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i need help i have only recently bought an 1993 r33 gtst and was wondering what sort of boost levels are safe with the standard turbo...

i have an aftermarket greddy front mount though will this make a difference

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You need supporting mods but a High flow will do exactly that. It will be just as responsive. Or if you got money...nothing compares to GT-RS.

Torque everywhere on less boost.

But to your first question. 10-11psi is good.

Mines set at 11 and rises to 12.

in answer to your running lean part of the Q. with that little bit more boost the standard computer should be able to compensate for the extra air flow by just pumping more fuel.... with any mods make sure u keep it balanced, if u start pumping more air in u gotta next look at how to get more fuel in there.

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