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Message: <blockquote data-quote="pavengmike6" data-source="post: 453037" data-attributes="member: 553009">I read i here about changing your pully ratio.  Well depending on the size depends on the results.  I had to slow mine down on my street dragster because I kept throwing belts.  But if you go down around an inch in diameter you will not produce premature failure.  You only want it to spin a small bit faster.  maybe 1000 RPM.  So unless you redline you car all the time you are not overspinning the alts.  Seeing most of these alts are designed to spin A LOT faster than your car can you do not have to worry about that.  The only thing it will effect with the other pullies is having to get a different belt size.This is an easy fix.  Size your pully and then get one a little smaller.  DO not go drastic or like you said you could over spin them.  Or better yet throw the belt.</blockquote>

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