schizcat

Looks like there are 2 different PB stock size pulley's for the C6. The PB 1117-SS and PB 1117N. The only difference I can see is that the SS is SFI approved and N isnt. Is there really any big difference in the two? I probably wont run a cam or supercharger in the car. If anyone has used either, input would be great.

2005 MN6

irok

their too heavy and haven't been machined for the factory DEW washer if you don't pin the crank.possibility of spinning on crank

truckplay

I run a PB on my heavily cammed C6 and a SLP (they are the same unit) on my mostly stock C5 and both have worked flawlessly. I did pin both cranks, but that was my choice.

CMY SIX

I'm running the SFI unit in stock Diameter and couldn't be happier! car got noticeably smoother after install, have removed and reinstalled once with no problems

Dano523

http://www.daycoproducts.com/parts?c...scription=1787

Hence you want the PB117SS unit, and will be the once that is C clip retainered.



ThePB117N unit is just a copy of the OEM unit, and has the same problems as the OEM unit as well (sections glued together with the center rubber insert).


And stay away from the under and over drive units, since it will cause nothing but problems with the alternator isntead. Hence don't spin the Valeo unit fast enough at idle with a under drive pulley, and you will get service charging system errors since it not putting out enough amps at idle. Spin the Valeo alternator too fast at top rpm with a over drive pulley, and it will break it's internal coil winding's to destroy it instead.