WS6FAST

iTrader: (9)

im planning on picking up a sts kit with a 67mm turbo. was wondering if you guys can help me out with the best setup to get the most out of it without forging the bottom end. so what do you think would be a good setup with the heads, cam, fuel system(injectors,pump,rails if necessary) and exhaust... just curious from all you experts and also opinions on blow off valves which one has best performance and sounds decent at the same time..... thanks for the help, much appreciated....

Cchris1109

iTrader: (11)

6.0L heads, 42 lbs injectors, 7 lbs of boost, walbro 255 pump, i choose a 4l65E for the added stress of boost. Wideband/boost guage and a good tune should make you last forever

99Z28LS1

iTrader: (4)

sounds about right..... i would go 8-9psi with the 6L heads, but dont go and push it to 10 or above. should make close to 600rwhp. dont forget a custom turbo cam. i got one from TRT. you'll need springs and rods too and a DAMN good tune

navymitch12

iTrader: (1)

what they said

WS6FAST

iTrader: (9)

any recommendations on the wideband and exhaust ???

navymitch12

iTrader: (1)

wideband get the aem its a great unit

exhaust...stock manifolds, maybe a little better ypipe, magnaflow ipipe. Or just keep the stock exhaust and wrap it good...thats what i did and it works fine. About to ditch the cats and get the stock manifolds jet hot coated.

WS6FAST

iTrader: (9)

does the manual boost controller work just fine, especially if i just want to leave it at a certain boost level ???

RooRnZ28

iTrader: (14)

i have the STS electronic boost controller, nothin special but it works just fine for me. i can switch between 5 and 8 psi.

99Z28LS1

iTrader: (4)

theres really no need IMO for that. i run 7.5psi(given if i dont have an exhaust leak) all the time, no switching or anything. do what mitch is doing, stock manifolds with better ypipe and a custom i pipe for clearance. and wrapp everything after manifolds.

AEM wideband works great, i have it

WS6FAST

iTrader: (9)

does anyone know what boost levels you can switch between with the manual one ??? and do you guys run any other gauges other then the wideband and the boost ???

pdanrichey

iTrader: (4)

Manual one...whatever you want. I have one I'd sell you if you want...an electric one also.

You can run a fuel pressure or oil temp gauges...those are just luxuries IMO.

I have ALLLLLLLL stock parts on my engine except patriot dual valve springs.

The heads and cam would be nice, but you'd be pushing the limits of the rest of the engine...mostly the piston rings and/or pistons. They tend to let go around 550rwhp+.

WS6FAST

iTrader: (9)

so with a sts 67mm turbo system on a stock bottom end the best set-up that you F.I. experts helped me come with is some 6.0L 317's for the heads, a cam in the range of 224 224...580 580 with a 114, 42lb injectors, racetronix fuel pump kit, go back to stock manifolds,better ypipe and ipipe, with a boost guage and aem wideband and the manual boost controller should be fine running a flat 8lbs. , with that said i should be in the 500rwhp range, does that sound about right ???

NYSS Guy

iTrader: (1)

Unless I missed it somewhere, you're gonna need something to cool down your IAT's. Either meth or a front mount IC. A fuel pressure gauge is a good thing to have too. The last thing you want is to run out of fuel while at 8 psi. With a fuel pressure gauge you can keep an eye on it to make sure your pressure is staying constant.

Also, just so you know, if you end up pulling the cats, the car will be really loud. Also, are you M6 or auto?

WS6FAST

iTrader: (9)

yeah i dont have cats on the car right now, should i put them back on, how loud are we talking, and i have a m6.....

Travizzle

iTrader: (1)

Very loud and raspy. I put a magnaflow bullet after the turbo. The bad thing is, the turbo whistle goes down alot but it gets rid of the raspy sound.

pdanrichey

iTrader: (4)

I don't mind the sound on mine...no cats either. On the highway, you don't hear much. And when you stand on it...all you hear is TUUURRRRBBBBOOOOOOO...

NYSS Guy

iTrader: (1)

Mine was loud enough that it annoyed me, very raspy. I have a Borla XR-1 after my turbo, but that didn't quiet it down much.

Ironically, I had to pull my cats cause I got a 2 step, which is what I was going to suggest for you...but you have to leave the cats off. You'll also likely need a better clutch. Ahhh, the joy of FI...it just keeps adding up. Just wait til you want to turn up the boost!!

WS6FAST

iTrader: (9)

i have the built t56 with a spec 5 and a strange 12 bolt with a full spool and 4.10s in it. i wasnt gonna go with the spec 5 but it came with the tranny that i bought here of ls1tech. i dont mind it much because i dont daily drive the car but if i did i think it would get pretty annoying, not really a daily driver clutch.... hmm does anyone have sounds clips of what theres sound like with muffler after turbo and without ???

NYSS Guy

iTrader: (1)

I don't have any sound clips. But, how do you feel the 4.10's are gonna do with the turbo? I stayed with a 3.42 to load the turbo a little better. Other than that, at least you have the drivetrain pretty solid. Good luck with it.

WS6FAST

iTrader: (9)

thanx man. can anyone help me come up with a custom grind for a cam for this setup, i've been reading up and i here cam selection is a big factor in your car running strong and putting out nice #'s, so i want to know if you experts can point me in the right direction in that field or come up with some specs for this set up ?