STI turbo swap or another turbo question - Subaru WRX Forum
 
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#1 Old 03-31-2008, 10:59 PM
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STI turbo swap or another turbo question

ok some of you have seen me on here and know that i am looking for more power so i have a question not looking to do it just yet but maybe since i have a turbo car already could i drop in a STI tirbo in place of my WRX turbo or any other turbo if not what would I have to do to do this? HELP?
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#2 Old 03-31-2008, 11:33 PM
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To drop an sti turbo (ihi vf 39 or 43 depending what year it came off of) you will need some sort of em, a tbe, fuel pump and a tune. A larger tmic will help as well. Your stock fuel injectors will work with that turbo.
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#3 Old 04-01-2008, 11:09 AM
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what is a tbe?
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#4 Old 04-01-2008, 11:14 AM
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turboback exhaust, meaning you'll need to be at a stage 2 setup before you upgrade the turbo w/ supporting mods.

Mike
DTRacing Tuned
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#5 Old 04-01-2008, 02:46 PM
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so with those mods i will be at stage two and i should be able to run an STI turbo, what about anyother ones. and what kind of gains should i expect from that using the above mods? Thanks
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#6 Old 04-01-2008, 02:59 PM
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The Sti turbo is either the vf39 or vf43 as stated above by wrxman420. Another turbo you could look at is the vf34. It spools pretty quickly and is great for a daily driver. Forced performance makes some good ones. im waiting on a few payckecks and im going to order the FP EvoIII 16g. So just look around and get information. Theres a sticky on this site that list a ton of different turbos, i believe its under the FAQ's section.

P.S. Dont rush into things, tuning and modding a car isnt something that should be rushed. So save some money, go to stage 2 and see how you like that power gain.
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#7 Old 04-01-2008, 03:17 PM
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I have been a gear head ever since before i could drive, ha ha I just like speed i dont know what it is about it i want to put a daily driver but quicker spooling turbo that is reliable and dependable in place of the stock WRX turbo
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#8 Old 04-01-2008, 03:21 PM
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Then id look into the VF34. Its not a crap ton bigger than your stocker, but any gear head knows that its not always the size of the turbo. Bigger turbos create lag and arent good for daily driving applications. With supporting mods and a tune, the VF34 could get you into the 260-280 whp range. That may not seem like alot, but dont underestimate that number.
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#9 Old 04-01-2008, 03:30 PM
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i know power doesnt just come over night i wish it did though. ha ha anyway i app your help man thanks alot. Anyone else? any advice
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#10 Old 04-01-2008, 09:53 PM
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Set a goal for your power and start researching what it takes to get there. The 2.5 pushes a little better than the 2.0 so some say not to go smaller than an 18G.

Joshua
"2007 WRX- PPG'd, 20G- Tim Bailey tuned
Stage 2 2005 WRX
Cobbtuning.com"
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#11 Old 04-02-2008, 02:46 PM
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I agree with Kawboys11..... a turbo upgrade is going to do nothing for you without the supporting modifications. Your stocker may not seem like much to you right now but you would be surprised how much power you can get out of a few mods such as the TBE and a good tune. Before I ever did my swap I was making 306 wtq on the stock turbo and intercooler with nothing more than a TBE, fuel pump, and engine management with a tune. The real key is do things safely in stages.
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#12 Old 04-02-2008, 07:29 PM
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app. it guys
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