i havent fully decided, i have some preliminary ideas on a direction but since itll still be about 2-3 weeks before it gets tuned and really boosted on itll give me enough time to settle on something haha


hell yea !! ive done and still do a lot of research on them and see them on a lot of other cars, i think this is going to be a pretty fun set up, just great quality stuff and well designed .. what is your set up? and when are you seeing good boost?

 

What size is the turbo? The one you were test fitting was an 82mm but you said you may not go with that size.

 

Yea that one from the earlier pics was the s482 ... the one I'm running in a s476 .. same frame and race cover .. but mine has the FMW 11 blade wheel and a smaller hot side. . Agree though . If I ran the 82mm it would deff spool like you said before haha

 

Do you have the 74/83 turbine? If so, you have a very similar turbo as what I have on my car right now. So, I know a little something about spooling these bigger turbos.

Do you have a 4.11 final drive or still factory 4.56?

 

I have a 71mm compressor and a 75mm exhaust and it spools greattttttt

 

Oh nice man thats bad *** !!! what's your set up? Like motor set up, compression, turbo AR and flange? Any nitrous? And what do you mainly do with the car?

 

And this is also the info that is always nice to have haha .. when are you starting to see boost vs full boost? And what is your motor set Up?

 

General rule of thumb here is that unless you are planning to run over 50lbs of boost, the larger turbos like a 7175, 7475, 7675 have ZERO advantage over a turbo like a 6466 or even a 6766.

Once you make 50+ lbs of boost, the larger turbos will power away from those smaller ones. But, then you run into all kinds of issues with keeping the cylinder head sealed up. Our motors do not have enough bolt-holes per cylinder for running really high boost pressures, IMO. Even using the good h-11 studs isn't going to last at consistent 50+lbs. The only real solution at 55, 60, 65lbs (where the larger turbos shine) is to go with 1/2 inch head studs, like what Boostin' Performance sells.

http://shop.boostinperformance.com/p...t-headstud.htm

Also, I asked you about the final drive because the 4.56 does not load the car hard enough in the lower gears to get the turbo lit. If you have the 4.56 you won't hardly make any boost in first gear by the time you get to 9500rpm. Trust me, I've been down this road. You need the 4.11 to get it going in the lower gears.

 

I guarantee you it doesn't spool anything like a 6466 or even a 6766.

 

my turbo is a k31 borgwarner "same specs as s471 with billet wheel" with a machined k27 turbine housing from the chev truck During testing I was on a 1bar spring and it open the wastegate at 5500 in 3rd untuned.

 

^^^Turbo is bigger than the damn head! lol...

 

Haha damn that's too sick looking

 

Good luck with your build, and let us know if you need anything!

 

That's a serious build!

Like those rods

 

Post up the new pics slacker