Thread: Boost PSI?

Originally Posted by Joe m

my stock boost gause works petty good i dunno what your saying dont go by it lol. it only goes when im actally stepping on gas. if im driving like a old snowbird in there 90's then nothin reads

My stock gauge is showing 6 "bars" so thats 4.5 psi, right? I'm talking about the autometer. It's f'd up, plain and simple.

If you even CONSIDER going by the stock gauge...your off your meds.

the stock gauge is completely useless. those 'bars' mean nothing for numbers. it will read differently every time you step on the pedal.

Originally Posted by JoelW98GTP

My stock gauge is showing 6 "bars" so thats 4.5 psi, right? I'm talking about the autometer. It's f'd up, plain and simple.

actually........ in think there is 8 bars total, from what i recall it maxes out at 6psi. so 6 bars might just be 4.5psi........


my stock gauge is relitivley close.

Or...GM could have just been smart from day one and put an actual gauge in the dash...like Ford, or Mitsubishi, or Nissan. I mean...they had one in 1986...was it that hard to do it again 11 years later?

impalas had a boost gauge in the gauge cluster. read -10 to +10.

that would be all i need

Originally Posted by Bio248

impalas had a boost gauge in the gauge cluster. read -10 to +10.

Forgot about those...I think the Monte had it too. But its a Bowtie...who cares

Originally Posted by JoelW98GTP

My stock gauge is showing 6 "bars" so thats 4.5 psi, right? I'm talking about the autometer. It's f'd up, plain and simple.

^^ I was joking there. I agree that the stock gauge is no means of measuring boost. However, it can still be used as a way of detecting the presence of boost, but the levels are unknown. Kinda like if you have a ford f150 and it has the oil pressure gauge that has L and H. Who knows what the oil pressure is as far as psi. All you know is that its detecting oil pressure and supposedly within operating range. That's how I'm referencing my stock boost gauge. My stock gauge says i'm getting some boost. Don't know how much, but my Autometer still sits on the left side of the 0 box.

My stock 3.8" pulley puts out around 7 or 8 PSI

Originally Posted by 2001GTP

My stock 3.8" pulley puts out around 7 or 8 PSI

Jesus...you sure do have high boost numbers...that thing should only be putting out like 6 or so.

7-8 is very, very common for stock.

Originally Posted by Scimmia

7-8 is very, very common for stock.

With flow mods though?

Every car is a bit different. Even with the plog and dp, 7-8 doesn't surprise me in the winter.

Originally Posted by Scimmia

Every car is a bit different. Even with the plog and dp, 7-8 doesn't surprise me in the winter.

Well see...now were talking COLDER air

Everything boosted runs like a raped ape in the cold

14-15 psi on a 3.4 last winter for me. big knock numbers too.