by kiahatsiu » Tue Mar 01, 2016 9:03 am
What is your budget?
What are your power goals?
As Billy Corgi discretely alluded to there is a thread pretty much on this topic only three threads down, but I will post my answer here.
You can turbocharge the ez30. The ones I have seen made about 270kw on e85 running 10 psi. They were using gtx3076s. While that does sound like low boost (at it is), keep in mind that the ez30 is a thin cylinder walled engine, never intended to be turboed. The cylinder pressure would be quite high due to the compression and the boost, and that is what kills subaru engines.
Here where it gets interesting, that 270kw car was for all intents and purposes a faster car than my built 2.5 running 25+ psi through a bigger turbo, because its power was a lot more accessible. It was easier to launch, and much easier to live with daily, not that mine is bad.
As for built motors, A mate of mine had a built ez30 in a gen 2 some years ago, which entailed pauter rods, pistons and dowling of the bores. I am over simplifying the build, but it wasn't closed deck or anything outrageous. It made 330kw on 98 running 15 psi through a 4088. That motor is still running some 8 years after being built in a gc8, making around 450kw, maybe more now. That bottom end wasn't cheap by the way.
In short, Al and Miles at A&MAuto will do you a turbo on the h6 for around 10k drive in drive out. There might be some increase in that price now the AUD is down a bit, it might have driven the Garrett price up. Talk to them, that price includes a tune from Coyote in Brisbane from memory, though the last time I discussed this with them we were drunk.
I hope your power and budget goals are realistic. It is pretty easy to get swept up in bullshit power number mania that goes on in these parts. Just remember, it is area under the curve.
Kinda flush. Fitment is something. ADM as F*ck.