LS7 throwing belts

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Oct 28, 2007 | 11:46 AM

pcf_mark

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From: Hilltown

LS7 throwing belts

Our LS7 conversion using all Corvette LS7 accessory drive parts except A/C is throwing belts. With our belt tensioner in the middle of the range it tosses the belt when you flog on it. The first belt lasted a while but we have tossed two very quickly now. Any suggestions?

Thanks!

Oct 28, 2007 | 12:19 PM

QSPres

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From: East Freetown, MA

Make a little metal "L" shaped bracket that rests slightly above the belt. Doesn't matter where, just where ever it fits and the problem will be solved.

Old drag racer tirck.

Oct 28, 2007 | 12:20 PM

Ls2Sonoma

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From: edmonton

ive never had any experience with this situation, but im under the impression that katech makes a tensioner that will help.

http://www.katechengines.com/street_...etail.php?id=1

Oct 28, 2007 | 01:46 PM

XcYZb

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From: Rochester, MN

Since you're using all LS7 accessories and drive, you may be interested to know that GM made a change to the alternator that allows it to free-spin on decel - a one way clutch on the hub. The alternator has a lot of mass and when the throttle is snapped shut at 7k rpm, some people were throwing belts. There's some talk about this on CorvetteForum.