Some of them powered Tommy Kendall-driven Roush cars to three championships. That assignment ended in 1997 with a transfer to the IRL division, a stint lasting through 1999. This year he has worked in the engineering department, adding further to his skills that helped him develop his clutch tester. In the early '80s, he served an apprenticeship at a machine-building shop. Carrothers's interest in designing the Clutch Dyno stemmed from his long interest in Pro Stock.
Every successful run depends on the clutch.
Allen's brother Roger became friends with Carrothers while working on IRL projects with him at Roush Industries. We know more about what we are doing. Once we have the hard information, then we can do something else. Any piece of equipment is going to make you better. The dyno is like a micrometer because it puts a value on what you're doing.