
The average horsepower for this class is approximately 1200 horsepower. The main modifications, from the Classic Super Stocks were increased cubic inches and larger turbo size. This class derived from our Classic Super Stock class.
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The Light Pro Stock Class is a black smoke, diesel tractor class. Jefferson County Fair PullJefferson County FairgroundsJefferson, WIJuly 13, 2022Video by Hooked Up Pulling Productions.

The smallest of the classes competing in the ITPA, these machines look much like the Cub Cadet or John Deere in your own garage. The secret to gaining more horsepower and torque is increase the compression ratio and. ü Compression is when the air/fuel mixture is adequately pressurized on the compression stroke. Check for a worn points lobe on the camshaft, too. Chances are, if an engine is losing power, the timing isn't advanced enough. Ten classes were showcased across four days of competition and five sessions.ü Check the ignition timing.

Pro Stock Diesel TrucksCharlestown, IN (February 24, 2022) - After a two-year hiatus pullers and fans returned to legendary Freedom Hall in Louisville, Kentucky for the annual Championship Tractor Pull and National Farm Machinery Show, held February 16 th through February 19 th, 2022. Fans from across the country, pack the stands for a chance to watch these machines throw dirt and with the power of over 10,000 horses. Tipping the scales at 7800lbs, the competitors in the Super Modified Tractor class must use every ounce to they have to their advantage.
