Thread: Identifying aftermarket pulleys
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Old 11-03-2011, 05:39 PM   #6 (permalink)
XwChriswX
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Originally Posted by FastZ... View Post
Will an underdrive produce more noticeable power gains than a lightweight? I have an underdrive from Stillen that just came yesterday - I was just waiting on the Gates Belt. I think it's obvious that I have an aftermarket pulley - not to mention my car runs pretty well - with the full exhaust. I mean, I light stock Z's up.
Both the lightweight, and the underdriven pulleys are doing the same thing. Less rotational mass = faster through the RPM band. Different methods of the same goal. Even though your gains will most noticeably be seen from your being tuned for these mods.

Don't mention that part.
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