Anyone got an ASP OVER DRIVE pulley
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From: Sandy Ego, Ca.
Anyone got an ASP OVER DRIVE pulley Whats the diameter on that. I bought a ASP crank pulley off someone which came with a smaller pully for the alternator....Im trying to determine if the alternator pulley is an Overdrive or under drive
Last edited by BitViper; Jan 20, 2007 at 10:46 AM.
A LARGER alternator pulley means it's UNDERDRIVE, it's backwards from the crank.
The larger pulley means more belt will have to pass by for it to turn the same number of revolutions, making it underdriven. Should be worth an extra 1-3hp, but you may run into charging issues with both installed.
The larger pulley means more belt will have to pass by for it to turn the same number of revolutions, making it underdriven. Should be worth an extra 1-3hp, but you may run into charging issues with both installed.
I have the ASP pulley set installed on my '00 Z. It does struggle for voltage at idle, but it has not caused any problems for me. I am pretty sure that the pulley I have for the alt is an overdrive pulley though. I think that with an underdrive pulley, you would have some problems.
