Rb25det basic turbo upgrade???

[jc0526]

Hello, first off I am running a factory rb25det turbo in a differant motor. I am looking for a turbo that will support 350 to 400 rwhp and my only real requirements are that the turbo use the factory manifold and that I can use the factory down pipe. Motor is aprox. same displacement. still 6cyl. I have upgraded the downpipe to the divided one. the point is I modified everything to to fit this turbo and I am now wanting more and do not want to have to modify everything again. I am curently building 16psi by 2400rpm. I know the larger turbo will kill this but plan on upgrading the cam also to move the powerband up in the 3500 to 6500 range as i am shifting at 5000 to 5500 right now.

thanks everyone

[Joe]

good luck, not many turbos have a downpipe bolt pattern that share the RB one.

[jc0526]

i could live with having to get a new down pipe if I have to

[Joe]

good, then all you need is a T3 flanged turbo. theres lots of those.

[jc0526]

i also have an sr20det in my 240sx. I am looking to go to the gt3017 or gt3076. i was thinking about these but the turbine is a t25/t28. I cant seem to find one in a t3. what am i missing. should I be looking some where else.