Turbo Question

[EVL-R33]

I've recently got a PFC tuned on my RB25DET and am getting 224rwkw @ 22psi with the following mods:

HKS 2530kai turbo

Custom TuneAgent s/steel exhaust manifold

Split dump pipe + 3" Catback

FMIC

Bosch 023 fuel pump

PFC + HC (currently on 40deg and 80% stock injectors duty)

Z32 AFM

Turbosmart T-Piece boost controller

Also purchasing SARD 550cc injectors..

Mid range power is really good with the HKS 2530, but I want more peak power and if possible to have good/decent mid range aswell..

My question is, what replacement turbo can I buy to get around the 260/280rwkw range with my current setup (preferable side mount bolt on)?

[Dynamix]

Get some good camshafts and cam gears, that should solve you problem. Get some tomei poncams, they'de be perfect for you application.

[paulr33]

have a look at roy's rb20 setup, wont be cheap but will give you plently of midrange

im not sure cams will help you

[EVL-R33]

Get some good camshafts and cam gears, that should solve you problem. Get some tomei poncams, they'de be perfect for you application.

My tuner told me that, apparently the 2530 is maxing out and i need a bigger turbo to get better peak power..

[EVL-R33]

basically my question is, whats the biggest size turbo that u can buy which is a bolt on for the RB25DET (besides a highflow, which might be my second option down the track)?

[Dynamix]

have a look at roy's rb20 setup, wont be cheap but will give you plently of midrange

im not sure cams will help you

They will help. They did on my good mates car who had neally the same setup and power levels as he does, worked a treat on his car...

[Dynamix]

basically my question is, whats the biggest size turbo that u can buy which is a bolt on for the RB25DET (besides a highflow, which might be my second option down the track)?

For your target levels a HKS GT-RS would be neally perfect, or a garrett gt3071r.. as for the biggest turbo, it would be something massive enough to blow your motor to piece's, wreck its drivability and be as laggy as hell.

[EVL-R33]

For your target levels a HKS GT-RS would be neally perfect, or a garrett gt3071r.. as for the biggest turbo, it would be something massive enough to blow your motor to piece's, wreck its drivability and be as laggy as hell.

The HKS GT-RS is an option.. but im not sure if the Garrett GT3071R is a bolt on for the RB25DET? what flange does it have? And im definately not going to just whack on the biggest turbo I can find without working the internals, I just want 260-280rwkw..

[Dynamix]

The HKS GT-RS is an option.. but im not sure if the Garrett GT3071R is a bolt on for the RB25DET? what flange does it have? And im definately not going to just whack on the biggest turbo I can find without working the internals, I just want 260-280rwkw..

I'm pretty sure you can get the GT3071R bolt on internal gate. There's a few people running them on here, i'm sure they'll ad comments in due time