What kind of boost are you making??

**Rudd97gtp** · 03-08-2012

I was just interested in hearing about some-others set ups and pulley sizes. Just was wanting to see Wht amount of boost must have. I kno stock is around 9 right?? How much will the bottom end hold up too??

**cameron92** · 03-08-2012

I am pretty sure stock is between 6-8, depending on temp, altitude, ect.. I usually see around 6.5-7 where I live.

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**Austins01GP** · 03-08-2012

im making 10.5-11.5 depending on temp on a 3.4 with headers and ported blower/LIM
was making up 13ish before headers on a 3.4 with 3in down pipe

the lower number is actually better tho its not all about having a big number for boost

**Tuner-Extraordinaire** · 03-08-2012

6-9psi on 3.8 pulley @ 400-1400ft above sea level

10-12psi on 3.4 pulley @ 400-1400ft above sea level

Flow mods are JMB CAI Intake, Headers, 1.9RR/LS6 springs, And full 2.5" headerback exhaust.

**blueguy** · 03-08-2012

12-13 psi on a 3.0"

Mods were,

asdiufasdivnasdi;vnaeri;va;ae: alot.

**OH4CompG** · 03-08-2012

11psi -/+ 1psi at sea level on a 3.4, headers, zzp CAI on my regal.
12-13psi on my GTP. 3.2, ssic, 1.9rockers, headers, GXP catback, open cone

**matt5112** · 03-08-2012

8/9 summer/winter on 3.4 at the top of second.

500 ft above sea level.

Top swap, s2 ic, 1.9 rr, sd headers.

**dsmuts** · 03-08-2012

on stock pulley i was about 6.5ish 3.4 i'm at around 9.5 ish

**reallyfast1** · 03-09-2012

i hit about 13.5 psi @ 6k max ive seen.. which i think is pretty high

**Slick2500** · 03-09-2012

Over 9000.
Nah just playin like maybe 7 or 8 at the most.

**Swiggles** · 03-09-2012

14ish

**redlinepontiac** · 03-09-2012

8-9 with a blip of 10 sometimes 3.4, headers, rockers, openconenickbluegtpspecial

**machinegunsquid** · 03-09-2012

Not a single pound of boost, but still making 300hp.

**CrazyGuy03** · 03-09-2012

Originally Posted by Swiggles

14ish

damn son

I have 3.0 / gen5 / s1x and i just barely make it to 12psi at the top of my shifts

**redlinepontiac** · 03-10-2012

someones not flowing very well

**CrazyGuy03** · 03-10-2012

You think he would with IS3 heads and cam

**txslow6** · 03-10-2012

12 psi

**matt5112** · 03-10-2012

Originally Posted by crazyguy03

You think he would with IS3 heads and cam

Probably a 2.x pulley.

**KeithGTP03** · 03-10-2012

10.5-11.7 on a 3.3. A guy I know, bet me that you cant get more than 8lbs of boost out of GTP without blowing the motor. So, I shot this vid and it made me $50.