I need some assistance on selecting a proper fitted Turbine Wheel and Housing for a mild RB26 that was just built for a mates 32. I'm a 2J kinda guy and know what works best for Supra's. I've tuned a few RB's, pulled a few motors, and had my hands in/around them enough to get an idea, but I've never picked a proper suited turbo for one. I don't know what the engine flows, which makes it difficult. I figure you blokes would know tons more than myself.
The turbo is a CompTurbo TBB T70. T4 divided on a custom stainless header with a TiAL 60mm gate. 18-20 psi on USA crap 93 octane, and 30(ish) psi on VP C-16.
No real power goals in mind. Main goal is to avoid surge, but keep the housing small enough where it'll still spool relatively quickly.
The turbine wheel options we are looking at are Q trim (2.7" exducer), MX trim (2.8" exducer) and SX trim (2.95" exducer).
The housing options in mind are .84 A/R divided, and 1.00 divided.
I have the 4376 TBB with a .84 Q trim on my Supra and I LOOOOOOVE this turbo (Had many turbos prior)
Here's a link for more info.
Comp Turbo CT4370
Thanks again fellas.
