Thread: Boost

Well if you don't have supporting mods for that smaller pulley then get rid of it or get a bunch of exhaust mods or your car = a ticking time bomb. What size pulley is it? You can go out and measure it too if it isn't written on there. Stock is about 5-7 psi IIRC and a basic 3.4" pushes 10psi.

wow i learned something today i didnt think 3.4 was around 10 psi well glad i learned something

Originally Posted by GTPJOE90

wow i learned something today i didnt think 3.4 was around 10 psi well glad i learned something

What did you think it was then? Stock is 8 at the highest.

my 3.4 setup runs about 9 psi peak, but ive got some mad flow mods.

wow i was told stock is 5 and 3.4 is max 8

I get about 9-10 with my 3.4

Heh...buddy of mine saw 15 psi with his 3.4" and no knock...go figure. LOL Car is a freak.

I saw 17 on my 3.1" on a VERY cold day...about 2* outside. And I had no knock either so who knows...get a boost gauge. That'll tell you.

i was seeing 14+ psi in the winter last year on my 3.4.

Just looked at my aeroforce 9.3 max at 80 degrees outside.

Originally Posted by bluegtp91

Well if you don't have supporting mods for that smaller pulley then get rid of it or get a bunch of exhaust mods or your car = a ticking time bomb. What size pulley is it? You can go out and measure it too if it isn't written on there. Stock is about 5-7 psi IIRC and a basic 3.4" pushes 10psi.

My stock pulley sees anywhere from 7-9 psi stock according to my aeroforce gauge at max rpm's on the standard 3.8 pulley......but psi is over rated as it is just a way to gauge how much restriction(backpressure) is in the system.......if you had a huge intake and headers on, it would not make close to that much boost, but still make as much or more power.........obviously I need to upgrade my exhaust.......

Originally Posted by GTPJOE90

wow i was told stock is 5 and 3.4 is max 8

no way........whoever told you that is smoking something...

boost will never be a set amount for each pulley. period.

curious: how much does the stock Series III make?

Originally Posted by Orbital431

curious: how much does the stock Series III make?

same.

Originally Posted by bluegtp91

same.

Boo! :'(

Originally Posted by Orbital431

Boo! :'(

But you have a GenV vs. a GenIII so you go faster...why you cryin?

i assumed the L32 made at least like a couple lbs more than L67. lol.

No...but the better supercharger gives about 20 crank hp more than the genIII