If you are of the chosen few owner operators that own a KTA 1150 cu inch Cummins engine your multiplier is 66 ft lbs of torque per 1 pound of turbo boost. Butch Shuman of Tye Texas has one of our Twin-Turbo HVT-KTTA 1150 cu inch Cummins engines that produces in excess of 54 pounds of turbo boost which equates to 3564 foot pounds of torque and Mr. Shuman does not destroy transmissions. If you’re passing through Tye, Texas stop by Shuman Equipment Co. Butch could love to show you his 1978 extended hood Kenworth. This truck will spin the drive tires while pulling an empty bull rack at 85 miles per hour and using 54 pounds of turbo boost. Tire and drive line life are all controlled by the drivers right foot.