if i pull my turbo feed off the turbo and added a gauge to it and just left it in neutral and revved it up and stuff, whats the PSI at idle and load the turbo should see, what what is too much PSI at the turbo?

my car at WOT is around 90 psi, but i dano if its that PSI at the turbo feed line.

 

ttt

 

i think a turbo only needs around 30psi , maybe less . i know its not much