Just finally got the car down to the dyno today. Basic mods include CAI, muffler, cutout, Mac headers, offroad pipe, electric water pump, throttle body bypass, LT4 Hotcam kit, LT4 knock module, 1LE driveshaft, 1LE intake elbow, throttle body foil, and a descreened MAF...stock heads

The numbers:

Max hp: 338.9 @ 6100 RPMs
Max Torque: 351.7 @ 4200 RPMs

A/F mixture was near 13.2 the whole time...anybody have a clue on what the WOT A/F values should be...seems a tad bit lean to me???

Thanks

 

those # sound about right, the WOT a/f ratio should be 12.5-13.0
Jesse

 

thats pretty nice.. did the rocker arms clear the stock valve covers?

Who did your tuning? Because Im looking to so a setup much like yours except ported heads. Do those headers have all the hook ups for emissions?

 

Those sound like pretty good numbers from a Hotcam kit on a bolt on LT1.

 

I used the stock valve covers and didn't even have to clearance them. They don't hit at all. I had Bryan at PCMforless tune the car for me and it looks like he did fairly well. Perhaps I could enrichen the A/F a little bit and grab a few extra ponies, but I don't think I'll be worried about it for now.

I'm pretty happy overall as I thought I would see about 320 or so...

Thanks

 

did you have him edit out your AIR and EGR? or is all that still functional?

 

your numbers look good man. What rockers are you using 1.6 or 1.7's?

 

Yeah, the AIR and EGR functions no longer exist. They were edited out and I removed them off the vehicle.

I used 1.6 roller rockers from the LT4 hotcam kit.

 

Nice #'s for a mailorder tune. I think you could get a couple more out of a dynotune but it wouldn't be worth $350-500 JMO Later Clint