Topgunz - air to air upgrade

mikey1600 · 05-04-2017, 01:21 PM

My kit arrived but few things to get still (haven't even unboxed it yet :O), need to get fuel system from Phunk and send my charger away to be upgraded

If we upgrade to Si trim + already have the 9psi pulley on and want more boost, which should we be getting?

I'm going E85 route so wanna crank it up a bit, happy to go around 15 psi

Quote:

Originally Posted by TBatt

Don't forget that they best way to go to 9psi is to change the drive pulley on the SC. You can order the 2.85 pulley directly from Vortec.

https://vortechsuperchargers.com/col...ant=7811182081

You will also need to go up in size for the idler pulley to get the correct tension on the belt. Still with the added idler it is way cheaper than what Stillen charges.

Just found the SC belt idler pulley that is needed when you go to the 9psi SC pulley. Use the NAPA 36112 part.

milkcow500 · 05-04-2017, 01:30 PM

Quote:

Originally Posted by mikey1600

My kit arrived but few things to get still (haven't even unboxed it yet :O), need to get fuel system from Phunk and send my charger away to be upgraded

If we upgrade to Si trim + already have the 9psi pulley on and want more boost, which should we be getting?

I'm going E85 route so wanna crank it up a bit, happy to go around 15 psi

Doing the serp side pulleys will give you a bit more boost. Other than that, the only way you can get more boost is by going with a smaller sc pulley and overspinning the blower or removing your air filter. You won't get near 15psi though. I'd also keep in mind that boost works differently in a sc setup than a turbo.

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