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MotorGround >> Attn: Ponyboy re: Subie turbos


7/6/09 8:52 AM
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Mark1
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 Can I simply swap a VF39 or VF34 in place of my stock TD04 on my EJ25 without upgrading the fuel pump and injectors?

I know i'd need a STI TMIC and uppipe, but I believe that is it.

Any feedback is welcomed.

Mark
7/8/09 9:04 PM
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Ponyboy
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I'm sure there is a topic that covers your exact needs such as a topic in which someone wants to run maximum boost with stock fueling is unbelievably popular regardless of car make.

Whenever I want to know the limitations of the stock fueling system of a car, I lurk at the various forums or use very specific searches in google

I don't really have much subaru performance experience on cars beyond the old 1.8 XT turbos and the fact that I did plenty of dealership work on the later ones.

Here's a good starting point on turbo size for that car.

http://www.wrxtuners.com/forums/f95/what-turbo-should-i-get-read-before-asking-20013/

And another forum that should be helpful.

http://www.clubwrx.net/forums/engine-modifications/80872-engine-performance-faq-read-me.html
7/8/09 9:07 PM
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Mark1
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 thanks.

I am just trying to prevent the domino effect from starting like it always seems to do...

Mark
7/8/09 9:49 PM
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LetsTalkItOut
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I'd recommend checking out http://forums.nasioc.com/forums/ also.

I think it's the biggest Subaru forum with like 200,000 members.
7/12/09 3:30 PM
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White347LX
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Mark1 -  thanks.

I am just trying to prevent the domino effect from starting like it always seems to do...

Mark



Get the biggest turbo you can find on there, then build a fuel system piece by piece to support it. lol

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