ummm, maybe i am reading this wrong.....but this is for a Supra right? a T78 can easily be tuned to over 30psi......but like ScrewDrvr said (sorta) i would stick to a smaller turbo or save until you can upgrade the fuel system at the same time there isnt any reason to run that big of a turbo and only run a max of 13psi , at least not that i can think ofmr2jzgte said:Thanks for the reply.
Do you think that 18psi is too risky?
I've heard of 15psi, but 18? Can someone that has a T78 chime in and let me know how high their boost goes up to?
I dont think either turbo can achive that... safely on pumpgas...95240sx-2jzgte said:someone mentioned the sp67 further up in the thread, i was wondering if its true that it will make the same amount of poer as the t78. i am looking to make around 600 rwhp on 93 oct and its gonna be a daily...which turbo would be better the 78 or the 67 thanks Dane
Im not running a T78, but im dynoing around 455 rwhp @ 18 psi in this weater now. no FDBP yet either, Im not going to need that unless i surpass 475rwhp, in which the stock fuel system starts approaching its limits. good luck on a turbo selectionmr2jzgte said:Thanks for all your replies.
ToyoBeastly, what I had said was that 18psi could of been too high for the engine being that I would run stock fuel.
neonafk thanks for the advice. I really appreciate it. BTW, how much are you dynoing? Do you have the FDBP mod?