Shelby County Speedway

THESE RULES ARE UPDATED ON

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THE RULES AND OR REGULATIONS SET FORTH HEREIN ARE DESIGNED TO PROVIDE FOR THE ORDERLY CONDUCT OF RACING EVENTS, TO ESTABLISH MINIMUM ACCEPTABLE REQUIREMENTS FOR SUCH EVENTS. THESE RULES SHALL GOVERN THE CONDITION OF ALL EVENTS. NO EXPRESS OR IMPLIED WARRANTY OF SAFETY SHALL RESULT FROM PUBLICATION OF OR COMPLIANCE WITH THESE RULES OR REGULATIONS. THEY ARE INTENDED AS A GUIDE FOR THE CONDUCT OF THE SPORT AND ARE IN NO WAY A GUARANTEE AGAINST INJURY OR DEATH TO A PARTICIPANT, SPECTATOR OR OFFICIAL.

IF RACING ALL YEAR - $500 TO WIN THE 2011 CHAMPIONSHIP

RULES AND REGULATIONS DO APPLY

THE FIRST POINTS RACE IS MARCH 19

PROTEST

PULL ONE HEAD CHECK BORE, STROKE, LIFTER, CARB, AND HEAD $300

PULL OIL PAN, CHECK ROD AND CRANKSHAFT $400

COMPLETE TEAR-DOWN $500

TRACK TECH RECEIVES $50 OF PROTEST FEE FOR INSPECTING ENGINE.

TRACK OFFICIALS MAY GIVE TOLERANCES ON SOME RULES

TRACK OFFICIALS DECISION IS FINAL

MUST BE IN WRITING 10 MINUTES AFTER RACE, NO SPITE OR REVERSE PROTEST

SAFETY

FIRESUITS REQUIRED, GLOVES AND SHOES HIGHLY RECOMMENDED

ROLL BAR PADDING AROUND DRIVER'S HEAD AREA REQUIRED

5 POINT SAFETY BELTS REQUIRED

HIGH BACK ALUMINUM SEAT AND PADDING REQUIRED

WINDOW NET OR ARM RESTRAINTS REQUIRED

HELMET AND FACE PROTECTION REQUIRED

WORKING FIRE EXTINGUISHER REQUIRED

KILL SWITCH MUST BE CLEARLY MARKED AND IN EASY REACH OF DRIVER

ALL HOLES IN FIREWALL AND FLOOR PAN IN  DRIVERS AREA MUST BE SEALED

DRIVERS HEAD MUST BE BELOW TOP OF ROLL BAR

MUST HAVE MINIMUM OF THREE WINDSHIELD BARS IN FRONT OF DRIVER'S COCKPIT

THUNDER RULES                             

BODY:

MUST BE AMERICAN OEM STOCK APPEARING (EX. REGAL, MONTE CARLO, CAMARO, CHEVELLE OR FIREBIRD

STOCK STEEL BODIES. AFTERMARKET STOCK TYPE STEEL AND ALUMINUM BODIES ARE OK.

LATE MODEL BODIES ALLOWED

NOSE PANEL AND BUMPER COVER MUST MATCH BODY BEING USED         (FORD/FORD, CHEVY/CHEVY, MOPAR/MOPAR.

MUST USE STOCK OEM ROOF PANEL OR AFTERMARKET STOCK TYPE ROOF PANEL

ALL HOLES IN BODY AND FLOOR PAN MUST BE COVERED

MAXIMUM REAR SPOILER HEIGHT OF 8 INCHES.

SPOILER CANNOT BE WIDER THAN BODY.

ALL BODIES MUST MEET TRACK TECH APPROVAL.

BODY HULLING AND ENCLOSED COCKPITS OK.

FRONT AND REAR BUMPER MUST BE NO WIDER THAN BODY, NO SHARP EDGES.

TIRES

ANY MAKE ANY COMPOUND

ENGINES

ENGINE MUST MATCH BODY BEING USED (CHEVY/CHEVY, FORD/FORD, MOPAR/MOPAR)..

NO CID LIMIT

BLOCK MUST BE OEM WITH .060 MAXIMUM OVERBORE.

FLAT TOP PISTONS IN CHEVY AND FORD AND CANNOT BE ABOVE DECK OF BLOCK .

CRANK MUST BE OEM TYPE STEEL OR CAST WITH MFG NUMBERS IN PLACE. AFTERMARKETS OK.

NO LIGHTENING OF CRANK EXCEPT FOR BALANCING PURPOSES

RODS- ANY STEEL (I BEAM).

MUST MATCH BLOCK AND CRANK BEING USED.

CHEVY 350 STROKE - 3.480ROD LENGTH - 5,700 FORD 351. STROKE - 3.500 ROD LENGTH - 5.995 MOPAR 360. STROKE - 3.580 ROD LENGTH - 6.123.

NO DRY SUMPS ALLOWED.

HEADS

MUST BE STEEL OEM CHEVY BOWTIE, DART, OR WORLD PRODUCT. FORD SPORTSMAN, WORLD PRODUCT, OR DART CAST IRON HEADS ALLOWED A MAXIMUM VALVE SIZE OF 2.05 INTAKE/ 1.60 EXHAUST.

NO TITANIUM VALVES. STAINLESS STEEL PERMITTED.

NO TITANIUM RETAINERS ALLOWED.

NO PORTING OR POLISHING ALLOWED.

ROLLER ROCKER ARMS ARE PERMITTED.

FLAT TAPPET CAMS ONLY.

GUIDE PLATES AND SCREW IN STUDS OK.

MAY RUN GM PERFORMANCE 602 CRATE ENGINE

MAY RUN ANGLE PLUG HEADS.

INTAKE

ALUMINUM INTAKES PERMITTED.

CARBURETORS

750 CFM MAXIMUM                                                                                                      FUEL AND FUEL CELL

RACING GAS ONLY

FUEL CELL MANDATORY WITH STEEL OUTER SHELL

NO ELECTRIC FUEL PUMPS.

IGNITION SYSTEMS

STOCK OR AFTERMARKET IGNITION PERMITTED.

NO MAGNETOS.

BRAKES

ANY 4 WHEEL DRUM OR DISC SYSTEM ALLOWED.

AFTERMARKET DUAL MASTER CYLINDERS PERMITTED.

PROPORTIONING VALVE OK.

WHEELBASE

108 INCHES MINIMUM.

ENGINE MUST BE LOCATED SO THAT THE NUMBER 1 SPARK PLUG IS NO FURTHER TO THE REAR THAN THE BALL JOINT. 1" TOLERANCE.

FRONT OF ENGINE MUST BE IN FRONT OF CROSS MEMBER.

REAR END

OLD STYLE QUICK CHANGE OK.

STOCK OEM REAR ENDS OK.

FORD 9 INCH REAR ENDS ALLOWED.

FORD TYPE FLOATER REAR ENDS ALLOWED(NO BIRD CAGES)

WEIGHTS AND SUSPENSION

STOCK REAR SUSPENSION CARS MAY WEIGH 2900 LBS, ALL OTHER CARS WITH MODIFICATIONS TO REAR SUSPENSION 3100 LBS. CARS WITH GM 602 CRATE ENGINE WEIGH 2900 POUNDS.

NO COIL OVERS, COIL OVER ELIMINATORS ALLOWED. SHOCK HAS TO BE SEPARATED FROM SPRING WITH A 50 LB WEIGHT PENALTY. NO LIFT BARS. REAR COIL SPRINGS MUST BE MOUNTED ON TOP OF AXLE HOUSING MINIMUM OF 25 % OF SPRING MUST BE ON AXLE TUBE.

RUBBER BISCUIT OR SPRING PULL BAR ALLOWED. SPRING TYPE MINIMUM OF 5 INCH DIAMETER SPRING. 

ONE SHOCK ON TOP OF REAR END ALLOWED.

ALL SPRINGS MUST BE A MIN 5" DIAMETER, ONE PER WHEEL, ONE SHOCK PER WHEEL.

NO BIRD CAGES ALLOWED. ALL SUSPENSION MOUNTS MUST BE WELDED TO REAR AXLE HOUSING AND FRAME. NO FOUR BAR SUSPENSION. THREE BAR OR LEAF SPRING OK. PANHARD BAR ALLOWED, J-BAR OK MAY BE ATTACHED ON EITHER SIDE OF FRAME BUT MUST BE ATTACHED TO REAR AXLE ON OPPOSITE SIDE OF PINION (NO SHORT BARS)..

HEIM JOINTS ALLOWED ON TRAILING ARMS MAY USE STEEL OR ALUMINUM TUBES.

FLYWHEEL

STEEL OR ALUMINUM FLYWHEELS OK

CLUTCH AND TRANSMISSIONS

STOCK OEM TYPE TRANSMISSIONS ALLOWED.

BERT, BRINN TRANSMISSIONS ALLOWED.

MULTI DISK CLUTCHES ALLOWED.

FRONT SUSPENSION

FRAME OR FRONT CLIP MUST BE FACTORY OEM.

FRONT FRAME SECTION MUST BE FULL CLIP EXTENDING TO THE FIREWALL

REAR SECTIONS MAY BE FABRICATED FROM SQUARE TUBING.

FRAME MAY BE CONNECTED BY X-ING.

TUBULAR UPPER A ARMS OK.

OEM STEERING COMPONENTS ALLOWED.

RACK AND PINIONS OK.

UPPER CONTROL ARM MOUNTS ON FRAME MAY BE AFTERMARKET.

LOWER CONTROL ARMS MUST BE OEM FOR MAKE AND MODEL OF CHASSIS. NO ALTERING OF CONTROL ARMS OR CONTROL ARM MOUNTS.     A- ARMS AND SPINDLES MUST BE ON ORIGINAL SIDE OF VEHICLE. ANY TYPE SPINDLE ALLOWED.

UPPER A-ARM MOUNTS AND JACK SCREWS BE CENTER OF SPRING POCKET.

NO ALUMINUM STEERING PARTS EXCEPT QUICKENER AND STEERING WHEEL.

FRONT CROSS MEMBER CANNOT BE ALTERED EXCEPT FOR FUEL PUMP CLEARANCE AND MOTOR MOUNTS.

WHEELS

12 INCH MAXIMUM STEEL WHEELS ONLY.

WIDE 5 STEEL WHEELS WITH ALUMINUM ADAPTERS AND SPACERS OK.

STEEL BEAD LOCKS OK ON RIGHT SIDE ONLY.

TOW LOOP IS REQUIRED FOR WRECKER PURPOSES

STRAIGHT SIDED LATE MODEL BODIES, 50 LBS WEIGHT BREAK IF YOU RUN A HOLLEY 4412 CARB.