Colorado Outlaw Racing Assoc.
EPCS General Rules
Rules are highlighted in yellow)
SPORTSMANSHIP -- Racing is a very emotional sport. As such, good sportsmanship is the key element of any competitors racing program. This must include respect for all participants – drivers, owners, pit crews and officials. For our part we will make very effort with our rules regardless of whom or what is involved. We will treat all participants with respect and expect similar treatment in return. A racer’s pit area is his/her castle – therefore please stay out of other racer’s pit areas, especially after an incident where you have been involved with that racer. Drivers – remember that you are responsible for the actions of your crews. Any offending parties will be fined appropriately and disciplinary actions will be initiated as deemed necessary.
rules and/or regulations set forth herein are designed to provide for the
orderly conduct of racing events and to establish minimum acceptable
requirements for such events. These rules shall govern the condition of all
events, and by participating in these events, all participants are deemed to
have complied with these rules. NO EXPRESSED OR IMPLIED WARRANTY OF SAFETY SHALL
RESULT FROM PUBLICATIONS OF OR COMPLIANCE WITH THESE RULES AND/OR REGULATIONS.
They are intended as a guide for the conduct of the sport and are in no way a
guarantee against injury or death to a participant, spectator or official. The
race director shall be empowered to permit reasonable and appropriate deviation
from any of the specifications herein or impose any further restrictions that in
his opinion do not alter the minimum acceptable requirements. NO EXPRESSED OR
IMPLIED WARRANTY OF SAFETY SHALL RESULT FROM SUCH ALTERATION OF SPECIFICATIONS.
Any interpretation or deviation of these rules is left to the discretion of the
officials. Their decision is final.
driver holding an IMCA license during the same calendar year in any other
division may compete in this division, except: licensed Stock Car and Hobby
Stock drivers (must still purchase SportMod™ license).
SAFETY EQUIPMENT: Rules
apply at all times car is on track. Snell-rated SA2005 or SA2010 helmet
required. Roll bar padding required in driver compartment. Recommended: Fire
retardant padding. SFI-approved full fire suit required. Fire retardant
gloves, shoes and neck brace (or head and neck restraint) required. Right and
left seat head supports required if using head
and neck restraint system.
Fire retardant head sock and underwear, collapsible steering shaft.
Driver-side window net required, minimum 16 inch by 20 inch ribbon or mesh
style, and must be mounted to roll cage so latch is at top front of window.
Minimum three inch (two inch with head restraint system) wide SFI-approved five
point safety belt assembly required, must be mounted securely to main
Recommended: Safety belts no more than two years old. Kill switch
required within easy reach of driver and must be clearly marked ‘OFF’ and
or newer OEM perimeter American rear-wheel drive passenger car frame only. No
sports car frames. Frame must be full and complete, cannot be widened or
narrowed, and must be able to support roll cage on both sides. Exceptions are:
weight jack in original center line of spring tower allowed; frame may be cut a
maximum 36 inches forward from center of rear end housing; horns may be removed
in front of steering box and notched maximum one inch at bottom for tie rod
clearance; front crossmember may be notched and boxed for radiator and/or
steering clearance; maximum seven inch wide opening in side of spring tower for
spring removal. Maximum two inch wide by four inch tall frame stiffener may be
welded directly to outside of left side frame rail. See www.imca.com for OEM
frame dimensions. Minimum wheelbase 108 inches, maximum 112 inches, both sides.
Maximum overall width shall not exceed 78 inches from outside of tire to outside
of tire. For cars using OEM rear suspension design, rear of frame behind rear
tires no further forward than one inch behind factory seam, may be replaced with
two inch by three inch steel tubing with 0.095 inch wall thickness. No part of
frame can be lower than four inches from ground except front crossmember.
ROLL CAGE: Must
consist of continuous hoops, minimum 1.75 inch O.D. tubing, with minimum wall
thickness of 0.095 inch for main cage, frame-mounted in at least six places. Recommended:
low carbon or mild steel. Must consist of a configuration of front, rear and
top hoops connected by tubing on sides or side hoops. Driver’s head must not
protrude outside cage with helmet on. Roll cage must be securely supported and
braced with minimum one cross bar in top halo. Foot protection bar required.
Main cage no further forward than rear of engine. All bars forward of cage must
be lower than hood.
DOOR BARS: All
driver side door bars and uprights must be minimum 1.5 inch O.D. with 0.083 inch
wall thickness. Minimum three driver side door bars, parallel to ground and
perpendicular to driver, and welded to front and rear of roll cage. Passenger
side must have at least one cross door bar, horizontal or angled, minimum 1.25
inch O.D. with 0.083 inch wall thickness, and one top door bar, minimum 1.5 inch
O.D. with 0.083 inch wall thickness. Steel door plate, 18 gauge or 0.049 inch
minimum thickness, must be securely welded to outside of driver side door bars
and cover area from top door bar to bottom door bar and from rear hoop down-post
to five inches in front of seat. Must be visible for inspection.
) No composite or plastic body panels
allowed except roof rock guard and hood scoop. Body must be same width, front to
rear, and parallel to OEM frame. Aluminum nose panel must be flat. Maximum 2.250
inch side fins allowed on aluminum nose. IMCA-approved
plastic nosepieces allowed. Plastic nose must be mounted in an approved manner
and can extend no further back than front of hood. Nose piece must remain inside
confines of front bumper and be no lower than two inches below frame horns.
Cooling holes allowed. Engine compartment must remain open (no side panels).
Hood must be level or sloped down at front, enclosed and
maximum two inches above interior
deck at rear. No panel in front of right door to engine compartment. No inner
panels. No car covers. Must have front and rear roof support posts. Driver and
passenger side windows must have at least 12 inch opening (height and width),
measured at center of window, between lowest point at top and highest point at
bottom. May use lexan in window side panels. Roof must be fiberglass or
aluminum, full size and rounded down in all directions (see diagram). No dished
roofs allowed. Driver roof hatch allowed. Maximum 1.5 inch rolled down rock
guard allowed on roof front. Maximum four inch roof sides allowed. Maximum one
inch ridge down sides of roof. Maximum one inch rear roof stiffener (must face
down). Sail panels must remain within the dimensions of drawing and may not
extend ahead of back of seat. Rear spoiler allowed, maximum five inches in
material height and maximum 66 inches wide. Spoiler may have rear stiffener,
must be one inch or more down from top. Maximum three spoiler braces allowed,
must be mounted in line. Spoiler braces must resemble all aspects of drawing.
Spoiler must be mounted within confines of spoiler braces. No additional fins,
lips or wings allowed. Maximum four inch plastic skirting allowed on bottom of
doors and quarters. No reflective doors or quarter panels. Tires must be widest
part of car. Car number must be minimum four inches thick and 20 inches tall and
clearly visible, on both sides and roof of car; six inches tall on rear and
front if possible.
DRIVER COMPARTMENT: Must
have minimum three windshield bars in front of driver. Lexan or aluminum cowl
panel in front of driver can be no wider than cockpit and no farther back than
steering wheel. Minimum 0.125 inch aluminum, or 0.060 inch steel, complete floor
pan required. Aluminum high-back seat only and must be bolted in, using minimum
0.375 inch bolts, next to left side frame rail and ahead of rear tires. Bottom
of seat can be no lower than bottom of frame rail. Driver must be sealed off
from track, driveline, engine, fuel cell, cannisters and pumps. Oil coolers must
not protrude above interior. Accumulators cannot be mounted between driver and
left-side door bars. No driver-adjustable devices allowed while car is in
competition except brake adjuster. No mirrors of any kind.
FRONT SUSPENSION: All
components must be steel, unaltered OEM, in OEM location, and replaceable by OEM
parts. Exceptions are: tube-type upper A-frames with or without aluminum or
steel cross shaft, and mounts can be moved; stamped steel OEM replacement lower
A-frames; rubber, nylon or steel lower A-frame bushings, no offset or bearing
type; welded or bolted shock mount on lower A-frame; OEM or OEM replacement
rebuildable ball joints allowed. Lower A-frames must be right and left, and of
same design. Lower A-frame mounts and bolt holes on frame must be in within OEM
specifications. Sway bar must be unaltered OEM. No suspension stops of any kind
rack and pinion. All components must be steel, unaltered OEM, in OEM location.
Exceptions are: outer tie rod end and adjustment sleeve may be replaced by a
minimum 0.625 inch steel rod end and steel tube; spindles can be ground for
brake caliper clearance only; unaltered, OEM or OEM replacement Pinto spindles
with ‘IMCA’ raised cast; bolt on spindle savers allowed; steel steering
shafts and knuckles only; driver compartment steering may be modified, must be
kept on left side. Spindles must be right and left, and of same design. Quick
release required - steering quickener and steering wheel may be aluminum. Idler
arm, pitman arm, and center link must match frame.
steel, nonadjustable, unaltered shock per wheel only. One
shock mount allowed, must be welded.
No shocks allowed on screw jacks. No external or internal bumpers or stops. No
bulb-type, threaded body,
coil over, air, or remote reservoir shocks. Maximum
2.125 inch O.D. shock body.
No Schrader valves or bladder type valve allowed. Front
half may be shielded.
One or all shocks may be claimed per event for $50 each, counting as one claim
on card, following shock claim procedures (Refer to www.imca.com).
steel coil or multi-leaf (rear) spring per wheel only. Minimum 4.5 inches O.D., maximum
13 inch free height,
non-progressive coils only. No torsion bars, air bags, inner liners or
spring rubbers allowed.
REAR SUSPENSION: All
components must be steel. No covers allowed. All mounts and brackets must be
welded or bolted solid. Coil springs must remain vertical and over center line
of rear-end housing. No coil-over eliminators allowed. No chains, cables or
tethers. Rear shocks cannot be mounted on control arms. All rear control arms
and panhard bars must be straight. Must utilize one of the following designs:
three link design requirements: Must use 16 inch minimum, 24 inch maximum lower
control arms. Must use one upper control arm, solid tube only, located at top
center of rear end housing and remain centered (one inch tolerance) on housing
over drive shaft. Must use minimum 23 inch panhard bar located behind rear end
housing. Lower spring perch must be welded to rear-end housing. Bottom
of rear spring must remain within 0.75 of the axle tube.
Must use steel upper weight jack. No
floating or bearing rear spring perches/cups allowed, top or bottom.
spring design requirements: Must use steel multi-leaf springs with no additional
suspension components besides one shock per wheel. Adjustable aluminum lowering
stock design requirements: Rear crossmember, control arm mounts and bolt holes
on frame must be in stock location. All components must be unaltered, approved
OEM, and match frame. Control arms cannot be altered in any way. Steel, rubber
or nylon control arm bushings only. Springs must remain in stock location. Lower
spring perch must be welded to rear-end housing. Must use steel upper weight
REAR END: Any
steel approved OEM passenger car or truck non-cambered rear end (housing and
carrier) allowed. Safety hubs (floater) allowed. All components must be steel,
except lowering blocks, axle and
and drive flange. One inch inspection hole in housing required. Mini-spools
only. Solid steel axles only. No quick change devices. One piece drive flange
only. No torque dividing mini spools or differentials. Ring gear, center section
and yoke cannot be lightened.
diagram) Steel bumpers must be on front and rear and welded, or securely mounted
with minimum .375 inch bolts. Rear bumper must be capped, constructed of solid
square, or minimum 1.25 inch O.D. tubing with 0.095 wall thickness, (similar to
diagram), maximum six inches beyond rear deck, no wider than five inches outside
of rear frame rails. If wider than five inches outside rear frame rails, must be
bent forward 90 degrees, or constructed in a loop design. Must have at least one
upright, minimum 1.25 inch with 0.065 wall thickness, from bumper to fuel cell
guard. Two-bar front bumper must be minimum 1.25 inch O.D. tubing with minimum
0.065 wall thickness (maximum 0.095 inch) mounted frame-end to frame-end, no
wider than width of material outside frame horns and with bottom loop parallel
to ground. Top bar must be directly above bottom bar, minimum 6.5 inches apart,
measured center to center.
use unaltered Hoosier Race tire, G60-15 with IMCA stamped on sidewall. No
chemical softening, conditioning, or grooving of tires (Refer to www.imca.com
for automatic penalties). Tires may be ground or siped within confines of tread
(not past factory straight line). No re-caps. All wheels must be three or four
inch backspace and display white ‘IMCA approved’ decal and wheel
manufacturer decal. No wheel adapters, spacers or bleeder valves. May use IMCA
approved bead lock, on right rear only. External, steel bead lock only and it
cannot make wheel any narrower than eight inches and no wider than 8.75 inches.
Must use only steel bolts. Foam type or plastic outer mud cover allowed on right
side wheels. Inner mud cover allowed on left rear only. Must use minimum one
inch O.D. steel lug nuts.
be steel approved OEM, operative four wheel, drum or disc. Must maintain minimum
OEM dimensions for hubs/rotors and calipers, cannot be lightened. No oil bath
front hubs. Bolt pattern may be changed. Larger studs allowed. Rear rotors may
be aftermarket 0.81 inch thickness (new). Vented solid
only, no scalloped or ceramic coated rotors. No brake shut-off or pressure
sensitive devices. One front to rear proportioning device allowed. Brake lines
must be visible. Rear caliper brackets must be welded or bolted solid to
tube headers only. All primary header tubes must enter directly into one
collector, at same point, at end of header. Collector length maximum nine
inches. Turn down (maximum 10 inches) allowed. Non-stepped headers only. No heat
wrap, or exotic coatings on headers. Schoenfeld mufflers, stamped IMCA 609, IMCA
or IMCA 935 must be used if track has
noise reduction rule of 98 dB or more (exception is California). Extreme Muffler
part # 1014-3030, or part # 1114-3535, are highly recommended for tracks that
require noise reduction of 97 dB or less. All exhaust must go through mufflers,
two per car, one per header. No exhaust sensors, merge collectors, cross-overs,
extensions, inserts, cones
FUEL SYSTEM: Racing
fuel cell required, maximum 32 gallon capacity (Recommended :12 gallon),
must be in minimum 20 gauge steel container. Must be securely mounted behind
rear axle, between rear tires, minimum four inches ahead of bumper, minimum 10
inches above ground. Must mount with minimum two solid steel straps around
entire cell, two inches wide and 0.125 inch thick. All cell mounts must be
steel, securely welded to frame/cage. Protective tubing must cover rear and
extend past both sides of cell. No part of cell shall be lower than protective
tubing. Fuel cell vents, including cap vent, must have check valves. If fuel
cell does not have aircraft style positive seal filler neck/cap system - a
flapper, spring or ball type filler rollover valve is required. Pick-up must be
on top or right side of cell. One fuel filter allowed. No cool cans. Air cleaner
top/stud cannot direct air into carburetor. No top flow air cleaner housings or
cold air boxes. Mechanical OEM type push rod fuel pumps only. Maximum 0.100 inch
thick carburetor gaskets on all engines. CLAIM
use IMCA approved naturally aspirated, unaltered 500 c.f.m. Holley - part no.
0-4412, may be modified to Holley HP Dorton part no. 0-80583-1 specs only. Float
bowl must face forward. Any adapter, maximum one inch thick. No throttle bore
adjustable carburetor spacers. GM
CRATE ENGINE: may
use any Holley 4-barrel carburetor, all components (float bowls and main body)
must be Holley manufactured. Metering blocks and base plate may be billet
aluminum non-Holley. No aerosol-style carburetors allowed. May use Speedway
Motors part #545-64940 or Moroso part #64940 carburetor spacer on crate. All
carburetors, may be exchanged, style for style only, following same procedure as
engine claim. Driver claiming carburetor may not claim engine or shocks on same
only. Racing fuel allowed. No E85. Recommended: pump grade. No
performance enhancing or scented additives. Fuel must pass both dielectric meter
and chemical tests. Fuel sample may be taken from any car at any time (Refer to
www.imca.com for automatic penalties).
weight limit of 2,500 pounds, no tolerance, after race with driver in car. No
weights and/or loose objects in driver compartment, above interior deck or
outside body. Weights must be securely mounted to frame or roll cage and painted
white with car number on it. Must be attached with at least two 0.5 inch bolts.
No titanium, magnesium, or carbon fiber products. Exceptions are: carbon fiber
rock guard and hood scoop. Solid steel fasteners only.
12 volt battery only, must be securely mounted between frame rails, and positive
terminal must be covered. Car must have capability of starting without being
pushed or pulled. Car must leave initial staging area on demand, unaided, or go
to rear of that race. Starter must bolt on block in OEM location and directly
unapproved cameras, transmitting or listening devices (exception is one-way
RACEceiver radio by officials), timing retard controls, or digital gauges
(including tach). No electronic monitoring computer devices capable of storing
or transmitting information except memory recall analog tach. 12 volt ignition
system and OEM HEI distributor only. Ford/Chrysler may use HEI distributor. No
billet distributors or crank triggers. Ignition rotor, cap, coil and module must
remain OEM appearing. Crate engine MUST use MSD #8728 rev-control and 6,200 rpm
chip. Claim engine MAY use MSD #8728 rev-control with any rpm chip. No
unapproved or additional ignition accessories allowed. All components must be
out of reach of driver, but with rev-control easily accessible facing up or out
for inspection. All wiring must be visible for inspection. Only gauges allowed
are analog oil pressure, fuel pressure, brake bias, water temperature and tach.
OEM type alternator with internal regulator allowed. No electronic traction
control devices (Refer to www.imca.com for automatic penalties).
TRANSMISSION/DRIVE SHAFT: All
forward and reverse gears must be operational, plus a neutral position. With
engine running and car in still position, driver must be able to engage car in
gear and move forward, then backward. Only OEM production transmissions allowed.
No ‘in and out’ boxes or quick change devices allowed. Functioning shift
levers must be in OEM location. One steel or aluminum OEM style/size flywheel or
steel OEM style/size flexplate allowed, must be bolted directly to end of
be unaltered, two or three speed, OEM production case with a functioning OEM
appearing pump. Aluminum OEM bellhousing may be replaced with aftermarket
explosion-proof aluminum bellhousing. Original OEM bellhousing must have
approved scattershield constructed of minimum 0.125 inch by three inch steel,
270 degrees around flexplate. Only external lines allowed are for transmission
cooler. Splined drive flange coupler or torque converter (10 inch minimum) only.
be unaltered, three or four speed, OEM production case and have a working 7.25
inch minimum diameter, steel and/or aluminum, single or multi-disc clutch and
pressure plate bolted directly to flywheel/flexplate. These components must
rotate, consistent with engine rpm, while car is in any gear. Must use
explosion-proof steel bellhousing with one hole for throw out bearing lever or
hose, must be 270 degrees around top of clutch and flywheel/flexplate area.
Hydraulic clutch pedal allowed with manual transmission only.
slip-yokes only. Minimum two inch diameter, white, steel drive shaft. 360-degree
drive shaft loop required and must be constructed of at least 0.25 inch by two
inch steel, or one inch tubing, mounted six inches back from front U-joint.
ENGINE COMPARTMENT: Rear
of engine (bellhousing flange) must be mounted at least 72 inches forward from
centerline of rear axle. Engine offset must be kept within two inches of
centerline of front crossmember with engine level. Minimum 11 inch engine height
from ground to center of crankshaft. V-belt aluminum or steel pulleys only.
Copper/brass or aluminum radiator only and must be mounted in front of engine.
No vacuum pumps, pan evac systems, oil coolers or remote oil filters.
ENGINE OPTIONS AND SPECIFICATIONS: All
cars utilizing a GM602 crate engine must clearly display on both front roof
posts the word CRATE. Must be contrasting in color from body, minimum two inches
tall. Markers not acceptable.
CRATE ENGINE: Must
use unaltered sealed GM #88958602 or #19258602 crate engine. Upon inspection,
any different, altered or missing GM seal bolts will result in disqualification,
loss of all IMCA points for the season, $1,000 fine and a one year suspension
from all divisions with crate option. GM seal bolt exception is IMCA approved
and issued Cable-Lok rebuild system, and oil pan may be replaced by IMCA
certified repair center with Kevko pan #1090NRHw/ISP and Kevko pick-up
#1003-3/4. $250 fine for any crate engine not using required spacer,
distributor, pushrods, valve springs or rocker arms. $250
fine for utilizing altered rev-limiter components.
Any driver using crate engine cannot claim engine or have engine claimed. During
same season, no driver is allowed to claim an engine after competing with a
crate. If a driver switches to a crate after claiming an engine, the crate
engine is then claimable.
CLAIM ENGINE: All
engines must be able to be used in conventional passenger car without
alterations. External engine casting and threaded holes cannot be altered.
steel passenger vehicle production block only. No GM Bowtie, Ford SVO or
Chrysler W components allowed. GM approved block numbers are: 10105123,
3892657, 3914660, 3914678, 3932388, 3932386, 3956618, 3970000, 3970006, 3970010,
3970014, 10066033, 10066036, 10243880, 14010207, 14010209, 14010287, 14016376,
14016379, 10054727, 14088528, 14088548, 14088552, 14093638, 14101148. Stroke
must match block. No 400 or larger cubic inch parts allowed. Maximum 361 cubic
inches (GM); 363 (Ford); 370 (Chrysler). Violation of cubic inch limit must be
verified by removal of head and will result in disqualification, loss of all
IMCA points for the season, $1,000 fine and a 30-day suspension. Maximum
compression ratio is 9.0 to 1, no tolerance. Compression ratio checked using
Whistler and cubic inches checked using pump, OR by visual inspection of part
and/or casting numbers, pistons, etc. (track option which method is used). Flat
top or dished pistons only, no gas-ported pistons. OEM or OEM appearing
replacement steel crankshaft only -
cannot be lightened. No aerowing, bullnose, knife edge, undercut or drilling of
second or third rod throws. OEM or OEM appearing
replacement steel rods only – GM 5.7
inch, 6-inch or GM Vortec rod part number 10108688 allowed.
Cap screw allowed. Conventional flat tappet cam and lifters only, cannot alter
lifter bores. OEM firing order cannot be changed (GM: 1-8-4-3-6-5-7-2). May use
oil restrictors. ‘Wet’ sump oiling system only. Steel oil pans only. Racing
oil pans allowed. Mandatory one inch inspection hole in all pans – no
obstructions to crank and rods. Accumulator allowed.
only. Must be unaltered approved OEM and minimum 76 cc combustion chamber (GM).
Only GM OEM approved head numbers are: 14079267, 3986336, 3986339, 3986339X,
3986388, 3932441, 376445, 3928454, 3932454, 3876487, 3973487, 3973487X, 3973493,
3951598, 468642, 330862, 333882, 3998920, 3998991, 3998993, 3998997, 3970126.
Maximum size valves on these heads are 2.02 inch intake and 1.60 inch exhaust. May
use Engine Quest (EQ) Stock Replacement (SR) cylinder head, GM part number
CH350I, Chrysler part number CH318B; head must remain as produced, seat angles
and valve sizes can not be changed: three angle valve job only (absolutely no
casting removal in valve pocket of EQ head, for any reason); Ford - no after
market or SVO heads; Chrysler - no after market or W-2 heads,
360 cubic inch heads only. No porting, polishing or unapproved alterations
allowed to any cylinder head or intake, disqualification and $250 fine if
illegal. Guide plates, screw-in shouldered studs (GM 0.375-inch max) and
polylocks allowed. No stud girdles. Steel roller tip rocker arms allowed. GM -
1.250 inch (±
maximum O.D. valve springs, no beehive valve springs allowed.
approved OEM cast iron low rise, two- or four-barrel. Only unaltered (no porting
or polishing) aftermarket aluminum intakes allowed are: Weiand GM #7547,
#7547-1; Ford #7515, #8023 or #7516; Chrysler #7545, #8022; Edelbrock GM #2701;
Ford #7121, #7181, #7183; Chrysler #2915. Cooling lines allowed on aluminum
intakes. Disqualification, loss of points, purse and $250 fine if any
alterations are found to heads/intake. Unaltered OEM type harmonic balancer
only. OEM type steel or aluminum water pumps only.
ENGINE CLAIMING RULES: Refer
to www.imca.com for claim eligibility
$550 cash claim on engine, $25 goes to wrecker for pulling engine and $25 goes
Claim does not include - 1. flywheel, 2. clutch, 3. pressure plate, 4.
bellhousing, 5. breathers, 6. carburetor, 7. starter, 8. motor mounts, 9.
oil/temp. sending units, 10. fan and pulleys, 11. clutch ball, 12. clutch arm,
13. throw out bearing, 14. dip stick, 15. water pump, 16. fuel pump, rod and
plate, 17. distributor, 18. plug wires, 19. water outlet and restrictor, 20.
During engine claim, block and head numbers should be verified, heads, intake,
connecting rods and crankshaft should be visually inspected and one spark plug
must be removed to check flat top or dish pistons prior to transfer of engine to
claiming driver. If, at this time, engine is found illegal, claimed driver is
disqualified and suspended from all IMCA sanctioned events until such time as a
$250 fine is paid, for first offense. Claimer then has option to accept or
decline engine - if declined, driver is not charged with claim. Second offense
penalties will be $500 fine and/or suspension.
POINT STRUCTURE /PROCEDURES: Refer
(Except in rare instances) Decisions of officials are final and binding without
exception. In some cases, track safety rules may take precedence over IMCA rules
- any discrepancy between IMCA and track rules should be brought to the
attention of IMCA. Any rule changes or clarifications during the course of the
year will be amended at www.imca.com as well as published in Inside IMCA, the
official newsletter of IMCA, and will be considered as an official part of these
more information, call Tom Gutowski at 402-350-6120, or IMCA at 319-472-2201.
2013 IMCA. All rights reserved.
part of this publication may be reproduced, stored, or transmitted in any form,
without prior written permission.
"Limited" Sport Modified RULES
2013 will be a "transitional" year for this set of rules, all cars will be required to become IMCA Northern SportMods by 2014. All drivers must purchase a IMCA Northern SportMod license.
rules and/or regulations set forth herein are designed to provide for the
orderly conduct of racing events and to establish minimum acceptable
requirements for such events. The Sport Mod Rules shall govern the condition of
all Sport Mod events. By participating in these events, all participants are
deemed to have complied with these rules. They are intended as a guide for the
conduct of the sport and are in no way a guarantee.
Each car must be equipped with a muffler capable of keeping the noise level at or below 95dB at 100 feet from the racing surface. Exhaust systems must be leak free and remain intact for the duration of the race.
Must run gas.
One Holley model # 4412 2-barrel carburetor.
Must run stock non-performance production manifold.
Ignition systems must be OEM stock (no spark boxes).
No light-weight starters. Can use part #ULT-03-1399 (O'Reilly Auto Part)
168 tooth stock steel fly-wheel on Chevrolet (GM) – other makes comparable
Standard steel 3-speed transmission only.
Steel pressure plate and single disc clutch.
Gear ratio no deeper than a .600 final.
Body sail-panels 36" max - 24" min.
Hoosier G-60 modified tires.
Spoiler must be 5" maximum height with 3 braces (follow IMCA Northern
SportMod rules on spoiler requirement only)
13. WEIGHT: Minimum weight limit of 2,500 pounds, no tolerance, after race with driver in car. No weights and/or loose objects in driver compartment, above interior deck or outside body. Weights must be securely mounted to frame or roll cage and painted white with car number on it. Must be attached with at least two 0.5 inch bolts. Solid steel fasteners only.
MIX THE RULES FROM "LIMITED" SPORT MOD TO IMCA NORTHERN SPORT MOD
PROTEST – Refer to EPCS “General Rules M – Protest” (in accordance with EPCS & IMCA).
REMEMBER - IF THE RULES DOESN'T SAY YOU CAN, ASSUME YOU CAN'T !!!
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