Honda Hater Posted July 26, 2008 Share Posted July 26, 2008 I have a 90 legacy Awd with a 2.2 and I want to do a 2.5 motor swap. I know the motors are similar and that makes me wonder if it is worth it. And I have many questions about doing it. 1. Is it worth it? 2. Will a 2.2 wiring harness work? 3. Will a 2.2 fuel injection system or wiring harness work? 4. Will the 2.2 ECU work? If not were can I find one that will? 5. Will the stock automatic tranny bolt up or hold up to a 2.5? 6. Is a stroker kit worth it? If so what is a good company that deals with stoker kits. Or anything I missed that you might know that I missed would be a big help. Thanks a lot. Link to comment Share on other sites More sharing options...
Elliottlj Posted July 26, 2008 Share Posted July 26, 2008 yeah you might wana know that.. the ej22 has the strongest block of any subaru motor... and from what i hear a built ej22 has more potential than a 2.5.. so id say keep it and make it a monster.. because your looking at to much work doing a N/A swap.. it would only be worth it if the motor you were inserting was a turbo motor. Link to comment Share on other sites More sharing options...
Bdubs Posted July 26, 2008 Share Posted July 26, 2008 Not worth it, find an ej22t block and build it up. The 2.2's are much more solid. You would have to get a new ecu and all new wiring for a 2.5, which is just a waste of time. Link to comment Share on other sites More sharing options...
Elliottlj Posted July 27, 2008 Share Posted July 27, 2008 yup thats the truth Link to comment Share on other sites More sharing options...
jonklein611 Posted July 27, 2008 Share Posted July 27, 2008 Do they make the parts for the 2.2s? Link to comment Share on other sites More sharing options...
Yamarocket630 Posted July 27, 2008 Share Posted July 27, 2008 I have a 90 legacy Awd with a 2.2 and I want to do a 2.5 motor swap. I know the motors are similar and that makes me wonder if it is worth it. And I have many questions about doing it. 1. Is it worth it? That depends on your goals. You will pick up 30-40Hp depending on the year of the 2.5 2. Will a 2.2 wiring harness work? NO 3. Will a 2.2 fuel injection system or wiring harness work? NO 4. Will the 2.2 ECU work? If not were can I find one that will? NO, you will need the 2.5 ECU for the same year engine you are installing for it to run properly 5. Will the stock automatic tranny bolt up or hold up to a 2.5? Yes, and probably 6. Is a stroker kit worth it? If so what is a good company that deals with stoker kits. Again, it depends on your goals. Or anything I missed that you might know that I missed would be a big help. Thanks a lot. Link to comment Share on other sites More sharing options...
Elliottlj Posted July 28, 2008 Share Posted July 28, 2008 basicly man just slap a turbo on it and have a fast car.. then when your motor blows just rebuild everything with forged internals fix the compression and slap the turbo back on it so this time its built and will just be fast Link to comment Share on other sites More sharing options...
Elliottlj Posted July 28, 2008 Share Posted July 28, 2008 lol^ jk but dont swap your motor unless the difference between your car now and your car after the swap is huge... then it would be worth it Link to comment Share on other sites More sharing options...
KuNomn Posted August 8, 2008 Share Posted August 8, 2008 Well, all of that being said... I already have a JDM ej25 sitting in my garage to replace my USDM ej25. I'm a bit stuck on the wiring though (no surprise), any advice for a fool? Link to comment Share on other sites More sharing options...
Elliottlj Posted August 9, 2008 Share Posted August 9, 2008 wiring is deff not my area of comfort but just find a wiring diagram and it should tell you all you need to know Link to comment Share on other sites More sharing options...
Reuben Posted August 10, 2008 Share Posted August 10, 2008 Don't waste your time on a 2.5. Like Bdubs said, find an old 2.2L turbo. MUCH more rewarding and reliable and powerful. Don't turbo your exsisting 2.2 btw - it's different to a real 2.2T Link to comment Share on other sites More sharing options...
Elliottlj Posted August 10, 2008 Share Posted August 10, 2008 this has nothing to do with the thread but this is to reuben do you have 2 sets of fogs on your bd or just the jdm projectors? Link to comment Share on other sites More sharing options...
redlegacygt Posted August 10, 2008 Share Posted August 10, 2008 or get 2.5 heads and 2.2T internals, wrx turbo and intercooler,and some sort of engine management... it can be done..but might not be your best route. Link to comment Share on other sites More sharing options...
Elliottlj Posted August 11, 2008 Share Posted August 11, 2008 that would probably cost double than that of a turbo swap Link to comment Share on other sites More sharing options...
Reuben Posted August 11, 2008 Share Posted August 11, 2008 this has nothing to do with the thread but this is to reuben do you have 2 sets of fogs on your bd or just the jdm projectors? It's a BG btw, and yes, 2 sets of fogs. Don't know why, but all Limited's got them. Link to comment Share on other sites More sharing options...
Elliottlj Posted August 11, 2008 Share Posted August 11, 2008 haha it looks sick i need fogs cuz mine were cracked and i had to take them out Link to comment Share on other sites More sharing options...
KuNomn Posted August 12, 2008 Share Posted August 12, 2008 wiring is deff not my area of comfort but just find a wiring diagram and it should tell you all you need to know Anyone know where I can find such a wiring diagram? I have the diagrams for my USDM BD, but I need the wiring to the JDM engine (not sure how to determine exactly what the donor car was). Link to comment Share on other sites More sharing options...
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