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TMSA Truck Classes-please check the driver rules for 2012 classes.
4/6 cyl class

Stock 4 or 6 cylinder gasoline motor

STOCK matching body and frame

Same height and width tires on all 4 wheels

DOT tires

17” of vacuum @ 1000 RPMS

Full exhaust

 

Street Class

No engine swaps, must have been available in the make and model

Big Blocks allowed in ¾ ton and heavier

All engines must pull 17” of steady vacuum at 1000 rpm’s to be checked by the track tech’s gauge. The track tech’s gauge will be the only gauge to check this rule

No aluminum heads

Aftermarket Aluminum (Dual Plane only) allowed

Engine must retain its original locations and mounts no motor plates allowed

Radiator, fuel cell and battery must retain its original location

Single OEM style carburetor must choke provisions, no predator or dominator carbs allowed

No fiberglass tubs or body panels

Must retain all interior components including passenger seating down to window cranks 

No solid axle conversions

If in a vehicle without a tip you must have a min of a 4pt rollbar

Helmet, seatbelt, and valid driver’s license

Must have 4 uncut DOT tires of the same height and width with stamp on sidewall

Must retain full exhaust and extend past cab, or passenger seating if in a SUV.

 

Hot Street Class

Big Blocks full size Vehicles only

All engines Must pull 15” of steady vacuum from the carb, or throttle body using the tech’s gauges

No Aluminum Blocks

No predator or dominator carbs allowed

No nitrous allowed all bottles must be removed

NO vacuum pumps

Open headers allowed, must be down and back

Aftermarket cast aluminum intake allowed no sheet metal or tunnel rams

No Solid axle conversions

Minor trimming allowed for tire clearance

Factory suspension for the make and model must be retained and in its original location

No fiberglass leafs or coilovers

Fixed ladder bars without floater or sliders

No trans-brakes or other staging devices allowed in vehicle

No two-step switches

Must have unmodified matching body and frame

No fiberglass body panels unless factory produced, modified or aftermarket direct replacement hood allowed ( if it doesn’t impair vision)

Factory type bed floor or min .092 carbon steel or 3/16” aluminum plate

Aftermarket seats and harness allowed

Must retain all factory interior and exterior panels (windshield, dash, front bumper, ect.)

Helmet Seat Belt Valid Driver’s license required

Tires must be uncut dot tires Same Height Tires, width may vary

No aluminum Heads or blocks

Uncut matching Body & Frame

 

Super- Street Class

BIG BLOCKS ALLOWED IN FULL SIZE ONLY

ENGINE MUST BE IN STOCK LOCATION

MOTOR PLATES ALLOWED (MINOR FIREWALL MODIFICATIONS ALLOWED ONLY ON BODY SWAPS)

AFTERMARKET CAST IRON BLOCKS ALLOWED (NO ALUMINUM BLOCKS ALLOWED)

CONVENTIONAL STYLE ALUMINUM AND CAST IRON CYLINDER HEADS ALLOWED (NO RAISED RUNNER)

WET SUMP OILING SYSTEM REQUIRED, EXTERNAL OIL PUMPS ALLOWED.

ANY VACUUM PUMP OR EVACUATOR SYSTEM ALLOWED.

SINGE CARBURETOR OR FACTORY EFI USING GASOLINE OR DIESEL ONLY

OPEN HEADERS ALLOWED MUST

AFTERMARKET CAST ALUMINUM INTAKE ALLOWED (NO SHEETMETAL OR TUNNEL RAMS)

ALL MECHANICAL FANS MUST HAVE A SECURED SHROUD

TIRES MUST BE UNCUT DOT

FACTORY STYLE SUSPENSION FOR THE MAKE AND MODEL MUST RETAIN FACTORY MOUNTING POINTS

NO COILOVER CONVERSIONS (FIBERGLASS SPRINGS ALLOWED)

SHOCKS MAY BE RELOCATED

STEERING MODIFCATOINS ALLOWED SUCH AS RACK AND PINIOn

LADDERBARS ALLOWED WITH FLOATERS OR SLIDERS

NO RACING STYLE THREE OR FOUR LINK SUSPENSIONS

NO SOLID FRONT AXLE CONVERSIONS

TRANSBRAKES AND TRANSMISSION MODIFICATIONS ALLOWED

OEM STYLE TRANSFER CASE REQUIRED NO AFTERMARKET CHAIN DRIVES ALLOWED

MUST RETAIN ALL FACTORY INTERIOR AND EXTERIOR PANELS (DASH, DOOR PANELS, FRONT BUMPER, ETC)

DIFFERENT YEAR BODY FRAME SWAPS ALLOWED WITH MID/SMALL TRUCKS RUNNING ONLY SMALL BLOCKS

WHEEL BASE MUST MATCH, MOUNTING MUST RESEMBLE FACTORY MOUNTS AND BE MOUNTED SAFETLY

MUST HAVE BEEN FACTORY AVAILABLE AS A FOUR WHEEL DRIVE

LEXAN ALLOWED IN ALL WINDOWS BUT ALL OPENINGS MUST BE COVERED(GLASS OR LEXAN)

MUST HAVE ALL FACTORY CROSS MEMBERS IN PLACE

NO FIBERLASS BODY PANELS UNLESS FACTORY PRODUCED (HOODS AND SCOOPS ALLOWED)

MINOR TRIMMING FOR TIRE CLEARANCE ALLOWED

GAS TANK AND BATTERY MAY BE RELOCATED (MUST BE SAFELY SECURED)

FACTORY TYPE BED FLOOR OR MINIMUM OF .092 CARBON STEEL OR 3/16” ALUMINUM PLATE.(TAILGATE NOT REQUIRED)

MAY REMOVE THE DOORS FROM CJ, YJ, TJ, SCOUT, 66-77 BRONCO AND 69-72 BLAZER.

VEHICLES WITH FACTORY REMOVABLE TOPS MAY BE REMOVED W/MIN. OF 4 POINT ROLL BAR PROTECTION

SAFETY RACING SEAT AND MINIMUM OF 5 POINT HARNESS REQUIRED

ALL VEHICLES MUST HAVE 4 POINT ROLL CAGE (MIN .093, 1.5 INCH STEEL TUBING). AROUND DRIVER.

(MUST HAVE ARM AND LEG RESTRAINTS SUCH AS CLOTH DOORS, NETTING OR SAFETY BARS IF DOORS ARE REMOVED

HELMET, AND NECK BRACE REQUIRED

ALL TRANSMISSIONS MUST HAVE NUETRAL OR CLUTCH SWITCH SAFETY SWITCH

ALL VEHICLES WITH ELECTRIC FUEL PUMP MUST HAVE MASTER BATTERY DISCONNECT ON REAR

ALL VEHICLES WITH TRANSBRAKE REQUIRE SFI CASE OR BLANKET/SHIELD

ALL VEHICLES MUST HAVE CHARGED FIRE EXTINGUISHER

 

Outlaw in mud only

No blowers

No nitrous

No paddles

Cut DOT tires allowed

 

CLASS THREE

ENGINE SET BACK CANNOT EXCEED 12” FROM CENTERLINE OF THE FRONT AXLE TO THE NUMBER 1 SPARK PLUG ALUMINUM SMALL BLOCKS ALLOWED

SINGLE CARBURETOR OR FACTORY EFI USING GASOLINE OR DIESEL ONLY

ALL MECHANICAL FANS MUST HAVE A SECURED SHROUD

BRAKES MUST WORK AT ALL FOUR WHEELS

ANY D.O.T. UNCUT TIRE

FRAME MUST BE CONSTRUCTED WITH A MINIMUM OF 2”X3” STEEL NO ROUND TUBE FRAMES

BODY MUST RESEMBLE A FACTORY VEHICLE

SAFETY RACING SEAT AND MINIMUM OF 5 POINT HARNESS REQUIRED 8 POINT ROLL CAGE (.093 DOM STEEL TUBING). AROUND DRIVER.

HELMET, AND NECKBRACE REQUIRED

FIRE SUIT REQUIRED

ALL TRANSMISSIONS MUST HAVE NUETRAL OR CLUTCH SWITCH SAFETY SWITCH

ALL VEHICLES WITH ELECTRIC FUEL PUMP MUST HAVE MASTER BATTERY DISCONNECT ON REAR

ALL VEHICLES MUST HAVE CHARGED FIRE EXTINGUISHER

 

 

 



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