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Originally Posted by bossman
I don't mean to sound like a total chod but what does it mean to underdrive the crank? I understand that overdriving increases the rotation by whatever percent of whatever is spinning but how can the crank be underdriven?
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smaller pulley
Dwn4Anything-
bro i usually agree with what you say, but not on this one. Most of us really gotta see dyno sheets for this..
but it does help to have more and more people using these..
let us know if u have any problems.