Texas Thunder Speedway Rules
2010 Classic Dwarf Car Rules

 Rules are based on the TUSA 2008 Rules dated January 1, 2008  Full rules are available separately on www.t-usa.org, which are linked directly to our website.

 1. BODY:   ONLY CLASSIC BODY STYLE WILL BE ALLOWED TO COMPETE (I.E., NO MOD-LITES).  FOR ALL DIMENSIONS AND CONSTRUCTION SEE THE TUSA RULES.  THE EXCEPTION IS THE FRAME AND IT MUST BE 1X2 WITH WALL THICKNESS OF .120.  THE FRAME MAY GO ABOVE OR BELOW THE REAR AXLE.

2. DRIVERS EQUIPMENT:   DRIVERS MUST HAVE FULL FACE HELMET SNELL 95 OR BETTER, SFI APPROVED RACING SUITE, 

GLOVES, SHOES AND NECK BRACE.

3. ENGINES:   MUST BE TWO (2) YEARS OLD AT THE START OF THE SEASON FROM A RUN OF AT LEAST 500 MOTORCYCLES.

SERIAL NUMBERS MUST NOT BE ALTERED.  CARBURETED OR FUEL INJECTED MOTORS ALLOWED, MUST BE ACCORDING TO

MANUFACTURER’S INTENT.  NO CHANGING FI ENGINES TO CARBURETORS.      FI MOTORS MUST BE COMPLETELY STOCK 

AND 1000cc OR LESS.  TIMING RETARD ELIMINATORS AND GEAR POSITION INDICATORS ALLOWED. NO POWER 

COMMANDERS, AFTERMARKET IGNITIONS, CAMS OR PISTONS.  CARBURETED ENGINES MUST BE OEM WITH THE MAXIMUM 

OF 1220cc + 1%.  POWER COMMANDERS, DYNA IGNITION MAY BE USED.  HAYABUSA ENGINES NOT ALLOWED.  ONLY PUMP 

GASOLINE SHALL BE USED.  NO ALCOHOL.

4. SUSPENSION:    TORQUE ABSORBING DEVICES ON REAR THIRD LINK OK.

5. QUICK CHANGE REAR ENDS:  ALLOWED BU CANNOT BE CHANGED AFTER HEAT RAE.

6. RACING FUEL CELL:   MUST HAVE A FLAPPER DEVICE/ROLLOVER DEVICE OR AN AIRCRAFT STYLE POSITIVE LOCKING CAP.

7. SHOCKS: ONE (1) SHOCK PER WHEEL MAXIMUM TRAVEL OF SIX INCHES.

8. BRAKES:  FOUR (4) BRAKES RECOMMENDED BY ONLY THREE (3) REQUIRED.  SHUT-OFF VALVE TO RIGHT FRONT OK.

9. TIRES AND WHEELS:  ALL TIRES MUST HAVE A DURO OF 45 BEFORE RACING.  ANY TIRE WITH DOT STAMP WITH THE

DIMENSION OF P195/60D-13, P205/60D-13, P215/60D OR P235/60d-13 IS ALLOWED.  HOOSIER DOT DIRT TIRE OK AS LONG AS IT FITS THE 

ABOVE RULES. GOODYEAR G45 OR G50 RACING TIRES ARE OK.  NO RACING TIRES WITHOUT DOT RATING NOT PERMITTED.  ANY STEEL 13X8 MAXIMUM WIDTH WHEEL.

10. BALLAST: CAR WITH DRIVER AFTER EVENT MUST WEIGH 1240LBS.