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Old 03-05-2006, 01:41 PM   #11
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Originally Posted by 1993 SLE
Originally Posted by harofreak00
what was going on with McGraths problem then?
that is what i thought also

although one mentiones Idler and one mentions tensioner......

and Bill More have changed there belt than ran a different tensioner
With an oversized tensioner you get more belt wrap and therefore more surface area that the belt it touching the pulley, so less chance of slipping. A smaller belt works because it fits tighter, but a larger tensioner works better because it fits tigher AND wraps around the pulley more. Once you go down from a 3.4, then you start going with shorter belts. Assuming the stock supercharger belt is in good shape, an oversized tensioner will work better than a smaller belt.

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Old 03-05-2006, 05:54 PM   #12
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I used an oversized tensioner for a week, and when I put it on, the belt was VERY close to rubbing. Within a week, that $30 belt was trashed,slipping off the SC pulley, no ribs, etc. Put stock tensioner pulley back on, went with a smaller belt, and had no problems.

Also, you will need the puller to get the old pulley off, and press the MPS hub back on. Renting it is a much better idea if you are going MPS.
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Old 03-05-2006, 10:50 PM   #13
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I think Mac had a severe case of belt stretch
Yeah I had so much more clearance when I had put that belt on. But it I didn't see it strech slowly it did it all very fast.

I say go for the stock size belt and over sized idler pulley for a 3.4. But watch the clearance closely

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