OUTPR4MZ

Moved to a 2.8" supercharger pulley, but need a new belt. I have tried every local store I can think of. Any ideas on where to get one??

Nuclear

try getting the part # for the gm stage 2 belt

CTCOBALTSSS

All you have to do is go to the link i'm putting in here and fill out the email form. GM will email you back the part #.
https://secure.gmpartsdirect.com/sec...tomer_service/

OUTPR4MZ

I Have Found A Alternative Instead Of Finding A Smaller Belt. I Used A 76mm 6 Groove Pulley From Dayco.. Worx Great With Zero Slip

silverSS

link?

Jmc007

http://www.zzperformance.com/cobalt_...290ed9c97ad417

silverSS

kinda wondering about the link for the belt.

thanks.

JMC, whats your opinion on that tensioner? will it hold a 2.5" pulley? How low will it hold?

Knightrider22

yeah i have a 2.8 pulley and i got the 3.0 idler pulley from Intense and it still slips...if i get the
Adjustable Tensioner will is get rid of the slip??? and is it hard to adjust?

silverSS

still slips wtf?

thats why im gonna wait for the Stage 2 belt here is the part # 12597993

go bug ur dealers!!!

ENUFPWR

I wasn't too hard... I'm running the ZZP tensioner and the 3 idler pully from Intense on my setup. I have a 2.6 pulley and have the setting on the tightest and no slippage.

The only thing the ZZP tensioner doesn't have is a place to put a wrench like the stock tensioner to adjust it. I had to push down on the tensioner really hard and hold it, while a friend slipped the belt on. It was a pain to get it on, but once done it removed all the slack and no more slipping belt.

patathSS

Your belt still slips?!??!!?!? Are you sure its not something else slipping, aka clutch. Because I haven't heard of any slippage with a 2.6" here and the 3" idler.

ENUFPWR

Pat,

Nope... not since I put the zzp and 3 inch idler I had no belt slippage. Clutch was a different story at the track. I need to break it in more. It was hard to determine and I only noticed it after I put the 2.6 on.

I know it was the belt because I would notice my boost would go down 1lb at 6000+rpm and noticed some knock retard on topend. I had a weak tensioner from the factory... had the stock belt slipping when I put a 2.8 on. After I installed the zzp tensioner, went back for another run and logged some more data.... the slippage was gone and 1lb of boost was back with zero knock retard on top.

Jmc007

The tensionner is great set at the tightest with the 2.6". If someone plan to go to a 2.5" sueprcharger pulley, maybe you will have to combine it to a bigger idler pulley to be sure the belt doesn't slip.