Subaru WRX/STi 20G-XT Turbocharger - Page 2 - Subaru WRX Forum
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post #16 of 23 Old 06-02-2011, 11:05 PM
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Did you read it?

Crawford: 400 whp. There are no internal engine modifications needed at this power level. The car would need a larger turbo, intercooler, fuel injectors, fuel pump, AOS, and retune of the ECU.

AMR: 400 whp. We suggest a set of forged AMR pistons and billet rods to safely boost up the engine.

Yimi Sports: 400 whp. For an EJ205, you should be doing a basic build on the block that would include forged pistons, rods, good bearings, and head studs. Obviously, quality machine work and tight tolerances/quality control are crucial. For an EJ255 and EJ257, all the block needs is a set of forged pistons. 400 whp (particularly on 91 octane pump gas) is when cylinder pressures are high enough that a random knock event can take out the stock pistons. The rest of the internals are more than up to the task.

My tuner says 350ish is where you need at least pistons. Because like stated some bad knock can kill a piston pretty easy above that range.

Kirt
378awhp/373wtq Custom Dom 3 & CBRD tuned 2006 STI.
"When in doubt...flat out" - Colin McRae
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post #17 of 23 Old 06-03-2011, 06:06 AM
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Well there's lots of people out there at 400whp. It "could" be a matter of time but a good tune and a place that sells perfect gas could make it last a long time! Hell I could make it last forever since I'm hardly ever in boost and not drive a lot. When I do it's a highway road trip which is why I have a lot of miles. O well, even factory motors blow for a number of reasons. Luck of the drawl.

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http://www.wrxtuners.com/forums/f121/2011-wrx-build-31226/
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post #18 of 23 Old 06-03-2011, 10:04 PM Thread Starter
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Well i got the turbo today! It looks to be a very high quality part. There is one mark next to there name but i guess i can live with that. Here are a few pictures!!
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post #19 of 23 Old 06-04-2011, 09:24 AM
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What are the specs again? 20gxt, 10cm, 3"?

Scott-2011 WRX 335HP 394TQ 93 VF52!
http://www.wrxtuners.com/forums/f121/2011-wrx-build-31226/
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post #20 of 23 Old 06-04-2011, 08:12 PM Thread Starter
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Yup thats correct! I got the Grimmspeed external wastegate up pipe last night for 125.00 new in the box with black ceramic coating.
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post #21 of 23 Old 06-04-2011, 09:21 PM
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how'd you score that? they make a EWG bracket for the door? or you gonna weld it shut?

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http://www.wrxtuners.com/forums/f121/2011-wrx-build-31226/
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post #22 of 23 Old 06-04-2011, 10:14 PM
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The bracket is only for specific turbos.
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post #23 of 23 Old 06-04-2011, 11:18 PM Thread Starter
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I was just surfing the web and found it on nasioc. They have a bracket for it. It's like 25 bucks from Grimmspeed. Besides I would make a bracket before I would weld the door shut. My buddy owns a machine shop and can make me basicly anything.
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