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2007 Forester Sports XT 4EAT
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@JacobC77 I see this is your first forum post, so welcome to the forum from Oregon!

Quick answer to your question, yes, bad idea. It's a lot more complicated & expensive, than it may first appear to be.

The proper way to do this is the swap in a complete XT engine from a donor vehicle you have. That includes all the engine wiring, merging it to the cabin wiring.

Bobby...

['07 FSXT Member Journal] ['03 X Member Journal]
 
2017 2.5i Fozy CVT
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1,265 Posts
Ok because I just don’t know how to make mine faster. I might be putting in a wrx motor in it.
I have that problem, too,only I want mine bigger,,,,, :oops::rolleyes:o_O;)
,,,, the real solution would be to get an Ascent, ahem...

,just as yours should be to get an XT . OR a good XT motor and all the harness and gizmos connected to it, along with a knowledgeable tuner/ mechanic to make it a seamless transition ,,with a warranty it will work.
If it was me, I think the logical choice , most trouble free and cheapest would be to just get an XT.
 

· Administrator
2007 Forester Sports XT 4EAT
Joined
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43,985 Posts
Ok because I just don’t know how to make mine faster. I might be putting in a wrx motor in it.
It's not that easy to do. You'll need a donor vehicle that you will move parts over from... like the engine & complete engine wiring harness, including the ECM - engine control module. Then it gets complicated. You'll need to merge XT wiring harness to the the existing wiring in the cabin. If you don't have the skills to do all of this yourself, you'll have to source a specialty shop to do the work... VERY expensive!

If you want an XT, your best option may be to sell your present Forester & buy an XT.

As you can see on my signature, my son & I installed an AVO turbo kit in our '03 X. This was a fun father & son project, took us all summer! I'd never do this again, as it's a challenging project & way too expensive! Still... it makes me smile to think back on that project & Alex's turbocharged '03 X is still running perfectly with zero problems & yes, it's FAST, but not as fast as my '07 FSXT!

Bobby...

['07 FSXT Member Journal] ['03 X Member Journal]
 

· Registered
2016 Forester 2.5i 6mt
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246 Posts
Anything is possible given enough time money and experience, but sometimes you seriously have to evaluate if it’s worth it, this is coming from someone who took a Nissan turbo Diesel engine out of a 1980 International Harvester Scout 4WD & installed a 6.9 liter Diesel & it was still 4WD afterwards, but it wasn’t easy or cheap! It was fun afterwards!
 

· Administrator
2007 Forester Sports XT 4EAT
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Is a bad idea to turbocharge a 2009 Forester X Limited
So i recently learned u cant teach a subaru ecu so with common knowledge and knowing that putting in the wire harness would be for lack of a better statement horrible i think the only bet is to juice up the ej20 as apose to swap it. The wrx motors so fit buuuuut i think maybe itd be worth it to juice the fuel injectors and exhaust then possibly upgrade some structural suspension or even just stronger starters and altinators and what not then you can push a bit of extra power possibly look into gearing aswell mush easier to have longer gears or more torque than new motor plus new motor wouldnt be ready to play with as fast. But im like hella young in this game so any info to help i accept!!!!
 
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