Re: LS1 belt problems
Well, after thinking it was the tensioner and replacing it with no luck, checked the bolt on the harmonic balancer just to see if it was tight, and it was almost completely loose. Couldn't get a wrench or socket to fit because of the steering rack, said screw it. Friend took it to a dealer, new balancer and $600.00 later, it's fixed. I think that's a bit much for labor, but it was a Chevrolet dealer charging $80.00 an hr, and a balancer shouldn't have been more than $130.00 if they didn't have to remove the rack (i'm almost positive you have too on the vettes) he got burned.
Moral of the story is, if you're gonna run 'em hard, check all of your bolts, especially those leaky intake bolts that wiggle out with vibration.
The only Mustang I'd ever own is a Fender.
'68 333" Camaro
'14 5.0 Mustang