| 2008
OUTLAW HOBBY STOCKS
Hobby stocks will run
for USRA National Points
TABLE OF CONTENTS
Body
Chassis
Weight Rule
Roll Cage
Suspension
Drive Train
Wheels & Tires
Brakes
Battery
Fuel
Electronics
Engines (Block,
Cylinder Heads, Drive Train)
Engines (Intake, Carb,
Exhaust, Pumps)
Numbers
Safety
BODY
American made stock passenger automobile with factory
steel top. No Camaros, Firebirds or Mustangs. Sunroofs
and T-tops must be reinforced and enclosed. All bodies
must be approved OEM. No spoilers, wings, skirts, air
scoops or anything that alters the stock appearance. No
aluminum hoods. Hood must be separate from fenders - no
one-piece or tilt front ends. Gutting of hoods and trunk
lids allowed. All hoods and trunks must be securely
fastened and the back of hood must be sealed off from
driver's compartment with metal. Maximum seven-inch metal
sun visor may be added to top of windshield opening,
only. Windshield posts & quarter posts must be stock
and in stock location. All sharp edges, torn fenders and
body panels to be repaired prior to next race. Must have
a minimum of (4) windshield bars in front of driver. Must
have screen in front of these (4) bars, must be securely
fastened, no zip ties. Outside body width from center of
door to center of door can be no wider than (72) inches.
All glass, plastic, upholstery, rear seat, lights,
mirrors, and chrome removed. Dash is not to extend more
than 24 inches back from center of lower windshield
opening. Dash must be flat except for cowl/firewall in
front of driver. Cowl/firewall must be complete &
unaltered. All holes in firewall & floor must be
covered with metal. No other interior tin or covers. All
doors must be secured shut (welded, chained, bolted, no
rivets) the front inner wheel wells may be removed. Rear
wheel wells may be removed to middle seam. Rub rails
will be allowed. Maximum size of (1)” by (2)”
and painted to match body. Plastic after market nose
pieces allowed. No homemade nose pieces. Plastic after
market tail pieces allowed. No homemade tail pieces. Tail
lights & rear finish panel must be completely covered
with solid metal, no holes. Complete stock floor pan
mandatory. Rockers & kick panels must be fully
enclosed with metal. Bolts must be flat head or
countersink.
CHASSIS
Frame must match body. 109-inch wheelbase minimum for
unibody cars, 107.5-inch minimum for full frame cars.
Frames may be "X" braced. Rear of frame behind
rear tires, from a point no further forward than one inch
behind the factory seam, may be replaced in stock
location with two-inch by three-inch steel tubing with
.095-inch wall thickness. Factory seam must remain
visible. Must replace the same length material removed.
Unibodies must be tied - rear frame to front frame. No
station wagons, convertibles, front-wheel drive,
four-wheel drive or rear engines. Factory bumpers must be
in stock location. Front and rear bumpers must be capped
to fender the width of the bumper. No reinforcement of
bumpers.
WEIGHT RULE
All cars must weigh a minimum of 3200 LBS with driver
after the race. Weights must be fastened with a minimum
qty of (2) half inch diameter bolts. No weights inside of
driver compartment. Weights must be in trunk or engine
compartment. Weights must be painted white with car
number on them. Any out of trunk weight must be
clamp on.
ROLL CAGE
Must use .095 -inch tubing, at least 1.666-inch diameter
for main cage and door bars. SIX post roll cage must be
used, front and rear hoop welded to the OEM frame. Rear
hoop must have "X" brace, front down-bars must
be tied together. Must be minimum of 40 inches between
front and rear down bars at top of door panel. No more
than 41 inches from top center of windshield to front
edge of rear hoop; no more than 13 inches to front edge
of front hoop and top halo must be no less than 40 inches
across, outside to outside. Rear kickers and front hoop
must be minimum 1.25-inch tubing, with .083-inch wall
thickness. Three horizontal door bars on both sides are
mandatory. Minimum of four uprights tied from frame to
top door bar on driver side, three on passenger side. May
have two bars for protection in front of radiator, behind
bumper, within confines of body, no wider than stock
frame horns. May tie front horns together. All bars,
front and rear, must be inside body. Must have minimum of
one cross bar in top of halo of roll cage. Drivers side
steel door plate mandatory, 18 gauge or .049-inch minimum
thickness metal. Must be securely welded to outside of
door bars on driver's side. Plate must cover the area
from the top door bar to the rocker panel and from the
rear down post to five inches in front of the seat. Must
be visible for inspection. Front hoops allowed.
Absolutely no square tubing or galvanized pipe allowed.
Fuel cell protection bar may be used, mounted frame rail
to frame rail, no higher than the fuel cell and inside
the trunk area. Maximum 1.75-inch pipe.
“Whiplash” bar required at ear level, fastened
to roll cage. Rear of seat can not be any further back
than (40) inches from top center windshield seam.
SUSPENSION
Must be original type suspension and match the frame.
Steel springs only. Quick steer boxes allowed. No remote
reservoirs on power steering pumps. All shocks must be
mounted in stock location. Shocks may be claimed for $30
each. Refusal to sell shocks will result in a penalty. No
spacers, lumber, or chains allowed. Front tubular upper
A-frames optional. Non-adjustable and in stock location.
DRIVE TRAIN
Highly recommended: Steel or Aluminum plate, (1/4) inch
thick, over the top of drive shaft tunnel and along
driver’s side of drive shaft tunnel to help
prevent leg injuries. Minimum 2.5-inch diameter steel
driveshaft only and must be painted white. All forward
and reverse gears must be operational. Transmission must
be approved OEM automatic, with original bellhousing and
functional stock torque converter, no after market
converters, containing a minimum of three quarts of
fluid, or approved OEM single disc-type clutch inside an
explosion-proof steel bellhousing on manual transmission
only. No Corvette or aluminum flywheels. Automatic must
have an approved scattershield (may be constructed of
quarter-inch by three-inch steel, 270 degrees around
flexplate or flywheel. Torque converter must have a
minimum 1/8-inch plug. Steel axles only. Rear end may be
welded or mini spool, no full spools. No floater rear
ends. Rear suspension must match frame. No electronic or
mechanical traction control devices allowed. No Detroit
lockers. Nine inch Ford rear-end required. Must be
mounted like stock rear end for that make and model.
Transmission coolers allowed, must be mounted in
engine compartment. Rear springs mounted on center
of rear housing. No extra holes allowed on rear end
mounts.
WHEELS & TIRES
American Racer G-60 or Hoosier G-60 will be allowed.
Tires must be inside body. No mud tires, no racing tires
(except G-60) or fancy, exotic, trick gumball tires
allowed. No softening, conditioning, siping or grooving
allowed. No racing wheels or mag wheels allowed. Steel
spoke wheels allowed. Maximum eight-inch wheels.
Beadlock on right rear optional. Reinforcing of
wheels recommended. One inch lug nuts required.
BRAKES
Approved OEM brakes on all four wheels must work. No OEM
Antilock Brake Systems. After market brake
pedal/master cylinder assemblies allowed. No brake
shut-off or bias allowed. No plastic brake lines. Rear
OEM disc brakes are optional.
BATTERY
(1) 12-volt battery only, must be enclosed in a
marine-type case, fully covered and securely mounted to
frame or roll cage in a metal only in trunk area.
FUEL
Pump gas or Ethanol blend fuel recommended. No Methanol.
Racing fuel cell required, no boat or stock automotive
fuel tanks. Must be securely fastened inside trunk of
car. Fuel cell must be mounted on a 1/8” flat steel
plate that is welded from frame rail to frame rail
totally covering the bottom of the fuel cell. Must be
attached with (2) steel straps mounted from the bottom of
the fuel cell to the top of fuel cell. Firewall must be
between driver and fuel cell. All cell mounts must be
steel, attached to frame/cage. No adjustable fuel cell
mounts. Fuel cell must be in a steel container. Fuel cell
vents must have check valves Fuel lines through driver
compartment must be in metal pipe or metal conduit. No
fuel filters in driver's compartment.
ELECTRONICS
No transmitting or listening devices allowed in car. No
electronic monitoring computer devices capable of storing
or transmitting information except tach allowed on cars.
No digital gauges allowed on car. No ignition control
boxes allowed, OEM ignition only. No electronic traction
control devices allowed. The RACEceiver Elite 1600 will
be mandatory. Channel must be 454.000 only.
ENGINES (BLOCK, CYLINDER
HEADS, DRIVE TRAIN)
9.5 to 1 maximum compression as checked with the
whistler. GM & Ford engines 360 cubic inch max.
Chrysler engines 370 cubic inch max. Engines must
appear strictly stock for that make and model, in stock
location and in the original mounts. No 400 or larger
cubic inch parts allowed. Stroke must match block. Flat
top pistons only. Cast iron cylinder heads only. No angle
milling of cylinder heads allowed. Cylinder heads must be
unaltered approved OEM. No porting or polishing or
alterations of any kind. Clean up allowed. GM heads must
be 360 C.I. only and 76cc or larger. Approved steel head
numbers for GM engines are – 014, 195, 267, 330,
336, 339, 388, 393, 441, 445, 454, 487, 493, 545, 598,
624, 642, 709, 799, 813, 862, 881, 882, 920, 991, 993,
997. Ford engines, no after market or SVO heads. Chrysler
engines, no after market or W2 heads. No full roller or
roller tip rocker arms. No roller lifters. No stud
girdles. Starter must bolt in stock location. No gear
drives.
ENGINES (INTAKE, CARB,
EXHAUST, PUMPS)
Must have approved OEM cast iron two barrel intake
manifold, no high rise manifolds allowed. Low profile
dual plane aluminum intake may use a two barrel spacer on
dual plane aluminum intake. No porting or polishing
or alterations of any kind to intake manifold. All
engines must run a stock two barrel carburetor, Rochester
on GM, Motorcraft or Holley on Ford. No Holley’s on
GM. May remove choke, bead blasting allowed but no other
alterations allowed. (NOTE: Carburetor may be claimed for
$50.) Conventional air cleaner housings only. No top
flow air cleaner housings. No cold air boxes or air
cleaner duct work allowed. Headers are allowed. No 180
degree headers. Headers must extend to front door. No
side discharge. Mufflers are recommended. No electric
fuel pumps allowed. Cast or Aluminum stock type water
pumps allowed. Steel or aluminum pulleys allowed. Any
overflow tubes are to be directed to the ground,
between frame rails. Minimum two-core approved steel or
aluminum radiator allowed. Accumulators and Accusumps
must be mounted under the hood. All cars must have the
capability of starting without being pushed or pulled at
the beginning of the night. All cars must join the lineup
on demand, unaided, or go to the rear of that race.
Unaltered USRA restrictor plate with (1-3/8) inch
throttle bores maximum will be implemented if needed.
Maximum of (3) stock carburetor gaskets may be used. No
spacers allowed. GM restrictor plates can be
purchased from USRA or Performance One. Ford
and Mopar plates may be manufactured by car owner, but
must be approved and certified by USRA or track official
before competing. No engine claim and no cylinder head
claim.
NUMBERS
All cars must be numbered with large, legible numbers on
both sides, top and rear panel. Numbers on side of car
must be at least (4) inches wide and (20) inches high.
Numbers on top must be at least (4) inches wide and (30)
inches high.
SAFETY
Five point safety belts, sub belt and shoulder harness
required. (Recommended not to be more than two years old)
SFI approved full fire suit, fire retardant neck brace
and fire retardant gloves required, shoes
recommended. Helmets must be Snell SA95, Snell 2000 or
Snell 2005. Helmet must be worn at all times car is on
the track and must accompany vehicle at time of
inspection. Roll bar padding required in driver
compartment. Fire retardant padding recommended. Belts
must be mounted to cage. Window net required. Window net
to be mounted so latch is at top front of driver side
window. Arm restraints optional. Kill switch required
within easy reach of driver and must be clearly marked
"OFF" and "ON". 360-degree driveshaft
loop is required and must be constructed of at least
quarter-inch by two-inch steel, or one-inch tubing, and
should be mounted six inches back from front U-joint. All
cars must have a high-back aluminum racing seat fastened
to roll cage, NOT bolted to the floor board. Front window
screen required in driver’s area. Top of seat must
be fastened to prevent from bending backwards.
ALL RULES AND REGULATIONS
COVERED MAY BE CHANGED AT ANY TIME DURING THE YEAR TO
PROMOTE THE ADVANCEMENT OR ENFORCEMENT OF AUTO
RACING. FOR INFORMATION CALL: Art Nordstrom 605-594-6433
(ext.130)
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