARE THAT SOME RULES MAY NOT NECESSARILY
COMPLY WITH OTHER RACE TRACKS.
13. IF YOUR CAR IS DISQUALIFIED BY THESE RULES ENTRY FEE WILL
NOT BE REFUNDED.
This ammendment was addded to claify the entent of the "Crate Motor" rule. (this is not a change, it is the way it always was.):