Ok so I have ordered #60 injectors,And now I am droping the pulley size going to run a 2.9,So what I am wondering is will a stage 2 belt work or will I need to get the larger pully wheel to take up slack in the belt any info would be great,thanks,Jason
I think a stage 2 belt will work for you.
Read this on the cobalt forums...
Click
Save your money. It might be worth something someday.
thanks for the,Well 2.9 it is..
Im running 2.9 on the same belt. As 3.1. the stage 2 belt I couldn't get on.
hmmmmm,so you are running stock belt on a 2.9 with no slipping.
No belt slip, stage 2 is good insurance though. My car just likes the stocker....
well ok then,I will order the stage 2 belt than..thanks for the info..
i have a stage 2 belt if your interested. PM me if your interested.
I installed a 2.8 pulley on a friends car and ran a stock SS/SC belt, but used the ZZP larger idler pulley.
FU Tuning
Might be cheaper just to add a phenolic spacer.....I'm running the stock belt with a 3.0 and a zzp manifold spacer and an O.E.M. blower spacer. It is a tight fit with both spacers though
thanks for all the info guys,always lots of help to me..Jason
With the 3.1" pulley and the OEM phenolic spacer I was running fine with the stock s/c belt.
When I removed the phenolic spacer, and dropped to a 3.0" pulley it was Definately Slipping, so I installed a larger tensioner pulley and it's all good.
By the way, JUCNBST did you use silicone on both sides of the s/c outlet spacer?
Jesus Jacobo wrote:With the 3.1" pulley and the OEM phenolic spacer I was running fine with the stock s/c belt.
When I removed the phenolic spacer, and dropped to a 3.0" pulley it was Definately Slipping, so I installed a larger tensioner pulley and it's all good.
By the way, JUCNBST did you use silicone on both sides of the s/c outlet spacer?
Jesus- The order I ran my spacer in was as follows. lower Manifold - paper gasket - Phenolic spacer - gm metal gasket - M62 blower. For the bypass spacer you have a rubber o-ring on the manifold side and for the other that makes contact with the blower bypass I used a light film of black RTV. I had no issues with boost leak or vacuum leaks when we installed it this way. I also had no belt slipage without the spacers and a 3.0 maybe your tensioner is worn out?
