LS2 procharger ??
Thread Starter
Instructor
Joined: Sep 2006
Posts: 181
Likes: 0
From: Bremen Indiana
LS2 procharger ??
I have a procharger setup on my '06. Recently ran on dyno and came up with 477RWHP. Very conservative setup. Want to know where I can go from here with stock motor?
pulley has stamped 4.63 on it.
What will this motor/fuel system support safely ?
Thanks in advance.
pulley has stamped 4.63 on it.
What will this motor/fuel system support safely ?
Thanks in advance.
Thread Starter
Instructor
Joined: Sep 2006
Posts: 181
Likes: 0
From: Bremen Indiana
We just ran as a baseline. A/F was 11.2, don't know timing or boost. A full tune is next. #'s were below my expectations and wanted some ideas on where to go from here. Sorry for the lack of information.
Racer
Joined: Nov 2008
Posts: 495
Likes: 50
My 05 a4 put down 552 rwhp with a 4.25 pulley which is about 9lbs. I have headers and a dallas perfromance air intake. You will need more fuel both larger injectors and a bigger fuel pump or boost a pump. I put a z06 pump in mine and it is sill loosing fuel pressure above 6300 rpm. Your current set up should be about 500 ish give or take hp with a good tune.
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Racer
Joined: Sep 2009
Posts: 339
Likes: 0
From: Camby IN
I stepped down to a 4.25" pulley on mine with 42 lb/hr injectors and a stock pump. My injectors are at 98% now. Needless to say I need a little more fuel. My car made 505 on a dynojet that is notoriously stingy. If I were you I would get some 60 lb/hr injectors a BAP or fuel pump and pulley down to at least 4.25 maybe a little smaller and get a tune. Go ahead and add a 2 bar map sensor while you are at it. The factory GM unit from the cobalt SS is a direct plug in.
