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Old 07-14-2018, 11:25 PM   #1
08NarrowBodyPoke
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Default 2008 wrx narrow body sti swap!!??

So threw my main bearing this morning on the way to work. Wooooo awesome. So pretty much spent all day searching this forum among others with no straight answer. Most would be on topic then ended up on something totally unrelated. Anyways itís going to cost a arm and leg for a rebuild. Figured Iíd swap a new motor in. Now my question is can I swap a sti ej257 in? Just the motor thatís it long block no trans. Would it be plug n play or do I need to some splicing, new ecli or can I flash it with my accessport. Thanks much
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Old 07-15-2018, 05:59 PM   #2
Stretch18
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Sti is going to be dual variable valve timing which your ecu canít control. You would need to switch your heads to d25 single avcs versions but then you have to deal with the wrong compression ratio on the ej257. No easy (&cheap) answers here unfortunately...
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Old 07-15-2018, 06:47 PM   #3
08NarrowBodyPoke
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Couldnít I just swap out the ecu for the ej257
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Old 07-16-2018, 01:38 AM   #4
subaru_gc8
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if the pins on the harness are all correct but I dont think they are. BTW why do you want the dual avcs anyways?
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Old 07-17-2018, 06:04 AM   #5
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your wrx engine is almost the same as an sti engine anyway so just stick with a single AVCS versions (06-14 wrx/07 sti). you can use older 04-06 sti engines but you will need to block air pump CEL's (unless you already have it deleted in your car).
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Old 07-17-2018, 12:43 PM   #6
08NarrowBodyPoke
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Quote:
Originally Posted by subaru_gc8 View Post
if the pins on the harness are all correct but I dont think they are. BTW why do you want the dual avcs anyways?


Main bearing went out last Saturday heading to work. So just trying to figure out which motor I could swap in itís place
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Old 07-17-2018, 12:43 PM   #7
08NarrowBodyPoke
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Quote:
Originally Posted by drewdogg View Post
your wrx engine is almost the same as an sti engine anyway so just stick with a single AVCS versions (06-14 wrx/07 sti). you can use older 04-06 sti engines but you will need to block air pump CEL's (unless you already have it deleted in your car).


Thanks much cleared up a lot for me
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Old 07-18-2018, 03:11 AM   #8
subaru_gc8
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Quote:
Originally Posted by 08NarrowBodyPoke View Post
Main bearing went out last Saturday heading to work. So just trying to figure out which motor I could swap in itís place
Why not an iag block
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Old 07-20-2018, 09:33 AM   #9
08NarrowBodyPoke
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Quote:
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Why not an iag block


Funds are a little low lol
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