dragracer44life

6.8l ls3. 9.8:1 compression ratio. completly forged motor. wonder how much boost can i saftly run?

TurboAv

iTrader: (6)

What heads and what fuel?

SATAN

iTrader: (2)

LOL better yet, what turbo? 30psi on a 66mm turbo is not the same as 30psi on a 100mm turbo.

dragracer44life

trick flow heads, 93 octane. T-72 turbo. once this car hits one 1psi of boost it just goes sideways. its crazy. lol

HydroStream6

iTrader: (16)

A T72 is very small for a 6.8L. You're going to run into back pressure problems for sure. You'll also run the risk of pushing that turbo too hard. I'd keep it under 8psi if it were me until you get into a much bigger turbo.

dragracer44life

well i had a t60 turbo which worked well, this t72 has 102mm compressor wheel, 1 inch bigger than the t60.

XtremeDime

iTrader: (16)

I believe the back pressure would lie with the turbine sizing, not the compressor. That has to be an odd looking turbo with that sizing...

KILLER-LS1

iTrader: (18)

so its like a 412ci?? my 404 was 6.7l

your compression ratio is higher than mine and I had a bigger turbo: 76GTS

My car spooled up super fast, but it wouldnt really make more power when we pushed it past 15ish PSI.... i think you are going to have some trouble with bigger motor, more compression, and less turbo.

Busy Mopper

iTrader: (4)

Subscribed lol

dragracer44life

its a 416 ci. and my t72 i bought is great.

tripblackls1

iTrader: (11)

What are the actual specs on the turbo and what brand