post number 28

These are the shafts out of my friend Marty's top fuel motor. It made 800 horsepower. He kept pulling tapers, so he made up these hex shafts, and cut hexes into the flywheels with an e.d.m. He couldn't true the flywheels, so the machine work had to be 100 percent accurate. This is a cool idea that I might adapt to the sears.