tspence45

iTrader: (30)

Car's going to Speed Inc in the morning to get the dynotune finally. Just looking for some estimates before it gets tuned in. The car is a 6speed with stock 10bolt with 3.42's (Working on 8.8" rear with 4.10's, but obviously won't be done and installed by morning lol).

MODS:
6.0 LQ4 stock shortblock with fresh rebuild (ARP rodbolts, all else stock)
TSP 231/236 .644"/.613" 111LSA cam
Stock L92 heads with PRC EHT .675" lift valve springs
Stock LS3 intake/rails/injectors
SLP lid
Ported MAF ends
Nick Williams 92mm TB
Ebay 2 3/4" primary/3" collector stainless LT's
3" Xpipe (no cats and Borla ProXS mufflers)
RPMSpeed 255LPH fuel pump
Racetronix fuel pump hotwire kit
Spec Stage 3 clutch

Any guesses? I'm hoping for ~480rwhp, but that may be wishfull thinking. Numbers with a video and dyno graph should be posted sometime tomorrow night, whenever I get back and have time to get them put on here.

Nitroused383

iTrader: (10)

472 rwhp @ 6400 rpm 437 rwtq @ 5100 rpm.

tspence45

iTrader: (30)

Well, everything felt like going wrong today when we put it on the dyno. Fuel issues, big time. I lost pressure at around 6k rpms, so they had to shut it down. Not to mention, when I first got there, they had to have a new MAF brought over from the dealership, because they wouldn't tune it with the ported MAF ends. Luckily, they got me a bigger MAF, so I'm not as worked up about having to get a new one. Figured we'd be good to go from there, but of course not. So, a long trip, and a lot of money wasted for nothing. Looks like I need to get some fuel issues worked out before finally getting her dynotuned. Definately not happy with how everything went though.

03EBZ06

I'll say 450/420 because you have the L92 heads, w/great midrange and a top end that dies off fast from the 111 and shorter exhaust duration. You could be right on the 480. Those heads are performers for sure.

tspence45

iTrader: (30)

They weren't able to mess with the tune much, because of the fuel pressure issues. But, the run they started on, with a base tune hit 418rwhp@~5600 and 392rwtq@~5000-5100. Then, the fuel pressure dropped to 30psi, after that. So, they shut it down, and just did a little tweaking to make driveability a little better for now. But, it looks like I need to change this damn fuel pump already. This car is a damn money pit. I am happy they had a GM 85mm maf sent over from the dealer instead of a stupid stock MAF though.

65SSZO6

iTrader: (4)

Any update?

tspence45

iTrader: (30)

Nope not yet. Had some other things come up and haven't been able to get it tuned yet. I think I got all the issues figured out though. Just need to get a fuel pressure gauge and check it sometime soon. Then, I'll get it tuned and have some numbers.