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Old 11-04-2006, 02:51 PM   #1
KillerBumbleBee
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Default impreza outback sport EJ22T conversion

alright, I'm throwing another idea out here to all you wondrfull people who are my think tanks. I just bought my 1997 2.2L impreza outback sport. I've been looking for good turbo setups for it, and want to know the compatibility betwene the EJ22T in the 1991-1994 legasy turbos and my car. could I use the EJ22T block, retain my heads, and run the legasy turbo setup with engine managment, and not have to rewire the whole car? thanks *grins* this is getting interesting/fun.

-Ben
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Old 11-05-2006, 06:18 PM   #2
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bump???
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Old 11-05-2006, 07:23 PM   #3
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Sorry I dont have anything helpful to say, but I understand how frustrating it can be to submit a thread and have nobody reply to it, free bump.
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Old 11-05-2006, 07:59 PM   #4
tonzo
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if you're using the ej22e heads you have to use the ej22e ecu, unless you plan to go to a standalone ecu.
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Old 11-05-2006, 09:49 PM   #5
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Yea, your compression will change. You'll have to run some kind of EM solution, most likely a standalone. I would just save ur money and do a wrx motor swap, and toss that block in.
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Old 11-06-2006, 01:44 PM   #6
fourstrokephysics
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yeah if you just did a standard wrx swap and then added the EJ22t shortblock to that, it would probably be a lot less headache in the long run will yield a car thats easy to work with and can handle lots of power
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Old 11-06-2006, 08:18 PM   #7
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Are ej22ts obdII compliant? I didnt think they were, thought they were obdI.
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Old 11-07-2006, 10:44 AM   #8
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obdI. and the NA block from a legacy of same year(91-94) as turbos will have same internals. just high CR and the like.
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Old 11-07-2006, 11:28 AM   #9
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Yikes. I see a bunch of mis-information being bandied about it here.

First, I don't think it's a good idea to use your stock heads with an EJ22t shortblock unless you can find one for *really* cheap. The biggest reason is that your passenger side head doesn't have the rear cam 'cap' that is plumbed for oil & coolant lines. The coolant lines are not a big deal. You can take the feed/return from the heater core lines. The oil return is. The likely solution is that you would need an oilpan from an aftermarket turbo kit that has an oil return plumbed into it. Also, why go through the trouble of separating your heads from the your stock block if you don't need to? EJ22s are fairly common. If you must run the NA heads, find a set a junk yard.

Using EJ22 heads with an EJ22t shortblock will not change your CR. The head volume is the same. The lower CR is a function of the piston design.

You don't need to use engine management to run your EJ22 heads on an EJ22t shortblock. If you don't have EM, you will need at least a RRFPR. The reason you don't need EM is that your stock manifold bolts right up and you don't have to monkey around with the engine harness.

Running an EJ22t in an Impreza without swapping the harness has been done. If you want to run the stock legacy turbo exhaust plumbing (exhaust manifold, uppipe, turbo, DP), you'll need a legacy turbo x-member so the uppipe will clear.


This is my source for the CR info: http://wac.addr.com/auto/obs/turbo/ejcalcs.html

I've also taken apart plenty of EJ22's and verified this experimentally.
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Old 06-26-2008, 11:50 AM   #10
06outbacksportdaddy
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if you change your headers for the turbo then you have to change the ecu but if you want to take the time to re-witre does it still have to be a standalone.
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Old 06-26-2008, 03:24 PM   #11
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so the general consensus is do a WRX swap on an EJ22t shortblock?

[I've been planning the same thing on my car]
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Old 07-10-2008, 04:43 AM   #12
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bump!
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Old 07-10-2008, 09:03 AM   #13
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Bump for info. Looking to do something simular too orignial post. Not on my car but on a buddy's 96L with my 97OBS's engine. Was looking to temp pick up a turbo used turbo kit for a RS and drop my 97' 2.2 in(less miles and its a Phase II am I right?) then break down his motor and rebuild it and have it set to drop back in ready for the set up and redo the piping at that time for the IC and exhaust and turbo pipes. I know a MOD on here has taken his I think 98 OBS and runs 13 second 1/4mi's on stock internals with nitros and I'm sure meth injections. Kevin Tomas if anyone's had the pleasure.
-Gaddis
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Old 07-10-2008, 01:56 PM   #14
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First off...Subaru has 3 2.2 engines....they have a 2.2 turbo block that came in 91-94 legacy turbo....then they had a Phase 1 2.2 non turbo in the 96/7/8 and some of 99..then they had a phase 2 NA 2.2 in the middle of 99...all 3 are different...you would have to change out the pistons on either the phase 1 or 2 blocks as they were NOT designed for boost...ie: cast pistons....Kevin Thomas did have a turbo'd 2.2 but blew it up about 6 monthes after he built it..If you add boost to your OBS 2.2's...you will need pistons to be able to handle it....even a low boost application (6 lbs or less) will take the motor out..

Be careful

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Old 07-11-2008, 03:17 AM   #15
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Do it once, do it right.
I had a complete EJ22T swap with harness merge. Limted to MAF and tuning available. Granted I could have ran the Apexi PowerFC after a little conversion with the wires.

Tuning is what's going to make the car come alive and perform well and have the response you're seeking. I swapped to a USDM WRX swap. I may even run a JDM ECU later just so I have better tables to work with. My friend now has my Ej22T swap in his '00 OBS. Much faster than a S2000. Running a TD04L, TMIC, header+TBE, MBC.

Think of choosing the year of your swap like Microsoft Windows. Windows '95, Windows '98, Windows XP, Windows Vista.
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Old 11-10-2008, 11:53 AM   #16
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Any more info on this? I'm looking around at info on the best way to get a little more go from my OBS. Bummer you can't just slap a turbo on and go with it. I haven't found anyone that's done any kind of turbo/rebuild for turbo and have it live for more than a year without something blowing on it. I love my subie, it's a shame it's such a wimp.
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