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Registered
2009 2.5X EJ253 Manual
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2,802 Posts
Discussion Starter #1
Could it be done? Drop-in fit or would there need to be a lot of adjustments necessary? Just wondering since Forester is based on Impreza platform. For instance say if a guy had a connection in a fairly large auto salvage operation and if a WRX were to come in to their yard as salvage from a total loss accident where the engine bay took no or minimal damage and he could get a deal on the mangled WRX's undamaged engine and ECU etc... Just dreaming here.
 

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Fast & Dirty
2009 Forester XT 4 speed auto
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4,039 Posts
Interesting thought.......


First thing that came to mind would be is it worth the time and money for 40hp? I am NOT a tuner but I would have thought there would have been cheaper ways to boost your numbers while keeping the warranty somewhat intact.
 

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Registered
2009 2.5X EJ253 Manual
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2,802 Posts
Discussion Starter #3
I was thinking more along the lines of the recipient SH being a base model w/ the 170hp engine.
 

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The Sub kit guy
2005 Forester X & XT VF39
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13,008 Posts
In the XT all you need to do is swap the WRX turbo (VF52?) and get it tuned.
 

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Premium Member
2017 VW Golf SportWagen 5MT
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10,784 Posts
I believe the bump in power vs. the '09 came from the different turbo and exhaust. Swapping the whole engine is pretty extreme, the difference in compression ratio (8.2:1 in the WRX vs. 8.4:1 in the FXT) isn't THAT huge and you could lower it by just installing lower-compression pistons. I'd go forged since they'd be lighter, too.

Better-flowing downpipe and a slightly bigger turbo and you'll be over that figure easily. That number is measured at the crank, dyno figures most of us use here are at the wheels (~35% difference?).

Putting a turbo engine in a non-turbo car can be done, but there are some issues (cross-member in the way of downpipe?)

Stan
 

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Official sf.org decal guy
2006 FXT
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12,367 Posts
unless you can get a crazy deal and do the labor yourself I personally wouldn't bother unless it's an STi engine. But that's just me. Pretty sure Sea-Scooby is right though. It should take much to get the SH up to, or past, the power of the WRX.
 

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Premium Member
2007 XT Sport 5MT
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24,015 Posts
If you can get all of the wiring and transmission parts too... then go for it!
You'd have one of the first 5-speed FXT's in North America then, if not the first. There's at least one 6-speed already, but not sure about the 5.

Remember that you'd need a new FXT hood though.
 

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Official sf.org decal guy
2006 FXT
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12,367 Posts
If you can get all of the wiring and transmission parts too... then go for it!
You'd have one of the first 5-speed FXT's in North America then, if not the first. There's at least one 6-speed already, but not sure about the 5.

Remember that you'd need a new FXT hood though.
Good point. I'd be more interested in getting a manual into the SH XT than the engine.
 

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99 RS
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111 Posts
Originally Posted by Duderotomy
If you can get all of the wiring and transmission parts too... then go for it!
You'd have one of the first 5-speed FXT's in North America then, if not the first. There's at least one 6-speed already, but not sure about the 5.

Remember that you'd need a new FXT hood though.

true enough , but of course anything can be done, just a matter of time and money.
 
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