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MODIFIED STOCK
WEIGHT CLASSES: 6500 AND 7000
"ONE YEAR TRIAL" ITTPA
1. COMPETITION VEHICLES MUST HAVE STANDARD BLOCK AND CRANKCASE FOR MAKE AND MODEL BEING ENTERED. REPOWER ENGINES MUST USE ORIGINAL EQUIPMENT SIZE AND TYPE INJECTION PUMP FOR
THE TRACTOR BEING ENTERED. TRACTOR IDENTIFICATION BY TRANSMISSION, REAREND AND CHASSIS SIZE, NOT BY DECAL OR SHEET METAL WITH STOCK APPEARANCE. TRACTORS MUST HAVE WIDE FRONT
AXLES. FRONT WHEELS MUST TRACK WITHIN REAR WHEELS
2. ENGINE CUBIC INCH LIMIT OF 399 CID. GASOLINE TRACTORS LIMITED TO ONE DOWN DRAFT CARBURETOR-MAXIMUM 450 CFM OR ONE UPDRAFT CARBURETOR.
3. WATER INJECTION ALLOWED.
4. TURBO CHARGER MUST BE UNDER HOOD. TURBO CHARGER MUST BE T04 OR EQUIVALENT (3LM REPLACEMENT) WITH STOCK HOUSING SIZE – 2.4 INCHES.
5. EXHAUST MUST DISCHARGE VERTICALLY UPWARD ABOVE HIGHEST POINT OF TRACTOR, EXCEPTION OF ROLL BARS, AND BE SECURELY ATTACHED. EXHAUST MUST BE AT LEAST 18" ABOVE THE HOOD AND NO CURVED PIPES OR RAIN CAPS ALLOWED. EXHAUST PIPE MUST BE CROSS-BOLTED WITH TWO 3/8" GRADE FIVE BOLTS WITHIN 1" OF EACH OTHER.
6. ALL ENGINE FANS MUST BE SHROUDED WITH STEEL 1/16" OR THICKER, 360 DEGREES OR FACTORY.
7. MINIMUM DRAWBAR LENGTH 18" FROM CENTER OF REAR WHEELS TO POINT OF HOOK. DRAW-BAR MUST BE RIGID IN ALL DIRECTIONS. MAXIMUM 20" FROM TOP OF HITCH TO THE GROUND. DRAWBAR MUST BE
PARALLEL TO THE GROUND. HITCH MUST BE HORIZONTAL – NOT VERTICAL.
8. ALL TRACTORS OPERATING AT OR OVER 3200 RPM’S WILL REQUIRE:
A. AIR SHUT OFF - MUST ALSO BE ABLE TO BE OPERATED MANUALLY (BY THE OPERATOR FROM THE SEAT OF THE TRACTOR)
B. FLYWHEEL PROTECTION IN THE FORM OF EITHER:
1. A SCATTER BLANKET
2. 6" X 3/8" STEEL AROUND THE FLYWHEEL AREA
C. SKID BARS INSTALLED IN ACCORDANCE WITH THE FOLLOWING SPECIFICATIONS:
1. PADS ON BOTTOM OF BARS TO BE A MINIMUM OF 5 IN. SQ. PADS
2. PADS TO BE A MINIMUM OF 32" REARWARD FROM THE CENTER OF THE REAREND HOUSING.
3. PADS MAXIMUM OF 10" OFF THE GROUND.
4. OUTSIDE TO OUTSIDE LENGTH OF PADS TO BE A MINIMUM OF 20".
5. MINIMUM 12" HIGH BUMPER BARS - TOP TO BE FASTENED TO STABILIZER BAR FRAMING.
6. BARS MUST SUPPORT WEIGHT OF TRACTOR FOR WEIGHT CLASS BEING PULLED.
9. MAXIMUM TIRE WIDTH IS TO BE 24.5",- NO CUT TIRES.
10. WEIGHTS NO MORE THAN 24 INCHES FROM FRONT MOST PART OF TRACTOR.
11. COMPETING VEHICLES MUST HAVE WORKING REAR WHEEL BRAKES.
12. COMPETING VEHICLES MUST HAVE FENDERS THAT CONSISTS OF A SOLID BARRIER BETWEEN THE DRIVER AND ANY PART OF THE REAR TIRES. THE BARRIER MUST BE ABLE TO SUFFICIENTLY SUPPORT THE WEIGHT OF THE DRIVER
13. VEHICLE MUST HAVE A ROLLOVER PROTECTION BAR OR CAGE THAT IS AT LEAST AS HIGH AS THE TOP OF THE DRIVERS HEAD/HELMET. ROLLOVER PROTECTION MUST BE FASTENED AT LEAST TWO POINTS TO THE REAR AXLE HOUSING. FACTORY STYLE FLIP DOWN TOPS ALLOWED. ROLLOVER PROTECTION MUST BE ABLE TO LIFT ONE REAR WHEEL WHEN PULLED HORIZONTALLY FROM THE TOP OF THE BAR/CAGE WITHOUT DAMAGE TO THE ROLLBAR/CAGE.
14. TOP 3 FINISHING TRACTORS ARE SUBJECT TO INSPECTION.
15. DRIVER MUST WEAR SHIRT, SHOES, AND LONG PANTS.
16. FIRE EXTINGUISHER IS REQUIRED.
NOTE: ALL PULLERS MUST BE SIGNED UP 30 MINUTES BEFORE PULL STARTS
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