hey guys wanted to know where is a good place to pick up the 3.12 pulley set up in socal. i have the stock set up right now with the vortech blower and only getting 5 psi at 6000 rpms. Is it a good idea to go with the 3.12 set up to get more boost? Would it be safe to do this without new injectors, or would i need that n more?

 

I picked one up at www.summitracing.com, they usually have things pretty cheap over there.

 

I have the stock set up as well, but with plenum spacer, headers, HFC, and exhaust. I'm makin 8.7 lbs of boost. You sure your only at 5lbs?

 

^ I have the same 'breather mods'

 

yea well i did have the car tuned after the "breather mods" , but i think i just found my problem today. my gasket for the kinetix plenum is gone bad. i would think this makes a big difference considering the compression lost.

swatson, by any chance is your spacer on the stock plenum?

 

yes motordyne 5/16" spacer on the stock plenum, why?

 

SWATSON you have the Fluidamper on your crank.It is larger in diameter.which will be overdrive,it is the same as putting a smaller pulley on the SC.That is why you got 8.7.On mine, I got 8.9 .

 

Swatson, the reason i ask is i wanted to know if i went with a spacer, would it fit on the Kinetix plenum. i think it would.

and to add about the 3.12 pulley, how do you know which part it is on the summit racing website, i just see vortech products, but dont know which one to choose?

 

oh yeah... i forgot that i had that put on as well...

 

http://store.summitracing.com/partde...5&autoview=sku

 

coo thanks a bunch Swatson, hopefully it shall be on the way soon. Btw what size belt did you run with that pulley? i have the gates 93.5 on right now

 

For the 3.12 pulley you need a shorter belt (93.0")

 

I never installed the pulley, so I can't comment on what size belt. There are a few threads commenting on what people think is the best size belt.