LS1 bird

I just got my car dyno the other day.With 6 bolt ons i made 330hp at wheels and 344ft pounds of torque.My air 2 fuel ratio was in the 14.0.Is that good or is it running 2 lean?I have a 2002 fire bird formula.

SweetS10V8

iTrader: (4)

For wide open throttle thats lean. I would not run at 14:1! These engines seem to like 13.0-13.2:1 from the testing Ive done.

LS1 bird

Is this signs of my fuel pump going bad or do i need bigger injectors?I have an older super chips tuner and it wont allow me to add fuel to the car.

SweetS10V8

iTrader: (4)

330hp most likely does not need different injectors or bigger fuel pump. As long as your fuel pump isnt bad or your fuel filter isnt clogged, most likely you need to add more fuel through the tune.

Mike454SS

iTrader: (4)

You first step should be to CARFULLY and THOROUGHLY clean your mass air flow sensor. Thats usually the first cause for going lean at full throttle...it's usually either dirty (oily from filter oil or something else) or broken.

You can monitor the mass air flow sensors reading at full throttle as well, it should be a smooth reading, usually when they're having problems, at full throttle, the readings get very unstable and messy...and low.

LS1 bird

My a/f was a straight line at 14.0.I was told gm like to run lean.I will check my maf snice it's an aftermarket one.With 6 bolt ons it shouldn't make that big of difference with running lean i have nothing major done to the car.Maybe i need to have sumone add more fuel to it.

shoemike

iTrader: (25)

You probably need a tune.
The WBO2 could have been off tho.

Full-Force

iTrader: (11)

The aftermarket maf is probably the problem. You have to adjust the maf table in the tune for that and the superchips will not do it.

Your best power is gonna come around 12.8-13.0:1

SweetS10V8

iTrader: (4)

Very true, an aftermarket MAF MUST be tuned

LS1 bird

Im going to have 2 get my MAF tuned.Thank u all