03 WRX build questions - Subaru WRX Forum
 
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post #1 of 7 Old 03-27-2011, 04:31 PM Thread Starter
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03 WRX build questions

Hey guys, not doing any crazy builds just want to get a new turbo in my 03 wrx, and looking for around 300 whp, maybe like 320 absolute max. Ive got full 3" TB exhaust on there now. Ive done a little research and am liking the vf22 but also have seen/heard about some other 16G's, and i know alot of wrx's run vf39's. Will be running a FMIC as well. Its my DD right now and it will be once i upgrade as well. A little concerned about the stock tranny, but i'll probly end up throwing a new clutch in there. Anyone have any previous set ups or anything that they'll vouch for?
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post #2 of 7 Old 03-27-2011, 04:49 PM
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One of the previous incarnations of my car was VF34 powered with ported turbine and compressor housings, meth injection, Perrin inlet, Perrin SRI and an APS TMIC. I hit 305awhp with that turbo on a Mustang Dyno and it was tremendous fun, spooled like stock and pulled hard to redline, I ran a 12.4 1/4 mile on that setup the only thing I would suggest is that you keep the stock clutch as long as you have the stock trans it's a heck of alot cheaper swap out clutches than it is to all the sudden destroy a gearbox!

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post #3 of 7 Old 03-28-2011, 12:27 AM Thread Starter
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yeah, only prob is i cant get meth in my area so thats not really an option :/ thanks though, anyone else?
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post #4 of 7 Old 03-28-2011, 06:35 AM
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You can do an evo3 16g and get REAL close if not a bit over your goal. Port Polish coat and along with all the additional goodies mentioned. Ported intake manifold would help along with a good tune.

The VF22 can't be rebuilt like the 16g can IF and when you have a problem.

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post #5 of 7 Old 03-29-2011, 07:03 AM
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+1 to using a stock clutch. Dont be so hot on hitting a certain number. Numbers don't mean anything on a dyno, you're after a nice smooth dyno chart. A 300hp car that is tuned will beat a 500hp not tuned. If i were you I would get a 18g. Do your research on different companies, VF22 is older technology and there are better turbos out there for the money. I have ran a VF22, VF39, 16g and then i was really happy with my hybrid engine i built with a 18g on there.

2003 WRX Hybrid build,

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post #6 of 7 Old 03-29-2011, 08:41 AM
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Quote:
Originally Posted by m777WRX View Post
yeah, only prob is i cant get meth in my area so thats not really an option :/ thanks though, anyone else?
Your not looking hard enough, theres plenty of shops in the Tampa/St. Pete area that sell methanol, pretty much any performance auto parts store will sell it on the same rack as the drums of race fuel (same goes for most bike shops) and if they don't have any in-stock they can get it for you.

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Originally Posted by pzr2874 View Post
You can do an evo3 16g and get REAL close if not a bit over your goal. Port Polish coat and along with all the additional goodies mentioned. Ported intake manifold would help along with a good tune.

The VF22 can't be rebuilt like the 16g can IF and when you have a problem.
I actually found a shop in Florida before I left that has found a way to fully re-build VF22s and VF30s and can replace the seals on the BB VFxx's

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post #7 of 7 Old 03-29-2011, 08:42 AM
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