Quote:
Originally Posted by wrx4life
hey i had VF34 16g or 18g not to sure, on my gc8 i love it
its a very good turbo 
i wouldn't mind to go a 34 again but i'v got a eg25 so will i need a
bigger turbo too support the more torque?? |
IHI turbos (the vf34 is an IHI turbo) don't use the same exhaust housing setup as the TD's. A VF34 comes with whats called a P18 rear. They can be upgraded with the next size up, p20, which has the same effect. More top end power with bigger numbers at the sacrifice of more lag.
A 2.5 (eJ25) can get away with running the larger rear housings as the extra displacement makes the turbos spool earlier/quicker.