Originally Posted by MN_32AMG
I recently bought a stock pulley and took it to a machine shop. They did some sound tests "sono-something" and determined how much metal was around the bearing. Then they took it down about 5mm. They left the grooves and he also said they "roughed it up a bit" to prevent belt slippage.
Now I need some shims because the new pully needs a bit more space to keep from rubbing the SC clutch. Any idea what size those shims are or where I can get some? After I'm done, I'll probably put it back on the dyno to check the results.
all of my shims and rudy's shims went to a member here who needed them and we never got any of the extra shims back. its a odd inside diameter shim. you might try hp autowerks and see if they have any.
lance1337 instead of asking for a "price" for a file you might offer it to a member who is trying to advance the aftermarket products for these cars. with so little credit on here going after the almighty buck isnt the best way to start. just sayin....
jonnyb whats the advantage of a titanium pulley over the aluminium pulleys already out there? mine is first gen c3 and i have had zero issues with it and logged a max 19 psi boost