A. Any front or rear, two-wheel drive, car
or mini-truck, having a minimum of 92" wheelbase,
with a four cylinder, normally aspirated engine (no
turbo or super-chargers). In all respects, the
entire vehicle, (except as specified) is to utilize
STOCK and unmodified parts for that vehicle.
B. Coupes and sedans only; no
convertibles, roadsters, etc.
C. All installations must
be teched and approved. C.W.R. reserves the right to
refuse any car that is not constructed within the
spirit of the rules.
A. Engine General Specifications:
1. 4-cylinder engine, no larger than
factory equipped cc. No Rotary Engines. No Titanium
2. Engines may not cross
MFG lines. Ford engine in Chevy body, etc.
3. Engine to remain in stock location
4. No motor plates allowed
5. Stock cast iron or steel
OEM parts only
Engine Specifications, Head:
1. Stock cast iron head only. No porting,
polishing, shot peening, acid etching, gasket
matching, flow honing- any steps to remove material
or change flow direction are not acceptable.
Aluminum heads allowed only on vehicles factory
equipped with them.
2. Stock type steel valve
train components only – valves, springs, etc.
3. Valve and valve seats
must be stock diameter.
4. No back cutting, or swirl polishing
5. Multi angle valve grinding acceptable,
valve seats must remain in stock location.
6. No roller
followers/cams. Unless factory (make, model, year)
C. Engine Specifications, Block:
1. Stock cast iron block
only, unless factory equipped otherwise (make,
model, year) No performance or after market blocks
2. Stock Stroke for engine being used.
3. Stock rods only. No
4. No grinding, lightening,
or polishing of rods.
5. No after market rods of any kind
6. No switching of MFG parts. I.E. no
Chevrolet or Toyota rods in Ford blocks.
7. No crank lightening or grinding. Any
procedure associated with a common rebuild is
8. Balancing of internal
engine components is acceptable. Balancing and
lightening are not the same; make sure your
machinist knows the difference.
A. Stock un-altered, intake manifold, and
fuel injection systems only No performance types
allowed. No modifications of any kind allowed.
Rear-wheel drive vehicles allowed to use either
holley 350 or 500.
B. Two-throttle return
3. Fuel Systems
A. Electric fuel pumps allowed only on
those vehicles factory equipped with them.
B. A fuel cell is strongly recommended and
MANDATORY for entries with gas tanks located behind
the rear axle. Maximum of 12 gallons Cell must be
enclosed in a Minimum 18 gauge steel can. Cell must
be securely mounted, (bolted or welded to support
bars). Fuel cell protection bar recommended. Fuel
cell should be no less than 8” from ground.
C. Fuel line running through driver’s
compartment not recommended. However, if they are,
they shall be enclosed in a rigid metal tube, and
must be approved by C.W.R. Tech official PRIOR to
competing in an event.
D. Filler spout to be inside trunk area and
sealed off from driver’s compartment.
E. Steel firewall required
between driver’s compartment and fuel compartment.
F. All holes must be completely covered
G. No fuel lines in rocker panels.
H. Pump gas only! Race
fuel, Nitrous, or like products are not permitted.
4. Cooling System
A. Shroud above fan mandatory, if running
a mechanical fan.
B. Electric fans allowed.
C. Radiator over-flow required.
D. Radiator must remain in
stock location. Mounts may be
5. Electrical System
A. If not in stock
location, battery must be SECURELY mounted behind
driver, on floorboard, in a minimum 18-gauge steel,
box. Marine type plastic boxes allowed. Battery
cables must have grommets on box to prevent
B. All cars will have starters in good
C. All cars must have an electrical system
disable switch mounted behind driver’s seat,
accessible from outside the car, and clearly marked.
An additional auxiliary switch is optional.
D. No high-performance
aftermarket ignition systems, or computer components
(chips) permitted. RPM LIMITS WILL BE CHECKED.E.
Radio communications are not allowed.
A. Stock exhaust manifolds only. No
modifications of any kind permitted.
B. Rear wheel drive vehicles allowed to
run aftermarket header.
C. Muffler required.
D. Exhaust must exit away
from the drivers’ compartment.
A. All cars will maintain stock appearance
B. Floor pan, body, and chassis must be
complete as OEM. Doors may be skinned to accommodate
roll cage and ease in repair, all other components
must be left complete and in tact.
C. Full stock floorboards
and firewalls mandatory. All holes must be covered
in a safe manner.
D. No chopping of roof or
narrowing of body. Car must retain original
bodylines and dimensions.
E. Trunks require (2) pins
at rear edge, and (2) pins at leading edge if hinges
are not used.
F. Hoods require (2) pins across front,
and (2) pins at the rear if hinges are not used.
G. Items may be removed to lighten the car
that can be unbolted, (not torched, drilled or cut
out). For example, hinges, latches, dashboard, etc.
H. Well-secured tow mounts
required front and rear.
A. All cars to be neatly and brightly
B. Numbers must be minimum
of 18" tall on roof, and each door. Numbers on roof
to face toward scoring tower. If it is determined
that scoring cannot read number, it must be changed
before the next scheduled event.
C. Number will be neatly placed in right
front headlight as large as possible that fits
neatly in assigned area. Car number will also be
placed on the top right hand portion of the
windshield, 3" high.
D. Hood scoops, skirts, and other items,
which improve the appearance of your car, are
E. Advertising that is deemed
unsuitable/offensive not allowed. Promoter has final
F. Entrees will be painted
and maintained reflecting a favorable image. Dents
should be reasonably repaired week to week.
A. A Serviceable windshield
is required (NO CRACKS). Stock windshields may and
should be replaced with screen or bars.
Minimum of 3 vertical 3/8" dia. bars from top of
roll cage to dash bar in front of driver
B. All external lights must be removed.
C. Braces required in front
of driver of windshield opening.
A. No tubular sub-frame
B. No full tubular or roll
bar frame permitted.
C. Dragging of any part may
be cause for immediate posting (black flag) from the
race. You will not be allowed back on the track
until the problem has been fixed and checked by an
A. Stock suspension
components only. Only stated modifications allowed.
B. No moving of suspension
mounting points other than those outlined in the
C. No interchanging,
lengthening, or shortening of suspension components
(i.e. control arms) permitted.
D. No adjustable or aluminum
E. Springs must be mounted
in stock location.
F. Stock sway bar hardware only. No
aftermarket sway bars.
G. Adjustable inner spring spacers not
allowed.H. Shocks must mount in stock location
using stock mounts. No upside-down mounting.
I. No spring spacers
J. Strut mounting holes may not be
A. Stock steering components only,
including rack, tie rod ends, etc.
B. Steering wheel
recommended to be attached with an approved quick
C. No steering quickeners.
14. Drive-train Components
A. Locked, Limited slip, or Posi-Traction
differentials not allowed on front wheel drive
B. Stock transmissions, for make and model
only. No modifications allowed.
C. All gears must be operable, including
D. Stock clutch, pressure
plate, and flywheel, for make, model, and year only.
No lightening of flywheel permitted. No lightweight
E. The flywheel housing
must have a means to CLEARLY inspect ALL components.
F. Automatic transmissions
require functioning torque converter.
G. Drive shaft is to be
painted white and have a catch loop just behind
H. No composite or homemade
15. Wheels, Tires & BrakesA. D.O.T.
APPROVED STREET TIRES ONLY! NO RACE TYPE TIRES
ALLOWED. TRACK INSPECTOR WILL HAVE FINAL SAY ON
TIRES SO ASK BEFORE BUYING SOMETHING QUESTIONABLE.
(13’-15”, 60 SERIES MINIMUM). ALL 4 TIRES MUST BE OF
THE SAME INCH SIZE (ALL 13”, ALL 14”, or ALL 15”).
Race wheels strongly recommended!B. MAXIMUM of
7” STEEL wheels with a minimum backspace of 3”. All
lugs must be serviceable and must have 1” lug nuts
on all lugs. TIRE TREATMENTS OF ANY KIND NOT
ALLOWED! C. If tires/wheels protrude further
than 1” from side of car, a type of nerf-bar must
run completely between wheel well openings as well
as in front and behind wheel well openings in order
to prevent tire jumping when running side-by-side
with other cars. Bars should be constructed of no
less than ¾” steel tubing, be ONE SINGLE STRAIGHT
tube, be mounted parallel to the ground in line with
front wheel bearing, and have rounded or chamfered
edges to prevent cutting of competitors’ tires. Bars
to be no less than 1” from tires furthest point from
side of car. Excessive rub bars will not be allowed.
Inspector will have final say.D. One valve stem
per wheel maximum. E. The use of any bleeder
valve prohibited. F. Stock brake components only
(make, model, and year). G. All four brakes must
function at all times. Proportioning valves or
shut-off’s not allowed.
16. Roll Cage
A. The cage will be constructed at minimum
of 1 ½” .095 roll bar tubing.
B. Minimum 4-point roll cage required,
with gussets at 90 degree joining points.
C. No galvanized or soft metals such as
aluminum or exhaust tubing allowed.
D. The cage may be enhanced for safety and
to defend from damage, subject to approval.
E. The cage will be secured at four
points, sandwiched with 1/8 min steel plates to the
floor, and at additional points as desired and
F. The cage will come up around the
driver, forming a rectangle on the roof.
G. Drivers door will have a
minimum of three bars. 1/8" steel plating covering
driver door bars from top to bottom and from front
to rear uprights mandatory. Passenger side will have
a minimum of 2 bars.
H. Vent window upright “A” pillar support
bar required driver and passenger side, minimum 1”
I. The cage is to be welded and secured in
a quality manner with the ultimate intention of
protecting the driver.
J. Roll bar padding is required on any
bars that are in the drivers contact area.
K. SHORTY, OFFSET, OR
PARTIAL CAGES NOT ALLOWED!
L. Driver-side floorboard must have
minimum 1/8” steel plate from firewall to rear of
drivers’ seat at least as wide as bottom of
M. If any bar in the car is
in question, the driver may be asked to drill a
3/16” hole in it to allow the inspector to check it.
17. Seats and Safety Equipment
Aluminum, professionally built high back racing seat
mandatory. Seat must be securely bolted to a mount
assembly, that is an integral part of the roll cage.
Seat will not be attached to the factory
B. A MINIMUM 4 point safety harness, with
quick release is mandatory! Submarine belts
recommended. All belts shall be attached to roll
cage. Belts to be a maximum of 7 years old.
C. A window safety net must be properly
installed, (NO WIRE TIES!) meaning it is to be
attached top and bottom to the roll cage, not the
door/roof. A quick release mechanism will be easily
accessible from the outside.
D. Full-face Helmet must meet Snell 95
testing standards, bear proper identification, and
have no sign of prior damage.
E. Neck braces and gloves strongly
suggested, and mandatory at many tracks. Approved
racing shoes recommended.
F. Drivers’ Fire suit mandatory at all
G. Eye protection is mandatory and must be
in proper place at all times.
H. Fire extinguisher RECOMMENDED.
Extinguisher securely mounted in the car within
drivers reach while strapped in.
I. Car and driver will be
required to meet ALL safety rules PRIOR to racing
Minimum WeightsA. Checked post-race with driver
in car. All added weight must be outside of
drivers’ compartment, painted white, and have car
number clearly marked on it.
B. Cars with more than 2 valves per
cylinder ADD 50 lbs. C. REAR WHEEL DRIVE
CARS ALLOWED 100 lbs WEIGHT BREAK (SEE
BELOW). ENGINE DISPLACEMENT R.W.D.
MINIMUM WEIGHT F.W.D. MINIMUM WEIGHT
A. ENGINE SIZE AND REQUIRED CAR WEIGHT MUST BE
CLEARLY LETTERED ON THE RIGHT FRONT FENDER, DOOR, OR
ON RIGHT SIDE OF HOOD FOR EASY VIEWING OF
OFFICIALS.EXAMPLE: 2300cc. 2325#----1600cc-
2150#THE WEIGHT RULE MAY BE ADJUSTED TO EVEN THE
A. All cars are subject to inspection by a
C.W.R. Inspector, at any time, and in any manner, as
determined by the Promoter/Race Director. All
decisions regarding the timing and manner of the
inspections, as well as which cars will be
inspected, are at the Promoter/Racedirectors
B. Drivers must take whatever steps
requested by the C.W.R. Inspector, including tear
down of any part of the car, to facilitate
C. Only those persons
approved by C.W.R. Inspector may be admitted to the
D. Promoter/Racedirector mandates
inspections after the event: If a car that has
competed in the event is taken from the tech
inspection area and/or racing premises without
permission of tech official, that car and driver
will be disqualified. Unless the competitor can
prove beyond a reasonable doubt that the violation
was caused by circumstances the competitor could not
control the disqualification will stand.
E. Any driver who refuses
inspection when requested will receive a fine of
$50.00, disqualification, and loss of championship
points and pay for that evenings’ events.
Other General Regulations