A. RACECEIVERS ARE MANDATORY AND ARE A DISQUALIFYING SAFETY INFRACTION WITHOUT THEM!!!!!!
B. THE ONE SPIN RULE IN YOUR HEAT WILL BE IN EFFECT. ANY SINGLE CAR CAUTION THAT IS DEEMED TO BE HIS/HER FAULT WILL BE ASKED TO LEAVE THE TRACK AND WILL BE SCORED IN THE LAST POSITION OF THE LAST COMPLETED LAP
C. ANY DRIVERS REGISTERING IN MORE THAN ONE CLASS WILL BE REQUIRED TO PAY A $30 FEE FOR EACH ADDITIONAL CAR HE/SHE DRIVES.
D. FIGHTING WILL NOT BE TOLERATED. FIRST OFFENSE: 4 MONTHS SUSPENSION SECOND OFFENSE: TO BE DETERMINED BY BATTLEGROUND SPEEDWAY PROMOTER.
E. ABSOLUTELY NO DRINKING IN THE PITS UNTIL THE LAST CHECKERED FLAG OF THE EVENING DROPS! ANYONE CAUGHT DRINKING ALCOHOL IN THE PITS PRIOR TO THE LAST CHECKERED FLAG WILL BE SUSPENDED FOR 30 DAYS.
F. IF YOU STOP ON THE RACETRACK TO ARGUE WITH A BGS OFFICIAL OVER A CALL OR POSITION ON A RE-START, YOU WILL BE BLACK FLAGGED AND SENT TO THE PITS. IF THIS HAPPENS DURING A HEAT RACE, YOU WILL START AT THE BACK OF YOUR FEATURE EVENT. IF IT HAPPENS DURING THE FEATURE, YOU WILL BE DISQUALIFIED FROM THE EVENT WITH LOSS OF ALL MONEY AND POINTS AWARDED FOR THAT EVENING.
G. IF A CAUTION OCCURS ON THE WHITE FLAG LAP AFTER THE LEADER HAS TAKEN THE WHITE FLAG, THE RACE WILL BE CONSIDERED COMPLETE AND FINAL FINISHING POSITIONS WILL BE DETERMINED AS OF THE LAST COMPLETED LAP.
H. POINTS FOR THE 2013 SEASON CHAMPIONSHIP IN EACH CLASS (EXCEPT LATE MODELS - WHICH WILL FOLLOW THE POINTS SYSTEM OF THE NESMITH WEEKLY DIRT RACING SERIES) WILL BE DETERMINED BY ADDING ALL POINTS COLLECTED DURING THE SEASON WITH “NO DROPS”. IF A TIE OCCURS, WE WILL THEN LOOK AT THE NUMBER OF WINS, FOLLOWED BY THE NUMBER OF 2ND PLACE FINISHES AND SO ON IF NEEDED.
I. A REFUSAL OF A BGS TECH OFFICIAL’S REQUEST IS AN AUTOMATIC DISQUALIFICATION AND LOSS OF ALL POINTS AND MONEY WON FOR THAT NIGHT.
J. BGS WILL DETERMINE NUMBER OF CARS/HEAT BASED UPON TOTAL CAR COUNT IN THE CLASS, NUMBER OF LAPS OF HEAT RACES AND WILL STRICTLY ENFORCE THE 30 MINUTE TIME RULE FOR ALL FEATURES. (Red flag conditions do not count toward the time limit, but cautions do.)
K. In the event of a rainout after all the heat races have been completed, the purse for your features will be paid based upon your starting position in that feature. If the rainout occurs before all heats are complete, we will start completely over at the next weekly scheduled event. Your pit passes will be honored that next regular weekly scheduled event or the next event your class is scheduled. Specials such as ASCS or SUPR will not count as your next weekly scheduled event. If the rainout occurs during your feature, the purse will be paid by finishing positions on the last completed lap prior to the rainout.
Starting in the 2013 Season Battleground Speedway will be racing Late Models as part of the Nesmith Dirt Late Model Weekly Series. Complete rules for the class are available by clicking on the link to Nesmith's website below.
**The ONLY rule difference for competetors at Battleground Speedway than stated in the Nesmith rules below will be the following:
- MANDATORY "Crate Racin USA 55" stamped tires ONLY on ALL 4 wheels.
Nesmith Late Model Rules
Any driver racing in any other class at Battleground Speedway, (Except Eco-Stock), will be eligible to race in the Pure Stock Class during the 2013 Season.
Weight limit is 3400lbs, including driver and passenger. Cars must be street type and must retain complete steel body.
American made passenger cars only. Metric frame, (monte carlo, thunderbird) cars are allowed. Nova’s, s-10 and ford ranger pick-ups are allowed. Only metric framed station wagons are permitted with enclosed rear compartment. No other makes or models will be accepted. No camaro, Cadillac, town cars, mustang or corvette. No commercial vehicles, convertibles or sports cars. Altering original frame wheelbase is not allowed. Minimum wheel base is 108” per OEM specifications for stock factory production. Allowance to 107.5 for caster adjustment will be allowed at the technical inspection pad.
Fenders may be cut for tire clearance. Cutting width not to exceed 7” of the tire circumference.
Body sheet metal must be in place at the beginning of each race event and kept in an acceptable appearance through out the season.
Doors must be welded or bolted shut.
All glass, fiberglass, plastic and trim must be completely removed from the car.
Driver and passenger door may be gutted for roll cage installation, but no other gutting of the car is allowed. This includes hood, trunk and roof as well. If hood or trunk has already been gutted angle shall be welded in to replace factory material.
Hood and trunk must be secured with hood pins at all times. No holes allowed in hood except for hood pin holes.
All openings in the car that could propose a safety hazard to the driver must be sealed shut at all times.
Stock OEM bumpers are required for the same make of the car. Bumper loops are also required in front and rear to protect the radiator and fuel cell. The tubing will not exceed 0.95 x 1 ½ OD with a maximum height of 6” tall and no wider than the frame.
Roll bars must be constructed of 1.5” x 0.95” steel tubing minimum. Main roll bar and halo must be a minimum of 1” higher than the drivers helmet. Minimum of three (3) door bars on the driver side and a minimum of two(2) door bars on the passenger side. FRONT LOOP IS ALLOWED TO PROTECT RADIATOR AND FRONT FRAME ARMS. FRONT CORE SUPPORT MAY BE REMOVED AND CAN NOT BE EXTENDED PAST HOOD. Maximum size is 1.5” O.D., .095” tubing. All roll cage welds must be complete and pass safety inspection by tech officials. Floor pan may be cut for cage and sub-frame connectors, but must be replaced by a minimum of 20 gauge steel. X-bracing under the driver (frame-to-frame) is allowed.
A single nerf bar is allowed on each side of the car. Maximum size is 1.5"X 0.95". May be attached main cage only at the front and rear section of the nerf bar. This means only (2) attachment points are allowed. No open tubing allowed. Tubing must be capped or rounded with no sharp edges. No nerf bars are allowed outside the rear outside quarter panel area. Nerf bars may not extend outside of tires.
Compression rule is 160 PSI cranking compression.
Straight or V-6 cylinder within 11 cubic inches of factory or V-8 engine with maximum 361 cubic inch engine must remain in stock location. Stock motor mounts are required. May use OEM stock steel replacement motor mounts, which must bolt into stock location. Stock cast iron OEM blocks only. No machining in lifter valley (except for oil flow drain openings) or in lifter bores. Engine components must be stock, or stock appearing. No lightweight cranks allowed. No knife edge, no bull nosing, undercut or drilling of second or third rod journal throws allowed. No aerowing or similar (but different brand ) cranks. Rods must be 5.7” only. 3:48” stroke only. 49 lb minimum weight for crankshaft. No performance parts. Only OEM replacement style pistons with (4) equal valve relief are allowed, cast only. Flat top or dish pistons only, must be cast, no forged pistons. No total seal rings are allowed.
Must have 1” sight plug in oil pan between second and third pan bolt on the drivers side.
Cylinder heads must be stock for year, make and model. (305 on 305, 350 on 350, etc.) No closed or partially closed chambered heads, maximum 1.94 intake valves and 1.50 exhaust valve. No Vortec heads. No aluminum heads. Heads may be flat milled for surfacing reasons only. No angle milling. Studs may be pinned. Screw in studs will also be permitted. Casting numbers must remain in heads. No interior deburring or grinding allowed. Ford is allowed a 1.6 exhaust valve. Any single valve spring with dampener is allowed. No double or triple springs allowed. No porting, polishing, port matching or coatings of any type allowed. No aluminum or titanium components allowed. Full roller rocker arms and roller tip rockers are not allowed. Poly-locks are allowed. Stud girdles & guide plates are not allowed.
Intake must be cast iron. No high-rise intakes, no marine intakes. No deburring or grinding allowed. No porting or polishing of any kind. No brezenkis. Blocking of heat risers and EGR holes allowed. Most brand, style or size air cleaner is allowed. No type of RAM air or forced air induction will be allowed. Any valve cover combination allowed.
Carburetor must be OEM style with no modifications permitted. Must be original size and type to year, make and model. NO adapters or spacers. Removal of choke flap is the only modification allowed. Rochester 2 barrel adaptor 1 inch maximum of thickness. No adapter allowed on 2 barrel GM cast iron intake. No carburetor spacers. Holley carburetor P# 0-7448 model 2300 or holley rebuilt # 657448 will be only holley carb allowed (if using this specific part number a 200lb weight break will be allowed). No other rebuilder will be legal. No alterations are permitted, except choke flap can be removed. Must use NON- adjustable carb adapter only. Gas only, No additives.
Holley 4412 will be optional. See Hobby Stock rules for allowable spacer and gaskets. 4412 must pass a “go-no-go” gauge test.
Camshaft and lifters must be hydraulic with a maximum of 450 lift. Lifters must be of stock OEM type. Tech clarifications: in order to maintain a 450 lift on your camshaft, you must not exceed a camshaft lobe of 280 degrees with 1.6 rocker arms, which will measure a 450 lift. Also, a 450 lift cam with 1.6 rocker arms measure a 480 lift at the valve, which will be deemed illegal. Know what your camshaft and rocker arm combination produces in order not to exceed a 450 lift measured at the valve. The engine must hold 15” vacuum at 1000 RPM. No 1.6 rockers. Stock size lifters only.
Exhaust manifolds must be stock cast iron only. No corvette style, (2.5 port exhaust) stock manifolds. No porting, polishing, acid treatment or coatings. Exhaust pipes must extend past drivers compartment.
Cast iron water pump is required. Pulleys may be aluminum after market. Fan must be steel and attached to water pump. Fan spacers may be used. An additional electric cooling fan may be used to assist cooling under yellow flag periods, but all stock fan, pulley and belt components must remain installed.
Must remain and be completely stock OEM replacement parts only. Stock HEI ignition is allowed. No MSD modules, no MSD systems or any after market or GM ignition boxes allowed.
Must be stock OEM style fuel pump. Carter and holley manual style are allowed. Push rod activated lever style.
Must be securely mounted in trunk of car between frame rails. All cars must have a fuel cell with maximum capacity of 22 gallons. All fuel cells must have a roll-over valve. No plastic boat tanks.
Brake system must remain stock OEM to make and model. No after market components of any kind. Stock pedal and stock OEM master cylinders required in OEM location with no extension on the push rod or the pedal assembly. Car must have a minimum of 3 wheel brakes in working order at all times. No proportioning valves. Rear disc brakes will be allowed for safety reasons. Rear disc brakes are highly recommended for safety reasons.
OEM stock transmission. All torque converters must be 12 “ with no modifications. All forward gears must be in working order on all transmissions with a neutral and working reverse. No over-drive transmissions. All standard transmissions must be OEM stock with all forward gears and reverse in working order, and minimum 10.5” clutch, pressure plate, and full size stock flywheel. Standard transmissions must have a ¼” steel plate covering the bell housing 180 degrees over the sides and top of clutch assembly or a blow proof bell-housing. No aluminum or light weight flywheels, no 5 or 6 speed standard transmissions, no overdrives. Must be self starting. Transmission coolers okay, but must be out of drivers compartment or shielded to protect the driver.
All drive shafts must be steel and painted white. Drive shaft must have safety loop within 6” of the front U-joint. No chain loops allowed.
Must be stock OEM for make, and year of car. Any gear ratio is allowed as long as the housing doesn’t have to be altered. Rear end must be locked. Mini spools are ok. No limited slip or posi-traction.
Must be stock OEM steering for year, make and model. May use after market steering shaft and quick release steering wheel disconnect. NO quick-steer of any type.
Suspension parts must remain stock for year, make and model. No modification to any suspension component. No adjustable or non-adjustable spring spacers. No racing shocks. Bushings may be replaced with stock style OEM type only. No bilstein, afco, pro, and qal type racing shocks. Racing springs allowed (steel only). Leaf springs may use lowering blocks. Leaf springs must be made of steel only.
60 series dot tires only. Must be able to have road hazard. NO SOFTENING OF TIRES! No recaps. May use Hoosier stamped G60, or American Racer KK/704.
Any 8” steel wheel permitted. Wheel minimum weight is 19 lbs. NO light weight wheels permitted. 5/8 studs and 1” lug nuts are recommended. NO beadlocks. Wheel spacers will be allowed. If using wheel spacer, 5/8 studs will be mandatory.
Racing seats with rib supports are required. Seats must be securely mounted to chassis, NOT FLOOR PAN, with a minimum of 4, 3/8” bolts. 5 point safety harnesses are required, S.F.I. tag must be legible and no more than 5 years old. Straps must NOT be frayed in any way. Connectors must lock and unlock freely. Must be bolted to the roll cage and frame with a minimum bolt size of 1/2” bolts. A window net is required on both sides of car while carrying a passenger. No sprint car nets. All helmets must be full-face, current snell 90 or newer sticker in it. Snell sa90 and sa00 legal. All drivers and passengers are required to wear a driving suit. No nomex coveralls will be allowed. Neck brace is MANDATORY for all drivers and passengers. Driving gloves and driving shoes are recommended.
Numbers must be 24” high and 4” wide on both sides of car and 28” tall on the roof and positioned so it can be read from the passenger side. Cars must be painted and numbered neatly and to be seen easily by the scorekeepers. The number on the roof is the most important number. Reflective vinyl is not recommended for roof application due to the poor read ability. All numbers must be of different color than background. When positioning the number on the roof, it should be readable from the passenger door.
Protest must be made before a feature in writing by driver ONLY!!!!! See tech official.
$75 valve cover removal and inspection or $150 head removal and inspection. $100 to the driver and $50 to the points fund. Rules are subjected to change at any time. Any rule infraction to be in question will be at tracks discretion.
Hobby Stock Rules
Cars must be a stock street type. American made passenger cars only. Any steel factory style OEM body is permitted, and must have factory trunk, hood, roof, fenders, and quarter panels. Complete bumper-to-bumper steel body must be retained. Doors must be welded or bolted shut. Doors may be gutted for cage installation. All glass, plastic, fiberglass and trim must be removed from race car. Upholstery and plastic portion of the dash must be completely removed. A-posts may be trimmed and cleaned up to allow for engine set back, but must be reinforced. Window post may not be removed. No after-market bodies, no stock car bodies, no aluminum bodies or body panels. Note: 1981-1988 Performance Bodies street stock Monte Carlo steel body is the only after-market body allowed. All bodies must be proportionate to the year and make of frame. OPTION: Performance Bodies “Classic Dirt Noses” as shown on page 35 of their catalog will be allowed but must be mounted vertical as original manufacture intended. NO SLOPED LATE MODEL STYLE FRONT BUMPERS OR NOSE
Frame must remain square and to factory specs. Metric frame, ( Monte Carlo , Thunderbird) cars are allowed. Novas allowed. Only metric framed station wagons are permitted with enclosed rear compartment, no other makes or models will be accepted. No Town Cars, Mustang Camaro/Firebird or Corvette. No commercial vehicles, convertibles or sports cars. Minimum wheel base is 108” per OEM specifications for stock factory production. Allowance to 107.5” for caster adjustment will be allowed at the technical inspection pad. Chevy S-10, Ford Ranger, Dodge Dakota are also allowed.
Firewalls must be complete, from fender to fender, top to bottom with all holes covered with 20ga steel minimum. Floor may be cut to allow firewall clearance for headers and distributor, but area must be closed with 20ga steel. Stock floor pan must extend from front firewall to rear fire wall. All rusted portions of the floorboard must be replaced with minimum 20 guage steel. Driver compartment may be enclosed with 20ga steel with complete interior window level decking (may be aluminum). If compartment enclosed, and decking in place, rear firewall may be removed, floor pan must remain from front firewall to no less than 25 inches forward of rear axle centerline and must fully extend from left rocker panel to right rocker panel.
Driver must be on left side of drive shaft. Fender wells may be altered or removed. No part of drivers seat shall be less than 30 inches forward of left rear axle centerline. Driver must be located in the original OEM seat location on the left side of the vehicle only. No back seat mounting of drivers seat.
Minimum weight is 3200 pounds with driver after race.
Holley #4412 two barrel is the only carburetor allowed Choke horn must be attached. Circle track floats may be used. allowed. Number must be legible on air horn. No machine work on carburetor. Holley carburetors must be mounted on cast iron 4 barrel intake with an adaptor only. . Carburetor spacer/adapter is allowed, but must not exceed 1-1/4” total thickness including gaskets. No other spacers are allowed. No other alterations are allowed. Only one carburetor allowed on engine. No other carburetors are allowed. No injectors or pressure systems allowed. Carburetor must pass a go-no-go gauge. If a 602 crate motor is used, the rules for carb,, spacer and gaskets under the crate 602 ruling in the Limited Modified rules apply. Battleground Speedway has the option at any time to eliminate the 4 bbl. carb, spacer and gaskets and require all engines in the Hobby Class, including the crate 602, to run the Holley 4412 along with proper spacer and gaskets as listed above.
OEM cylinder heads only with a minimum 68cc chamber size. No closed chamber heads except 305 heads on 305 engine only. No partially closed chamber heads. No 461 or 462 heads. Open chamber heads only. No vortec heads. Race cars using GM engines must run 350 heads on 350 engines, and 305 heads on 305 engines. No aluminum heads. No special order heads or factory special order heads. Any open chamber cast iron steel OEM factory production straight plug head is allowed that meets the described requirements. All GM heads are limited to 1.94” intake valves and 1.50” exhaust valves. Heads may be flat milled for surfacing reasons only, no angle milling allowed.
Studs may be pinned or screwed in. Push rod guide plates are allowed. Any single valve spring with dampener is legal. No double or triple springs allowed.
No porting, polishing, port matching or coatings of any type allowed. No aluminum or titanium components are allowed.
Any work done in the bowl area must be done with a 360 degree cut, with the valve guide as the center point.
Full roller rocker arms and roller tip rocker arms are not allowed. Poly-locks are allowed. Stud girdles are not allowed.
May be in stock location or #1 spark plug can be even with ball-joint or forward. #1 spark plug may not extend behind upper ball joint on any car.
Cast iron OEM blocks only. After-market steel stock type engine mounts are allowed. No machining in lifter valley (except for oil flow drain openings) or in lifter bores.
Engine components must be stock, or stock appearing. No lightweight cranks allowed. No knife edge, no bull nosing, undercut or drilling of second or third rod journal throws allowed. No Areowing or similar( but different brand )cranks .
Rods must be 5.7” rods only. 3:48” stroke only. 49 lb minimum weight for chevy 350cid No Chevrolet bowtie, Ford SVO or Mopar performance blocks. Stock stroke must be maintained No performance parts. After-market rod bolts may be used. Only OEM replacement style pistons with four (4) equal valve relief are allowed cast or forged. Floating wrist pins are allowed. Flat top pistons with four (4) equal valve relief or dish pistons only, no domed pistons. No total seal type rings are allowed. Maximum cubic inch displacement allowed is 364 c.i.d. Boring to a maximum of .060” over stock OEM bore is allowed.
Fords: 289, 302, or 351 blocks only with flat top pistons. Any OEM Ford head is allowed. No after-market or Boss heads allowed. Maximum valve size is 1.94” intake and 1.50” exhaust.
Only 273, 318, 340 and 360 blocks can be used for Mopar. No big blocks. OEM only. No Hemis.
Again: only, Ford, Chevy or Mopar engines are allowed.
Mopar= Chrysler, Plymouth and Dodge. 370 cubic inch maximum.
Ford= Ford and Mercury. 360 cubic inch maximum.
Chevy= Pontiac, Buick, Oldsmobile as long as they are Chevrolet engines. 364 cubic inch maximum.
Stock style rockers arms only, no full rollers, and no roller tips. No stud girdles.
A stock oil pan or a claimer style pan is allowed. Oiling must be complete wet sump. No dry sump systems allowed.
After-market harmonic balancer is allowed.
Must have 1” sight plug in oil pan between the second and third pan bolt on the drivers side. No obstruction of sight through inspection hole inside of pan.
Compression rule is 180 lbs. per cylinder with 5 bumps of guage.
Optional: The 602 crate motor is optional for Hobby Stocks.
Camshaft and lifters must be hydraulic with a maximum of 450 lift. Measured at the valve. Tech Clarification: In order to maintain a 450 lift on your camshaft, you must not exceed a camshaft lobe of 280 degrees with 1.6 rocker arms, which will measure a 450 lift. Also, a 450 lift cam with 1.5 rockers arms will measure a 450 lift. Be advised that a 450 lift cam with 1.6 rocker arms will measure 480 lift at the valve, which will be deemed illegal. Know what your camshaft and rocker arm combination produces in order to not exceed a 450 lift measured at the valve.
Intake must be cast iron. No high-rise intakes, no marine intakes and no aluminum intakes. No porting, polishing, port matching, acid porting, acid treatments or coatings of any kind.
Most brand, style or size air cleaner are allowed. NO type of RAM air or forced air induction will be allowed. Any valve cover combination allowed.
Cast iron water pump is required. Pulleys may be aluminum after-market. Fan must be steel and attached to water pump. Fan spacers may be used. An additional electric cooling fan may be used to assist cooling under yellow flag conditions, but all stock fan, pulley and belt components must remain installed.
Ignition must remain under stock OEM cap. Stock HEI ignition is allowed. No MSD systems or any after-market or GM ignition boxes allowed. No external coils.
All cars must have ignition switch clearly labled. The car must be equipped with a kill switch to be located within reach when standing outside the car and easily accessible to emergency personnel.
Only under chassis headers allowed. No 180 degree headers. No cross over headers. No step headers. Stock cast iron exhaust manifolds allowed. All exhaust pipes must extend past driver seat or exit to outside of car.
Only one radiator may be used. Must be in stock location. No cutting of hood for clearance. Aluminum radiator is allowed. Racing radiator cap is allowed.
Gasoline ONLY. Racing fuel allowed. NO additives allowed. NO alcohol.
Fuel pump must be stock OEM style. Carter and Holley manual styles are allowed.
Fuel cell must be securely mounted to frame in trunk of car between the rear frame rails. Fuel cell in a steel can is required if cell is dropped down between frame rails. A plastic fuel cell may be used only if complete floor pan is in place. Fuel cell is required, maximum capacity of 22 gallons.
Any OEM automatic transmission is allowed. Unit must be stock and have a full working torque converter, minimum of 10”. Powerglides must have 10” torque converter. No direct drives, valved pumps, or bleeder style valve bodies. All forward, neutral and reverse gears must be in working order for all automatics, except powerglides. Powerglides are allowed either one or both forward gears, with neutral and reverse in working order.
Standard transmissions must be OEM stock, with all gears in working order and a minimum of 10.5” clutch, pressure plate and full size stock flywheel. No mini-clutches or direct drives. Standard transmissions may not use aluminum flywheel of any size.
All standard transmissions must have bell housing made of ¼” thick steel and must cover 180 degrees over the sides and top of the clutch assembly (also referred to as a blow-proof bell housing).4-speed manual transmission will be allowed.
No 5-speed or 6-speed manual transmissions or overdrive units. No Bert, Brinn or internal clutch style transmissions allowed. No ram couplers allowed. Quick-change transmissions or transmission adapters for gear change are not allowed.
Cars must be self-starting and have working neutral, reverse and ALL forward gears. (ex. 3-speed trans. Must have 3 forward working gears.
Transmission fluid coolers are allowed, but may not be mounted exposed in drivers compartment.
Drive shaft must be steel and must be painted white or silver. Drive shaft must have a steel drive shaft loop (360 degrees) connected to the frame located within 6” of the front drive shaft u-joint. Minimum size of drive shaft loop is 2” X ¼” or minimum of 1” round tubing. No chain loops are allowed as drive shaft loops.
Rear-end must be stock OEM for year, make and model. Any gear ratio allowed as long as no altering of housing is required to allow for installation. 8.5 rear-end may replace 7.5 Must use stock OEM, for frame being used, length upper and lower control arms.
Axles must be locked together at all times with mini-spool or welded. No posi-trac, limited slip, Detroit locker of full spool allowed.
Pinion angle may not be altered.
Racing brake pedal and single racing master cylinder are allowed. No aluminum brake components on any car. Cars must have a minimum of (3) functioning brakes. If (4) brakes are installed, a cut-off valve may be used on one of the brakes. Cut-off valve may not be within reach of driver compartment. Adjustable proportioning valves are not allowed. If using (3) brakes, the 4th brake components need not be present other than the rotor, which you can remove outer portion. Rear disc brakes are allowed with steel components only and with only a single piston caliper.
Quick-steer of any type or style are allowed. Complete OEM stock steering system for year, make and model, from the steering box to the spindles, including steering gear box must be used. Cast iron steering box only. After-market steering shaft and quick release steering wheel is allowed. Steering wheel spacer allowed to a maximum of 3” thick.
No modifying of the suspension is allowed. OEM suspension parts only. IMCA TUBULAR UPPER CONTROL ARMS WILL BE PERMITTED (steel only and must be IMCA stamped, non-adjustable). No cutting, welding or bending of frame to accommodate suspension changes. Suspension parts must remain absolutely stock for that year, make and model of car. This includes spindles, rotors, upper control arms, lower control arms, ball joints, tie-rods, tie-rod sleeves, center-link, pitman arm, idler arm, steering box and trailing arms. No adjustable spring spacers. All upper/lower trailing arm and upper/lower control arm bushings must be present; however, they may be replaced with after-market bushings. No mono-ball bushings. Bolt on spindle savers are allowed. Upper control arm can be strengthened with a maximum of 3/8 inch cold roll or rebar along outer lip with the groove.
Racing springs may be used. Maximum coil spring length 13”. Rear coil spring must not extend through the stock OEM upper spring bucket. Adjustable spring bucket allowed on rear only. Leaf springs may be after-market, (steel only) but no adjustable lowering blocks.
Any steel non-jack bolt type leaf spring shackles are allowed, including multi-hole.
No sliders. Spings must be mounted in OEM location top and bottom.
Shocks must be steel OEM replacement shocks. Shocks must be mounted using the OEM stock mounts in the factory installed location. No heims on shocks allowed. No shock adapters.
Roll bars must be constructed of 1.5” X 0.95” steel tubing minimum.
Main roll bar and halo must be a minimum of 1” higher than the drivers helmet.
Minimum of (3) door bars on the driver side and a minimum of (2) on the passenger side. Front loop is allowed to protect radiator and front frame arms. Front core support may be removed and can not be extended past hood. Maximum size is 1.5” O.D., 0.95” tubing. All roll cage welds must be complete and pass safety inspection by tech officials.
Floor pan may be cut for cage and sub-frame connectors, but must be replaced by a minimum of 20 gauge steel. X-bracing under the driver (frame to frame) is allowed.
A single nerf bar is allowed on each side of car. Maximum size is 1.5” X 0.95”. May be attached to main cage only at the front and rear section of the nerf bar. This means only (2) attachment points are allowed. No open tubing allowed. Tubing must be capped or rounded with no sharp edges. No nerf bars are allowed on the rear outside quarter panel area. Nerf bars may NOT extend outside of tires.
A minimum of (3) vertical windshield bars are required. Must be a minimum of 3/8” diameter steel and mounted in front of the driver.
60 series D.O.T. radial tires Must be able to have road hazard. May use Hoosier stamped G60 or American Racer KK 704 as an option. Grooved and siped tires are allowed. No softening of tires.
Any 8” width steel wheel. Any offset from 2” through 5” is allowed. After-market 5/8” lug studs are recommended. 1” diameter lug nuts are required. Wheel spacers are not allowed with stock studs. Wheel adaptors are not allowed. No screws allowed. A protective outer ring is allowed to be welded to the outer lip of the wheel with a maximum size 1/2” O.D., round or square is allowed. A flat bar of 1.25” may also be used. Bead lock placed on right rear only.
Any oil or transmission fluid coolers in the drivers compartment must be configured to shield driver in case of leaks. The cooler lines must be encased in tubing, rubber or steel may be used.
Fenders may be cut for tire clearance only and fender must be within 7” of the tire. Front inside fender wells must be removed.
Stock OEM bumpers are required. Option: After-market plastic bumpers may replace stock OEM bumper but must not extend past fender in width. A maximum of 2” X 3” rectangular tubing or 1 ¾” round tubing should be used to support plastic Bumper loops are required to protect radiator, fuel tank and to be used by wrecker for tow hooks. Single horizontal and single hoop bar are the only bars to protrude through the nose. Maximum 1.5” X 0.95”round steel tubing, maximum 8” tall and not wider than the frame horns and mounted to the frame or bumper only. Will be asked to cut them off if wider than frame horns.
Steel hood/trunk required, No aluminum. Hood/trunk may be hulled and must remain in place at all times. Hood must be pinned. No holes allowed in hood: therefore, no working hood scoops. Any holes in hood must be covered by steel. Quick release hood pins and rear deck pins are required. Hood must make a complete seal dashboard and/or firewall. The engine compartment must not be visible from drivers seat.
Not to exceed 6” and must be attached to rear of trunk lid only. May not extend past the width of the car and may not have side-boards. Spoiler supports may not be taller than spoiler and may not be longer than 12”. Spoiler may be made of aluminum, steel, or lexan.
Only (1)- 12-volt battery allowed. Battery and battery box must be securely mounted to car and safely sealed. Battery must be completely encased in an enclosed battery box if mounted in driver compartment.
Racing seats with rib supports are required. No fiberglass or bucket seats. Seats must be securely mounted to chassis (not floor pan) with a minimum of (4) 3/8” bolts, of which (2) must be mounted in the middle of the seat at the drivers back.
Racing type 5-point seatbelts are mandatory. All 5 belts must be fastened while driver is in car and on racing surface. Must be securely mounted with ½” bolts and tabs welded to the cage or frame. Must be less than 5 years old. If the SFI tag is not present or is not legible, the belts will be deemed illegal.
A window net with quick release is required. It may be mesh of ribbon type. No sprint car nets.
Numbers must be 24” high and 4” wide on both sides of the car, and 24” tall on the roof and positioned so it can be read from the passenger side. Cars must be painted and numbered neatly and to be seen easily by the score keepers. The number on the roof is the most important. Reflective vinyl is NOT recommended for roof application due to the poor read ability. All numbers should be of different color than background.
Helmets must be full face Snell 90 or newer and must have Snell sticker clearly visible inside the helmet. Snell ratings of M90, M95, M00, SA90, SA95, and SA00 are legal. If the Snell rating tag is not visible or legible, then the helmet is not approved for racing.
All drivers are required to wear driving suits that are made of fire retardant material that effectively covers the drivers body, (multi-layer recommended). Neck brace is MANDATORY. Driving gloves and shoes are strongly recommended.
Protest must be made before a feature in writing by driver ONLY!!!!! See tech official.
$75 valve cover removal and inspection or $150 head removal and inspection. $100 to the driver and $50 to the points fund. Rules are subjected to change at any time. Any rule infraction will be addressed and final ruling made by Battleground Speedway Tech personnel.
Outlaw Modifieds Rules
We will be implementing USMTS rules. (See USMTS rule book)
Outlaw Classic Dwarf
BODY REQUIREMENTS AND SPECIFICATIONS
1928-1948 American-made production vehicles only. Body must be 5/8 scale, stock appearing two-door sedans, coupes, or pickup trucks. These are known as Outlaw Classic Dwarf Cars. (The intent is to have classic appearing cars from the 1928-1948 era (MAKE IT LOOK OLD).
Cars must pass freely through a hoop 60-1/2” wide (with the exception of the nerf bars) by 50” high. 73” wheelbase (plus or minus 1”)
No car over 50” tall, top to ground. Body height maximum 44”, bottom edge to top (including frame rail).
Maximum body width 40” (left side kick out ok), all tires must be outside of body line.
Maximum frame width 34”, minimum 30”.
124” maximum total length, bumper to bumper.
1240# minimum weight with driver after race.
Must have grill, any material. The grill must stand between 80 and 90 degrees in relation to the frame.
Doors, windows, and cowlings must retain stock appearance. Hood louvers allowed for cooling but must maintain stock contours. Lexan in rear side windows is illegal.
Engine compartment must conform to scale and match contour of body. Hole may be cut for breather clearance only. Ram air induction system prohibited.
Must have closed trunk lid or fully enclosed trunk access panel conforming to original body lines. Louvers allowed no holes.
No wings or spoilers. Pickup trucks allowed a 3” lip on bed.
Body will be metal construction, 26-guage steel or .040” aluminum minimum.
NO open top cars (roadsters, convertibles). No panel trucks, station wagons, or specialty cars.
Roof hatch entrance allowed.
Frame ride height must not let car bottom out on track.
Fasteners on hood, trunk, or panels must be positive, locking type.
Kick outs or side Nerf bars must be mounted at three points 1-1/4” max. .125 wall thickness. Cannot stick out beyond 1” from the side of the tire. (It is recommended that all nerf bars be 1” outside the tires.)
Max roof rake of 8 degrees.
Body requirements and specifications
1000cc, must be at least 2 years old (i.e. 2008 legal in 2010). Competition Director reserves the right to grandfather in any motor run in 2011 at Battleground Speedway.
Must remain stock bore and stroke, stock rods, pistons, and cams.
All head components must remain stock. Cams must be stock as per original equipment manufacturer (OEM) and must meet specs as per manufacturer.
ONLY OEM stock ignition system with OEM ECU box may be used. Fuel monitoring/control devices allowedl TFI, Power Command 3 and 5 are the only boxes allowed. At no time will any cord be plugged into the usb ports. (This is to monitor fuel only)
Engine must retain it's stock fuel induction system. May run after-market air filters/headers/oil pan.
Secondary butterflies may be removed.
No adjustable after-market cam sprockets must be in the stock mounting round holes. Must present a copy of the cam page and bore and stroke specs from the US tech Service dealer manual for the year and make of your motor to Charlie Armstrong within 4 races. You can obtain this form from any dealer. You can check with him to see if he already has this information.
The intent is for all injected motors to remain stock.
Bypassing gear selector is illegal. (i.e. to have a resistor in the harnesss to make the motor appear to be in fifth gear).
No after-market spark or timing advancers. (ANYONE CAUGHT MODIFYING TFI, POWER COMMANDERS, OR WITH AN AFTERMARKET SPARK ADVANCER/RETARDER WILL SERVE A 1 RACE SUSPENTION AND THE PART WILL BE CONFISCATED. ANYONE CAUGHT WITH TRACTION CONTROL WILL NOT BE ALLOWED TO RACE THE REMAINDER OF THE SEASON, INCLUDING CAR AND DRIVER!)
Carbureted motor specifications
1250cc (+1%) maximum , this will be on any motor 2001 or older.
No engine can be modified to be less than original stock configuration OEM specifications.
After-market electronic engine components allowed (i.e. dyna).
Carburetors and cams optional.
Carburetor boot must fasten directly to head in the stock intake port location.
Header must attach directly to head in stock exhaust port lacation.
Oiling system may not include a dry sump system.
Motor must have been intended to run carbs, no converted FI engines..
No port and polished heads.
“General Motor” Specification
Four cycle, four cylinders maximum only. Must have working transmission, clutch, and starter will all parts in place. Complete clutch assembly must remain in engine. External reverse boxes allowed. No air-controlled shifting devices.
Charging system optional. Battery powered ignition system only. Alternator cover allowed.
No auxiliary starters.
Engines must be front mounted in engine compartment.
Engine setback: The “square of the engine” (rear fins of the jugs) may not exceed rearward more than 17” from the center of front spindle. No part of the engine or transmission may extend rearward more than 21” from center of front spindle.
No after-marketfuel injection and no turbos. No nitro or nitrous oxide. OEM fuel injection must remain stock.
Engine must be cooled by original intent. May use extra fan or oil cooler.
ECU or Brain box must remain stock. NO FLASHING (see protest section for claim rule)!
Engine exhaust must include a muffler and exit rearward. All muffler devices must include baffles. MUFFLER IS REQUIRED BY BATTLEGROUND SPEEDWAY. Anone asked to replace the muffler by the track or the tech crew will have to replace prior to the next race.
Prior to racing you must fill out a class registration sheet ($5 going to a class fund) with chassis make and engine make, year, model, and serial numbers for your motor. Any time you replace a motor, this information must be updated.
Engine Tech Procedures
Cylinder cranking compression maximum 220 p.s.i. Or as per the stock US version tech service dealer manual, per cylinder average of 4 cylinders, no variance after (10) compression revolutions of cranking, 15-45 minutes following feature event.
Carburetors or fuel injection and all 4 spark plugs must be removed before checking compression.
Battery and Fuel system
Battery and fuel pump must be mounted outside driver compartment. Battery must be secure and held with non-rubber strap. Electric fuel pump allowed.
It is recommended but not required that a direct manual cutoff switch wired to ground circuit be located over the right shoulder of the driver.
Fuel cell mandatory, 5 gallons, located in trunk.
Flapper valve, aircraft style cap or 2” fill neck recommended.
Gasoline or racing fuel, no alcohol or fuel additives allowed.
Reinforced or steel braided line must be used in all high-pressure areas.
Quick changes allowed. They will be teched each week.
Gear set #1, gear set #2, gear set #3 high only, gear set #4 low only, gear set #5.
Rear ends must be locked either welded, full, or mini spools. No limited slip.
Must use steel drive shaft, must be painted white. Min 2-1/2” x 0.083” or 2” x .120”
Drive shaft tunnel must have minimum or 2 (3 recommended) 360-degree hoops between firewall and seat back. Must be made of at least .1875 x 1-1/2” steel bar.(1” x .095” steel tube highly recommended). No changing gears between heat race and feature. (If you suspect you have a broken gear a tech crew must be present prior to opening cover or removing gear)
Main frame members will be minimum of 1” x 2” x 120” wall rectangular steel tubing only. Main frame rail consists of the length between the front lower a-arm cross member and the rear main roll bar upright. No aluminum allowed in cage or frame.
Main frames will have a minimum of 3 cdross members between firewall and back of seat fabricated of same material as frame rails. Alternate material may be steel angle. Minimum .125” x 1.5” x 2” cross-bracing in floor under driver strongly recommended. Real frame rails at real roll bar must be 34” maximum and 30” minimum outside dimension.
Rear roll bar must meet same dimension as the frame it is mounted to. Frame may taper forward of driver seat area.
Front engine area frame width must be 24” max and 20” minimum outside dimension. Left and right frame rails must be the same plus or minus 1/2”.
Roll cage must be DOM steel minimum 1.225” x .083” (.095 recommended) in all cars manufactured after 12/1998. clubs may grandfather older cars with 1” x .065” tubing. Cross-brace or diagonal strongly recommended in hoop over driver's head.
All cars must have cage bars installed across door openings on both sides Bars should be welded in place as part of roll cage. Minimum size 1” x .065” (1.25” x .095” recommended ). Cars with bars mounted on doors should have full doorframe and minimum of 2 horizontal cross bars. Minimum 1” x .083”. Cars with bars mounted on doors must have 1/4” x 2” steel stops welded in on each side of opening, totaling a minimum of 4” on each end of door.
If driver's door is operations, it must be equipped with a secure latch. A driver's door is not required but driver must be able to fit through the window opening. If no door, you MUST have a roof hatch.
It is required to have a steel bar with a minimum size of 1” x .065” from doorpost to doorpost under the dash.
Steel plate on driver's door bars recommended.
It is recommended that if using rivets, body panels attach to tabs welded onto cage instead of drilling multiple holes into cage bars.
No down tube frame cars allowed. Any bars going from cowl area to snout must remain below the upper line of the hood.
Classic pickups may have two (2) bars going from upper rear roll cage down to rear clip.
All cars must have minimum 1” under slung from back of seat to the rear bumper mount.
Front suspension must not extend rearward past the most forward panel of the firewall.
Aluminum spindles allowed.
Rear trailing arms outside of frame may hbe a maximum length of 24” center of the rear end to center of forward heim.
No limit on the length of the trailing arms mounted inside of the frame rails.
Torque absorbing devices are permitted.
Maximum 3 radius rods or 3 link suspension.
Wheel offsets are allowed.
Hub offsets are not allowed. Hubs front and rear must be within 1/2” distance from main frame rail on either side of the car, measured from the center of rotor to vertical plane of frame rail.
Coil-over shocks are the only allowable means of supporting the chassis. One shock and spring per wheel only. Shock and spring must remain as one unit.
Steel body shock, non-adjustable type, 7” maximum travel.
No driver shall have the ability to adjust suspension from inside car.
Straight front axles are prohibited.
No leaf springs.
No birdcage-type rear linkage.
No anti-roll (sway) bars permitted, front or rear.
No torsion bar suspension system of any type allowed.
Brakes and steering
All steering components must have safety fasteners such as cotter pins or self-locking nuts.
Manufactured quick-release steering wheel hubs mandatory.
2 working brakes required (4 recommended). May cap off right front brake line on dirt.
Steel rotors mandatory, .250 minimum thickness.
Steel OEM calipers or aluminum calipers.
Cutting & scalloping of rotors will be allowed with no rotor surface being less than 3/4” in width.
Drilling of rotors is permitted.
Adjustable brake bias and wheel shut offs allowed.
Competition-type master cylinders allowed.
Tires and wheels
The Goodyear G45 or G50 are the only legal tires. Hoosier or street tire 205, 215, 235, all must meet 45 duro.
No grooving or siping allowed. Grinding ok.
All tires must duro 45 before the race.
No puring water, ice, etc. on tires to meet min. duro.
Steel wheels only 13” x 8” maximum width, bead lock rims ok.
Fire extinguisher B/C type required in your pit area.
SFI rated fire retardant suit, fireproof gloves and shoes required.
Snell sa2000 full face helmet required (no motorcycle helmets)
Window nets, arm restraints, and head and neck device recommended but not required.
High back aluminum racing seat mandatory.
Car must be equipped with a 5-point harness, minimum 3” belts, no more than 3 years old.
No mirrors or two-way radios allowed.
*in addition, you will be required to meet all track safety rules and requirements
BATTLEGROUND SPEEDWAY REQUIRES RACEIVERS
All cars will be teched before they are allowed to race at Battleground Speedway. If found illegal in a way that is not considered a safety hazard it will be up to the Battleground Speedway or Dwarf car officials on hand to make the decision for that particular night.
Only tech official, the driver, and 1 crew man from each car being teched allowed in tech area. NO EXCEPTIONS.
The top five each night will report to the sales, top 5 to tech. In addition, any car can be asked to go through tech at any time. Top 3 will draw from a bag for what is to be tech that night. The Director and the Head of Tech have the right to tech anything at any time on any car, before , during, and after the races. This will be done without question. Any refusal of tech will be a 1 race suspension, no money, and no points.
On-track damage to car will be considered on a case-by-case basis by the class officials.
The general rules are as a guide line. The Competition Director, Assistant Competition Director, and tech crew will make judgment calls on any item not clearly described in these rules on a case-by-case basis.
If you are disqualified, NO MONEY, NO POINTS.
Tech crew will consist of 5 tech men, one Competition Director, and one Assistant Competition Director. Competition Director will have the final say on all disqualifications. Track manager will have the final decision on all track racing, lineups, and scoring.
Protest rules: Protester must notify officials in writing within ten minutes after the feature event with car number and item to be teched. There will be a judgment on the item that is being protested (i.e. We are not going to pull a motor apart at the track). Protest fee will be $100.00 if the car is found legal, the protested car will receive $75.00 and the class fund will receive 25$. If the protested car is found to be illegal, the protester will receive $75.00 back. Protester must be specific on what is being protested. The $100.00 fee is for 1 item only. CLAIM RULE ON ECU/BRAIN BOXES: To claim a box you must present a matching box for make, year, and model of the box you want to claim and $125.00 to the Competition Director. Once the swap is made and motor starts and runs, the Competition will hold on to the box for 2 races. After the 2 races, the box will then be the property of the person who made the claim and $100.00 will go to the person the box was claimed from, with $25.00 going to the class fund. (Reason for the hold is to ensure the replacement box is working properly.)
Conduct: ALL DRIVERS ARE TO PRESENT THEMSELVES IN A PROFESSIONAL MANNER. FIGHTING, ARGUING, OR VERBAL ABUSE OF ANY OFFICIALS OR OTHER DRIVERS WILL NOT BE TOLERATED! ANY DRIVER FOUND GUILTY OF THESE INFRACTIONS WILL FACE A 2-RACE SUSPENSION ALONG WITH A $100.00 FINE THAT WILL BE PUT INTO A GENERAL FUND. ANY DRIVER PRESENTING UNSPORTSMANLIKE CONDUCT WILL BE SUBJECT TO A $50.00 FINE (i.e. SPEEDING THROUGH THE PITS, VULGAR GESTURES TOWARDS OFFICIALS OR OTHER DRIVERS, DOING A BURNOUT AFTER AN OFFICIAL MAKES YOU GO TO THE BACK, ETC.)
No pulling out of formation before the green on starts and restarts. (All cars must remain in tight formation)
Drivers must be 16 years of age with the exception of a 14 or 15 year old that has 1 year of previous racing experience. Anyone under the age of 17 will have 2 yellow streamers out of the rear of the car for the entire season.
The Director has the authority to make a ruling on a case-by-case basis.
Rookies must start in the back of the field for the first 3 races, and must have yellow streamers out the rear of the car. (Rookie will be considered anyone with no racing background or very little racing background.) Director has the authority to waive this rule or to add more races to a driver.
No duplicate car numbers or letters allowed.
Competition Director: Shaun Abney (832-) 566-6991
Assistant Director: Steve Dixon
Tech Crew: Charlie Armstrong (Head of Tech)
Willie Veach Jr.
INTENT: The intent of Dwarf cars is to provide low-cost, safe racing for all. Anyone that tries to circumvent the rules will be asked to change. We reserve the right to change the rules at any time for safety reasons.
DISCLAIMER: Just because it doesn't say it in the rules does not mean it's legal. Before you do it, check with the tech crew and Competition Director for approval.
Limited Modified Rules
Mid-sized GM 1978-1987 metric full frames only with 108” wheel base as per OEM specifications of stock. All frame bolt holes must remain in stock location. Wheelbase will be checked with a minimum of 107” and maximum of 109”. Frame must be full and complete, cannot be widened, narrowed, shortened, lengthened, or be cut, bent, or altered to change suspension brackets, except upper control arm brackets on front end. Frame may be cut for radiator clearance. Frame may be cut for seat clearance. Transmission cross member mounts may be removed, no further forward than the frame welds. Rear of frame, behind upper shock mounts, may be replaced with round, square, or rectangular tubing. No part of frame may be lower than 5” from the ground except front crossmember. No other frame alterations allowed.
2350 lbs. minimum
Racing fuel cell required, maximum 22 gallon capacity. Must be minimum 20 gauge steel container. Must mount with minimum two solid steel straps around entire cell, two inches wide and 0.125 inch thick, between frame rails and behind rear axle. 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. No part of cell may be lower than protective tubing. No regulators, bypass fuel systems, pressurized, or return lines allowed. No cool cans. Any air cleaner is allowed. No cold air boxes or ducting of any between engine and hood. Mechanical OEM type push rod fuel pumps only. Note: Must use naturally aspirated, unaltered 500 c.f.m. Holley part #4412, may be modified to Holley HP Dorton part #0-80583-1 specs only. Carburetor must pass a “go-no-go gauge” test. Maximum 0.100 inch thick carburetor gaskets allowed on all engines. Float bowl must face forward. Any adapter, maximum 1” 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.
Block: OEM steel passenger vehicle production block only. No GM bowtie, Ford SVO or Chrysler W-2 components allowed. GM approved blocks: 283, 302, 305, 307, 327 and 350. No big blocks. Only 260, 289, 302, and 351 blocks can be used for Ford. No big blocks. OEM only. Only 273, 318, 340, and 360 blocks can be used for Mopar. No big blocks. OEM only. No Hemis. Maximum cubic inch limits: GM 364, Ford 363, Chrysler 370, no tolerance. All casting numbers must remain on blocks. No side bolt main blocks allowed.
Any flat top or dish pistons allowed, no gas ported pistons.
Compression may not be over 180 lbs. per cylinder on any cylinder. Tracks discretion on cylinders checked. No tolerance.
3.48-inch maximum GM stroke.
Decking block okay.
OEM blocks okay. No dart or after market blocks. No aluminum. Cylinder sleeves okay. Polishing lifter galley okay.
Stock OEM rods, or (stock appearing- no light weight and must be of “I-Beam” type). No aluminum. Chevy = 5.7” length maximum rods.
OEM cranks only, steel or cast. Will allow stock appearing cast crank-shafts. Crank shaft cannot be lightened, no aerowing, bullnose, knife edge, undercut or drilling of second or third rod throws allowed. Must be stock stroke for engine used.
After-market rod, main and head bolts or studs allowed. Push rods may be any length.
Stock or circle track pans allowed. No dry sumps. No accu. Sumps.
Fluid dampener harmonic balancers are allowed. No roller rod, main, or cam bearings.
Cast iron water pumps only, except Ford and Mopar may be aluminum. OEM type only. Mechanically belt driven only!
Intakes must be unaltered, approved OEM cast iron low rise, two, or four barrel. Only unaltered (no porting or polishing) aftermarket aluminum intakes allowed are: Weinand GM #7547, #7547-1; Ford #7515, #8023, or #7516; Chrysler #7545, #8022; Edelbrock GM #2701; Ford #7121, #7181, #7183; Chrysler #2915.
Cooling lines are allowed on intakes.
No Brezenski, porting, polishing, acid dipping, or anything similar allowed. No hi-rise.
After market starters okay. Must mount in front of bellhousing.
Power steering pump and reservoir must be a one-piece unit. Must mount in front of engine.
Steel side engine mounts may be of the 45 degree style or stock style.
Engine mid-plate is allowed and may be aluminum.
Any brand of air cleaner is allowed. No forced or RAM air allowed.
3.48 stroke maximum for Chevy. Balancing okay.
Engine displacement can be checked by pump even on protest.
Oil filters must attach at factory specs. No Oberg, etc. U. Polydyne coating or similar allowed.
Must have 1” sight plug in oil pan between the second and third pan bolt on the drivers side. Must not have any obstructions to crank and rods.
May use GM crate motor #88958602, or #19258602. Upon inspection, any different, altered, or missing GM seal bolts will result in disqualification for a period of remainder of season. GM seal bolt exception is IMCA approved and issued cable-lock rebuild system, and oil pan may be replaced by IMCA certified builder with Kevko pan #1090NRHw/ISP and Kevko pick-up #1003-3/4. Must use required spacer, distributor, rev limiter, pushrods, valve springs or rocker arms. Certified rebuilder will be determined by Battleground Speedway.
Conventional flat tappet cam and lifters allowed, cannot alter lifter bores. OEM firing order cannot be changed (GM: 1-8-4-3-6-5-7-2). No maximum lift. No vacuum rule. Must be chain driven, no gear/belt drives.
Steel only. GM OEM approved head numbers are (last 3 digits): 126, 185, 336, 441, 445, 487, 487X, 493, 598, 624, 862, 882, 920, 993, 997, with valve no larger than 1.94 inch intake and 1.50 inch exhaust. May use Engine Quest (EQ) Stock replacement (SR) cylinder head, GM part #CH3501, Chrysler part #CH318B; head must be as produced, seat angles and valve sizes cannot be changed: three angle valve job only (absolutely no casting removal in valve pocket of EQ head, for any reason). No porting, polishing, or unapproved alterations to ANY cylinder head. Any cast iron OEM Ford and Chrysler heads allowed with valves no larger than 2.04 inch intake, and 1.70 inch exhaust. Headers must bolt directly to heads with correct numbers. No vortec, bowtie, SVO, W-2 or aftermarket heads allowed. Guide plates, screw-in studs, and polylocks are allowed. No stud girdles. Steel roller tip rocker arms are allowed. Chrysler may use OEM rocker arm bars. Any length push rods allowed. OEM diameter springs (GM-1.250 inch maximum O.D.). NO ALUMINUM OR TITANIUM PARTS ALLOWED!
Back of entire flange must be mounted at a minimum of 70” forward of the centerline of the rear axle. This will be measured on the passenger side of the car.
Minimum engine height is 11” from the ground to the center of the crankshaft. This will be measured on the front of the crankshaft/pulley.
No unapproved transmitting or listening devices (exception is one-way RACEreceiver radio by officials), or timing retard controls. No electronic monitoring computer devices capable of storing or transmitting information except memory recall analog tach. 12 volt ignition system and OEM HEI style ignitions only. Ford/Chrysler may use HEI distributor. No crank triggers. Any module that fits inside distributor with no alteration allowed. Crate engine must use original HEI distributor with MSD #8728 rev-control and 6200rpm chip. Rev-control must be out of reach of driver, but accessible for inspection with rev limiter facing upward. No ignition boxes, remote coil or accessories. All wiring must be visible for inspection. OEM type alternator with internal regulator allowed. No electronic traction control devices.
Only (1) 12-volt battery is allowed and must be securely mounted. Subject to tech inspection. Battery may be charged by an alternator.
Headers- any 1 5/8” tube 4 into 1 with 3” collector one piece header. No 180 degree or step header must bolt directly to the head with no modifications or adapter.
Chrysler may use #451, 461.
Ford may use #351, #361, #562, #562-4B.
Only (1) radiator is allowed. It may be aluminum. Radiator must be mounted in front of engine. Maximum size; 27” X 19”.
Racing radiator cap is allowed. Electric coolings fans are okay. May not have water outlets to spray on radiator. Catch cans required.
Gasoline only. No oxygenated or other performance enhancers. No alcohol or nitrous. Racing gasoline allowed.
Drive Train- Transmission:
Any OEM automatic transmission is allowed. Must have a working torque converter, minimum of 10”. No direct drives, couplers, valved pumps, or bleeder style valve bodies. Automatics must have at least (1) forward gear, and reverse gear must be in working order. Ford may use GM or Ford automatic. Mopar may use GM or Mopar automatic. Chevrolet must use GM automatic. Stall converters okay.
Standard transmissions must be stock with all gears in working order, with minimum of 10.5” clutch, pressure plate and steel flywheel. No mini-clutches. May not use aluminum flywheel. Ford clutch is 9” minimum.
All standards must have bell housing made of ¼” thick steel or cast iron and cover 180 degrees over the sides and tip of the clutch assembly. Slave cylinders or hydraulic throw out bearing okay.
3, 4, or 5 speed manual transmissions only, OEM only. No Bert or Brinn type transmissions allowed.
No ram couplers.
Quick change transmissions or transmission adapters for gear change are not allowed.
Car must be self-starting and have working neutral, reverse, and forward (with engine running and car in a still position must be able to engage car in gear and move forward, then backwards).
Transmission fluid coolers are allowed.
No aluminum converters. Flywheels and converters can be checked with magnet. Converters can be checked by moving car forward and backwards to check stall.
Cars MUST idle in all gears.
Drive shafts must be steel, and must be painted white or silver. Must have steel drive shaft loop (360 degree) connected to the frame located within 6” of the front drive shaft u-joint. Minimum size is 2” X 1/8”.
Rear end housing must be stock 7.5” GM 10 bolt. Bracing optional. Snouts on end of 7.5” rear end can be modified to accept 9” Ford axle. Stock mounts on lower trailing arms must remain in stock location on original 7.5” tube housing. No 3” tube from center section out to mounts on trailing arms. After-market axles, studs, and mini-spools are allowed. No posi-trac, limited slip style rear ends. Rear end axles must be locked together at all times. C-clip eliminators are allowed. Cups may be placed on housing for springs only.
Any gear ratio may be used, if no alteration to housing is required.
Bolt pattern on the axle/drums may be changed. Pinion angle may not be altered. No full spools, Gold Track, or aluminum spools of any kind. Stock width unless using Ford axles. If Ford axles are used, rearend must not be narrower than stock nor more than 3” wider.
C-clip eliminators and disc brakes are allowed and recommended to eliminate axles from sliding out.
No floater rearends of any type. No 9” Ford or 8.5” rearends allowed. 7.5” only.
Pinion angle cannot be changed.
Single or dual master cylinder after market brake pedal is allowed, or dual pedal with adjuster okay within driver’s reach. Rear brakes must be drum or disc up to 12” disc brakes. Steel only. Hats and steel rotors are legal on rear ends only. Hats must be steel. No single phase rotors allowed.
Minimum of (3) working brakes is required. If using (3) brakes, the fourth brake components need not be present. Wheel shut-off valve must not be in driver compartment. Spindle must remain unaltered.
Cooling holes may not be drilled in any brake components.
No aluminum brake components allowed.
Quick release steering wheel is mandatory.
Quick steer is optional. No chains or sprockets allowed in the steering system except D & M quick steer.
Steering left of drive train only. This means drive shaft.
Bump steer cannot be adjusted. Center link, inner tie rods, outer tie rods, or sleeves cannot be altered (must be OEM and in OEM stock location).
Power steering is allowed. Steering pump and reservoir must remain one unit.
No rack and pinion steering. Stock OEM steering gear box must be used. May not be moved.
Idler arms must remain in stock location.
IMCA TUBULAR UPPER CONTROL ARMS WILL BE PERMITTED (steel only and must be IMCA stamped, non-adjustable).
No traction control of any type.
Upper control arm brackets may be moved for caster and camber adjustment. Can not move lower A-frames. Must use stock lower control arms and brackets. Upper mounts may be modified, but must remain stock material.
Upper and lower control arm bushings may be after-market.
Sway bars (may be removed) and brackets must remain stock. Bushings may be after-market.
Racing springs are allowed. Steel only. No coil-overs. No jack bolts allowed.
Adjustable spring buckets are allowed. May drop rear spring buckets as long as they are in stock location.
Spindles and rotors must remain stock for 1978-1987 metric frame w/108” wheelbase. Ball-joints must remain stock appearing (may be welded in). no grinding or lightening parts. Bolt on spindle savers are legal.
No welding on spindles. Reaming spindles for ball joints okay.
No drilling cooling holes in rotor. 5’8” studs are allowed in any bolt pattern.
All four rear trailing arms must retain stock arms for metric frame used. Must remain stock in length. Must not compress or lenthen. Arms may be boxed or strengthened. Lower spring cups must be centered on housing.
After-market bushings may be used. No spherical or ball bearing or Timken bearings anywhere on the cars suspension.
No suspension parts may be altered or lightened.
No aluminum parts allowed, other than bushings.
Each trailing arm must have bushings installed and in good working order.
Lower A-frame mounts may be notched for clearance.
Shocks must be steel. Must use stock type shock ends. May weld or screw stock ends on shocks.
The stock shock frame mounts must be used in the original stock location.
One shock per wheel. May use spacers when mounting shocks.
Air shocks not allowed.
Main roll cage must consist of continuous hoops not less than 1 ½” X 0.95”. All welds must be complete. No brazing or soldering. No part of main cage may extend forward past rear motor plate. The main roll bar must not attach to the frame rearward of front edge of the rear tire.
Main roll bar and halo must be a minimum of 1” above the drivers helment.
A minimum of (3) drivers door bars, and (2) passenger side door bars is required.
(4) bars, two per side, may extend from the main roll cage to the points on the main frame in front of the upper control arms.
(6) bars may extend from the main cage to the rear, X-bracing is allowed.
Door plates are MANDATORY (minimum 4” X 12”).
Cages must be steel or chrome-moly.
One single nerf bar between the front and rear wheels on each side of the car is allowed. Maximum size= 1 ½” X 0.95”. They are to be attached to the cage at the front and rear sections of the nerf bar. No center supports are allowed on the nerf bar. Neft bars may not be outside of tires. All bumpers and nerf bars must be capped.
Minimum of (3) windshield bars 5/16” in diameter is required. Must be mounted in front of driver.
Must use unaltered Hoosier ‘H500’ Race tire, IMCA stamped or not. 27 by 8 by 15, or 26.5 by 8 by 15 ‘stagger tire’ is allowed. No 27.5 allowed. 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. Any offset allowed. 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. Steel bolts only. Foam type or plastic outer mud cover allowed on right side wheels. Inner mud cover allowed on left rear only. No bleeder valves. Must use minimum one inch O.D. steel lug nuts and 0.625 inch studs are recommended. No wheel spacers allowed with OEM studs. Wheel adapters are treated as spacers and may be aluminum, maximum 1.50 inches thick.
Oil and transmission fluid coolers are not allowed in drivers compartment. Floor in drivers compartment must be complete; therefore, there must be a floor pan under the drivers seat.
No upholstery allowed, other than drivers seat cover. No plastic in drivers compartment.
Roof rear sail panels are allowed one 90 degree bend along the top edge of the sail panel, but must be less than 1” wide. No Gremlin style roofs.
No more than 6” of total rake allowed on the body deck. A maximum of 3” of rake (of the 6” total) is allowed in the door section and a maximum of 3” of rake is allowed in the quarter panel section. If you keep the door section level, then you are only allowed 3” of rake in the quarter panel section.
Minimum ride height is 5” from ground to side frame rails.
Plastic body panels and plastic filler panels are not allowed.
No convertibles, unless special race.
Cars must have full deck interior from one side of the body to the other. Decks must be aluminum or sheet metal.
Quarter panels must be 90 degrees to the ground, with a maximum of a 45 degree bend 4” from the bottom of the doors and quarters and 2” on top.
Must be metal or aluminum sized holes for throttle, etc. Firewall must be sealed from engine compartment.
Must be metal or aluminum. Must cover entire drivers cockpit to front edge of seat.
(2) bar front bumper is mandatory. Maximum size is = 1 ½” X 0.95”.
One single bar rear bumper is required. Maximum size is = 1 ¾”. The required fuel cell protection bar (maximum size = 1 ½” X 0.95”) may be attached to the rear bumper.
Must cover completely the top of engine and radiator.
Must extend from the nose piece to the deck.
Hood may be made of metal, aluminum, or fiberglass.
Hood must provide a seal to the top of the engine compartment.
Cannot cover side of engine more than 5”.
Hood scoops okay.
Hood must level or sloped down at front, enclosed and flush with interior deck at rear (no reverse hood rake allowed).
No dished roofs allowed.
Rear spoiler is allowed, with a maximum height of 8” from the deck to top, not straight up and down. A maximum of (3) braces are allowed, one on each side, measuring a maximum of the angled height of the spoiler X 24” long. Only (1) spoiler is allowed. Aluminum or lexan okay. Spoiler may not go beyond back bumper. NO SPOILER ON ROOF.
Driver Restraint System Seat:
Aluminum racing seats with right side rib protection required. A seat that provides both left and right sight rib protection is recommended. Seat must be securely mounted. The racing seat must be bolted to a reinforced cross member and bracket(s). This cross member must be welded to the roll cage, not just to the floorboard. The back of the seat must be supported and bolted to a flange that is connected to the cage.
Racing type 5-point seatbelts are mandatory. All 5 belts must be fastened while driver is in car and on racing surface. Must be securely mounted with ½” bolts and tabs welded to the cage or frame. Must be less than 5 years old. If the SFI tag is not present or is not legible, the belts will be deemed illegal.
Window nets are mandatory. It may be mesh or web style. Sprint car cage net is allowed. A quick release window net system must be used.
Must be an approved racing helmet in good condition. Neck brace is mandatory 360 degree or horseshoe style.
Driver suit (fire suit) mandatory, may be (1) or (2) piece, must be complete and be of fire resistant material and in good safe condition. Fire resistant driving gloves and shoes are recommended.
Definitions: O.E.M. unaltered unlightened, Ford does not make OEM parts for GM and so on.
Stock: OEM part. If it needs an adapter it’s not stock.
All rules are subject to change at any time. Any rule infraction will be addressed with results found and final ruling being provided by BGS tech Official.
1. Any domestic front wheel drive vehicle except Dodge Neon.
2. 3.1 liter engine maximum
3. Factory automatic transmission.
1. Any import front wheel drive vehicle with four (4)doors.
2. 2.5 liter engine maximum
a. No Twin Cams allowed
b. No V-Tecs allowed
3. Factory automatic transmission
General Rules-Applies to All
All registered ecostocks have signed below indicating they fully understand all rules and regulations, no exceptions.
For additional information and questions contact Brad Dixon 713-894-3748