Can someone tell me that max boost one would run with a turbo with the stock fuel pump?

 

its really not safe to run any boost at all with the stock pump but if you have a fmu and fuel controller of some sort id say 4 lbs is a "safe" limit considering that nothing is really safe. the stock pump in my opinion is a massive pos. it can croak on you without warning - ive had two that just died out of nowhere

 

ok thanks, its just going to be temporarty until the GSS342 comes in a couple days.

 

It's going to depend on what injectors you use. If you are staying with stock injectors, it's not going to be much because the stock fuel pump can only generate 60 psi fuel pressure, and it is unknown what the fuel delivery rate is at that pressure. So let's say probably in the ball park of around 3-5 psi.