PERRIS
AUTO SPEEDWAY
2010
PASSCAR SPORT MODS RULES
Race Track – Quarter Mile
1. SAFETY EQUIPMENT: Rules apply at all times car is on track. Roll bar padding required in
driver compartment (Fire retardant
recommended). SFI-approved full fire suit required. Gloves
and shoes required. Recommended:
Fire retardant head sock and underwear; head and neck restraints;
collapsible steering shaft. Driver-side window net required,
minimum 16 inch by 20 inch ribbon or mesh style, and must be mounted so
latch is at top front of window. Minimum three inch wide SFI-approved
five point safety belt assembly required. No older than 3 years.
Must be mounted securely to roll cage. Kill switch required within
easy reach of driver and must be clearly marked ‘OFF’ and ‘ON’.
Safety
helmet must meet Snell 95 testing standards, bear proper identification,
and have no signs of previous damage. On board fire extinguisher (2lb)
MANDATORY with quick release mechanism, within drivers reach while
strapped in. All cars will be required to have in their pits a minimum
of one 5 pound, Halon or dry chemical fire extinguisher. This is to be
visible to tech officials, and all crewmembers must be aware of its
location, and knowledgeable in the use of the fire extinguisher. Sharing
a fire extinguisher between two pit areas is permissible as long as it
is Accessible to both, and both pits are aware of its location. Car and
driver will be required to make safety rule violations comply, PRIOR to
racing any event. For all safety equipment it will be the sole
responsibility of the driver, not Perris Auto Speedway, their agents/
officials or corporate officers to ensure that his/her safety equipment
is correctly installed, maintained, and properly used. Please refer to
manufacturer installation and usage guidelines and adhere to them.
2.
FRAME: 1964 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; front cross member 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.
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. No part of frame can be lower than four inches from ground
except front cross member.
3. 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, low
carbon or mild steel recommended. 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.
4.
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.
5. BODY: (See Diagram) No composite body panels allowed except roof rock guard hood scoop and spoiler. Body must be same width, front to rear, and parallel to OEM frame. Minimum ground clearance is four inches. Engine compartment must remain open (no side panels). Hood must be enclosed at rear. No panel in front of right door to engine compartment. No inner panels. No car covers. Must have front windshield and rear window 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 of window, whether roof or roll cage, and highest point at bottom of window, whether interior or body. May use Lexan in sail panels. May use full windshield. Must be fiberglass full size roof, rounded down in all directions. Maximum 1.5 inch rolled down rock guard allowed on roof front. Rear spoilers ok, No wider than the body, max height 8 inches. Maximum four inch plastic skirting allowed on bottom of doors and quarters. No reflective doors or quarter panels. Outside of tires must be widest part of car.
6. 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, canisters 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.
7.
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. Lower A-frames must be right and left, and of same
design. Lower A-frame mounts and bolt holes on frame must be in OEM
location. OEM ball joints only. Sway bar must be unaltered OEM.
8. STEERING: No 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 replacement Pinto spindles with 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.
9.
SHOCKS: One steel, nonadjustable,
unaltered shock per wheel. No bumpers or stops. No threaded body, front
coil-over, air, or remote reservoir shocks. No Schrader or bladder
type valve allowed. Front half may be shielded.
10. SPRINGS: One steel, non-progressive coil spring per wheel only. Steel multi leaf
spring allowed. Any coil spring must be at least 4.5 inches O.D. No
torsion bars, air bags or inner liners.
11.
REAR SUSPENSION: All components must be steel. All mounts and brackets must be welded or
bolted solid. Coil springs must remain vertical. Coil-over eliminators
or steel spring sliders allowed. Nothing may be mounted on lower control
arms. Must utilize one of the following designs:
Aftermarket three link design requirements: Must use minimum 16 inch
lower control arms equal length left to right. Must use one upper
control arm (pull bar) with biscuit only located at top center of rear
end housing and remain centered (1-inch tolerance) on housing
over drive shaft. Must use minimum 23 inch pan hard bar located behind
rear end housing.
(B) Multi-leaf
spring design requirements: Must use steel multi-leaf springs with no
additional suspension components besides one shock per wheel and pull
bar with biscuit located at top center of rear end housing and remain centered
(1-inch tolerance) on housing over drive shaft. Adjustable aluminum
lowering blocks allowed.
(C) OEM
stock design requirements: Rear cross member, 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 jack.
12.
REAR END: Any steel approved OEM passenger car or truck rear end (housing and
carrier) allowed. Safety hubs (floater) allowed. All components must be
steel, except lowering blocks, axle cap, and drive flange. Inspection
hole required in housing. Full steel spool, steel mini spool or welded
rear ends only. Steel axles only. No quick change devices or cambered
rear ends. One piece drive flange only. No torque dividing
differentials. No scalloped ring gears.
13.
BUMPERS: (See Diagram) Steel bumpers must be on front and rear at all times and
welded, or mounted with minimum .375 inch bolts. Rear bumper must be
constructed of solid square, or minimum 1.25 inch O.D. tubing with 0.095
wall thickness, and – similar to diagram - no wider than five inches
outside of rear frame rails. If wider than five inches outside rear
frame rails, must be capped and 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.
14. TIRES/WHEELS: Must use unaltered Hoosier Race tire,
G60-15 or American Racer. No softening, conditioning, siping or grooving
of tires. No recaps. Aluminum or steel spacers only. Max wheel size 8
inches, steel only. Bead lock, on right rear only. External, steel bead
lock only and it cannot make wheel any narrower than 8 inches and no
wider than 8.75 inches. Must use only steel bolts.
15.
BRAKES: Must be steel approved OEM, operative four wheels, drum or disc. Must
maintain minimum OEM dimensions for hubs/rotors and calipers cannot be
lightened. Bolt pattern may be changed. Larger studs allowed. Rear
rotors may be aftermarket 0.81 inch thickness (new). No floating rear
caliper mounts. Vented rotors 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.
16.
EXHAUST: Round tube headers only. All primary header tubes must enter
directly into one collector at same point at end of header. All
exhaust must go through mufflers, two per car, and one per header. No
merge collectors. No exhaust sensors.
17.
FUEL SYSTEM: Mechanical push rod type fuel pump mounted in stock location only.
Racing fuel cell required, maximum 32 gallon capacity must be in minimum
20 gauge steel container. Cell must be securely mounted behind rear
axle, between rear tires, minimum of four inches ahead of bumper,
minimum of ten 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. Limit of one fuel filter. No cool cans. Air cleaner
top/stud cannot direct air into carburetor. No top flow air cleaner
housings. Holley #4412 carb only. May remove choke plate power valve and
change jetting only, must fit tech gauge.
18.
FUEL: Gasoline only. Racing fuel allowed. Pump grade recommended. 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.
19.
WEIGHT: Minimum weight limit of 2,550 pounds, no tolerance, after race with
driver in car. Weights must not be used in driver compartment or outside
body. All weights must be securely mounted with at least two 0.5 inch
bolts, painted white with car number on it. No titanium, magnesium,
stainless steel or carbon fiber components. Solid steel fasteners only.
20.
BATTERY/STARTER: One 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. Starters must be mounted in stock location.
21.
GAUGES/ELECTRONICS: No unapproved
cameras, transmitting or listening devices, timing retard controls, or
digital gauges (including tach). No electronic monitoring computer
devices capable of storing or transmitting information except analog
tach. No adjustable ignition control boxes. One 12 volt ignition box
allowed must be out of driver’s reach. No additional ignition
accessories allowed. Only change allowed to ignition box is one high-end
rev-limiter setting. This setting can be changed through one chip only,
or an internal setting inside box. No magnetos. No electronic traction
control devices.
22. 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 crankshaft. Automatic:
Must remain in OEM or OEM replacement 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 scatter shield constructed of minimum
0.125-inch by three-inch steel, 270 degrees around flexplate. Manual:
Must 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. Drive
Shaft: Minimum two inch diameter, white, steel drive
shaft. Steel slip-yokes only. 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.
23.
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 cross member with engine level. Minimum 11 inch engine height from
ground to center of crankshaft. Radiator must be mounted in front of
engine. Cooling system may be modified. Overflow tubes must be directed
to ground between frame rails.
24. ENGINE SPECIFICATIONS: Any American make engine
allowed. Steel heads, block and oil pan only. OEM passenger vehicle
production block only. No GM Bowtie, Ford SVO or Chrysler W blocks. Flat
tappet cam/lifters and stud-mounted rocker arms only. No stud girdles.
No mushroom lifters, cannot alter lifter bores. OEM firing order cannot
be changed. No crank triggers. All engines must be able to be used in
conventional passenger car without alterations. Engine mounts cannot be
removed or altered. Castings and fittings must not be changed. No
machine work on outside of engine. All belt driven accessories must be
on front of engine. ‘Wet’ sump oiling system only.
25. Note: All 2008 IMCA Modified body
rules apply with the exception of the rear spoiler.
26. INSPECTIONS
a)
All cars are subject to inspection by Perris Auto Speedway at any
time and in any manner determined by track officials. All decisions
regarding the timing and manner of inspections, as well as which cars
will be inspected is final.
b)
A competitor must take whatever steps requested by a track
official, including tear down of a car, to facilitate inspection of the
car at any time.
c)
Only those persons approved by track officials may be admitted
into the inspection area.
d)
Perris Auto Speedway has the right to confiscate any part and/or
equipment, which fail to meet applicable Perris Auto Speedway
specifications during an event.
e)
Track officials mandate inspection after the event; if a car that
has competed in the event is taken from the tech area without permission
of a track official, the car and driver will be disqualified.
f)
Any member who fails to tear down a car for inspection when
requested to do so by the track officials, a fine and/or loss of
championship points and or definite suspension from Perris Auto Speedway
will result.
26. DISCLAIMER: The
rules and/or regulations set forth herein are designed for the orderly
conduct of racing events and to establish minimum acceptable
requirements for such events. The
rules shall govern all entrants. NO EXPRESS OR IMPLIED WARRANTY
OF SAFETY SHALL RESULT FROM PUBLICATION 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 deviations from any of the specifications,
herein, or impose any further restriction, 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 deviations of these rules is left to the
discretion of the officials. Their
discretion is final. If you have any questions please call (951)
940-0134.
December 11, 2009
Perris Auto Speedway
Perris, California
*All Participants
must be a member of the Perris Auto Speedway Passcar Association to
participate in the event and to accumulate points.
- There
will be a $25.00 entry fee per car per race. Money will be collected
at pill pick.
2010
SPORT MODIFIED OPTION A
2010
SPORT MODIFIED OPTION B
