Homer used crankshaft RPM as the model. Even though the piston is connected to a crankshaft spinning at 3000RPM, the piston is going from 0 to 75MPH in less than 9 inches (my rough estimate). If there was a way to measure piston RPM, it would be much higher than the crankshaft as it accelerates to full extension, but that's not the what the gauge on my car is measuring. In the golfing machine, the crankshaft is the left arm flying wedge rotating through impact. Everything supporting that includes spark plugs, fuel, air, and oil. If those are out of whack, its time for a tune up.
Thanks for great clarification effort Bagger,
That could mean that TGM basic RPM in the definition refers to the RPM of the hands.
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