Pulley Questions
Hey Gizmo, I tried sending you the RPM / speed information you request in the last PM. But for some reason, I am not able to PM you anymore. They will not leave my outbox, I have tried twice. I found some of my old calculations from when I was changing things up. With my 34T / 74T pulleys and Avon tire, my calculated RPM at 70 mph was 2950 rpm's. The tach registers around 3050 to 3150 rpm. For every two teeth that I went up on my front pulley, my RPM's only dropped about 250 in my calcualtions. A car tire with the larger circumference really made the RPM's drop in my calculations.
Bud C.