6ltr

Nothing more than 18-20lbs, And not exceeding 7k rpms (If i can acheive that safely)

deeloc1

iTrader: (20)

Auto or manual trans with your hp goals? And at 18-20lbs i would go ls9 gaskets and not think twice. If you are wanting that much rpm without the turbo running out of air you should probably go with a 80mm turbo...s480 with the 96mm turbine and t6 1.32ar. My goals are 900-1000rwhp through a th400, built 8.5 Grand National Rearend and spinning it to 7000rpm. BUT, here's what my build looks like...ARP everything (main studs, L19 rod bolts, head studs etc...), doweled main caps, coated everything (main bearings, rod bearings, cam bearings, coated and hardened Trend performance wrist pins, wiseco boost pistons), Akerly and Childs rings, Oliver Billet rods, Stock crank, Morel link-bar lifters and i still need to buy Manton pushrods. I should be able to beat the hell out of it and have no worries.

What's done to your shortblock? Valvetrain stability and tune will be key...especially at 800-900rwhp and being revved to 7000rpm all the time. Other guys are running stock everything 6.0's but i don't think they are revving them that high with the stock internals. Stangkilr, has a stock 370 with a Turbonetics y2k 91mm making 850+rwhp but I don't think he's spinning it that high either...maybe he'll eventually chime in.

6ltr

ARB hardware everywhere(2000 for the rods) i know i must upgrade to l19's LS9 Gaskets
Comp Cams Lifters
Yella Tera 1.7 non adjustables
Double timing chain
Comp Cams pushrods
Double Springs, Ti Retainers

Block is simply stock crank, Callies H-Beams, Diamond FI Pistons, Topped with TEA TFS 225's 70cc combustion chambers and LS6 intake

I have a built T56, Also i got access to one of my buddies FLT 4l80e with a yank 3600, But i'm leaning towards the t56 since its a street car.

deeloc1

iTrader: (20)

If you stay manual, it will be a lot easier to reach your goals rather than running a 4l80e. Now that you've mentioned that you are manual, i think you should probably go smaller than 80mm. At the expense of losing upper rpm power. Most guys with manual trans run 78mm or less for street cars with your size motor. If you can get the gts76 i would say run that...it appears to have the same potential as the 78mm turbos but will spool faster! The reason why i say that is because you said it will be 100% street!

With single turbos (from what i understand, unless you go twins!) you have to make a choice between a smaller turbo for crazy spool and great power in the lower to mid rpm range (best for a street m6 IMO) or go with a bigger turbo, sacrifice the smaller turbo's crazy spool have power come on later in the upper rpm range and carry a lot further than the small turbo (not very practical on a m6 street car IMO)

This is why i chose to go with Comp's billet-ball bearing 80mm turbo. The Comp turbos spool super fast and their billet compressors kick butt too! The problem with Comp is their straight cut turbines causing backpressure issues. This is why i am going with the gt50 style turbine and why killer-ls1 went with a gt55 style turbine. Using these turbines on the Comp turbo seems to have cured the problem. I'm trying to get the best of both worlds with my combo...crazy spool and high rpm power. I'm able to make up the turbo lag with my stalled auto trans...you can't with a manual on the street...on the track you can! Take a look at this thread it will answer a lot of your questions!

https://ls1tech.com/forums/forced-in...ls-trends.html

Sarg

iTrader: (6)

But also a $3500 turbo compared to the Borg coming in at $699. Just depends on your budget I guess, but the Borgs he could get into a billet wheel 76 or 78mm turbo with the 87 or 92mm upgraded turbine wheel and probably perform phenomenally even with a M6 for under $1600. Any of those options are 1000 hp potential. I personally have just always liked the Borgs and been impressed by their spool up and performance. Or go with smaller twins and have a nice little combo.

deeloc1

iTrader: (20)

My turbo was not $3500...lol! It was initially $1700 and change...that included the billet wheel and ceramic ball-bearings! I decided to polish my compressor housing and go oil-less, which took the price to $2300 and change. Now, looking back and knowing what i know now, i would have went with a Bullseye s480 with a batmo wheel and cover for around the same price after tax and shipping...you live and you learn! If you do go twins, comp has budget turbos like stated earlier.
http://www.compturbo.com/products/entry_level_series

6ltr

I just sent a PM to INTMD8 to check speed inc kit, If for the long run and street fun a twin kit is they way to go i "MAY" go the twin route, But if i'm sticking with a single Either comp turbo, BW or PT 7675CEA, I'm really leaning toward twins after reading INTMD8's Thread..

Just waiting on his reply.

Sarg

iTrader: (6)

My bad, maybe another guy with a comp oil less.

deeloc1

iTrader: (20)

Honestly, I would only consider Comp for budget twins for now...they are still trying to figure out turbine issues on our motors with the mid-frames and large frames. In order to get a turbo with their gt50 style wheel or gt55 you are probably gonna be near $2700 or more for a CT5x or CT6x. If they come up with better turbines for their CT43 series or the CT5Z (CT43 with CT5 compressor housing) then i'd recommend them. Right now the only thing the CT43 and the CT5z are not having issues on is the 5.3 ls motors. Anything bigger has backpressure problems unless you go CT5X or CT6X which has the bigger gt50 or gt55 like turbines.

skinnies

iTrader: (33)

855rwhp thru the auto, very simple setup...

JY 5.3, gt2-3 cam, head studs, ls9 gaskets, ls6 intake, stock tb, good pushrods/springs...so thats stock heads, stock oil pump, stock rod bolts, etc. Running 24.5lbs of boost to make the 855rwhp on e85, 3 walbro pumps and 80lb injectors(maxed out) This is with the Precision billet 7675 turbo, boost is INSTANT with this setup, on the footbrake I've made 14lbs of boost with the PTC converter.

stock48

iTrader: (17)

Numbers in sig with 2005 6.0L mild hand ported stock valve 317's, GT76mm turbo, JFR Isky triple 12 cam. This is a full weight full accessory daily driven 4x4 truck. If you check the et/mph vs weight numbers it's pretty nasty for what it is lol

Bigtoyz

iTrader: (2)

When I talked to turbonetics and said I wanted 500-600rwhp street, and wanted to do 800-850 rwhp for track they said the 88 turbo. But after talking with a friend of mine that is from the Grand National world from back in the 80's I'm going with Turbonetics HP58 twins. And he is doing twin 62's in his LS2 in a 68 tube chassie big tired camaro for low 9's.

There are really only 2 turbo manufactors out there Garrett and Borg Warner. Turbonetics and Percision are mismatching the housings with the turbines. Turbonetics is Garrett and Percision is BW turbos. But honeywell is coming out with some new type of turbo now also. Think they are still in the testing stages not sure on that though.

Sarg

iTrader: (6)

Skinnies did you use any meth on that combo?

skinnies

iTrader: (33)

I had meth on it for a VERY short period of time when I had the small procharger intercoolers before I decided to go with a big fmic and figured out how to still hide it.

Turbo2L

iTrader: (1)

Care to cite your sources on this? I think you might have gotten some misinformation.

6ltr

I'm interested too.

6ltr

Who builds F-Body 4th gen Turbo kit, beside KTYP HURON and Modular Turbo?

I contacted the 3 of them, Huron and modular they dont have any T6 kit and wouldn't do any of them in the mean time too busy.

Any other shops?

6ltr

That means you're pushing 1020ish FWHP thats impressive number from a GT76 man!!

More info on the turbo setup?

DrTurbo

iTrader: (3)

The GT76 is no slouch.

DrTurbo

iTrader: (3)

Here is a customer of ours with a lowly Garrett GT5018 we built for him. They are offered in T4 and T6 ....enjoy