IHI VF39. Swapable with no problems. Read here-Originally Posted by aznburn210
ihi v39 OK for 03 WRX?
Yup. I like the Mitsu-based ones, not the IHI's, but to each his own. If you really want one you can probably find it cheap since they come on the STI's.Originally Posted by aznburn210
Compressor maps and how to read them-Originally Posted by aznburn210
Turbo Type ----------- Approx flow @ pressure
Stock Turbo ---------- 360 CFM at 14.7 PSI
I can't find the vf39 in there, but I can tell you a lot of people upgrade to a vf34 or vf22 (even that isn't accurate). Everone has a different goal in mind.
IHI VF-22 ------------ 440 CFM at 14.7 PSI
You have a lot to learn, but we all started somewhere. Learn to search more, then if you can't find the answers, post up and ask for help. Learn about your car first, then mod it.
Start by reading this thread-
Engine Performance FAQ [[[READ ME]]]
Get the basics done first (exhaust/ecu/gauges) then worry about upgrading. You might change your mind on which direction to go. Don't forget 300 is the limit. After that, the wrx tranny will start to break apart.