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Registered
98 Impreza OBS, 99 R1
Joined
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28 Posts
Discussion Starter #1
Hi all im hoping I can pick your brains. I've searched for info on the 2.5 swap but there is little to no mention on 2.2 sohc to 2.5 dohc. Is it worth trying to put a dohc motor in? I know the sohc are a drop in and go deal (for the most part) but what about going from a phase 2 to a dohc motor? Will the 2.2 ecu run the dohc? Any help would appreciated. I tried searching but no.luck maybe I didnt put in the right key words idk?

Sorry this is on my phone so excuse the grammar and spelling

Thanks again
 

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Baby❤Daddy
98L Wagon
Joined
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27,848 Posts
with your 98..complete plug and play. you have to do nothing. and i mean nothing. old out, new in. that's it. ej25D -ej22e. you can swap the ECU, but you dont have to. the 2.2L ecu will run it. did mine this way for over 4 years. this is all becuase the phase 1's are retarded similar.

if you want to use a phase 2 SOHC engine..wiring will be required.
 

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Baby❤Daddy
98L Wagon
Joined
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27,848 Posts
your obs is basically the same as my L..anything else..feel free to ask.
 
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