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#1- Front
stub
1.1 GM factory built 1970 ½ - 1981 F car [Camaro
& Firebird] front stub must be used
1.2 Stub must measure at 24 in front and
24 behind ball joint centerline and 28 ½
inside rails
1.3 GM factory F car cross member or exact
replacement must be used; modifications for
clearances only
1.4 steering box and idler arm must remain
in stock location
1.5 front horns, ahead of steering box, may
be rebuilt with tubing
1.6 engine location: #1 spark plug must be
within 1 of ball joint centerline
1.7 front stub other than 1.1 must be
approved prior to entry
#2 Front suspension
2.1 must use OEM or OEM direct replacement
lower A-frames in stock location
2.2 must use 5 or 5 ½ diameter springs
mounted in stock location
2.3 OEM, OEM direct replacement, or purpose
built upper A-frames are allowed
2.4 OEM, OEM direct replacement, or purpose
built tubular tie rods are allowed
2.5 purpose built hubs and spindles are
encouraged
2.6 jacking bolts are allowed
#3- Frame between front stub and trailing
arm mounting points [main frame]
3.1 must be constructed of 2x2 square or 1
Ύ round tubing [minimums]
3.2 round tubing must be 4130 chrome moly or
DOM with minimum wall thickness of .083
3.3 each main frame rail must extend
rearward to within a maximum of 21 to
centerline of rear axle
#4- Rear suspension
4.1 coil or leaf [single or multiple]
springs allowed
4.2 three point only / no four point
4.3 may use panhard bar or W link
4.4 no bird cages
4.5 no brake floaters
4.6 only one shock per wheel
4.7 coil over shocks allowed on rear only
4.8 coil eliminators / sliders are allowed
4.9 no fifth coil over torque arms; no
springs or shocks on torque arms
4.10 no spring or rubber mounted trailing
arms
4.11 lower trailing arms must be solid
mounted
4.12 90/10 shock may be mounted on top of
rear end housing; it must be parallel to 3rd
link or torque arm centered +/- 6 on
housing
4.13 maximum of four coil springs per car
#5 Rear end
5.1 Closed late model type quick change
rear end with steel tubes allowed.
5.2 Ford 9in floater rear end allowed with
steel housing and tubes.
5.3 rear end gears must be locked
5.4 floatertype with wide five hubs
encouraged and will become mandatory
5.5 no torque sensing devices
#6 Wheelbase
6.1 minimum of 104 with ½ tolerance
6.2 measured with stick center of hub to
center of hub
#7 Shocks
7.1 one mono tube or twin tube shock per
wheel
7.2 Schrader valve shock option is allowed;
no remote shock gas reservoirs
7.3 no compression or rebound adjustable
[clicker] shocks of any type
7.4 no remote spring or shock adjustment
devices allowed
7.5 coil over shocks allowed on rear only
7.6 coil eliminators / sliders are allowed
#8 Brakes
8.1 must be able to demonstrate operational
4-wheel braking system
#9 Transmission, bell housing,
driveshaft
9.1 OEM, direct OEM replacement, Bert, Brinn,
or Falcon aluminum [no magnesium]
transmission
9.2 bell housing must accommodate 81/2
(minimum size) flywheel / starter plate
9.3 automatic transmission does not need
torque converter
9.4 automatic transmission must use an SFI
approved explosion proof aluminum housing or
be surrounded by SFI approved explosion
shield / blanket
9.5 must be able to demonstrate forward,
reverse, and neutral
9.6 no accessories other than starter may be
mounted to the bell housing
9.7 driveshaft must be a minimum of 2
diameter; must be steel; must be white
9.8 driveshaft must have sling / hoop
9.9 an L shaped 4 x 8 x 1/8th aluminum
leg saver is mandatory; device must be
mounted left of the driveshaft extending
from the rear of transmission to the rear of
the seat; 4 over the driveshaft and 8
beside the driveshaft; dimensions are
approximate other than 1/8th minimum
thickness
#10 Clutch and flywheel
10.1 minimum flywheel or starter plate
diameter is 8 ½ inches
10.2 any single disk type or multiple disk
clutch allowed
10.3 aluminum pressure plates, mini
clutches, Coyote clutches not allowed
10.4 minimum clutch diameter is 5 inches
[for cars using OEM / direct OEM replacement
manual transmission]
10.5 scatter shield is mandatory for cars
with manual clutch
#11 Ignition
11.1 all cars must be equipped with a
functioning self starter
11.2 any HEI, point style, or unaltered MSD
or unaltered PROCOMP distributor
11.3 only one MSD or PROCOMP box allowed
11.4 no magnetos
11.5 single 12 volt battery only
#12 Body
12.1 purpose built dirt late model body
which closely resembles WoO late model
series car only
12.2 maximum height of doors, quarter
panels, trunk lid and fenders is 40 from
ground
12.3 maximum width 76 at firewall; maximum
width 72 at rear deck
12.4 roof must be mounted level to the body
12.5 maximum roof size front-to-back is 54;
minimum roof size front-to-back is 44
12.6 maximum roof size side-to-side is 52;
minimum roof size side-to-side is 48
12.7 rear roof supports must be uniform in
design and location; maximum 43 long at
base; may not extend above the roof, must
extend to within 1 to edge of body
12.8 rear roof supports may bow in or out a
maximum of 2 as viewed from rear of car
12.9 rear spoiler may not exceed 6x72;
must be mounted flush on rear deck
12.10 spoiler supports must be triangular
shape; maximum of three; maximum dimensions
8 x 23
12.11 wings, spoilers, deflectors, or any
aero devices other than rear spoiler are not
allowed
12.12 tires may not protrude more than 4
beyond the outer edge of the body
#13 - Bumpers
13.1 front bumper and side skid rails must
be mounted inside bumper cover and body
13.2 purpose built nose piece may not be
modified; may not extend more than 52 from
center of hub
13.3 rear bumper may not extend beyond 8 of
frame on either side; ends of bumper tubing
must be capped
#14 Weight [measured in track scale
pounds]
14.1 track scales are official
14.2 minimum weight is 2700# after race with
driver without adding anything; 2% tolerance
14.3 ballast must be attached with at least
two bolts of minimum ½ diameter passing
through ballast and a substantial member of
the car; may not be welded into place
14.4 ballast must be painted white and must
have car identified on it
#15 Engine
15.1 only cast iron V8 block
15.2 maximum displacement is 361 cubic
inches for Ford or GM; 370 for Chrysler
15.3 no 400 CI blocks
15.4 only cast iron cylinder heads; casting
and/or part numbers may not be removed
15.5 heads must retain OEM port centers and
spark plug location; angle milling is
allowed
15.6 only 23 degree heads for GM are
allowed; no raised runner heads;
specifically RHS part #s 12801, 12802,
12803, 12804, 12805, 12806 not allowed;
others not allowed may be added
15.7 only N1 style Ford heads and only W2 or
RT style Mopar heads are allowed
15.8 any solid or hydraulic camshaft; no
roller or mushroom camshafts
15.9 any solid or hydraulic lifters; no
roller or mushroom lifters
15.10 spark plug #1 must be within 1 of
centerline of ball joints
15.11 no dry sump oiling system; no external
oil pumps or Accu -sumps
15.12 Site plug optoional in oil pan on
drivers side of oil pan, towards the front
of pan, 3 to 6 inches back OR be
prepared to pull oil pan.
Note: heads may get further definition;
principle is that what we have is legal and
that new expensive options are not
15.13 604 sealed crate with 700 4barrel will
be allowed.
#16 Carburetor
16.1 one Holley 4412 [500cfm/two barrel]
16.2 maximum venturi bore is 1 3/8
16.3 choke horn must be retained
16.4 maximum of two holes may be drilled in
butterfly
16.5 choke plate, shaft, and linkage may be
removed
#17 Fuel and Fuel Delivery
17.1 gasoline only
17.2 fuel cell is mandatory
17.3 fuel cell must be mounted in a minimum
20 gauge metal box securely mounted by two
2X1/4 steel straps or 1 square tubing
which completely surrounds the cell box;
minimum dimensions
17.4 fuel cell must be mounted in trunk area
and not lower than center of the rear axle
housing
17.5 fuel lines should be routed outside of
drivers compartment; lines inside the
drivers compartment must be braided or
enclosed in metal conduit
#18 Wheels and Tires
18.1 only 10X15 steel wheels
18.2 American Racer EC Tires ONLY. (Only
exception is for tour shows).
#19 Safety
host track race car and driver equipment
safety requirements will apply. Host track
officials will inspect for compliance.
#20 Other
20.1 we are guests of the host track;
cooperate with track officials
20.2 RACEceiver or Solo II is mandatory; no
two way radios
20.3 no mirrors
20.4 Series Marketing Partner decals will be
provided and must be placed on car in
conformance with location directions;
failure to comply will result in no purse
and no points
20.5 no electronic or computer controlled
traction devices of any kind
ALL CRATES MUST HAVE PAPERWORK FROM GM OR
AUTHORIZED REPAIR FACILITIES MATCHING NEW
SEAL NUMBERS OR ARE SUBJECT TO TECH & TEAR
DOWN.
**While the above rules offer a good
outline, not everything can be covered by a
written rule. If a car has a part that no
one else has, and its not mentioned in
rules, its not assumed legal. Ask
first. If you want to run anything not
covered ask Troy Shuknecht at 585-409-1366
or 585-409-4061 first before doing so. If
you dont ask and anything is found it will
automatically be ruled illegal. Any item
found illegal will be
confiscated!
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