VF39 on a EJ20

I was thinking of replacing the turbo on my other WRX with an STi turbo and i was wondering if i would have to change any internals or could i just bolt it on and get it tuned?

 

bolt it up and get tuned. you may need another intercooler though. Bigger injectors too

 

i got the STi TMIC but im getting a FMIC anyways. Would STi injectors work?

 

no, they wont. sti injectors are side seed.unless you mean STI pinks...

and TMIC with the sti vf39 = LAG

stick with a sti tmic.

 

I think he means FMIC

If you're going to do a front mount, you're going to want to use a bigger turbo to make it worth your time.

 

DOH lol yeah fmic.

 

But with a bigger turbo ill need to do internal work right?
ill just stick with the STi TMIC, VF39, pinks, and a tune for now

 

I have a VF39 on my EJ20. It is a very drivable fun car with acceptable fuel efficency. Do you already have a full exhaust? If not make sure you get one before you swap turbos.

 

that should be all you need, well maybe a walbro fuel pump but that should be it. See this link for a dyno graph of that exact setup...Runfile 002:
http://wrxatlanta.com/forums/showthread.php?t=19254

 

Yes I already have a Cobb 3" turboback, Injen CAI, and a Apexi turbo timer. About to order a new VF39, STi pinks, and Walboro 255 and then off to TopSpeed!

 

wow good numbers, ill definitely be doing that setup!

 

for the price it almost cannot be beat.