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Old 10-28-2008, 01:41 PM   #1
rivman05
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Default EJ22E build

HI guys, Im building a turbo 22E. I know that this is not wise, but this is what I have planned. Starting off 22T heads with delta regrinds, 1.8 internals due to the fact that they are forged and are the early STI crank and rods. not sure for head gaskets yet. Stock 03 TMIC, HKS BOV, stock TD04, stock 02 exhaust. Thus far, I have to still get engine management, and fuel things. I have sourced the heads, TMIC, here on the forums. Does anyone else have any other odds and ends that I havent thought about yet or forgetten? thanks much, looking for criticism, help, encouragement, anything is helpful.

Gabe
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Old 10-28-2008, 04:47 PM   #2
poormansporsche
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Pretty sure all Subaru crankshafts are forged and are quite strong. You'll also have to either notch your stock front crossmember or buy a WRX or Legacy turbo crossmember.

cheers

poorman
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Old 10-28-2008, 05:51 PM   #3
rivman05
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this i know but forgot to post, i have already chalked out where im gonna have to sawsall it a bit to get the down pipe to fit. Thanks

Gabe
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Old 10-28-2008, 09:05 PM   #4
reddevil
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Or use a borla style header and come up from the rear. I have done that a few times.
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Old 10-28-2008, 09:28 PM   #5
Matt Monson
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Ej22E rods and crank are the same as Ej18 rods and crank. Same parts. Same part number. Do a search by my user name in the Built Motor forum. Sponaugle posted the part numbers and supercessions.
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Old 10-29-2008, 01:49 AM   #6
rivman05
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ok cool, thanks Matt. Thanks Red, so my uppipe wold come from behind, then my down pipe would go along side it then i take it. Thanks much guys, useful and helpful info. Any body else got anything for me?
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Old 10-29-2008, 11:09 AM   #7
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I got some for ya. Lol. I tried to post this last night but my computer froze (piece of crap).

Anyways, what I wanted to say was that the EJ22E motors are pretty stout. I ran 12 psi in my impreza with a crappy SAFC-2 street tune for like 6 months with no problems. I then sold the car and it still ran strong for quite a while after that (until the kid crashed it). But I honestly think hassling with the internals on that motor would be a waste of your time, energy, and funds. If you want to build or have a strong low end for massive boost you would be better off sourcing a used EJ20 block. That would give you the strength already and a lower compression ratio which will be better suited for boost.

And IIRC the EJ22T heads flow like garbage. I don't know from experience but I have heard enough knowledgable people to convince me. The regrinds might open them up but if you haven't gotten the heads yet you may want to look for some Phase 2 EJ25 heads (if you want to stay SOHC) or some EJ20 WRX heads (if going DOHC isn't a problem). But using the stock EJ22E heads would suffice for 8-10 psi unless you got the EJ22T heads for super cheap. I just don't think the amount of work vs. cost vs. performance gain is quite worth it on those heads. Someone chime in if this sounds wrong...

I would try and find at least a stock STI cat-back. Even a cheap 2.5"-3" Ebay exhaust would flow better and give you much better results than a stock 02 exhaust would. I wouldn't pinch too many pennies on this. Besides, if your gonna be turboed you may as well open it up to get that sweet boxer rumble!!! I would go cheaper on the glam parts, like a HKS bov, over the exhaust. And using a Borla header with a up-pipe from the stock flange location is how I had my turbo Impreza L set-up. The only problem with this is the up-pipe and down-pipe must be custom fabricated. Not a big deal if you can weld and fab good work but this also means the turbo will not be in the stock mounting position and the wastegate might get in the way of the up and down pipes. In which case you'll then need to put an external wastegate on the back side of the up-pipe (which is a safer way of handling boost anyways but gets more costly and creates more work). This brings me to another point. The stock WRX wastegate is set for ~11-13 psi of boost. And this is fine with good engine management but unless you plan on building a solid bottom end (like an EJ20, EJ22T, EJ257, etc.) you may want to run lower boost so you don't risk blowing your motor. In which case an external wastegate sounds in order. They can be found pretty cheap used and you can swap the springs out to run your desired boost amount all the way down to ~3-4 psi. I have seen some people fab springs up to the stock wastegate to lower to boost levels but this seems kinda ghetto and temporary...

My Impreza on 8 psi with a EJ22, FMIC, TD04, and street tune with a SAFC-2 ran a 14.7. Thats pretty impressive at 5000 ft! It managed to beat my WRX I bought to replace that car... You can get good numbers from a conservative set-up. You just don't want to be dumping money in places that aren't going to benefit you as much as others...

It sounds like you want to put quite a bit of money and time into this project. It would be a shame to do all this work and not get the full potential out of your build when a couple more bucks could make a huge difference!
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Old 10-29-2008, 11:46 AM   #8
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A few other things to consider. What are you gonna do about supplying the turbo with oil and coolant? The stock TD04's get this from the passenger head IIRC which you won't have the ports to (unless of course you use the 22T heads I think). If you are unsure, I can get you some pics of how you could do it. I ran my oil feed from an unused plug in the block and had a custom line made to match the plug hole in the block and the banjo fitting to the turbo and then used a piece of .5" or 5/8" (I can't remember) coolant line for the drain line and had a bung fitting welded into the side of the oil pan and had it drain back into the pan.

You can also T off the heater core lines and run 5/8" coolant lines to the coolant tubes on the turbo. You may have to reverse the coolant tubes on the turbo so they face the driver side. I know I had to.

Well I think I got in my .02...
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Old 10-29-2008, 04:35 PM   #9
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as for the oil and coolant, i was gonna do what i do to the big block with blowers that i used to build in Yakima. Make and entire set up with its own filter, pump, lines, resevoir. Have done this many times on Pro-chargers, and roots blowers. I just need a good electric pump, steel braided lines, old 2 quart oil catch box, and run it. Thanks for the info on the heads. I thought about 22T bottom end, but what do they run? I want to go with DOHC phase 2 25 heads, but not sure as to how will the wiring harness run, and what about the knock sensor? I thought about sourcing a 2.0 but here in AK its kinda limited, I'd rather buy heads, and bottom end and have them shipped up. Thanks tho, I ebayed an Emanage for management for the moment. I want to run 13-15 psi eventually but thought about 7-8 for now. Thanks for the EWG idea, dont know much about them but ill look around. Thanks, keep it coming if u have any words for me at all.
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Old 10-29-2008, 06:37 PM   #10
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I think the 22T bottom end is an 8.5:1 compression fully closed deck block (similar to the new STI blocks). They are a little hard to cource though as many people are looking for them and there aren't many left around. IIRC they were only made from like 91-94 in the Legacy SS's.

That oil set-up sounds complicated! It seems like your talking about a whole stand-alone oiling system just for the turbo? I'd think it would be easier using the pressure in the block as its already there and just run a few extra lines and call it good. But to each their own I guess.

About the heads, the DOHC heads will probably cause a little wiring work if your car is SOHC stock. Maybe building some Phase 2 SOHC EJ25 heads would be a better alternative?
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Old 10-29-2008, 09:37 PM   #11
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If you are really serious about this, visit http://bbs.legacycentral.org for more information. Many people there have done EJ22E builds and can point you in some better directions.
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Old 10-29-2008, 11:16 PM   #12
rivman05
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oh thanks guys, Suby, i would agree that phase 2 SOHC heads would be easier, and yeah its a stand alone oil/coolant systems since i have all the parts in my garage in Wa. but maybe finding a 22t short block, phase 2 25 SOHC heads, is the way to go at this point. I have time, I wont be touching it till March, till then im gettin all my ducks in a row with parts i need to do the build. does anyone know of any probs with using an emanage for an emu?
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Old 10-30-2008, 12:38 AM   #13
suby53
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That will make a very cost effective and very strong engine! I'd keep your eyes and ears open for the shortblock.

And I've heard good things about Emanage. You may want to jump over to the ECU management forum and check some threads about it.
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Old 10-30-2008, 10:39 PM   #14
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For oil, go to the dealer, or subarugenuineparts.com for the oil galley plug. You unscrew yours, and put that one in, done. For coolant, you can use the heater core lines that run out of the firewall, and they are close to the turbo anyway.

Obviously you will need lines for the oil and coolant.

I remember hearing/reading that the EJ22t heads flow like crap and shouldnt really be looked at for good power, but I guess that depends on your goals and what you are looking to get out of your build. If you use SOHC EJ25 heads, you drop your CR to about 8.5:1 if you use the stock headgasket. Not to mention they outflow the EJ22t heads by a good margin.


~Josh~
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Old 10-31-2008, 12:16 AM   #15
rivman05
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yeah so far this is wat i can come up with. emanage for emu, crank is gonna be a 22t, and tmic from someone on the forums in Anc. Ill have to source some sti rods, and any dohc heads, wiseco pistons. this should yeild a basic build to get it on the road. the goal is 22 psi tops. if i can hit it, ill look for a block later on down the road. and after doing this turbo set up i might twin my 66 plymouth fury 3 with a poly head 318, but its gonna get worked over this summer. thanks guys. I have a basic set of parts i need now. this is gonna be fun during spring break.
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