Thread: boost vs psi

stock boost is 43.5 psi which is 3 bars. i read for each lbs boost add 1 psi of fuel. right or wrong?. if i want to run 10lbs boost then i should run 53.5psi? or is it 1 psi from stock boost

your fuel pressure regulator does this by itself.

i have a TO4 z garett ball bearing turbo how would i know when i max the stock regulator?

I don't think the stock regulator has a "limit". With vac disconnected, it should read ~44psi. Every psi of boost increases the base fuel pressure 1psi as well. If you run a stock det setup, you should see ~51psi of fuel pressure at 7psi of boost.

so im safe to run 15lbs boost on the regulator without no leaning out. I have a sr20de-t.

So long as the rest of your fuel system is good...