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H6 Turbo or EJ257 Swap?
View Poll Results: Which engine setup?
Turbo'd H6 motor 24 61.54%
EJ257 Stage 2 15 38.46%
Voters: 39. You may not vote on this poll

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Old 12-31-2009, 10:07 AM   #1
salvator_rizzo
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Default H6 Turbo or EJ257 Swap?

So within the next few months here I am going to be gathering parts for another swap. Its all going into some year GF wagon.

Regardless of what engine goes in the car is going to have 6mt, brembos, coilovers etc the whole sti package minus the engine (or the engine too lol)

I was just throwing some ideas around in my head the other day and thought it might be pretty cool to do an H6 swap with a turbo rather than just go the standard ej257 setup stage 2 etc.
Originally I was looking to gain around 300whp but now thinking of it I wouldn't mind 350-400whp which would be hard at all on either, especially the H6 with a turbo.

Also, if I did go with the H6 turbo route, which turbo would I run? Would a VF43 be too small? or should I consider like a 16g or 18g even?

So basically which one should I go for? H6 would take a bit more work but I don't have a problem with that. They would both cost about the same and still get the same mpg's as well roughly
I want to hear your thoughts
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Old 12-31-2009, 10:17 AM   #2
trx450r
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h6 tubo'd wagon FTW!!!!!!
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Old 12-31-2009, 10:23 AM   #3
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Quote:
Originally Posted by trx450r View Post
h6 tubo'd wagon FTW!!!!!!

this... Drop some forged 2.2 pistons in there and throw some boost at it. I have a feeling that even an 18g might be a bit too small though.
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Old 12-31-2009, 10:33 AM   #4
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if money isn't an option, and you dont care about reliability and driveability (stock ecu vs. standalone) Then go with the H6 turbo.
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Old 12-31-2009, 10:41 AM   #5
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if money isn't an option, and you dont care about reliability and driveability (stock ecu vs. standalone) Then go with the H6 turbo.
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Old 12-31-2009, 10:43 AM   #6
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What does the ECU have to do with reliability and driveability?
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Old 12-31-2009, 10:45 AM   #7
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I was referring more to the Emissions side of it....
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Old 12-31-2009, 10:46 AM   #8
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I see. Thats a good point I guess. I would have the car smogged with the H6 motor in by itself, which should pass no problems. And then go for the turbo setup
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Old 12-31-2009, 10:48 AM   #9
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Does anybody have a link to another thread that may help Mr. Rizzo out?
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Old 12-31-2009, 10:56 AM   #10
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The way I see it is... the H6 Turbo would be pretty "unique" (been done before - Perrin), but for the power goals that you have in mind, a simple STI swap would do. You get the benefits of Open Source tunes, emissions, Diagnostics, and over the counter parts....

I have a Turbo'd RS. Been like this since 2004 with a standalone, and I love it. It was a great learning experience - particularly on the tunning side... BUT I do know what a PITA is to deal with custom parts, and dealing with emissions. Swapping to smaller injectors, changing to catted downpipes, and reconecting the ECU...just to pass the smog test.

If I could do it all over again, I would probably do a USDM swap... but back then it was waaaay more expensive.
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