S13 N/A SR20DE +++ Turbo Question..

[Mr. Kong]

Good day.

Hope the pro's here could help me out with my tunning problem.

Currently I own a s13 silvia with sr20de. I had the car turboed for 3 months for now and having no problem with it.

Im currently running 5psi only of boost and I want to up it to 7psi.

Is it safe?

BTW, I have a stock sr20de with SARD AFR, Apexi SAFC and Innovate wide band A/R reader.

My ignition timing is set to retard to make sure. Im using also 97octane rating Pump gas.

I live south of th ephilippines where there are no DYNO's and no expert on turbos.

Hop eyou could help me out guys.

To make things short.

How can I boost 7psi safely of what I have and what are the desired tunning to be done to my system.

Thank you in advance.

Best Regards.Kong