HI, I RECENTLY GOT A '01 S40 t4 but i really dont know anything about the turbo specs....
could someone tell me what t4 stands for...? how many psi i have? i need technical info about the turbo....

thnx

whats the turbo code?

As far as I know T4 just stands for Turbo 4-Cylinder. The V70 it T5 because it is Turbo 5-Cylinder.

ok, but how do i know the factory psi for a s40 t4 2001?