How about the Garrett GT3082(3040R)?
 

Thinking of upgrading my T04 to the new Garrett BB GT3082, but i need som help...

The specs of the turbocharger is:

Compressor
-Wheel: 82mm w/ 56 trim
-Housing: .70 ar

Turbine
-Wheel: 60mm w/ 84 trim
-Housing: .63 ar, .82 ar, 1.06 ar

Wich AR should i go with on my streetport engine? (13B-REW)

I´m after 500-600hp, and should be able to drive on the street.

Please help guys...

the turbine is very small.. . i think you should look for something with atleast a gt35 turbine frame size. especially if you are running a streetport and shooting for 500 let alone 600 wheel

The GT3082 is not a good selection for 500-600hp, way too small. It is also somewhat laggy for it's size because the wheel ratio is quite large. From my experience with it there are better turbos in that size.

Ok, what should i get then?

500R, 600R(not released yet), 42R, of all those the 500R will spool the best but offer the least power. The 42R will offer the your highest numbers but will induce more lag. 500-600hp is a pretty high number what are your intentions for the vehicle?

-S-

Ok, maybe i´ve set the numbers a bit high... But i looked now at the a-spec tuning page.

And maybe the GT35R? How about that?

I dont want it to be a pure drag car. I drive it on the street, and on track... sometimes drag...

I´m looking for high power, but still really fun to drive on the street...

GT4094R, and expect to run 25+ psi.

You're going to have a considerable amount of lag if you want to have 600hp.

Have you ever driven a lightweight car with that much power on the street??

Ya okay... But what about the GT35R?

The best answer for that would be the 500R great response with enough compressor to turn it up high and get good numbers. The 35R T4 with a 1.06 housing will get you in the mid to upper 400's that is more than enough for a very fast and fun street car. Certainly enough to get you into trouble.

500R?

500R will suit you very well.

40R would work too