Hi iam almost done with my s2000 build and Im a little curious how many pounds i can pull out of my gt30.

Thanks,
Zach

 

Check the compressor maps that are available. The power output can vary. It's not just about boost pressure

 

On my 84mm gsr I was getting around 28-29psi spikes but it will hold 23psi pretty solid. HP/TQ is in the sig.

Trackmasters has a s2000 in the shop right now with a 3076r on it. PWR water/air setup which turned out to fit pretty good. The motor isn't built so we probably won't go over 400whp but i'm pretty sure he should be able to make that around 16psi.

 

inlinepro's turbo kits use a 3076r and they all make in the mid 400s on just a head gasket that bumps the compression down to 9.1. im running a 10.1 piston in mine though, idk how big of a differance it will make pwr wise.

 

I'm using a GT 3076 and changed to a .82 AR. On my H22 (10:1 Arias) it makes 440 - 465 whp @ 18 psi.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by purpleh22 &raquo;</TD></TR><TR><TD CLASS="quote">I'm using a GT 3076 and changed to a .82 AR. On my H22 (10:1 Arias) it makes 440 - 465 whp @ 18 psi.</TD></TR></TABLE>

That's about right, and is easily obtainable in a .63A/R. turbine housing size changes back pressure and shifts the output curve slightly. Until you get to the larger framed turbos, the housing size b/w .63 and .82, to me isn't all that much.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by purpleh22 &raquo;</TD></TR><TR><TD CLASS="quote">I'm using a GT 3076 and changed to a .82 AR. On my H22 (10:1 Arias) it makes 440 - 465 whp @ 18 psi.</TD></TR></TABLE>

I also have the .82 on my h22 with 9:1 CP's making 422 at 19psi dropping to 17 at redline