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  #1  
Old 02-19-2008, 12:09 AM
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WRX engine swap?

this isn't something I'm doing, nor would have the funds to do, however, I am curious to know how much information there is on something like this. Has anyone figured the specifications to make this happen, or possibly looked into doing it? If so could you post your intensive knowledge on here, I am very curious to know a bit more about something, such as a WRX engine in an SVX.
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Old 02-19-2008, 12:15 AM
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well i suspect that if you put in an sti swap you will have extra room for a bigger turbo or turbo's..
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  #3  
Old 02-19-2008, 12:48 AM
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It would probably be better to go with a STI swap.
2.5 compared to a 2.0
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  #4  
Old 02-19-2008, 12:51 AM
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Well....you can essenitially bolt it right in. Problem comes with making the motor run, and all your other **** work at the same time. youd need pin outs for both ecu's to see if the imprezza ecu can manage the svx's other systems....Or possibly even use both in conjunction with eachother (Once again, pinout diagrams of both ecus would be needed) OR you can try to wire in a standalone to the new motor (There should be plenty of kits available for the 2.0 and 2.5l motors) and make THAT work in conjunction with the svx

Other than the wiring nightamare, it's a piece of pie
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  #5  
Old 02-19-2008, 02:41 AM
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Quote:
Originally Posted by Turbone View Post
It would probably be better to go with a STI swap.
2.5 compared to a 2.0
2006 and up wrx and STI share the 2.5 block. compression is slightly different but the internals are basically the same.
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  #6  
Old 02-19-2008, 09:09 AM
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<<well i suspect that if you put in an sti swap you will have extra room for a bigger turbo or turbo's..>>

it gives you about an extra 6" of space, but thats found in the front of the engine. great for a large FMIC!
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  #7  
Old 02-19-2008, 09:58 AM
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Quote:
Originally Posted by svxpert View Post
<<well i suspect that if you put in an sti swap you will have extra room for a bigger turbo or turbo's..>>

it gives you about an extra 6" of space, but thats found in the front of the engine. great for a large FMIC!
It also helps with weight distribution as well being that the theres less mass hanging over the front axles.
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  #8  
Old 02-19-2008, 11:35 AM
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There is also the fact that most of us old fogies would consider putting a 4-pot into a luxury six cylinder coupe a retrograde step.....

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  #9  
Old 02-19-2008, 12:42 PM
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Quote:
Originally Posted by svxistentialist View Post
There is also the fact that most of us old fogies would consider putting a 4-pot into a luxury six cylinder coupe a retrograde step.....

How about I cram TWO STi engines into a SVX...then we'd have a Flat 8
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  #10  
Old 02-19-2008, 12:57 PM
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Quote:
Originally Posted by svxistentialist View Post
There is also the fact that most of us old fogies would consider putting a 4-pot into a luxury six cylinder coupe a retrograde step.....

What's someone of your generation doing feeling respectable in a car with less than 8 cylinders, anyway?
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  #11  
Old 02-19-2008, 03:00 PM
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Quote:
Originally Posted by cruisen_15 View Post
well i suspect that if you put in an sti swap you will have extra room for a bigger turbo or turbo's..
Space isn't an issue... There'll be tond of space in there no matter what Subaru engine you decide to put in there. If my memory serves me correctly, the EG33 (while no longer the "biggest" engine Subaru ever made) was the largest, dimensionally. This is mainly due to the valve covers at the front of the engine (when you compare it to the EZ series 6 cylinders which have a chain driven valve train)...

Quote:
Originally Posted by Turbone View Post
It would probably be better to go with a STI swap.
2.5 compared to a 2.0
Definitely a 2.5 would be my choice for the greater low end torque... However, I don't think that anyone will doubt that the 2.0 has the potential for power to haul the SVX around alot faster than the current EG33... Starting off might be alittle tricky in the 2.0... I wouldn't call it a problem though if you mate it with a 6MT and a nice beefy clutch between them... 4,000rpms and come out of it like you stepped on a burning pile of dog crap... That'll get the car moving no problem...

Quote:
Originally Posted by SomethingElse View Post
2006 and up wrx and STI share the 2.5 block. compression is slightly different but the internals are basically the same.
They are internally similar, but not the same. The EJ257 has a few features that the EJ255 doesn't have... But all things considered, unless you are thinking about going above 400 crank HP (which isn't hard in those engines at all) then it would be easier and cheaper to just get ahold of an EJ255 (used in the 2004+ Forester XT, 2006+ WRX, and Legacy 2005+)...

-----------------------

To the OP... Yes, the task of getting the engine in there is completly possible and probably wouldn't be that hard of a custom job. The tough part that would be tough (the part I wouldn't touch to save me even if I was burning alive in gasoline) would be the electrics. It would be my bet that unless you are an electrical engineer or just have no friends and no life (an EE pretty much has neither ) then you will get the engine in but you'll have no HVAC function and most likely no dash...

Because of this I wouldn't do the swap unless I was trying to turn the car into a track car for weekend motorsport events. And to be very honest, there are FARRRR more capable cars out there that I'd turn into a racecar before looking at an SVX as one... Yeah the speed of one of the Turbo EJ motors would be great, and if you have about $10,000 to blow on it I say go for it!... Cause that's about what it's gonna cost (atleast)... But knowing how "tight with money" most of us are, I doubt anyone is willing to invest that much money on their SVX... Who knows though... Someone is bound to do it eventually...

Apparently there was a guy in GA who bought Jason Porter's ("Porter" on here) old blue SVX and was going to do exactly what I described above. However something happened with his funds and he never got around to it...

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  #12  
Old 02-20-2008, 06:07 PM
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BeneathNorthernSkys BeneathNorthernSkys is offline
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I know that it seems like all out blasphemey to do it. I've considered it for multiple reasons however. One, it's not like WRX's have a "ricey" engine, the thing packs some HP. But more importantly, seeing as how the svx has such poor overall fuel efficency, I was looking into possible economic gains. Idk if this is even worth looking into but I'd like to possibly boost mine.
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  #13  
Old 02-20-2008, 06:27 PM
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Engine, tranny to handle it - standalone setup, reduced height springs ~10,000


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  #14  
Old 02-20-2008, 06:45 PM
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Quote:
Originally Posted by BeneathNorthernSkys View Post
I know that it seems like all out blasphemey to do it. I've considered it for multiple reasons however. One, it's not like WRX's have a "ricey" engine, the thing packs some HP. But more importantly, seeing as how the svx has such poor overall fuel efficency, I was looking into possible economic gains. Idk if this is even worth looking into but I'd like to possibly boost mine.
If you were REALLY looking for better fuel mileage, you'd want to drop a NA 2.5 in it (or 2.2) with a lower geared tranny to better mate with the reduced power....then you could even run regular fuel, instead of the premium fuel the SVX AND WRX requires....
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  #15  
Old 02-20-2008, 08:38 PM
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Originally Posted by LetItSnow View Post
What's someone of your generation doing feeling respectable in a car with less than 8 cylinders, anyway?
Oh, Damn. That was funny. Really really funny.
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