SPooNGTP

how much boost could an 2rz engine handle with just intake and exhaust mods the turbo's set at 7-8 psi will that be to much if so does anybody know what it can handle without further supporting mods im assuming any more then 5psi im gonna need to do more mods???

oly884

um, I'd say that you would definitely need fuel mods to run 7-8 psi. I'd imagine being able to get away with 5 at most with stock fuel system.

New injectors, piggy back ECU, and new fuel pump. I don't know much about forced induction, but I know there are plenty of other members that know. Ask Gadget.

Bumpin' Yota

*sigh*

psig is only 1/2 of it.

8psig from a 130mm turbine is going to flow a ˟˟˟˟˟load more air than 8psig from a T67 (67mm) turbine.

However if you want more than a 40hp increase, youd be best served by doing the above [7th injector/larger injectors, piggy back, PYROMETER!!, boost gauge, intercooler/WMI, walboro fuel pump, FPR/FPU, and a TON of dyno tuning.

trangk

With a high flow fuel pump and an FMU you can get away with 7-8psi without any issues if you're running an intercooler. Get tuned though to be safe. I've ran on this sort of setup for a year without any problems before I upgraded. I wouldn't try more than 10psi on stock setup though.