Vortech S-Trim Belt Shredding

[cole91]

I have a 2001 Mustang GT with a Vortech S-Trim. I've shredded one belt already and we put a new one on. It's thicker and is shorter so there is more tension on it. I've noticed that after a couple weeks of the new belt being on it was sliding off of the backside of the supercharger pulley. I think the problem is that its not aligned correct. I've noticed the other pulleys are straight but the supercharger pulley is at a slight angle, which is making the belt slide off of it. I'm looking for some advice or a solution. Is anyone having this problem?

 

[DBMSTNG]

I put washers under my bracket to shim the pulley straigjt to the engine pulleys. It's sll yo can do really unless you want to machime the bracket.

 

[Rick 91GT]

I have found it is not uncommon to shim the brackets, I shoot the pulleys with a laser to check alignment.