mg98ta

iTrader: (20)

How much power will my combo make? My set up is in the works right now. I have a 02 LQ4 6.0 (stock bottom end), 02 ZO6 cam, LS6 intake, 90mm TB, 6.0 manifolds, Precision Ind. T-76 turbo .96 A/R, front mount setup. I've upgraded to Katech rod bolts. I'll be running a built 4L60E, Vigilante converter, and a 9 inch w/high 3'ish gear. Does anyone see any problems with my setup or places where I need to upgrade? This is my first turbo build. I'd like to see close to 700 rwhp. That's close to my goal anyway. All info and input is appreciated.

hellbents10

iTrader: (10)

It will make what you feel comfortable with. On pump I would stay under 550whp to keep from breaking the pistons. With good fuel I have broken 700whp on a hand full of stockers and had them last for a long time. The turbo will get you there though.

DrTurbo

iTrader: (3)

The PTE76 will get you there for sure...but I would listen to what TJ just posted. Pistons and rings are the first things to go.

geeteego

iTrader: (1)

O hai #7 ringland...yup, what they said.

extremetoy

iTrader: (17)

sorry to barge in but what power level could you reliably push with that setup but with forged pistons, what do the stock rods typically old up to?

mg98ta

iTrader: (20)

That's a good question extremetoy. I'll also being running a meth injection kit. I know that will help. Would it be possible to run pump gas, spray the meth kit, and make close ta 700rwhp? Or I could mix pump & race and spray the meth kit.

hellbents10

iTrader: (10)

I have not broke one from hp yet myself, all though looking at them I would not trust them to hold on for any more then what the pistons can. I imagine one little bit of detonation would kill both the rods and the pistons with more then 700whp.

mg98ta

iTrader: (20)

So on a conservative tune and pump gas, stay under 550hp. With race gas, meth, and tighter tune, close to 700hp.

hellbents10

iTrader: (10)

Yes, still at your own risk, I have done it with a handful of engines w/o a problem. Remember it could be scary to drive over your rotating assembly with some good speed.

mg98ta

iTrader: (20)

LOL Yea, that wouldn't be good. I just noticed your post under ur banner for the 825whp LQ9. That's awesome. Is that on race gas only? I thought about forged pistons & a good set of rods. I just think it's kool ta use the stock short block and make gobs of power.

hellbents10

iTrader: (10)

Yes race gas and meth, no point in trying to break it with crap gas lol. I am with you there, making power with junk is fun.

ls1408cp

iTrader: (37)

I plan on doing it with a 5.3 soon. All meth no intercooler.

kbracing96

iTrader: (25)

Stock48 over on performancetrucks.net found the limit of stock internals on the LQ4 when tuned properly. His was a stockish, (cam and hand ported 317 heads) long block and a T76 turbo with a .68 A/R housing. Ran in the 10.50's at 127-129 I believe in a 5000lbs, reg cab 4x4 TRUCK, at 5000ft elevation! Pushed the motor to the limit and finely failed the rods, not the rod bolts, not the pistion, but the rods! Every rod in the motor was bent, S-shaped or broken when it failed. Good old number 7 piston was still intacked and showed no sign of detonation. I saw the carnage with my own 2 eyes. He was running a mix of 75% 91 and 25% E85 and no meth.

ls1408cp

iTrader: (37)

any ideal on what kind of power it was putting down?

ls1408cp

iTrader: (37)

I just messed with a race calculator and making the same power in a 3200 pound car it said 8.9 151mph

kbracing96

iTrader: (25)

Here is some of his post over on PT.net, I miss spoke, truck weight was around 4900 and his mph was around the 124-125 range with a 10.58e.t. Oh, and he did end up putting meth on it.


Older dyno pull

http://www.performancetrucks.net/for...d.php?t=411653

Vegas when it set a new best and then broke the next run.

http://www.performancetrucks.net/for...d.php?t=418131

Carnage

http://www.performancetrucks.net/for...d.php?t=419390

needaz28

iTrader: (15)

wow, that about answers all my questions.

I'm planning on a lq4,z06 cam,stock 317's with some valvetrain work, masterpower gt42. looking for @600 on 50/50 e85/91 meth. should be no problem.

if it last a season I'll be happy. (season is like 9 months in AZ)

52172

iTrader: (2)

everyone should just forge their bottom end or limit their boost to 10lbs. I understand money is the issue, but if your gonna blow the stock bottom end you gotta have money to replace it unless you plan on stripping vehicle of turbo kit and selling without motor?

ls1408cp

iTrader: (37)

thanks for the links. Looks like he even pushed it far for pump gas with a little e85. Somewhere some one said the 5.3 is stronger then a 6.0 instock form. Is their any truth in this statement?
As cheap as 5.3s are I might just try to get a deal on two so i have a spare and after the first one breaks I will know the limit. After reading some of Parishs post and others timing seems to play a big role in making them live.

needaz28

iTrader: (15)

yeah I wanted to do a forged set-up, being married with a child things get tight some times and saving 5 g's for a motor is hard. getting a jy motor for 700 and having it last 5k miles I can handle (5k miles is almost a year and a half for me)
buy the time the year or so is up I'll have enough for another jy motor if I need it. it's easy to put away 25-30 a week for a year so I can enjoy my car, the way I want to.

but thats just me, I'm young and barley clear 50k. :shrug: