01] Steel shafts are pressed into the ends of the rotors and pinned in place. A No. 6 taper pin is used for engines making less than 2,500 hp, and a No. 8 pin is used for more serious stuff. The ...

Horsepower is an aphrodisiac. To some people, building an engine that could sustain the earth's rotation with its crankshaft is better than almost any form of physical gratification. To others, it's ...