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2009 RULE BOOK CHANGES
Oxford
Plains Speedway announces the following rules changes, modifications
or clarifications for the 2009 season.
2009
LATE MODEL CHANGES
3-1.2
Approved Competition Models
The
following cars are the eligible models approved for competition:
Impala
SS, Monte Carlo, Pontiac Grand Prix, Ford Fusion, Taurus, Dodge,
Charger, Intrepid RT Toyota Camry Five Star - #723-142
All
other makes and models must be approved by Oxford Plains Speedway.
The
Only 23 Series Five Star Narrow Fenders Allowed will be:
660-23PLW
Narrow Plastic White left
660-23PRW
Narrow Plastic White right
660-23PLB
Narrow Plastic Black left
660-23PRB
Narrow Plastic Black right
3-2
GENERAL BODY REQUIREMENTS
3-2.1
Appearance
(a)
Cars must be neat appearing and have complete bodies. OPS approved
body may be either stock or aftermarket steel or aluminum and a
stock steel or fiberglass roof is required. No carbon fiber body
panels permitted. ABS plastic front fenders may be used and must
match body used. Front and rear bumper covers may be stock or
aftermarket rubber. Fiberglass hoods and window frames permitted.
All body panels must be complete in length and width, nose panel may
be narrowed a maximum of 4 (four) inches.
A
long body template will be used to check body configuration.
(b)
Full stock dimension windshield is mandatory. Full stock dimension
rear window is mandatory. Minimum 1/8 inch thick Lexan material must
be used for front and rear windows. Three internal windshield braces
spaced at least on 5 (five) inch centers and roughly centered upon
windshield constructed of minimum of 1 (one) inch by 1/8 inch thick
material is required. Rear window must be securely mounted with
straps or edge clips made of metal, steel or aluminum and be
internally braced so window will not distort under race conditions.
Rear quarter panel windows may be covered with Lexan material. No
tinted windows. Rear
side window may have approved air vents for driver.
A
pillar windows are not to exceed 6 in any direction measured from
front of door opening.
No
interior air deflectors allowed.
3-3.1
Spoilers
(a)
Front Spoiler / Air Dam
Minimum
ground clearance for front spoiler / air dam shall be 4 (four)
inches with driver. Added pieces to the front air dam must be
installed in a vertical manner.
(b)
Rear Spoiler.
Must
be made of .090 minimum thickness smooth aluminum maximum width of
60 wide and 5 high. Maximum
height from ground to top of spoiler 38 for non-ABC bodies.
NO side enclosures no lips or bends in upper portion of
spoiler and must be flush to vertical surfaces of deck lid,
non-adjustable.
ABC
spoiler heights will be according to instruction manual and will be
subject to Five-Star referee inspections.
Measure will from top flat surface at end of trunk lid to
ground at 34 x7/8.
3-5.8
Engine Height
Centerline
of crankshaft harmonic balancer (or equivalent) must be located a
minimum of 11 (eleven) inches above the ground plane
3-5.10
Carburetor
Only
#4412 Holley 500 CFM carburetor permitted. Absolutely no material
may be added or removed from carburetor, except bolt-on choke
mechanism. Canton P.N.
# 85060 Only
3-8
ENGINE EXHAUST SYSTEM
3-8.1
Exhaust Manifold
Exhaust
headers permitted. All four tubes from right and left bank of engine
must enter single collector on each respective side of exhaust. No
balance tubes permitted. Must be made of mild steel, no stainless
steel permitted. Two mufflers are required and must be Howe #3002 or
Magna Flow #11219 and steel pipe must extend beyond drivers seat
and may not be cut or modified and must be installed in correct flow
direction. Maximum
exhaust pipe size is 3 ½ inches. No "Two-in-One" or
scavenger exhaust systems permitted. Exhaust pipes must go beyond
the driver.
3-9.3
Bell Housing
It
is recommended that a steel scatter shield be used to cover the top
half of the bell housing. Shield may be a steel plate to cover
original bell housing and may be attached to the floor boards. A 2 (two) inch inspection hole must be drilled into the bottom of the bell
housing for viewing purposes.
Aluminum bell housing will be allowed with ACT clutch And ACT
crate engine.
3-9.6
Rear End
Rear
ends must have floating type bearing and hub such as quick change or
non-quick change, or front load quick change or steel housing type
9 floater. With
steel center section gear carriers only allowed.
No cambered rear ends permitted. Must be driven with solid
flange drive plates. All
running gear drainage plugs must be safety wired.
No titanium parts allowed.
B:
Rear ends may be locked or open no gold traks or any type of ratchet
or limited slips allowed. SPOOLS
ONLY.
3-9.7
Wheels
Aftermarket
8 (eight) inch steel racing wheel required. Bleeder valves
permitted. Front wheels must maintain the same offset left and right.
(rear also) Maximum1 (one) ½ spacer per wheel.
Lightening of wheel not allowed.
Must be out of box
3-11.2
Shock Absorbers
Shock
rules will be uniform with ACT rules, which are as follows:
KONI brand approved. Recommended models are KON30-7436 and
KON30-9325. KON30-7325, KON30-9436, KON30-7647 and KON30-1309 also
permitted. No changing or altering valving in eligible shock
numbers.
Shock
bump stops will be allowed on ACT approved KONI shocks.
Shocks
must not be painted, and model numbers must be fully legible.
There
will be no rebuilding of existing, "old" KONI shocks that
might be in current inventory. There are no cross-reference shocks
from past years that will be acceptable.
Shocks
may be swapped at any time with ACT/OPS inventory.
3-11.4
A-Frames
Any
stock or aftermarket upper and lower control arms allowed.
Lower control arms must be same length left and right. Measurement
will be from center of mounting point to center of ball joint. Heim
joints permitted. No
lower control arm bump stops allowed.
No chains permitted.
-11.7
Wheel Base
Minimum
allowable wheelbase shall be 104.5 inches.
Maximum allowed shall be 105.5
inches.
3-11.9
Roof Height
Minimum
roof height shall be as per. Template sheet measurements or ABC
referee.
3-13
BRAKES
Four-wheel
steel component brakes in good working order are mandatory. Front
brake rotor must be a minimum of 1 (one) inch thick and made of
steel. Rear brake
rotors must be a minimum of Ύ and made of steel.
ACT cars must run brakes under rule 19-13 of ACT rulebook.
2009 Strictly Stock Changes
5-1
COMPETING MODELS AS SELECTED BY OPS
5-1.1
Strictly Stock Races
Oxford
Strictly Stock races are open to eligible 1960 and newer models of
American made passenger car production cars. No station wagons,
convertibles, 4-Wheel drives, NO LEAF SPRING Camaro,
Firebird, Mustang, or Cougar models permitted.
5-2
GENERAL CAR BODY REQUIREMENTS
5-2.1
Car Bodies
(a)
Cars should be neat appearing. Panels must remain as manufactured
and must match stock frame for body used. All chassis must maintain
stock wheelbase. 108
metric chassis may run 1988 and up factory steel front wheel drive
bodies. Example:
Pontiac Grand Prix. Big
chassis cars must run chassis with matching wheelbase.
(b)
Original dimensions of all bodies must be retained as manufactured.
All body panels must be steel.
5-2.2
Weight
Cars
with a maximum tread width of 60 inches will weigh a minimum of
2900 pounds with driver. Cars
exceeding 60 up to 64 will weigh 3000 pounds minimum with the
driver. No cars over 64
inches allowed. Maximum
allowed weight will 53% of total car/driver weight. Cars equipped
with a V-6 engine will have their weight adjusted per OPS technical
inspectors.
5-6.3
Battery
Must
be securely mounted in a steel box with a steel cover.
Batteries not allowed in trunk area.
5-8.2
Exhaust Outlet
Maximum
allowable pipe size is 2 ½ inches in diameter. Exhaust pipes must go beyond the driver.
5-9.5
Wheels
Stock
or White-Spoke steel wheels with a maximum width of 7 (seven) inches
required. Either 15 or 16-inch wheels may be used, but must be same
size on both sides. Wheel nut size is optional.
Right side wheel nuts must be one hex wheel nuts. All wheels
must be same size. Minimum off set measured from backside wheel bead
to back of the wheel center will be 2 inches.
No spacers allowed. No
light wheels allowed.
5-10.2
Shock Absorbers
Original
equipment gas shocks only. Shocks must be in original position.
No adjustable shocks allowed, no painting or removing numbers
from the shocks. No
Bilsteins, PRO or AFCO shocks allowed.
5-10.5
Wheel Base
Wheelbase
must be stock for make/model chassis used.
2009 Mini Stock Changes
6-2
GENERAL CAR BODY REQUIREMENTS
6-2.1
Car Bodies
(a)Cars
must be neat appearing. Exterior panels must remain as manufactured,
except for roll bar, tire and wheel installation.
(b)
Original dimensions of all bodies must remain as manufactured.
(c)
All cars must have complete steel bodies, stock to all measurements.
(d)
Full windshield must be used. Lexan type replacement may be used.
Lexan type rear window may be used. Rear quarter panel windows may
be covered with Lexan type material. No tinted windows permitted.
(e)
Bodies may be from 1975 to present year and must match chassis
manufacturer with a matching wheelbase of + or 2".
Technical director will have the final determination as to
body eligibility.
(f)
Rear spoiler permitted. Must be mounted and centered on the rear
edge of the rear deck lid. Maximum surface dimensions of 54 inches
wide and 4 inches in height. No side boxing permitted.
Top of spoiler no more than 5 higher than the base of the
rear window.
6-3.3
Front Fire Wall
Must
be in original position. Holes to engine compartment must be covered
with sheet metal. Firewall must be steel.
Firewall must be in stock location and remain attached to
stock floorboard. No aluminum or plastic permitted.
6-3.5
Hood and Truck Lids
Stock
hood and trunk lids must have inner reinforcements removed. Must use
positive pull-pin type fasteners.
Must be steel. No aluminum or fiberglass allowed.
6-9.3
Transmission
Stock
for make and model year used. No locked or posi-traction final drive
assemblies allowed. Floor kit shift linkage may be used. All gears
must be in working order. Automatic transmission allowed.
A:
Rear ends stock for year no locked or limited slip.
Open rear ends only
2009
RENEGADE CHANGES
12-4.
Cars must be front-wheel drive, with a minimum 103.5-inch wheelbase.
Wheelbase
must remain stock from side to side.
12-10. 1 ½ inch of
positive camber is allowed on the right front wheel only, and may
only be obtained by stock adjustments. Elongating the strut mounting
holes only is allowed. Camber may be gained in any safe manner
without cutting or moving the strut tower. Negative wheel camber on
the left front is not allowed.
2009 SPORT TRUCK CHANGES
10-1. All trucks
must be neat appearing. Cars should be painted with contrasting
colors and appropriate lettering and numbers.
10-2. Eligible
models:
Regular cab
trucks only. No extended, club or quad.
GM - S-10
Ford - Ranger
Dodge Dakota
Toyota Pick
up
Nissan Pick
up
All other models
must be approved by OPS before being permitted to compete.
10-20. 2 (two)
48" pipes may be added from the rear of the roof halo back.
10-21
Weight
- All trucks must weigh a minimum of
2600 pounds with 54% left side weight with the driver after
the race.
10-22
Truck bed may be tinned over minimum 22 gauge
steel. Must have a
2x2 access door er the fuel cell.
NO
CHANGES SPECIFIC TO REBELS
2009
OUTLAW/LADIES CHANGES
8-11. All body
panels must BE STEEL and remain stock for make and model year, no
cutting of panels except for drivers door for roll bar clearance.
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