Efficient boost W/O an intercooler

[STARION]

(GVR4 Jspec RS engine, 510cc injectors, small 16G)
OK, currently I have to run a small 16G W/O any intercooler. I need to know an efficient boost to run for now, w/o blowing hot air.

I will have a 1G stock SMIC installed next week, How much boost should I run when that goes in. I am shooting for 17-18 PSI, but am not sure if that would be efficient with a SMIC (there will be ducting to it, so it will have some ok airflow).
(this round of mods will be: SMIC, foam air filter, O2 elim DP and 3" exhaust, Walboro 190, DS-MBC)

 

[allwheelTSI]

well with no i/c you probably should'nt run more than 6-7 with that 16g but once you get the side mount on there you could run 17-18 on the street no problem and 21-22 with race gas on the strip,BTW those Jspec engines are great i drove a GVR4 with one,that was a pretty fast car for being 3200lbs.