regblkss

Well I just bought a 97 c5 vette. It has a 408 forged iron block with ls3 heads and intake. With epp blower cam. hinson single t76 turbo. And a water to air intercooler. And 60# injectors. In doing research I find that this Turbo is to small for the 408. This is my first Turbo car. And like to make750+ rwhp. I plan on swapping out intercooler to a air to air. What Turbo would I need to feed it. A t88 is what I'm think. Any advise is welcome. Thanks

ModularTurbo

iTrader: (14)

I am not familiar with Gibson turbos do you have a link to where specs can be found?

regblkss

sorry my phone changed the word. its a hinson super cars single turbo kit

MUSTANGBRKR02

iTrader: (91)

What brand of turbo is more important than the size.

I would think atleast a 80mm would be in need though.

regblkss

also i have to have a 3inch down pipe and t4 flange.

regblkss

what kind of power can i make with the t76 i have now on a 408. car need to just be finshed up and takin to tuner. also sd tune or use a maf?

orange88ls1s-dime

you would definately see a gain from upgrading from 76 to 88
i would also upgrade down pipe to 4"

MUSTANGBRKR02

iTrader: (91)

What brand turbo? That 76mm will still be the choke point of the setup though.

regblkss

3inch dp has to stay. No room for bigger. Probably do a cut out once the pipe gets down under the car.

turbo iroc

iTrader: (1)

3 in will hold that 408 back big time. Make the 4 in work, notch or oval if you have too...use 3.5 in at least...

orange88ls1s-dime

i agree