Horsepower has a way of finding hiding places throughout the drivetrain. You might be sacrificing a few horsepower here and there due to normal parasitic loss or you might be dealing with a much more ...

For straight line guys, spending hundreds of dollars on something that doesn't give you any extra horsepower doesn't exactly seem like a good deal. Even a federal bean counter could figure that one ...

This exploded view of a torque converter calls out the important converter components. On the far right is the impeller (A) that uses input power from the engine to impart fluid motion to the turbine ...