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Old 11-02-2015, 12:19 PM   #3646
pgranberg11
BoostedBRZ
 
Join Date: Mar 2014
Drives: Turbo BRZ
Location: IL
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Quote:
Originally Posted by pgranberg11 View Post
yea, I get the chatter. When starting to accelerate from a dead stop it sounds like something it hitting something else under the engine. I realized it's actually belt slap. If you're hearing chatter my guess is the belt is too loose. The tighter I put the belt on the less chatter I heard. So I just tightened the belt to where I heard no chatter. The 21mm rule that they have in the manual didn't work for my second belt. It was wayyy too loose. I went by my friends "half a belt twist rule" and it worked fine. Just tightened a tad bit more and then all chatter disappeared. If I could remember, I believe I'm at 14 or 15mm from the bottom of the bolt head tensioner to the supercharger bracket. Hopefully this helps a few.

people braking belts... please read this. ^^^ I've tracked this kit numerous weekends with 10+ 20 minute sessions. I've only broken ONE belt and that was using the "21mm" rule which you cannot go by. Once the belt is stretched you can no longer use that rule because the bottom of the bolt head will need to be less than 21mm..

this kit is super reliable and I absolutely love it. like I said I've broken the belt once, but it was replaced under warranty.
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