State Park Speedway
SUPER LATE MODEL RULES
2008 SEASON
__________________________________________________________
Remember: These
are rules and with most rule books there may be interpretation
issues so if a
rule seems remotely open or vague please call track or tech official
to get final
interpretation. Tech Inspectors ruling is final -- NOT UP FOR DEBATE
so please do
not hesitate to ask questions.
------------------------------------------------------------------------------------------------------------
Master Power
Switch:
- Master Power
Switch is required and must be located in the middle of the car, within the easy
reach of the driver and safety officials from both sides of the car. Ignition
systems must be 12 volts.
MSD Box:
- No dual MSD
systems.
Fire Extinguisher:
- All cars are
required to carry an operable, working approved ABC rated Fire Extinguisher (5
lb. size minimum), with a current tag, which is securely installed within easy
reach of the driver.
Driver Side
Window Net:
- Drivers
window net is mandatory.
- Strap or mesh
type (Large mesh 12 inch minimum length) must be mounted securely on bottom,
with seat belt type release at top front corner of window net.
- No windows
are allowed on right side of car, except rear quarter.
Harnesses:
-Head and neck
support device is recommended. For
example the: HANS, HUTCHENS, SIMPSON.
- If none of
these are used you are required to use a neck brace.
- Five point
racing harness of 3 inch shoulder and 3 inch made-for- racing belts are
mandatory.
- Seatbelts
must be dated 3 years or newer.
- The belt
anchors must be mounted to a cage or frame member.
- Lap belt must
be anchored at a point below the plane of the seat and secure the driver across
the hips.
- Shoulder
belts must be secured to the roll cage within 1 inch of the height of the
Shoulders.
- Seat belts
must be mounted to roll cage.
Seats:
- Aluminum
made-for-racing seats are mandatory and must support the head from the rear.
- Aluminum
seats must have proper steel reinforcement for mounting to the cage.
- Right side
headrests are required and either a left side headrest or a Burton net are
required.
Fuel:
- Fuel must
meet specific gravity for said manufacturer. No additives of any kind.
Fuel Cell:
- Fuel cells
with rubber bladders the soft “bag style” are recommended. (FT-3 spec. minimum)
- All Fuel
cells must contain “full foam”
- Fuel cell
plates and fuel cell tubs are mandatory.
- Fuel cell
protector plate 1/8 inch thick steel must be mounted on outside of frame rails.
- The plates
must cover the sides and rear of the fuel cell and be official approved.
- Fuel cell
must be banded both ways with two straps each way with 1 inch minimum straps.
- Fuel cell tub
must be 1/8 inch thick steel with one inch lip. Front, bottom and rear will be
one piece.
- The top of
the box will use current 18 or 20 gauge top with 1 inch by 1/8 inch straps with
two in each direction.
- All fuel
cells must have check ball rollover valve in place.
- Fuel cell
minimum height is 11 inches.
- The hard
plastic cells are not allowed.
Overflow
Bottles:
- Overflow
bottles/surge tanks are mandatory and must be in engine compartment and overflow
tubes must be directed onto the outside passenger side windshield.
- Overflow
bottles must be securely mounted.
- No
anti-freeze allowed at any time.
- Water Wetter
or Freezer style cooling agents are allowed.
Exhaust
System:
- Exhaust must
run tight and leak free to point at least behind drivers seat and shall exit
under the car, mufflers required.
- Decibel
limits 98, taken from center of main grandstand.
- Decibel rule
will be enforced!!! No excessive backfiring from any car will be tolerated.
General tire
statement:
- Maximum tread
width 64” center to center front or rear
- No tire
softener or tire treatments allowed.
- The tire
softness must not be below the track’s set points of softness on the "official
track tire durometer".
- Any tires
found to below stated durometer reading will be confiscated by the track.
- This is not
up for debate!!!
- Track will
determine said durometer minimum reading based on an average.
Inspection:
- All cars are
subject to inspection, anytime, before, during or after a race.
- Officials
reserve the right to disqualify cars, require changes, confiscate illegal parts,
etc. and the decisions of the officials will be final. Any interference with any
official(s) and his/her duties will result in an automatic disqualification.
Official’s decisions will be based upon fair play and safety. Disqualification
(except weight violation) is retroactive to ALL previous events competed in that
race meet. Non-compliance with the specification outline herein will subject the
participants (owner/driver) to disqualification. Furthermore, all non-complying
components will be seized by track officials. Any driver/owner refusing to allow
the track officials to inspect a car, will loose points and money earned and
will have the car attempting to be inspected confiscated. (The entire car, until
inspection is performed with crew chief and driver present) Owner/driver must
provide tools.
Inspection
Hole:
- A 3/4 inch
diameter plug must be installed in the oil pan on either side (which ever is
easiest to get at), in line with the second or third rod journal (the easiest to
get to), above the oil sump area (oil level), for inspection purposes.
- The crew must
have a wrench for the plug removal. If a windage tray is used, there must be a
hole provision to inspect.
Driveshaft:
- All cars must
have driveshaft hoops, made of heavy gauge steel, looped around the driveshaft.
- Drive shafts
are to painted white.
Weight:
- Any weight
(ballast) added to the car must be secured by (2) ˝ “bolts.
- Loose weights
are prohibited.
- No weighs may
be added outside the body.
- Added weights
must be painted a bright color (safety orange or white) and have car number on
weight.
- Any ballast
that falls off a car during competition cannot be returned to the car for
determining weight after the race.
-
Weight buy back will be $2.00/ Lb.
Car Number:
- All cars must
have a 16 inch number on both doors.
- All cars must
have a 4 inch number in the upper right-hand corner of the windshield.
-
No duct tape or spray bomb numbers.
Car
Appearance:
- All cars must
be painted and kept in good shape the entire year.
Bodies:
- Competing
models 1998 to current year, American made automobiles only.
- No sports
cars allowed.
- Minimum wheel
base 104 inches, plus or minus ˝ inch.
- Must be
mounted on frame so that it is stock appearing.
- Body
components must remain the general contours of stock components
and may not be
excessively shortened, narrowed, lengthened or deformed.
- Roof must be
centered in relation to body. Full size roof.
- No forward
air intake for carburetor.
- Back end must
be enclosed with either metal or solid type enclosure.
- Rear end of
deck lid above bumper must be enclosed, no holes.
- No part of
the tires may extend outside of the body.
- Maximum
overall width is 82 inches (measured from outside of tires or body).
-Tow hooks are
not required. If not using tow hooks chassis must be marked with bright tape as
to useable hook points.
- Hinged trunk
lid or removable trunk lids are mandatory. Must be at least 6” x 18”.
Must be removable without using tools.
- 1/8 inch
floor and foot tunnel, aluminum seat with leg and shoulder protector, center of
seat 16 1/2 inches to 18 1/2 inches,
- No Carbon
Fiber or Kevlar products of any kind allowed. (Except the hood and the roof)
- Ride height
will be measured with driver in the car and all appropriate racing gear.
- 3 1/2 inch
frame height.
- 3 1/2 inch
nose and rocker height.
If not ABC must
conform to Five Star Body rules for year of manufacturer.
Spoilers:
- Maximum of 90
degrees and no bigger than 5 inches X 60 inches in length.
- No sides or
extensions of any kind.
Drivers Compartment:
- Firewall,
Floorboards and trunk area must be sealed off with 22 gauge steel or 18 gauge
aluminum.
- No fuel lines
in drivers compartment.
- Steering
shaft if not using collapsible style must incorporate two u-joints minimum.
Windshields/Side Windows/Rear Window:
- A 10 inch
maximum vent window is allowed on either side including air vents.
- All cars must
have a full windshield, and rear window made of Lexan.
- Both windows
must be braced to keep window and body from deforming at high speeds.
Roll Cage:
-All cars must
have a full cage welded to the frame including uni-body.
-There must be
360 degrees welds around tubing of all joints and gussets where cut and welded,
expect where tubing is bent.
- Four or more
bars are required on drivers side, braced at four points or more perpendicular
to cross braces, top bar on left side 29 inches from the ground.
- Minimum O.D.
tubing of 1 3/4 (1.75) inches for roll cage.
- No exhaust
tubing allowed.
- All roll bars
exposed to driver must be padded.
- Minimum of
three left side door bars.
- Jack post
must be guarded on inside of body.
- Minimum .095
wall tubing mandatory.
- Mark Martin
foot protector bars are mandatory.
- Mandatory
that all door bars on drivers side be plated 1/8 steel on the outside and to
cover full length of door bars..
Engine:
The following
rules apply to both 9 to 1 and 10:8 to 1 engines
- Block must be
cast iron.
- Minimum CID
350 Chevy and Ford
- Maximum CID
358 Chevy and Ford
- Minimum CID
360 Mopar
- Maximum CID
369 Mopar
- No titanium
Engine Components of any kind, other than valve spring retainers.
- No 18 degree
or SB2 Chevrolet heads. - Minimum crank height
- 10 inches
(Measured from the center of the bolt)
- Engines must
be located so that the furthest forward spark plug is maximum 2-inches behind
the upper ball
joint’s centerline.
Crankshaft:
- Steel crankshafts only.
Pistons:
- 9 to 1
engines may have dish or inverted dome.
- Flat top
pistons only, no part of piston may protrude above the cylinder.
- Maximum
compression ratio 10.800 to 1
(a ratio of 10.810 to 1 or higher will not be allowed)
- Maximum
compression ratio 9.500 to 1
(a ratio of 9.510 to 1 or higher will not be allowed.)
- Maximum
compression ratio 10.500 to 1
(a ratio of 10.510 or higher will not be allowed.)
- All
compression tests will be done with
whistler.
Camshaft:
- 9 to 1
Aluminum headed engines are allowed roller cams and rev kits, also in roller
concepts version with two barrels.
- Lifters must
rotate in there bores, on steel headed, non-roller engines.
- Lifters must
be stock diameter
- No mushroom
type lifters in iron motor or the ace head motor.
- Inlayed cams
are prohibited - Rev kits of any type are prohibited, in 10:8 to 1 steel headed
and the Ace engine(s), unless roller engine version. - Only steel push rods
(Titanium, aluminum or graphite are prohibited)
- No solid gear
camshaft drive. Timing Chains Only.
Heads:
For 10.8 to 1
engines
- Only approved
OEM Cast Iron Cylinder heads of stock configuration allowed.
- Dart Iron
Eagle Heads are allowed on wet sump configuration engines
- Cylinder head
required are iron bowtie part numbers;
14011058, 10134392, 4011034.
- The new bowtie part number 12480034 is allowed.
- Cylinder heads
must be OEM to block being used.
- Angle milling
is prohibited, valve angle must remain ˝ degree of stock and heads must remain
stock.
- Valves,
rocker studs, head bolts and spark plugs may not be relocated.
- No polishing
or grinding permitted to ports or runners.
(Combustion chamber may be polished, however the
configuration may not be altered).
- Minimum CC of
the combustion chamber shall be 62CC.
- A three angle
valve job may be done as long as no stones are used more than 1/8 inch over the
head of the valve. (Bowl cutting is prohibited)
- Intake 2.02 ,
exhaust 1,60, maximum allowable valve spring diameter 1.5 inches
- Use of
titanium valves prohibited.
- All original
cylinder head identification markings must remain as original.
- Only approved
rocker arms allowed, maximum ratio 1.6 to 1.
- Shaft type
rocker arms are prohibited. Stud mount rockers only.
- No more than
0.010 of an inch may be removed from any surface of the
combustion
chamber
- The cylinder
head to block surface may be machined a max. of 0.050 in. from OEM.
- Any evidence
of chemical treating, acid dipping, acid flowing, abrasive blasting or other
alterations to the original as cast in form or the addition of material to the
ports or combustion chamber will cause those cylinder head to be declared
illegal.
- As in any
questionable instance you may want to get prior approval
For 9 to 1 Aluminum head engines:
- Chevy must
use 23 degree heads; only plus or minus 2 degrees.
- Head must
have prior approval.
- Aluminum
heads may have shaft style rocker arms.
- Maximum valve
spring diameter 1.550. - Polishing and porting allowed.
- Titanium
valves, spring retainers and keepers allowed. (9 to 1 only)
For the ACE head:
-
Must be able sell Heads, complete for $2100.00 (hardware,
valves, valves springs, retainers, keepers and guide plates.)
-
Valve stem must be 11/32 or 5/16 Stem.
- Duration
rule, 270 at 50 thousands - All valve spring size 1.55 Max.
- Flat Tappet
Magnetic Steel Cams Only---Rocker 1.6 Max.
- No shaft
rocker arms except on Mopar engines - Magnetic steel lifters---No roller or
ceramic lifters---No roller bearing camshaft journals
- You may
rebush lifter bore(s). - Must retain stock lifter for that engine---Cam journals
must be stock for engine
- Mechanical
Lifters total lift.600 inches
- Steel or
Titanium Valve Spring Retainers are permissible
- May have one
extra water line per head
- Spacer must
be perpendicular to base of the carburetor with no taper or bevel
- Maximum
height of manifold is 7 inches( including any carb spacer and gasket )
- The following
intake manifold part numbers are the only intakes allowed: HVH-1000-1003 /
Edelbrock 2975- 2972- 2925 / Bowtie-100-51102 & a dart no.
- 4 inch
Minimum with a 4.045 inch Maximum engine bore.
- Stroke 3.500
Maximum
- Minimum Cubic
inch 350 - Maximum Cubic Inch 358
- Maximum Cubic
Inch 360 for Mopar
- Maximum
compression ratio 10.5 to 1 (10.510 is illegal)
- Minimum 1.900
rod journals or any under sized journals under factory dimensions.
- Magnetic
steel rods only-- NO Aluminum, Titanium, Or Plastic Rods...
- Must conform
to specs with concept iron head engine; must have 7/16 rod bolts only!
- Max. 4-Stage
oil pump
- All blocks
must be stock appearing (Including the oil filter housing)
Intake
Manifold:
- 9 to 1
Aluminum headed engines, only, may polish intake.
- (Steel and
Ace engine only)No grinding or polishing of any part of the manifold, except you
may match port the runners a maximum of 1 inch.
- Any
production type intake manifold allowed, provided it is readily available to all
competitors from local race parts suppliers (Maximum cost $350.00)
- Wet sump
configuration engines must use Victor Jr. part #2975 intake only. May port match
intake to heads.
- Maximum
height of manifold is 7 inches
(including any carburetor spacer and gaskets).
- An adapter
plate, with a straight bore and maximum thickness of 1 ˝” may be used between
the intake manifold and carburetor. NO chamfering, grinding, or drilling of the
adapter plate is permitted.
- The manifold
height is measured from the base of the carburetor to top of cylinder block.
- Only one flat
gasket with a maximum of .120 of an inch may be used between intake manifold and
cylinder head , no spacer or wedge type gaskets allowed.
- No additional
material may be added to manifold.
Carburetors:
- No tapered
boosters.
- 4412 2 bbl
for all dry sump engines.
- Removal of
choke (Butterfly) is the only modification allowed.
- 4150 Series
650 CFM Carb allowed on wet sump configuration engines only.
- Carburetors
must pass track inspection using track’s tech tools.
- Double return
springs required.
- Air cleaner
required.
- Air box
allowed with cowl inlet only (rear of hood).
Air Intake
- Forward
intakes are not allowed.
- Air boxes are
permitted.
- The back of
the air box must be flat.
- No devices
for directing the flow of the air into the air cleaner are permitted.
- No additives
allowed in air filter.
Clutch:
- The 5.5 inch
or bigger will be the only clutch allowed.
- Absolutely no
carbon fiber or poly clutches allowed.
- Internal
clutch style transmissions are not allowed.
- Bell housing
must have a minimum 2 ˝” hole at bottom (to allow clear view of clutch).
Brakes:
- All cars must
have functioning brakes on each wheel.
- No more than
4 piston brake calipers.
- Fixed mounted
rotors are the only rotors allowed
- Wet sump cars
are limited to $160.00 retail advertised price calipers.
- No ABS units
or Brake Recirculators on wet sump cars.
Suspension:
- Stock, coil
over or leaf allowed.
- No computer
or hand operated controlled suspension.
- No aluminum
axle tubes, no titanium axle shafts, no aluminum rotors, no carbon fiber rotors.
- Wet sump
configuration cars are limited to steel or aluminum body shocks, non-adjustable,
non- rebuildable with a maximum advertised retail cost of $155.00.
- Wet sump cars may not have any spring
loaded or rubber bushing suspension components. One shock per wheel on any car.
Weight
Rules:
- Total weight
is before qualifying , heat race , semi-feature or feature
- All cars must
be 58/42 left to right side weight bias.
- 2800 Lbs for
Dry Sump Configuration
- You must be
58/42 left to right side weight bias after the race.
- Weighing of
cars will be with driver in the car.
- ASA Late
Model Crate Motor cars that conform to ASA Latemodel National Touring
Rules or MIS ASA Latemodel Rules require minimum of 2750 lbs.
Crate Motors only. No spec motors!