Subaru Outback Forums banner
1 - 2 of 2 Posts

·
Premium Member
I has car.
Joined
·
4,621 Posts
You asking about dropping in a phase 2 (2000+) SOHC 2.5?

It's probably do-able, but not worth it for a number of reasons. If you're gonna swap in a later motor, at least make it something worth swapping, like an EJ205 turbo (wrx motor) or a 6cyl mill like an EZ30 (found in 2001-4 Outbacks) or an EJ33 (SVX).

The no-runs, no drips, no errors swap for a first gen OB is a 2.2. Bulletproof and cheap and bolts right in. Search what Canubaru told you to. . . lots of documented swaps. . . I've done one myself. The EGR/no EGR issue I dodged by swapping the donor car's ECU which plugged right in. Car was a 98 Outback 5 speed, motor came from a 97 Impreza 5-speed. Transmission is largely irrelevant tho.
 

·
Premium Member
I has car.
Joined
·
4,621 Posts
Yep, it'll bolt up. Might even use the same Y-pipe. But that's pretty much where the fun stuff ends.

Phase 2 2.5's don't even have the same cam/crank trigger patterns along the 5-year span they were made. Somewhere around 2001 they went to a different pattern. . . ran into that little nuance firsthand when I dropped a 2002 motor into a 2001 car. All was well after swapping the cam/crank gears but you won't be that lucky.

Biggest hurdle you'll have is the phase 1 cars are mass air, phase 2 are speed density. . . so no MAF meter. Might be able to get away with running a hybridized intake and still use the various sensors and whatnot off your existing intake, but if yours has EGR, none of the phase 2 2.5's do so you're pretty much hosed there.

As I said, it CAN be done (you can even drop an LSx motor in a Subie if you're so inclined), but at a minimum you'll need to run a gen 2 ECU and either merge or completely swap the front body harness, dash harness, and crossdash harness.

I've swapped a 2.2 into a DOHC 2.5 car. Easy peasy, japanesy. Just finished swapping a EZ30 into a 2nd gen car that formerly was motivated by an EJ25. No way I'd consider dropping a phase 2 into first gen. Minimal gains in horsepower and reliabiliy for a substantial outlay of sweat equity.

Low mile 2.2's aren't that hard to come by. They ran them all the way up to 2001 in the Impreza, and as late as 99 in the regular Legacy platform. . . and they're pretty much bulletproof so unless you're starting to see ring/bearing failure, why swap?

Here's one I found on the Pittsburgh CL without a lot of searching (mileage isn't listed):

1999 Subaru Impreza Outback Sport Wagon - Parting It Out

EZ30 more work than I want and alot harder to find
I've got an EZ30 for sale right now over in the classifieds for $500, complete with the entire front harnesses, ECU, and Y-pipe.

http://www.subaruoutback.org/forums/438985-post1.html
 
1 - 2 of 2 Posts
Top