smitty2919

lol...I concure

KillJoy

With a 3psi boost leak, you would definitely know. That is a huge leak, and the car would run incredibly ****ty in vacuum.

ShadowDrake

Unless the leak is before the MAF. It's likely he's using blow-through, especially if it's a procharger.

But a 3.33 pulley sounds more like a vortech pulley.

On a P1SC with a 3.40 pulley I made 13 psi on a stock engine otherwise. And did comfortably over 400 whp.

If your AFR's are good and you've got the extra boost, don't worry. Just know the stock engine parts won't hold up to that too many times.

dwtjr3

I am using a blow thru setup, and it was on the intake pipe after the MAF sensor. car wasnt running horrible but then again i wasnt running it hard until i fixed the boost leak. (i fixed the boost leak before i took the car to the track killjoy, its just my boost gauge doesnt light up and while going down the track the only gauge i was watching was the wideband) . And yeah my AFR is still 11.5 when i get in the throttle so i am good. I trust my tuner the guy definitely knows what he is doing

97stanger

I think all of the variables will play a factor (boost leak, colder temps, gauge readings, etc). On the dyno 3 months ago I was seeing 17 psi, with no changes except the weather I now see 20psi, so just goes to show you how denser air can affect boost. I think you're fine...

dwtjr3

Alright cool. It has been cooler and i was driving around at sunset when i saw 14lbs so i think im fine then too, thanks 97

Gt04

With the colder air I went from seeing 9#s to 12-13#s on the kb and needless to say I now need a new clutch

justinschmidt1

jeez, I dont think I saw any increase in boost in the colder temps. lol

FYI im running a 3.15 pulley on my car with a vortech si trim intercooled and see 10-11 psi tops at 6k

But the dyno gauge was reading high and told me I hit 13 psi at 6300 rpms.

my boost gauge seems to never go over 10 or 11