You think?! Typical ricer
Mitsubishi makes a good turbo, but I would guess that 15psi is about tops for that unit efficiency-wise. They are known for quick spool up and good low-RPM power. I'm running a Garrett T3/4 hybrid. It doesn't really start to spool up until about 3k RPM, but then it really takes off and produces max boost at about 6k RPM. It's good up to about 22psi if you can keep the combustion chamber temps down enough. How big an intercooler that thing got? That is my next performance job, either a Spearco air-water intercooler, or a huge front-mounted intercooler. I can't keep my intake air cool enough right now to sustain much over 15psi.
Is that thing easily tweakable? On the old Saabs you can adjust max boost pressure and rise rate by tweaking 2 potentiometers inside the turbo ECU. (You can also solder in new resistors and go even higher
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