Click HERE to download the 2009 Rules (PDF)


12-1.0  THE CAR

12-1.1 This is strictly an economy-based, entry-level class.

12-1.2 Eligibility: any American-made passenger car with a minimum wheelbase of 114-in.

12-1.3  All cars must remain stock for year, make and model per the manufacturer's original specifications.  In these rules, OEM means stock for that year, make and model. The only exceptions are those contained within these rules. In other words, the engine and components that came with the car when manufactured must be in the car. No changing of block, heads, intake, or internal components etc.

12-1.4  No convertibles, pick-up trucks, SUVs, "t-tops," sports cars, hearses or Jeeps.

12-1.5 All installations and/or allowed upgrades must be approved by LVMS tech officials.  LVMS reserves the right to refuse any car from racing that is not built within the spirit of the rules.  All safety issues must be addressed before the car can be allowed to compete.

12-1.6 All casting and part numbers must be legible and intact with no alteration.

12-2.0  BODIES

12-2.1  Body must be complete and stock-appearing.  The stock floor pan, front and rear firewalls, trunk floor and rear wheel wells must remain intact.  No cutting, shortening, channeling or chopping allowed.

12-2.2 All body panels must remain completely stock and not gutted.  This includes the roof, hood, dash and trunk lid.  Exceptions: inner panels of front doors may be gutted for the addition of door bars.  Removal of front fender wells is optional, but cars must have crush panels in place.

12-2.3 All flammable interior and exterior upholstery material must be removed.  Exception: dashboard and dashboard pad must remain intact. Partial removal of the dash for roll bar installation is permitted.

12-2.4 Removal of dashboard gauges and wiring is optional.  Aftermarket gauges/tachometer allowed.  Heater box assembly may be removed and any holes left in the fire wall must be covered.

12-2.5 All holes in the firewall must be covered with minimum 20-gauge sheet metal.

12-2.6 Exterior body molding, antennas and trim must be removed.

12-2.7 All sharp edges outside or inside the car must be flattened.  Fenders may be trimmed and minimum tire clearance to compensate for damage.

12-2.8 Doors must be chained, welded or bolted shut.

12-2.9 Added holes or scoops in the hood are not permitted.  Cars with stock hood scoops or any holes must have the opening completely sealed off - no exceptions.  Cars must have the hood and trunk secured shut either by chain, hood pins or use of stock latches.  The hood and trunk must be easily opened from the outside of the car.

12-2.10 Windshield wipers are optional.  A functioning horn is required.

12-2.11 Stock bumpers are required.  Bumpers must be strapped or chained to the body or frame of the car.  No other reinforcements are allowed.

12-2.12 Seat must be secured in an upright position.  Stock seats are allowed.  Aluminum racing seats are recommended.

12-2.13 All glass must be removed except for the windshield.  Lexan windshields of a minimum of 1/8" are allowed.  A securely mounted metal strap 1"x1/8" minimum must run from the top of the windshield to the firewall on the outside of the window, no more than 15" from the driver-side A-pillar.  Cars with the "Earnhardt bar" are excluded.

12-2.14 All exterior lighting must be removed.

12-2.15 Added weight of ballast is not permitted.

12-3.0  ROLL CAGE

12-3.1  A minimum three-point cage may be purchased commercially or fabricated from the following specs: Upright pipe of at least two inches (2"0 O.D. between the floor and the roof behind the driver, upright  must extend higher than the driver's head when seated.  Each end of the upright must have a plate of at least 6"x6"x ½".  Use a minimum of four (4) ½" grade 8 bolts at each plate.  A minimum of two-inch (2") O.D. pipe crossbar must run from the door bar on the driver's side to the opposite side of the car.  The pipe must be attached to both the door bar and the upright bar.

12-3.2 Any bar that the driver may come into contact with must be padded.

12-3.3 It is recommended that every car have a minimum 6"x 3/8" steel plate or a 4"x¼" channel located in the center of the driver's side door.  Center the plate or channel so that it is at least 12" from the front and rear of the door ( or as your body size allows).  Round off the outer edges and secure it with a backing plate and at least four (4) Grade-8 ½" bolts.

12-3.4 Cars may run a NASCAR-style four or six-point cage.  All roll bars including kickers must remain within the driver's compartment, no exceptions.

12-4.0  ENGINE

12-4.1  The engine and all of its components must be stock OEM with a maximum .030 overbore allowed for rebuild.  Any procedures associated with a common rebuild are allowed.  All rebuilt engines must use OEM replacement parts.(what came with the car for that year, make and model only).

12-4.2 Stock, cast iron intake manifold and exhaust manifold only.  No altering of any kind allowed.

12-4.3 Carburetor must remain stock OEM specifications, no modifications allowed other than choke plates may be fixed open.  Replacement carburetors allowed, must be stock replacement.  Casting numbers must be identifiable and legible.  Cars must have two (2) throttle return springs.  Heat shields or spacers of 1" maximum thickness allowed.

12-4.4 Exhaust must extend past the driver and exit toward the rear of the car.

12-4.5 Engine mounts must be stock, but may be reinforced or strapped.  Engine must be in stock location.

12-4.6 Aftermarket, non-performance air cleaner assemblies allowed, subject to tech approval.  Must use paper elements.

12-4.7 Removal of bolt on components such as smog pump and A/C compressor optional.


12-5.1  Stock radiator, fan and fan shrouds only.  Electric fans are not permitted. Must have stock radiator core support intact.

12-5.2  A radiator hoop may be installed.  It may not exceed past the inner limits of the front bumper, with a maximum of two (2) down bars and two (2) kicker bars connected to the frame, in front of the upper control arms.  Must stay within the width of the frame rails.

12-5.3  No antifreeze allowed in the radiator.  An overflow bottle of half-gallon capacity minimum is mandatory.

12-5.4  No external cooling devices are permitted. 


12-6.1  Must remain stock OEM.  No aftermarket performance ignition parts allowed, including, but not limited to, the coil, cap, rotor, module, etc.  Must use OEM distributor set-up.

12-6.2  Battery must be secured in a leak-proof box in either the trunk or located behind the driver's seat.

12-6.3 All cars must have key ignition or a clearly-marked kill switch.

12-6.4 No exterior brake lights are permitted.


12-7.1  Automatics only.  Must be stock OEM.  No internal performance modifications allowed.  Mounts must be stock, reinforcing allowed.

12-7.2  Each car must have a functional reverse gear and torque converter.

12-7.3 An aftermarket transmission cooler is allowed, must be properly secured in the engine compartment.

12-7.4 An aftermarket transmission shifter and linkage is allowed, subject to tech approval.

12-7.5 Stock driveline must be painted white.  Two hoops, located 12" from each end of the driveline made of 2"x1/8" steel strap are required.
12-7.6 Rear differential must be stock OEM.  Exceptions: must be open, no locking of any means allowed.

12-7.7 A maximum gear ratio of 3.55 is required.

12-8.0  BRAKES

12-8.1  Stock OEM brake assembly and components.  All four (4) brakes must function properly.

12-8.2 All brake components must be OEM replacement. No cross-drilling of rotors.

12-8.3 Stock proportioning valves only.


12-9.1 Street tires only.  DOT Racing Street Tires and recaps of any kind are not permitted.  Subject to tech approval.  No side walls smaller than 60 series, ex: 235/60/R15.

12-9.2 All four tires must be the same diameter.

12-9.3  Seven-inch (7") or eight-inch (8") steel wheels only. Racing wheels are permitted.  Wheel spacers are not permitted.

12-9.4  Oversized lug nuts of 1" are required.  Wheel studs must extend past the lug nut a minimum of two (2) threads.


12-10.1 The frame must remain stock OEM with no modifications.  This includes but not limited to cutting, notching, lightening or moving of suspension points or frame altering allowed.  Exception:  frames damaged due to accidents may be repaired with equivalent steel material, no further back than the front of the control arms or rear differential hump.

12-10.2 Stock OEM steering system.  Power steering pumps optional.  Steering wheel must have a minimum of a 2-in. (2") pad in center of steering wheel.

12-10.3 Stock OEM suspension.  Control arm/trailing arm bushings may be replaced with a urethane type.  Solid bushings are not permitted.  Control arms may not be altered from stock OEM in any way.  All components must mount in stock location.

12-10.4 Aftermarket stock OEM replacement springs allowed.  Springs may not be over 100 lbs. of the maximum rate by OEM specifications.  Rear leaf springs must be securely contained and with the stock OEM mountings.  Leafs may be added or removed, no spacers allowed.  Coil springs may be cut.  The use of coil spring spacers are permitted, they may not be adjustable.

12-10.5 Rear sway bars permitted if stock OEM.  Front and rear bars must use stock mounting.  Adjustable sway bars are not allowed.  Bars must be of stock diameter.

12-10.6 Over-exaggerated camber is not permitted.  Maximum of one inch (1") in or out.  Camber will be measured at the wheel.

12-10.7 Shocks must be stock OEM replacements.  Shocks may be gas-filled or oil-filled with a retail value of less than $25.00 each.  Brand and model numbers must be legible.
12-10.8 Adjustable/racing shocks of any kind are not permitted.

12-10.9 All cars must maintain a minimum of six inches (6") ground clearance at any place on the frame.

12-10.10 Shock claim rule: Any competitor running in that day's event may claim all four (4) shock absorbers of another competitor following the completion of the event for $100.00.  Claim must be made before the event starts by giving the tech inspector a sealed envelope with $100.00 cash.  Failure to sell the shocks will result in disqualification from that event and a suspension of the next four (4) Bullring Bomber events.  The claimed driver will receive the $100.00 upon removal of the shocks.  Claims will not be accepted the final night of points racing.


12-11.1 Stock fuel tank must be removed and replaced with a maximum twelve (12) gallon steel fuel cell or marine fuel tank.  Fuel cells must have a ground strap from the filler neck to the car chassis.

12-11.2 The fuel tank must be located as far forward as possible in the center of trunk compartment. Fuel tank must be secured with steel straps or nylon tie-down straps. Station wagons must install a sheet metal barrier between the fuel tank and the driver's compartment.

12-11.3 Fuel line must exit out of the top of the fuel tank only.

12-11.4 No fuel lines in the driver's compartment.

12-11.5 Stock OEM replacement mechanical fuel pumps only.  No electrical pumps.  No performance pumps.  Metal fuel filters only, no glass or plastic.

12-11.6 Gasoline pump-type fuels only. Maximum of 91 octane only.  No racing fuel of any type permitted.


12-12.1 Helmets required per section 8-1.1 in this rule book.  Eye protection is mandatory.

12-12.2 Polyester or nylon clothing is not permitted. Each driver must wear a long-sleeve shirt and long trousers (not shorts) made of cotton, wool - or a Nomex driving suit.

12-12.3 A minimum four-point safety harness is required.  Five-point safety harness is recommended.  Must be current and have date stamped.

12-12.4 An approved racing seat is recommended for driver.

12-12.5 A mandatory 2-lb. fire extinguisher must be securely mounted within the reach of the driver.

12-12.6 A driver's side window net is mandatory.  Must be securely fastened at both the top and bottom, subject to tech approval.  Must have a quick release.

13.0 CLAIM RULE: May be imposed with 2 race notice to all drivers in this division.