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CLASS RULES ARE FROZE FOR 5 YEARS. 2006-2011
A. NO EXPRESS OR IMPLIED
WARRANTY OR SAFETY SHALL RESULT FROM PUBLICATIONS OF OR COMPLIANCE WITH THESE RULES AND/OR
REGULATIONS.
B. It is the responsibility
of the driver of the car to see that his/her car completely satisfies the rules, including but not limited to all safety rules.
The driver of each car represents to the promoter and all others that his/her car has satisfied all applicable rules, including
but not limited to safety rules, whenever such driver participates in warm-up, practice or competitive laps.
A. The intent of this class
is to present a late model style division, without the continuously rising costs that occur from unrestricted engines, and
the quest for the newest innovation in suspension components. A Handicap system will be used in an attempt to attract and
include a wide range of chassis design. Engines are limited both in compression ratio and carburetion. Weight breaks are designed
to chassis according to the level of sophistication.
General Tech inspections are open for observation of super drivers and their crews.
1) Competing models are
limited to 1983 or newer American or Canadian Passenger car or pickup bodies.
4. GENERAL
CAR
AND
BODY REQUIREMENTS
A. General Car:
1) Fiberglass replica bodies
are mandatory. Aluminum door panels, trunk lid and rear spoilers shall be permitted. Plastic Fenders, Noses and tails are
permitted.
2) Competitors will be
required to keep their cars neat appearing and maintained.
3) Bodies to remain stock
appearing, complete with bumpers.
4) Must have all body panels
to race (consideration will be made to start main event, if damage occurred in preliminaries).
5) No exterior rub-rails
or reinforcing. Jack points and trailer hold down hooks must not exceed beyond bodylines. Body must be kept neat and free
of jagged edges.
B. Interiors:
1) Interior area of car
must be completely enclosed in respect to engine, track surface, tires and fuel cell (trunk area).
2) All panels in the immediate
area of the driver must be constructed of steel minimum 22 gauge (including floor, front and rear firewalls and transmission
tunnel).
3) Other interior panels
may be .040 aluminum.
4) Driver must be completely
shielded from battery - subject to the Mission Valley Speedways General Safety Rules.
C. Overall Car Weight:
1) All cars will be weighed
and the ride height checked with the driver in the car prior to the main event and shall proceed directly to staging lanes.
2) Top 3 cars will be weighed
after main event on Specialty events and championship nights. And 4th and 5th place cars will be on stand-by.
3) Maximum weight on the
left side 57% with driver.
4) Minimum weight for all
Super Stock classes will be 2800 lbs, (note late model exception below).
5) Weight Handicap Guidelines:
a) Type 1 Stock clip with stock spindles and iron brakes.
i. a. 8.5 lbs. per cubic inch
b) Type 2 Stock clip with after market spindles and brake components.
i. 8.75 lbs. per cubic inch
c) Type S Stock clip with stock rear suspension design and stock spindles with iron brakes.
i. a. 8.25
tbs. per cubic inch.
D. Weight Exception:
1) Cars (i.e.: Late Models)
running Dry Sumps, Ford Motorsport or N heads, and Chrysler Stage 4 heads that want to run with this class need to switch
to two barrel carbs and bring total weight up to 3250. Cars (i.e.: Late Models) running Iron Eagle 215 heads, or Pro Topline
220 heads must switch to two-barrel carbs and must bring total weight up to 3350. Maximum left side weight including driver
is 56% but subject to change with the 70% approval of the class drivers and MVS board members. Late Model = Kalispell
Raceway Park present year rules, except no fuel
injection allowed.
A. No “Down-force
bodies” or Down-force components allowed.
B. Front Air Dam and Nose:
1) Front air dams optional,
subject to stock appearing.
C. Rear Spoilers:
1) Spoilers may be added
to rear deck lid ONLY. May be a maximum of 6.5 inches deep, measured from intersection with deck lid to tallest point, no
wider than rear quarter panels. No airfoils. No side verticals.
D. Windshields:
1) Windshield area to be
completely covered, tempered Plexiglas or Lexan.
2) Windshield straps subject
to tech advisor approval.
E. Rear Window:
1) Rear window opening
must be filled to complete roofline.
F. Side Windows, Quarter
Windows, Air Deflectors and Net:
1) Window net mandatory
on drivers side, right side window to remain open.
G. Rear View Mirror:
1) Mirrors shall be permitted.
H. Dash Panel:
I. Firewalls:
J. Doors:
K. Quarter and Rocker Panels:
L. Grilles:
M. Hood: No forward facing
hood scoops
N. Roof:
O. Rear Deck Lids:
P. Bumpers and Rear Filler
Panel:
Q. Identification and Marking:
1) All cars must have their
weight and type clearly marked on the upper left corner of their windshield.
2) Example: #44, 3170T, Type S
1) Cast iron engine blocks
and cylinder heads only.
A. Engine Location:
1) Crankshaft centerline
should be centered between lower ball joints +/- ½”. Minimum height to be 11”
with the driver in the car.
2) Forward most spark plug
shall be no more than 3 ½ inch set back from centerline of upper ball joint for Type S, Type I and Type
2 cars.
3) V-6 engines should be
positioned so that the bell housing placement equals that of a similar V-8 car.
B. Engine Displacement:
1) Maximum Cubic inch for
all classes shall be 360 (+.040” Mopar only).
C. Engine Compression Ratio:
D. Internal Changes:
1) Forged or nodular iron
crankshafts only. After market cranks permitted but should be approximate weight of the like O.E. piece.
2) No aftermarket drive
devices (2 sprocket chain only).
3) Pistons must have 2
compression rings and one 3/16" oil ring. Flat top pistons only.
E. Piston/Rods:
1) Connecting rod must
be steel (forged or billet) length optional.
F. Oil Pans and Coolers:
G. Cylinder Heads:
1) Cylinder heads must
be O.E. origin unless otherwise stated.
a) Small block GM straight plug only
i. World Products S/R Torque and Chevy Bow Tie heads shall
be permitted.
ii. No “Vortec
Bow Tie” Heads
iii. Maximum valve diameter 2.05/1.6
b) Small block Chrysler
i. W-2 permitted
(as cast). Maximum valve diameter 2.02/1.6.
c) Ford
i. Roush 180 and 200 head with maximum valve size
2.02”, Intake 1.6” Exhaust shall be permitted.
ii. 351 "c" 2bbl. (open chamber heads only on Windsor blocks) Fabricated spacers may
not exceed 1/2" thick.
iii. World product Windsor Jr. and Windsor Sr. permitted.
Maximum valve diameter 2.02”, Intake and 1.6” Exhaust shall be permitted.
iv. No Ford N heads.
d) Use of 'form tool" or 'bowl hog" OK, cut not to exceed depth of 1” into valve pocket. All work
to be concentric to guide centerline. No hand blending.
e) Intake ports may be matched to the gasket on the head side only. May not exceed 3/8'.
f) Roller rockers and stud girdles permitted. Stud type rockers only, except Chrysler.
g) Milling is permitted on the gasket surfaces only.
H. Camshaft, Valve Lifters,
and Rocker Arms:
1) Flat tappet camshafts
only, no mushroom.
2) Lifter diameter to match
engine as produced.
I.
Intake Manifold:
1) Iron intakes are allowed,
1 5/8" spacer including gasket. Aluminum intakes are allowed, 1" spacer.
J. Carburetor:
1) Carburetors must be
in “as produced condition", not flowed or reworked.
2) Choke butterfly and
linkage may be removed. Normal tuning changes such as jets, power valves and pump nozzles shall be permitted.
3) Class carburetor for
all sportsman types shall be Holley list 4412. 1-3/8 Ventura, 1-11/16 throttle plates.
4) No Ram Air or Forced
Air induction. No Sealed Cowl Induction.
5) Fresh air may not be
pulled from the front of the car.
6) No tubes, funnels, or any other device which may control the flow of air is permitted inside
of the air cleaner or between the air cleaner and the carburetor.
8. ENGINE/CAR
ELECTRICAL SYSTEM
A. Ignition System:
1) Ignition may be single
coil type with breaker in distributor, no magnetos, no capacitor discharge, no crank triggers. M.S.D. style OK.
B. Battery:
1) One 12 to 18 volt passenger
car battery only.
C. Electrical Switches
and Locations:
1) A labeled ON-OFF switch
shall be located on the roll bar behind the driver’s seat. The switch must be wired to the battery in a manner that
will cut off all electrical power to the car.
D. Accessories:
1) No on-board computers,
traction devices, automated electronics, recording devices, or digital readout gauges are permitted.
E. Radios:
1) Radios optional, however
if used all radio frequencies will be given to the head judge, posted for the fans and monitored by track officials. Spotters
will have a designated area in the pits and must be available for the pit officials to speak to during each super stock race.
2) Radio Penalties: If
in the opinion of the monitoring officials that there has been any un-sportsman like use of the radios, the driver will lose
all points for the night and shall leave the grounds for the remainder of the evening. If a driver refuses to turn over frequencies
used, or changes them without notifying officials, driver will not be allowed to race until correcting the problem.
A. Oiling System:
1) Wet sump oil system
only (single stage pump) must be OEM design with chosen engine.
2) Synthetic oil is permitted.
To help speed up oil clean up you must inform MVAR officials that you are using synthetic oil.
A. Exhaust Manifold:
1) Exhaust headers permitted;
mufflers required subject to Mission Valley Speedways noise requirements.
B. Exhaust Pipes:
1) Exhaust system must
exit behind or away from driver.
2) Exhaust must be shielded
from contact with driver or safety personnel in the event of an emergency.
A. Clutch:
1) Minimum clutch diameter
must be 4.5" and shall be mounted on the crankshaft.
2) Cars wishing to compete
with internal clutch transmission (Brinn, Bert) shall use a flywheel weighing a minimum of 18 lbs.
B. Bell
Housing:
1) Multi-disc clutches
(Tilton, Quartermaster) may use aluminum bell housing.
C. Transmission:
1) Transmission should
be O.E origin, must have 2 forward gears and reverse in working order.
D. Drive Shaft:
1) Driveline should be
painted white and have drive shaft loop to Mission Valley Speedways requirements.
E. Wheels and Lug Bolts:
1) Steel wheels only; nominal
10" max.
2) All cars will have minimum
5/8" lug studs.
F. Tires:
1) New tires shall be MVS
Track approved tire purchased at MVS. For the 2005 season, said tire is the Goodyear Tire. Used Goodyear tires shall be inspected
and stamped by the tech inspector.
2) No tire soaking. No
additives of any kind will be allowed that will alter the tire compound.
3) Tire bleeders are permitted
4) Tires may be inflated
with nitrogen.
G. Tire Usage Rules:
1) Six tires maximum allowed
per car on the first weekend with one tire per weekend available for purchase per super stock race thereafter. No banking
tires, (i.e.: if you do not purchase your one tire for the weekend, you are only allowed one again at the next race, not two)
No tires will be available for the last two race dates.
A. Cross members may be
altered to accommodate front sump engines in GM clips. Suspension pivots must remain in original position.
A. General Suspension:
1) Chassis may be fully
fabricated but should have a stock front clip (sub-frame), cups with straight frame rails, such as a mid 1970 Camaro, must
be attached to the lowest point of the rails. Clips with kick out frame rails, such as Chevelle, Monte
Carlo or Galaxy must utilize enough stock to neatly match fabricated frame.
2) Competing cars must
fit in one of 3 subclasses: Type 1, Type 2, or Type S.
a) Type 1 Super Stock is defined as a stock front clip or fabricated clip with lower control arms in
stock location and retains original dimensions. No coil over springs or shocks.
i. O.E. spindles unaltered (steering arm may be shortened
or lengthened).
ii. Steering box to remain in original position.
iii. O.E. brake components (calipers and rotors). Hubs must
have 5x5 bolt pattern.
b) Type 2 Super Stock will be cars meeting Class 1 front clip requirements, and having the following:
i. Aluminum brake components, and/or wide 5 hubs (Dillon
or Star-lite).
ii. Non-OEM, or fabricated spindles and/or rack and pinion
steering.
c) Type S Super Stock must meet requirements for stock front clip, plus:
i. Maintain original frame rails (rocker boxes) back to
the rear axle centerline.
ii. Rear suspension points remain stock.
iii. Front and rear must meet the Street Stock rules.
B. Front Suspensions:
1) Upper control arms and
mounts may be fabricated. OEM lower control arms must retain stock dimensions, aftermarket bushings and ball joints permitted.
C. Rear Suspensions:
1) Leaf spring cars may
use weight jack described in Street Stock
2) Models having coil-spring
O.E. rear suspension must retain stock lower control arms. Upper link and pan hard bar may be relocated.
3) Truck arms permitted.
4) Fabricated rear suspension
should be parallel leaf springs (with dampener) or 3pt. with 5" coils.
a) No spring bars on lower links.
b) Spring centerline should not share shock centerline - subject to weight adjustment.
5) Floater rear hubs recommended
- quick change optional.
a) Non-floated axis may be permitted if equipped with approved aftermarket (William's or sway away) axils,
and/or some method of hub retention. Must run caliper, pads and rotor.
b) Rear-ends with inboard brakes, open tube, or aluminum housings will be subject to additional weight
concessions.
D. Shock Absorbers:
1) Steel body shocks only
aluminum subject to added weight.
E. Tread Width Requirements:
1) Maximum track width
69" (front and rear) measured at tire centerline to tire centerline.
F. Wheelbase Requirements:
1) Models with stock wheel
base under 102' may be stretched to be included.
G. Body Height Requirements:
1) Minimum ground clearance
is 4" measured at all frame rails, side skirts and front spoiler.
A. Approved fuels will include aviation gas, racing gasoline, and standard pump gasoline. No alcohol,
nitro, or nitrous oxide. Any positive reading on the fuel meter will be deemed illegal. WARNING! Some pump fuels, such as Cenex Super Un-Leaded; have methanol or ethanol added to
them to achieve a higher octane. These are oxygenates and show positive on the fuel meter.
B. Fuel Cell and Fuel Container
Installation:
1) Minimum fuel cell height
will be 8" measured with driver on level surface.
C. Fuel Pump:
1) Block mounted mechanical
fuel pumps only.
A. Roll Bars:
1) The role cage in the
driver’s compartments shall be constructed of round carbon mechanical tubing 1 3/4 -.095-wall thickness or 1 5/8 -.120
wall thickness.
2) Continuous bends only.
No butt-welded corners.
3) Inspection holes may
be requested.
4) Allowable dimensions
for frame rails (2x3x.083) (2x2x.120).
B. Transmission/Clutch
Shielding
1) Approved scatter shield
or containment method required on all cars.
2) Reinforced belting acceptable
as containment method.
DRIVERS, CAR OWNERS AND PITMEN IN THIS CLASS SHALL OBSERVE ALL THE MISSION VALLEY AUTO RACERS GENERAL RULES.
If it doesn’t say YOU CAN, YOU CAN’T!
Limited Late Model Class is governed and subject to all Mission Valley Speedways requirements for safety and appearance. Mission Valley
Board of Directors reserves the right to interpret and/or adjust any and all rules outlined herein in the interest of competition.
RULES TO BE CHANGED MUST HAVE A 70% MAJORITY VOTE OF THE CLASS DRIVERS
OR OWNERS THAT PARTICIPATED IN TWO OR MORE RACES AND 70% MAJORITY VOTE OF BOARD MEMBERS. If car owner or driver can’t be contacted or is contacted
and doesn’t reply back to the class representative, the vote for the car would be a NO vote. Any rule changes not voted
on by driver or owner will be a NO vote.
ONLY in the interest of SAFETY, COST and/or FAIR COMPETITION can 70% of the board of directors make a rule change if the class representative
can’t get 70% of the votes from the class drivers or owners.
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