Paris Motor Speedway reserves the right to inspect any car at any time. No car will be considered as having been
approved for safety and/or deemed legal by reason of having passed through inspection unobserved.
approved for safety and/or deemed legal by reason of having passed through inspection unobserved.
| Copyright © 2008 Paris Motor Speedway. All rights reserved. No part of this publication may be reproduced, stored, or transmitted in any form, without prior written permission. |
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HOBBY STOCK RULES
(Paris Motor Speedway (PMS), reserves the right to inspect any car at any time. No car will be
considered as having been approved for safety and/or deemed legal by reason of having passed through
inspection, unobserved.)
Revisions/clarifications underlined,
IF THESE RULES DON'T SAY "YOU CAN", THEN "YOU CAN'T"!
1. SAFETY EQUIPMENT: Rules apply at all times car is on track. Snell-rated SA2000 Sa2005 or SFI 31.1/2005 helmet required. Roll
bar padding required in driver compartment (fire retardant recommended). SFI approved full fire suit required.Fire retardant neck
brace, 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" by 20" ribbon or mesh style and must be mounted so latch is at top front of window. Minimum 3" wide SFI-approved five
point safety belt assembly required (y-type shoulder harness not allowed), must be mounted securely to roll cage, recommended to be
no more than one year old. Kill switch required within easy reach of driver and must be clearly marked "OFF" and "ON".
2. FRAME: Any American OEM full body rear wheel drive passenger car, 1964 or newer, full frame or unibody. Engine must match
body. Minimum 107.5" wheelbase, maximum 1" difference from side to side. Rear of frame behind rear tires, no further forward than 1"
behind factory seam, may be replaced in OEM location with 2" by 3" steel tubing with 0.095"wall thickness, same length as material
removed.Factory seam must remain visible. Unibodies must tie rear frame to front frame. Frames may be "X" braced.
No Cameros , Firebirds or Mustangs.
Exceptions are: 1980 or newer Ford two door unibody may be installed on 1978-1987 GM full frame OR Ford full frame (shortened to
minimum 107.5 inch wheelbase). Chrysler engine may be put in 1978-1987 GM full frame
3. ROLL CAGE: Main cage must consist of continuous hoops, minimum 1.75" O.D. tubing, with wall thickness of at least 0.095", low
carbon or mild steel recommended. Four-post roll cage required, front down bars and rear hoop must be welded to OEM frame. Driver’
s head must not protrude outside cage with helmet on. Rear hoop must have "X" brace, consisting of one full horizontal and one full
diagonal bar, minimum 1.25" O.D.. with 0.083" wall thickness. Front down bars must be tied together, passenger side front down bars
must be maximum 11" in from top of door. Must be minimum 40" between front and rear down bars at top of door panel. Maximum 41"
from top center of windshield to front edge of rear hoop; maximum 13" to front edge of top halo. Top halo must be minimum 40"
across, outside to outside. Rear hoop may maximum 12" in from bottom of operator window. Minimum one cross bar in top halo. May
have maximum two horizontal bars, (in addition to bar tying front frame horns together) for radiator protection; must be behind bumper ,
within confines of body, no wider than OEM frame horns. Rear kickers (down bars) and engine hoop required, and must be minimum
1.25" O.D. tubing with 0.083" wall thickness. Fuel cell protection required, must be mounted frame rail to frame rail, no higher than fuel
cell, inside trunk area with maximum 1.75" O.D. tubing. All bars must be inside body.
4. DOOR BARS: : All door bars and uprights must be minimum 1.75" O.D. with 0.095" wall thickness. Minimum three door bars, both
sides, parallel to ground, and perpendicular to driver. Minimum four uprights tied from frame to top door bar on driver side,and
minimum three uprights on passenger side. Steel door plates, 18 gauge or 0.049" minimum thickness, must be securely welded to
outside of door bars on driver’s side. Plate must cover area from top door bar to rocker panel and from rear down post to 5" in front of
seat. Must be visible for inspection.
5. BODY: All bodies must be unaltered OEM in OEM location and match frame. Front body mounts must be visible. Sunroofs and t-
tops must be enclosed. Aftermarket plastic nose pieces allowed, recommended to match body. No spoilers, hood scoops. Unaltered
OEM STEEL hood and trunk only, no gutting of trunk. Hood and trunk must be securely fastened and back of hood must be sealed off
from driver compartment with metal. Hood must be separate from fenders. Front inner wheel wells may be removed, rear wheels wells
may be removed to middle seam. Trunk floor directly over rear end housing must be removed. No overlapping or shortening of body
panels. All glass must be removed, all windows in body must remain open; maximum 7" metal sun visor allowed across top of
windshield opening. All doors must be securely fastened. Fenders and quarter panels may be trimmed for tire clearance, ONLY. No
reflective body panels. Engine must match body.
6. DRIVER COMPARTMENT: Minimum three windshield bars in front of driver. Aluminum high-back seat only and must be bolted in,
using minimum 0.375" bolts. Driver seat may be no further back than rear edge of B- pillar. Driver must be sealed off from track,
driveline, engine and fuel cell. Dash not to extend more than 24" back from center of lower windshield opening. Dash must be flat,, rear
can be no higher than front, except for cowl in front of driver. No other interior tin or covers. Inside rear quarter panels, below window
level, may be cut out. Doors may be gutted. No cutting out of firewalls, roof, floor,kick panels, rocker panels, except for roll cage
clearance. All holes in firewalls and floor must be covered with metal. Rear firewall and speaker deck must be metal and be of OEM
design for that make and model. No mirrors of any kind.
7. FRONT SUSPENSION: All components must be steel altered OEM, in OEM location and match frame. No aftermarket ball joints No
weight jacks or adjustable spring spacers, chains or cables. OEM rubber A-frame bushings only. Exceptions are:for 1978-1987 GM
mid-sized metric frame, OEM upper A-frame may be replaced using aftermarket upper A-frame, must display "IMCA approved"decal
on top of rear tube of A-frame; bolt on spindle savers allowed. Upper A-frame mount must remain OEM and cannot be moved.
8. STEERING: All components must be steel unaltered OEM, in OEM location and match frame. OEM steering column may be
replaced with steel steering shafts, (collapsible steering shaft recommended). Steel knuckles only. Quick steering is allowed. Steering
wheel and quick release (required) may be aluminum.
9. SHOCKS: One unaltered steel, non-adjustable, OEM-mount shock, in OEM location, per wheel. No coil over shocks, air shocks,
remote reservoir shocks. No Schrader or bladder type valve allowed. No coil over eliminators. Rear OEM shock location is 4.5" from
bottom of housing to center of bolt hole, and centered on control arm bracket.
10. SPRINGS: One steel spring per wheel only in OEM location. All coil springs must be minimum 4.5" O.D.and non-progressive.
11. REAR SUSPENSION: All components and mounts must be steel, unaltered, OEM, in OEM location and match frame. OEM rubber
control arm bushing only. Center of rear lower control arm bolt hole must be 2.25 to 2.5 inches from bottom of housing. No independent
rear suspension. No sway bars,panhard bars, adjustable spring spacers ,chains or cables.Spring rubbers are allowed.
12. REAR-END: No Floater rear ends. OEM, or OEM replacement solid steel axles only .Nine inch ford rear end allowed, but must be
mounted like OEM rear end (centered) for that make and model. One inch inspection hole in housing required. No lightened ring
gears. Must be welded spider gears, or mini spool. No torque dividing differentials.
13. BUMPERS & RUB RAILS: Bumpers must be approved OEM must be in OEM location, capped to fender with steel, welded or
bolted. Maximum one inch wide by two inch tall steel or lexan rub rails allowed- bolted flush to body. Front and rear tow hooks
mandatory No sharp edges allowed on bumpers, rub rails or bolts. No bars past outside edge of body other than rub rails.
14. TIRES/WHEELS: Must use unaltered Hoosier race tires, G60-15 or Maximum 11" sectional tread width street type passenger car
tire. Must have D.O.T. number and tread design Tires must be inside body. No racing, snow, or all-terrain tires. NO HOOSIER TIRES
EXCEPT FOR G60-15 No softening/conditioning, siping/grinding or grooving of tires. Wheels must be a max. of 8" wide. May use
bead lock on right rear only.1´O.D.steel lug nuts required. No bleed valve.
15. BRAKES: Steel, operative four wheel, disc (front) and drum or disc (rear ) brakes, must match frame or rear end. Full OEM
backing plates, Aftermarket Master cylinders okay. Aftermarket brake pedal assemblies allowed, No brake shut off or bias adjuster
or gauges. Steel brake lines only, must be visible .Hubs / rotors , axle flanges and drums may be changed to different bolt pattern and
larger studs.
16. EXHAUST: Round tube header are allowed or OEM cast iron exhaust manifolds allowed.
17. FUEL SYSTEMS: Mechanical OEM type push rod fuel pumps only. Any car 112" wheelbase or more may run factory
UNALTERED OEM(4) four-barrel carburetor Any car less than 112" wheelbase can run a holley 4412 (500 cfm)with a maximum of a 1
1/4 adapter plate (2) two-barrel carburetor. Or a 2 barrel Rochester Unaltered OEM two barrel carburetor for that engine, except:
booster I.D. may be machined to 0.25 inch and venture I.D. machined 1.375 inch on Rochester carburetor. Must remove carburetor
choke plate. No carburetor spacers. One 0.25 inch (maximum) thickness gasket only.Air cleaner top / stud cannot direct air into
carburetor. No top flow air cleaner housings, cold air boxes or air cleaner duct work. Maximum 22 gallon racing fuel cell required, must
be in minimum 20 gauge steel container. Must be securely fasten in trunk above level of OEM trunk floor, behind rear tires, no further
than factory seam where rear frame rail can be replaced, with minimum two solid steel straps around entire cell, two inches wide and .
125 inch thick.. No fuel cells allowed over rear end housing. Metal firewall must be between driver and fuel cell. All cell mounts must be
steel,securely welded to frame / cage. No adjustable fuel cell mounts. 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 rollover valve is required. Fuel lines
through driver compartment must run through metal pipe or metal conduit. One fuel filter only, cannot be in driver’s compartment. No
cool cans.
18. FUEL: Gasoline only. Racing fuel allowed.No E85. No performance enhancing or scented additives. Fuel must pass both dielectric
meter and chemical test
19. WEIGHT: No weight, and / or loose objects in drivers compartment, or outside body, and must not be visible. Weight must be
securely mounted to frame or roll cage and painted weight with car # on it. Must be attached with at least two, 5" bolts. Car must weigh
at least 3100lbs.
20. BATTERY & STARTER: One 12 volt passenger car battery only, must be securely mounted between and above frame rails, and
positive terminal must be covered. Battery must be in marine type case if mounted in driver compartment. Starter must bolt in OEM
location. Car must have capability of starting with out being pushed or pulled. Car must leave initial staging area on demand, un aided
, or go to rear of that race.
21. GAUGES & ELECTRONICS: No unapproved camera, transmitting or listening devices. No timed retard control, or digital gauges
(including tach).No electronic monitoring computer devices capable of storing or transmitting information except analog tach. No
ignition control boxes. OEM ignition only. all ignition rotors, caps, coils and modules must remail OEM appearing. No alternators. No
electronic traction control devices.
22. TRANSMISSION/DRIVE SHAFT: All forward and reverse gears must be operational.
MANUAL: Must be unaltered OEM three or four speed, with minimum 10.5 inch steel / organic single disc-type clutch and steel
pressure plate assembly inside an explosion-proof steel bellhousing- minimum 270 degrees around top of clutch and flywheel area. No
lightweight bellhousing . No hydraulic clutch release bearing. Steel unaltered flywheel only- 16 pound minimum. AUTOMATIC: Must be
unaltered OEM, with unaltered OEM pump, original bellhousing andminimum 10 inch diameter torque converter containing a minmum
of three quarts of fluid. Torqe converter must have a minimum 0.125 inch plug. Must have approved scatter shield constructed of
minimum 0.125 by three inch steel, 270 degree around flex plate. Flexplate must be full, unaltered OEM, or OEM replacement. No
manual bump starts allowed.
23. DRIVE SHAFT: Steel drive shaft ( minimum 2.5 inch diameter) and slip – yokes only. Drive shafts must be painted white. 360
degree driveshaft loop required and must be constructed of minimum 0.25 inch by two inch solid steel, or one inch tubing, mounted six
inches back from front U-joint.
24 ENGINE COMPARTMENT: Engine must be in OEM location. Ford metric frames must have back of fuel pump in front of cross
member. Frame and cross member may not be altered for engine placement. Engine mount holes cannot be removed or altered on
block. Aftermarket steel engine mounts allowed. No mid-plate allowed. Engine must be OEM appearing, must be able to be used in
conventional passenger car without alteration. GM with GM, Ford , Chrysler with Chrysler. Minimum two-core radiator, must be
mounted in front or engine. Overflow tubes must be directed to ground. Steel or aluminum V-belt pulleys only.No electric fans.
25. 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. GM approved block numbers are: 3892657, 3914660,
3914678, 3932388, 3932386, 3956618, 3970000, 3970006, 3970010, 3970014, 10066033,10066036, 10243880, 14010207,
1401209,14010287, 14016376, 14016379, 10054727, 14088528, 14088548, 14088522, 14093638,14101148. Stroke must match
block. No 400 or larger cubic inch parts allowed. Maximum 361 cubic inches (GM) ; 363 cubic inches (Ford); 370 cubic inches
(Chrysler). 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 , such as part /casting numbers and flat top or dish pistons (track option which method
is used ). Flat top or dish pistons only. No gas ported pistons. Cylinder heads must be unaltered approved OEM and minimum
76cc combustion chamber. GM approved head numbers are; 14079267, 3986336, 3986339,3986339X, 3986388, 3932441,
376445, 3928454, 3932454, 3876487, 3973487, 3973487X, 3973493,3951598, 468642, 3300862, 333882,
3998920,3998991,3998993, 3998997, 3970126,; Ford-no after market or SVO heads; Chrysler- no after market or W-2 heads, 360
cubic inch heads only. No porting,polishing or alterations of any kind to heads or intake. Must use OEM cast iron two barrel intake ,No
high rise or marine intake manifolds. No roller cams, No mushroom lifters . Can not alter lifter bores. OEM style roller tip rocker arms
allowed. No beehive valve springs allowed.Guide plates and screws- in shouldered studs (0.375 Inch max) allowed. No stud girdles.
Poly locks allowed. Unaltered OEM type harmonic balancer only. OEM firing order cannot be changed. OEM type steel or aluminum
water pumps only.Wet sump oiling system only. Accumulator allowed, must be mounted under hood.
26. PROTEST RULE:
All protest's must be made in writing, by driver ONLY, BEFORE "A" main, with cash in hand. One item per protest.
***ENGINE PROTEST- $200 cash, $25 to track. If legal, protested car gets $175, If "illegal", protester gets $175 back.
***SUSPENSION -$100 cash, $25 to track. If legal, protested car gets $75, if "illegal", protester gets $75 back.
***ALL OTHERS-$75 CASH, $25 to track. If legal, protested car gets $50, if "illegal", protester gets $50 back.
(Paris Motor Speedway (PMS), reserves the right to inspect any car at any time. No car will be
considered as having been approved for safety and/or deemed legal by reason of having passed through
inspection, unobserved.)
Revisions/clarifications underlined,
IF THESE RULES DON'T SAY "YOU CAN", THEN "YOU CAN'T"!
1. SAFETY EQUIPMENT: Rules apply at all times car is on track. Snell-rated SA2000 Sa2005 or SFI 31.1/2005 helmet required. Roll
bar padding required in driver compartment (fire retardant recommended). SFI approved full fire suit required.Fire retardant neck
brace, 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" by 20" ribbon or mesh style and must be mounted so latch is at top front of window. Minimum 3" wide SFI-approved five
point safety belt assembly required (y-type shoulder harness not allowed), must be mounted securely to roll cage, recommended to be
no more than one year old. Kill switch required within easy reach of driver and must be clearly marked "OFF" and "ON".
2. FRAME: Any American OEM full body rear wheel drive passenger car, 1964 or newer, full frame or unibody. Engine must match
body. Minimum 107.5" wheelbase, maximum 1" difference from side to side. Rear of frame behind rear tires, no further forward than 1"
behind factory seam, may be replaced in OEM location with 2" by 3" steel tubing with 0.095"wall thickness, same length as material
removed.Factory seam must remain visible. Unibodies must tie rear frame to front frame. Frames may be "X" braced.
No Cameros , Firebirds or Mustangs.
Exceptions are: 1980 or newer Ford two door unibody may be installed on 1978-1987 GM full frame OR Ford full frame (shortened to
minimum 107.5 inch wheelbase). Chrysler engine may be put in 1978-1987 GM full frame
3. ROLL CAGE: Main cage must consist of continuous hoops, minimum 1.75" O.D. tubing, with wall thickness of at least 0.095", low
carbon or mild steel recommended. Four-post roll cage required, front down bars and rear hoop must be welded to OEM frame. Driver’
s head must not protrude outside cage with helmet on. Rear hoop must have "X" brace, consisting of one full horizontal and one full
diagonal bar, minimum 1.25" O.D.. with 0.083" wall thickness. Front down bars must be tied together, passenger side front down bars
must be maximum 11" in from top of door. Must be minimum 40" between front and rear down bars at top of door panel. Maximum 41"
from top center of windshield to front edge of rear hoop; maximum 13" to front edge of top halo. Top halo must be minimum 40"
across, outside to outside. Rear hoop may maximum 12" in from bottom of operator window. Minimum one cross bar in top halo. May
have maximum two horizontal bars, (in addition to bar tying front frame horns together) for radiator protection; must be behind bumper ,
within confines of body, no wider than OEM frame horns. Rear kickers (down bars) and engine hoop required, and must be minimum
1.25" O.D. tubing with 0.083" wall thickness. Fuel cell protection required, must be mounted frame rail to frame rail, no higher than fuel
cell, inside trunk area with maximum 1.75" O.D. tubing. All bars must be inside body.
4. DOOR BARS: : All door bars and uprights must be minimum 1.75" O.D. with 0.095" wall thickness. Minimum three door bars, both
sides, parallel to ground, and perpendicular to driver. Minimum four uprights tied from frame to top door bar on driver side,and
minimum three uprights on passenger side. Steel door plates, 18 gauge or 0.049" minimum thickness, must be securely welded to
outside of door bars on driver’s side. Plate must cover area from top door bar to rocker panel and from rear down post to 5" in front of
seat. Must be visible for inspection.
5. BODY: All bodies must be unaltered OEM in OEM location and match frame. Front body mounts must be visible. Sunroofs and t-
tops must be enclosed. Aftermarket plastic nose pieces allowed, recommended to match body. No spoilers, hood scoops. Unaltered
OEM STEEL hood and trunk only, no gutting of trunk. Hood and trunk must be securely fastened and back of hood must be sealed off
from driver compartment with metal. Hood must be separate from fenders. Front inner wheel wells may be removed, rear wheels wells
may be removed to middle seam. Trunk floor directly over rear end housing must be removed. No overlapping or shortening of body
panels. All glass must be removed, all windows in body must remain open; maximum 7" metal sun visor allowed across top of
windshield opening. All doors must be securely fastened. Fenders and quarter panels may be trimmed for tire clearance, ONLY. No
reflective body panels. Engine must match body.
6. DRIVER COMPARTMENT: Minimum three windshield bars in front of driver. Aluminum high-back seat only and must be bolted in,
using minimum 0.375" bolts. Driver seat may be no further back than rear edge of B- pillar. Driver must be sealed off from track,
driveline, engine and fuel cell. Dash not to extend more than 24" back from center of lower windshield opening. Dash must be flat,, rear
can be no higher than front, except for cowl in front of driver. No other interior tin or covers. Inside rear quarter panels, below window
level, may be cut out. Doors may be gutted. No cutting out of firewalls, roof, floor,kick panels, rocker panels, except for roll cage
clearance. All holes in firewalls and floor must be covered with metal. Rear firewall and speaker deck must be metal and be of OEM
design for that make and model. No mirrors of any kind.
7. FRONT SUSPENSION: All components must be steel altered OEM, in OEM location and match frame. No aftermarket ball joints No
weight jacks or adjustable spring spacers, chains or cables. OEM rubber A-frame bushings only. Exceptions are:for 1978-1987 GM
mid-sized metric frame, OEM upper A-frame may be replaced using aftermarket upper A-frame, must display "IMCA approved"decal
on top of rear tube of A-frame; bolt on spindle savers allowed. Upper A-frame mount must remain OEM and cannot be moved.
8. STEERING: All components must be steel unaltered OEM, in OEM location and match frame. OEM steering column may be
replaced with steel steering shafts, (collapsible steering shaft recommended). Steel knuckles only. Quick steering is allowed. Steering
wheel and quick release (required) may be aluminum.
9. SHOCKS: One unaltered steel, non-adjustable, OEM-mount shock, in OEM location, per wheel. No coil over shocks, air shocks,
remote reservoir shocks. No Schrader or bladder type valve allowed. No coil over eliminators. Rear OEM shock location is 4.5" from
bottom of housing to center of bolt hole, and centered on control arm bracket.
10. SPRINGS: One steel spring per wheel only in OEM location. All coil springs must be minimum 4.5" O.D.and non-progressive.
11. REAR SUSPENSION: All components and mounts must be steel, unaltered, OEM, in OEM location and match frame. OEM rubber
control arm bushing only. Center of rear lower control arm bolt hole must be 2.25 to 2.5 inches from bottom of housing. No independent
rear suspension. No sway bars,panhard bars, adjustable spring spacers ,chains or cables.Spring rubbers are allowed.
12. REAR-END: No Floater rear ends. OEM, or OEM replacement solid steel axles only .Nine inch ford rear end allowed, but must be
mounted like OEM rear end (centered) for that make and model. One inch inspection hole in housing required. No lightened ring
gears. Must be welded spider gears, or mini spool. No torque dividing differentials.
13. BUMPERS & RUB RAILS: Bumpers must be approved OEM must be in OEM location, capped to fender with steel, welded or
bolted. Maximum one inch wide by two inch tall steel or lexan rub rails allowed- bolted flush to body. Front and rear tow hooks
mandatory No sharp edges allowed on bumpers, rub rails or bolts. No bars past outside edge of body other than rub rails.
14. TIRES/WHEELS: Must use unaltered Hoosier race tires, G60-15 or Maximum 11" sectional tread width street type passenger car
tire. Must have D.O.T. number and tread design Tires must be inside body. No racing, snow, or all-terrain tires. NO HOOSIER TIRES
EXCEPT FOR G60-15 No softening/conditioning, siping/grinding or grooving of tires. Wheels must be a max. of 8" wide. May use
bead lock on right rear only.1´O.D.steel lug nuts required. No bleed valve.
15. BRAKES: Steel, operative four wheel, disc (front) and drum or disc (rear ) brakes, must match frame or rear end. Full OEM
backing plates, Aftermarket Master cylinders okay. Aftermarket brake pedal assemblies allowed, No brake shut off or bias adjuster
or gauges. Steel brake lines only, must be visible .Hubs / rotors , axle flanges and drums may be changed to different bolt pattern and
larger studs.
16. EXHAUST: Round tube header are allowed or OEM cast iron exhaust manifolds allowed.
17. FUEL SYSTEMS: Mechanical OEM type push rod fuel pumps only. Any car 112" wheelbase or more may run factory
UNALTERED OEM(4) four-barrel carburetor Any car less than 112" wheelbase can run a holley 4412 (500 cfm)with a maximum of a 1
1/4 adapter plate (2) two-barrel carburetor. Or a 2 barrel Rochester Unaltered OEM two barrel carburetor for that engine, except:
booster I.D. may be machined to 0.25 inch and venture I.D. machined 1.375 inch on Rochester carburetor. Must remove carburetor
choke plate. No carburetor spacers. One 0.25 inch (maximum) thickness gasket only.Air cleaner top / stud cannot direct air into
carburetor. No top flow air cleaner housings, cold air boxes or air cleaner duct work. Maximum 22 gallon racing fuel cell required, must
be in minimum 20 gauge steel container. Must be securely fasten in trunk above level of OEM trunk floor, behind rear tires, no further
than factory seam where rear frame rail can be replaced, with minimum two solid steel straps around entire cell, two inches wide and .
125 inch thick.. No fuel cells allowed over rear end housing. Metal firewall must be between driver and fuel cell. All cell mounts must be
steel,securely welded to frame / cage. No adjustable fuel cell mounts. 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 rollover valve is required. Fuel lines
through driver compartment must run through metal pipe or metal conduit. One fuel filter only, cannot be in driver’s compartment. No
cool cans.
18. FUEL: Gasoline only. Racing fuel allowed.No E85. No performance enhancing or scented additives. Fuel must pass both dielectric
meter and chemical test
19. WEIGHT: No weight, and / or loose objects in drivers compartment, or outside body, and must not be visible. Weight must be
securely mounted to frame or roll cage and painted weight with car # on it. Must be attached with at least two, 5" bolts. Car must weigh
at least 3100lbs.
20. BATTERY & STARTER: One 12 volt passenger car battery only, must be securely mounted between and above frame rails, and
positive terminal must be covered. Battery must be in marine type case if mounted in driver compartment. Starter must bolt in OEM
location. Car must have capability of starting with out being pushed or pulled. Car must leave initial staging area on demand, un aided
, or go to rear of that race.
21. GAUGES & ELECTRONICS: No unapproved camera, transmitting or listening devices. No timed retard control, or digital gauges
(including tach).No electronic monitoring computer devices capable of storing or transmitting information except analog tach. No
ignition control boxes. OEM ignition only. all ignition rotors, caps, coils and modules must remail OEM appearing. No alternators. No
electronic traction control devices.
22. TRANSMISSION/DRIVE SHAFT: All forward and reverse gears must be operational.
MANUAL: Must be unaltered OEM three or four speed, with minimum 10.5 inch steel / organic single disc-type clutch and steel
pressure plate assembly inside an explosion-proof steel bellhousing- minimum 270 degrees around top of clutch and flywheel area. No
lightweight bellhousing . No hydraulic clutch release bearing. Steel unaltered flywheel only- 16 pound minimum. AUTOMATIC: Must be
unaltered OEM, with unaltered OEM pump, original bellhousing andminimum 10 inch diameter torque converter containing a minmum
of three quarts of fluid. Torqe converter must have a minimum 0.125 inch plug. Must have approved scatter shield constructed of
minimum 0.125 by three inch steel, 270 degree around flex plate. Flexplate must be full, unaltered OEM, or OEM replacement. No
manual bump starts allowed.
23. DRIVE SHAFT: Steel drive shaft ( minimum 2.5 inch diameter) and slip – yokes only. Drive shafts must be painted white. 360
degree driveshaft loop required and must be constructed of minimum 0.25 inch by two inch solid steel, or one inch tubing, mounted six
inches back from front U-joint.
24 ENGINE COMPARTMENT: Engine must be in OEM location. Ford metric frames must have back of fuel pump in front of cross
member. Frame and cross member may not be altered for engine placement. Engine mount holes cannot be removed or altered on
block. Aftermarket steel engine mounts allowed. No mid-plate allowed. Engine must be OEM appearing, must be able to be used in
conventional passenger car without alteration. GM with GM, Ford , Chrysler with Chrysler. Minimum two-core radiator, must be
mounted in front or engine. Overflow tubes must be directed to ground. Steel or aluminum V-belt pulleys only.No electric fans.
25. 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. GM approved block numbers are: 3892657, 3914660,
3914678, 3932388, 3932386, 3956618, 3970000, 3970006, 3970010, 3970014, 10066033,10066036, 10243880, 14010207,
1401209,14010287, 14016376, 14016379, 10054727, 14088528, 14088548, 14088522, 14093638,14101148. Stroke must match
block. No 400 or larger cubic inch parts allowed. Maximum 361 cubic inches (GM) ; 363 cubic inches (Ford); 370 cubic inches
(Chrysler). 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 , such as part /casting numbers and flat top or dish pistons (track option which method
is used ). Flat top or dish pistons only. No gas ported pistons. Cylinder heads must be unaltered approved OEM and minimum
76cc combustion chamber. GM approved head numbers are; 14079267, 3986336, 3986339,3986339X, 3986388, 3932441,
376445, 3928454, 3932454, 3876487, 3973487, 3973487X, 3973493,3951598, 468642, 3300862, 333882,
3998920,3998991,3998993, 3998997, 3970126,; Ford-no after market or SVO heads; Chrysler- no after market or W-2 heads, 360
cubic inch heads only. No porting,polishing or alterations of any kind to heads or intake. Must use OEM cast iron two barrel intake ,No
high rise or marine intake manifolds. No roller cams, No mushroom lifters . Can not alter lifter bores. OEM style roller tip rocker arms
allowed. No beehive valve springs allowed.Guide plates and screws- in shouldered studs (0.375 Inch max) allowed. No stud girdles.
Poly locks allowed. Unaltered OEM type harmonic balancer only. OEM firing order cannot be changed. OEM type steel or aluminum
water pumps only.Wet sump oiling system only. Accumulator allowed, must be mounted under hood.
26. PROTEST RULE:
All protest's must be made in writing, by driver ONLY, BEFORE "A" main, with cash in hand. One item per protest.
***ENGINE PROTEST- $200 cash, $25 to track. If legal, protested car gets $175, If "illegal", protester gets $175 back.
***SUSPENSION -$100 cash, $25 to track. If legal, protested car gets $75, if "illegal", protester gets $75 back.
***ALL OTHERS-$75 CASH, $25 to track. If legal, protested car gets $50, if "illegal", protester gets $50 back.
