What kind of boost is everyone getting with their aftermarket pulleys? I have the 2.9" that came with my stage 3 and I'm getting around 16psi.

 

GM stg2 Im hitting 115kpa/16.7psi with no intake or mods.

Edit: forgot the size lol 3.066 or some **** I forget the precise number.

 

2.9" BF pulley.....with CAI and exhaust, and I get 17psi

 

Stage 5, 20psi

 

I have a 3 inch....I'm getting about 16 as well. I have an intake and exhaust too

 

GM stage 2 / 15.5psi
Yes, 15 point 5 not just 15.
Just kidding, it's 16psi!

 

Why am I reading 115kpa? I dont even have am intake or anything. Am I restricting myself? Is it just my gauge not reading right? How can I be running as much boost as a 2.8 with CAI?

 

2.5"...17.4 psi...but i think hptuners may be reading a lil wrong.

Dan

 

It could be a clogged CAT!

Yeah a 2.5 should be well near 19psi if not 20.

 

yah that was one of my firs signs too.
that an listen for a whistle as you start to boost, different from the CAI

 

I'm not too concerned...its not slipping...well the belt that is...the clutch is another story...but it runs like a bat outta hell...

 

I have Gm stage 2 and was swapping out my pulley to a 2.85" but the bolts have a wierd fan shaped patter on them and was wondering if ne one knew where i could get the part to take the bolts off

 

3" getting about 15-16 ... it just keeps climbing and I gotta shift so I dunno the final result

 

The car runs very strong. Actually I seem to be having a harder time hitting 115 recently (takes longer to get up there). How can I test my Cat? I looked at it and I dont see any swelling. My car whisltes as soon as i stomp it but thats just the whine.

 

you get higher boost because you have a more restrictive air flow..
open up your intake/exhaust and your boost will decrease.. but your power will increase

 

Yeah thats what it is. Thanks for the info.