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Old 07-25-2005, 01:43 PM   #1
83Rabbit
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Default Ej22t or Ej25 swap?

Which is more feasible, easy, cheap, less of a PITA?

I cant find much info on the 2.5 swap, but the 22t seems to be fairly straightforward.
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Old 07-25-2005, 02:28 PM   #2
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What car would either of them be going into?
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Old 07-25-2005, 02:45 PM   #3
83Rabbit
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Sorry, a 1994 Impreza L AWD

I need to do the simplest and most cost effective swap. Absolute power is no concern but since my motor is toast i need to buy a salvaged motor. May as well upgrade while the 1.8 is out if everything will bolt right up and little to no custom work is needed.
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Old 07-25-2005, 02:54 PM   #4
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[quote=83Rabbit]Which is more feasible, easy, cheap, less of a PITA?[quote]

I'd say EJ25, although EJ22T would be more fun. And both are very feasible.

Randy
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Old 07-25-2005, 03:15 PM   #5
83Rabbit
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Anywhere I can start on tracking down one of these motors?
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Old 07-25-2005, 03:30 PM   #6
CatchMyDrift
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Either one will need to have the dash removed and the main harness replaced. The EJ22t will need a stand alone or piggyback I believe, unless you can find the matching ECU. ( Good Luck ) Then you still have to tune it. ( More money ). If you want good quick and better cost effective results, go with the EJ25.
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Old 07-25-2005, 04:15 PM   #7
jamesfacts
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Quote:
Originally Posted by CatchMyDrift
Either one will need to have the dash removed and the main harness replaced. The EJ22t will need a stand alone or piggyback I believe, unless you can find the matching ECU. ( Good Luck ) Then you still have to tune it. ( More money ). If you want good quick and better cost effective results, go with the EJ25.
Not true, you certainly do not need to remove the dash to do an EJ25 or EJ22 swap.
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Old 07-25-2005, 04:17 PM   #8
83Rabbit
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problem is, the shop im talking to to do the work cant find a MY98 Ej25 and neither can I
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Old 07-25-2005, 05:37 PM   #9
Natoe
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Well you can swap the EJ22T into it, and use your STOCK ECU, it doesnt run perfect, (very rich), but an SAFC could help that. This is what i am doing and so far so good.
The EJ22T has far more potential than the EJ25... it is common for people with 2.5RS's to swap to an EJ22T block and put the 2.5 DOHC or SOHC heads on since the EJ22T heads are poor flowing. Its closed deck and wont explode as fast as the EJ25.
I got my EJ22t from a junkyard for 850 with the turbo, downpipe, and turbo crossmember which clears the exhaust manifold, and i know people have gotten others for less than that.
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Old 07-25-2005, 05:40 PM   #10
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It can be done!
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Old 07-25-2005, 06:47 PM   #11
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sweet Ive been reading up and your able to use the stock wiring/ECU with the EJ25s as well. Both swaps require the same amount of time, however the EJ25 bolts up to the stock manifold so no exhaust is required.
Ive also read reports about the EJ18 ECU having too much of an advanced timing curve for an EJ22T motor so I was a little weary about that.And lastly, the EJ25 is much easier to come by it seems than the EJ22T as far as lower mileage is concerned.

I called around and found one in VA, they wanted something like 1600 and it had around 100k on it. No Fing way TYVM lol.

It all boils down to which is easiest, least expensive, and which will be readily available within the comming weeks.
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Old 07-25-2005, 07:25 PM   #12
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Well, im going to assume that the 2.5 swap will be similar if not the same as the example im about to give... if i'm wrong i know americanyouth can straighten out my facts, but as an example i'll tell what i def. know which will be about 2.2 swap from 1.8...

-take 1.8 wiring and put on 2.2, perfect fit
-get 2.2 ecu, take out 1.8 ecu, put in 2.2 ecu
-put in new 2.2 with 1.8 harness on it
-plug all that B.S. hoses and plugs
-start it up

i dont know because i haven't looked into it, but i dont see why a 2.5 swap wouldnt be the same unless it has more sensors... in which would involve a bit more wiring, but do the above then add what's needed will be the easiest.

again, someone correct me where i'm wrong cuz i'd sure like to know too

for a ej22 -> ej22t swap which i'm doing now for someone is:

-put the ej22 harness on the ej22t manifold (again, the ej18 harness should fit as well)
-switch a few (4) wires around on the ecu cuz the cam and crank sensors are opposite on the turbo ecu
-put in the ej22t ecu
-add needed wires on ej22t ecu for wastegate control solenoid, pressure exchange solenoid, and pressure sensor
-2 of the 4 throttle position sensor wires need to be switched
-plug all else in and hope it starts cuz i haven't gotten to that point yet

i hope at least some of this will help

and for wiring and etc. check this site out, has very helpful stuff
http://main.experiencetherave.com:80..._manual_scans/

-andy-

Last edited by drewdogg; 07-25-2005 at 07:33 PM.
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Old 07-25-2005, 07:54 PM   #13
83Rabbit
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This is all great stuff thanks guys! keep it comming!

Ive come up with the funds, $800 for a motor. I see plenty of 2.5 00-01 motors with around 40-80k going for $800 which means Now I have to locate an exact motor, make arrangements with shipping and jump into this project.

Last problem. I dont have a garage. Ill be doing this in my neighborhood parking lot. So Ive gotta have the motor out/in in one day, doesnt have to start, just sit in there with the hood closed and act normal for the night. lol.
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Old 07-25-2005, 09:09 PM   #14
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Order of ease of install:

1. 2.2 shortblock combined with the 1.8 heads (all you need is the 2.2 N/A shortblock, and it ups the compression ratio using all the other 1.8 stuff to like 11.5:1 and you have about 150hp or so.

2. MY96-98 2.5 motor swap w/ 1.8 ECU (takes barely any wiring by using the 1.8 ECU, but you have to swap the throttle and sensors from the 1.8 to the 2.5 and do one or two small things)

3. MY99-01 2.5 swap w/ 1.8 ECU (takes a little wiring, along with swaping more stuff than the ~98 motor including a gear on the crankshaft)

4. EJ22t swap without doing all the wiring (it seems to be alot less difficult than the full on wiring harness swaps, even if you do aftermarket engine management which you should)

5. My 98-01 2.5 swap w/ 2.5 ECU (Alot of wiring, but since its from the 93-01 chassis its not as hard as WRX, etc. swaps)

6. JDM 93-01 WRX/STI swap (Even more wiring and such, but its still using the 93-01 chassis so still easier than the 02+ USDM swaps)

7. USDM WRX swap [JDM WRX/STI 02-04's probably fall in here too] (LOTS of wiring...)

8. USDM FXT/STI (LOTS AND LOTS of wiring, among other things including swaping pedals and you have to use the right ECU to run the Electronic throttle)

9. EZ30/EZ30-R Anders and Slack can speak to these... Quite difficult aparently as there is minor fabrication involved, and slack is still working on the EZ30-R swap
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Old 07-25-2005, 11:38 PM   #15
Natoe
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i got my legacy turbo motor for 850 with the crossmember and downpipe... so thats about your price, but then it costs more for getting a custom wrx exhaust and such.... 800 and youll be able to do a straight forward N/A swap and have some money to juice it up a bit and make it run strong.
it depends on how much you enjoy the sound of a turbo spooling... hehehe
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