05-12-2018, 12:03 PM
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#19 (permalink)
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Track Member
Join Date: Jun 2015
Location: Granbury, TX
Posts: 550
Drives: '11 SC Blue 7AT
Rep Power: 3366
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Quote:
Originally Posted by TBatt
Sorry but you are confused by the two drive belts.
My kit goes on the serpentine belt that is driven by the crankshaft pulley. That is why I include a longer belt. The other belt that connects to the SC also has an idler that is used to adjust the belt tension. If you switch to a smaller than stock SC pulley you won't have enough adjustment with the stock idler so you need to go to a 64mm idler pulley to take up the slack (Gates #36225).
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Hey, I'm sorry to bring this back and for missing this info earlier, but if I drop down to the smaller 9lb serp-side pulley, do I need get a larger idler pulley than the one that came with your kit? I'm having boost issues and everything trends correctly until top end, where I think I'm getting belt slip, but I can't hear it. I had no belt slip and expected boost with the 8lb pulley, but I'm now losing boost top end after switching to the 9lb pulley. I didn't change anything else other than replacing the serp-side pulley with the smaller one. Is this where I messed up? Thanks!
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