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04-23-2002, 12:09 PM | #1 |
Scooby Newbie
Member#: 10149
Join Date: Sep 2001
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2.2 - 2.5 swap 97 impreza wagon A LITTLE HELP PLEASE.......
I am looking for information on swapping our old, and getting tired (130,000 mi and sounding even more like a tractor than usual every day) for a 2.5 .
I don't know the differences between the different 2.5's either, my thought was to maybe just swap in a 2.5 out of a legacy (sohc)? hoping that that would be the easiest. Is the legacy motor any better? What would I have to change? I did a search and could find only limited info. From what I could see it looked like the trans was the same and I would use the 2.5 ECU and injectors. Is the harness the same? Is the clutch the same? (I just put in a new clutch). A RS motor would be great, but I think it may be out of my price range, whats the difference in HP ? Basically I'm looking for a reliable, fairly simple swap upgrade with no check engine lights, oh and more torque. Any info would be greatly appreciated. Thanks, Mark
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04-23-2002, 01:00 PM | #2 |
Scooby Specialist
Member#: 6542
Join Date: May 2001
Chapter/Region:
South East
Vehicle:1997 Ver IV silver |
the RS and legacy 2.5L motors are the same engine.
try checking out www.fakewrx.com for info on the swap. not the most efficient method, but definitely the easiest. -adam- |
04-23-2002, 01:15 PM | #3 |
Scooby Specialist
Member#: 13610
Join Date: Dec 2001
Chapter/Region:
TXIC
Location: AustinTX
Vehicle:2001 2.5 RS Sedan Aspen White |
could go 2.2L Turbo but if it was me i would go 2.5L SOHC
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04-23-2002, 02:45 PM | #4 |
Scooby Newbie
Member#: 10149
Join Date: Sep 2001
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Thanks for the link Adam, but that was a 1.8 to 2.5 swap in an early car. It did have some usefull info in it though.
Anyone know about the 2.2 to 2.5 swap in a later (97) car ? |
04-23-2002, 03:46 PM | #5 |
Scooby Specialist
Member#: 13610
Join Date: Dec 2001
Chapter/Region:
TXIC
Location: AustinTX
Vehicle:2001 2.5 RS Sedan Aspen White |
I know there are a couple of guys on here that have done a 2.2L turbo mod in their RS's and have great results...I'm sure that there are ppl that have had good results in their L's
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04-23-2002, 04:39 PM | #6 |
Scooby Newbie
Member#: 10149
Join Date: Sep 2001
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Thanks, but I really did'nt want to turbo it, I was just looking for the swap info (stock motor is already very tired).
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04-23-2002, 05:22 PM | #7 |
Scooby Specialist
Member#: 6542
Join Date: May 2001
Chapter/Region:
South East
Vehicle:1997 Ver IV silver |
yeah, but it shouldn't be that much different. just giving you a starting point, since no one swaps 2.5's into anything else once they're out. i would think the biggest issue would be the clutch assembly, but i think your car already has the newer hydraulic setup, no?
at least your 2.2 ECU has knock sensors so the thing won't be clattering like a sherman tank until it warms up. -adam- |
04-24-2002, 06:55 PM | #8 |
Scooby Newbie
Member#: 10149
Join Date: Sep 2001
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Am I just stupid here or what? I thought this swap would be good bang for the buck, considering I have to pull the motor anyway... Is this a stupid idea? It seems no one has done this... Anyone else with Ideas or opinions on this?
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04-05-2022, 05:58 PM | #9 |
Scooby Newbie
Member#: 529547
Join Date: Apr 2022
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20 years later..
Did your 2.2 to 2.5 swap work?
I just picked up a '97 2.2 OBS needing a new engine. Wondering about the same swap Cheers Walter |
04-05-2022, 07:19 PM | #10 |
Scooby Specialist
Member#: 515308
Join Date: Jun 2020
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We have a winner…
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04-11-2022, 02:19 PM | #11 |
Scooby Specialist
Member#: 59182
Join Date: Apr 2004
Location: N. Idaho
Vehicle:2002 WRX GG>> 2016 Focus RS |
short answer: You'll want another EJ22 for that '97. The EJ25D in the '96-'99 LegGT/OB is a 99% direct swap. But unless it's a complete rebuild, don't touch.
Get another '96-'98 2.2 from any Subaru for a painless swap;'95 requires a dual-port exhaust manifold/EM. You CAN use the earlier '90-'94 2.2 but you'd need to reuse your '97 Intake manifold/ IM and the same dual-port EM, and there may be some other gotchas. These are all considered Phase 1/ P1 EJ-series engines and your ECU will run them all. Note that some 2.2 had EGR and some did not. And NO you can't use Phase 2/ P2 SOHC (2.2/2.5) engines from '99+. Harness/wiring/sensors/ECU are different. Go search online or the https://www.ultimatesubaru.org/forum/ site; It covers this as good as any other site...and don't rely on FB, etc. |
04-11-2022, 02:58 PM | #12 | |
Scooby Newbie
Member#: 337836
Join Date: Nov 2012
Chapter/Region:
NESIC
Location: Connecticut
Vehicle:2002 WRX Wagon Aspen White |
Quote:
This HAS to be the oldest bump ever. 20 freakin years. |
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