aaronware76

iTrader: (2)

Hey guys, I added a peak speed ported fast 92, nw 92 tb, Gm 85 maf, dual 3" in single 4" out flow master merge, volant cold air and a new tune. This was replacing a Bbk intake, ported stock tb, k&n fipk, and stock kooks y pipe. Stock 100k mile bottom end ls1 with prc 5.3L heads and Tq V3 cam. Old bolt ons made 435/404, new bolt ons make 460/424. But, this is with an afr of about 12:1. My tuner wouldn't lean it out any more then that.

aaronware76

iTrader: (2)

I posted this over this past summer but I wasn't able to attach the graph to it. Now since I was able to, I reposted it.

DietCoke

iTrader: (18)

find a new tuner. good #s though

john563

iTrader: (17)

ive got those same heads with a fst 90/90 but cam is a 232/238 and my numbers were 435 405 too..that was with hooker 17/8 headers but hooker y pipe..i since added a mufflex y pipe flowmaster merge and 4inch dump..no clue what it makes now..don't know if id gain as much being an A4..but thatnks for posting makes me feel comfortable that I may have gain some

aaronware76

iTrader: (2)

It peaked about 6200-6300. He took it to 6800 I believe. He said the afr was at 11.1 to keep the heads cool and everything safe. His graph showed 12.1 tho. I know there's more power in it.

Jimbo1367

Those graphs are worthless IMO.

93camaro_zzz

iTrader: (13)

You've heard of "pig rich"? 11.1:1 on a H/C car at WOT is what I like to call "Donald Trump Rich". You easily have 10-15 more hp left in the setup. So with that said. nice numbers on what the car SHOULD make! lol

redtan

iTrader: (5)

He stated 12.1 AFR, while that's still pretty rich for N/A...it's not "pig rich".

Still though, he could gain some decent power from leaning it out to say 12.7 and still be very safe.

aaronware76

iTrader: (2)

To be honest, I was hoping for more power considering I've spent a lot of money and attention to detail while maxing out my combination. I would've loved to be closer to maybe 480rwhp and that's what I was hoping for. But this is also through a 9" with 389 gears and 315 nitto dr's. My tuner is more of a forced induction guy and a likes to keep tunes "safe". I don't know if it's worth going back at this point and asking that he lean it out some more. I am very hard on the car, maybe this "safe" tune will give my motor some more longevity.

redtan

iTrader: (5)

Doesn't really matter if he's a FI guy or not, he should know where NA cars make most power.

And like I said, even mid-high 12s is safe as long as it's a good tune. But if something goes wrong, like you lose an injector, it doesn't matter if you're "safe" at 12.1 or at 12.7...you're going to have problems.