04 sti engine in an 02 wrx

lovemyrex · 12-03-2005, 07:17 AM

How hard is it to install an 04 sti engine in an 02 wrx, what is involved, can I keep my 5 speed trans, can u keep the stock ecu, Or do have to swap them out to how difficult would that be, The reason im asking shese questons are because I can get this 04 sti engine for 3k and I was thinking about doing the swap, Or would it just be easy to just swap the sti shortblock out, And yes I have searched but I just can't find the answer's im looking for, Please no smart ass remarks as im still new to this!

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Ghost Rider · 12-03-2005, 01:03 PM

the big problem is the drive by wire throttle. You need to get the pedal assembly and so forth, which i think means your are going to need the STi ecu too, but i could be wrong on that last part. i think swapping the heads off the shortblock might technically be more work. the ej257 should just drop right in and bolt up to your 5 speed. at least i hope, because i am planning the same thing for february

turbocolin · 12-04-2005, 04:21 PM

just get an sti block and all your problems are solved

cronic · 12-04-2005, 04:22 PM

Quote:

Originally Posted by Ghost Rider

the big problem is the drive by wire throttle. You need to get the pedal assembly and so forth, which i think means your are going to need the STi ecu too, but i could be wrong on that last part. i think swapping the heads off the shortblock might technically be more work. the ej257 should just drop right in and bolt up to your 5 speed. at least i hope, because i am planning the same thing for february

Just change the intake manifold, for your wrx one with cable throttle. Drill and tap for cam sensor, and be done with it.

lovemyrex · 12-05-2005, 07:14 AM

If I were to just do a sti short block can i use my stock 02 ecu

pux888 · 12-05-2005, 05:12 PM

Cronic is right on....Im running the exact same swap your considering. you can use your 02 ecu w/ a utec. Ive actually got an extra w/ maps ready to go.

turbocolin · 12-19-2005, 10:40 PM

also the drive by wire gas pedal does not bolt up i had to weld it in with a bracket

12-03-2005, 07:17 AM	#1
lovemyrex Scooby Newbie Member#: 98321 Join Date: Oct 2005 Location: West Virgina Vehicle: 2002 wrx midnight black pearl	04 sti engine in an 02 wrx How hard is it to install an 04 sti engine in an 02 wrx, what is involved, can I keep my 5 speed trans, can u keep the stock ecu, Or do have to swap them out to how difficult would that be, The reason im asking shese questons are because I can get this 04 sti engine for 3k and I was thinking about doing the swap, Or would it just be easy to just swap the sti shortblock out, And yes I have searched but I just can't find the answer's im looking for, Please no smart ass remarks as im still new to this! * Registered users of the site do not see these ads.

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12-03-2005, 01:03 PM	#2
Ghost Rider Scooby Specialist Member#: 70346 Join Date: Sep 2004 Chapter/Region: Tri-State Location: NY Vehicle: 2017 Golf R Deep Black Pearl	the big problem is the drive by wire throttle. You need to get the pedal assembly and so forth, which i think means your are going to need the STi ecu too, but i could be wrong on that last part. i think swapping the heads off the shortblock might technically be more work. the ej257 should just drop right in and bolt up to your 5 speed. at least i hope, because i am planning the same thing for february

12-04-2005, 04:21 PM	#3
turbocolin Scooby Specialist Member#: 43539 Join Date: Sep 2003 Location: washingtonville ny Vehicle: 95L 97L 03hedgehog 02 wag 180mph monster	just get an sti block and all your problems are solved

12-05-2005, 07:14 AM	#5
lovemyrex Scooby Newbie Member#: 98321 Join Date: Oct 2005 Location: West Virgina Vehicle: 2002 wrx midnight black pearl	If I were to just do a sti short block can i use my stock 02 ecu

12-05-2005, 05:12 PM	#6
pux888 Scooby Specialist Member#: 8356 Join Date: Jul 2001 Chapter/Region: MAIC Vehicle: 02 STi swap 12 WRX limited	Cronic is right on....Im running the exact same swap your considering. you can use your 02 ecu w/ a utec. Ive actually got an extra w/ maps ready to go.

12-19-2005, 10:40 PM	#7
turbocolin Scooby Specialist Member#: 43539 Join Date: Sep 2003 Location: washingtonville ny Vehicle: 95L 97L 03hedgehog 02 wag 180mph monster	also the drive by wire gas pedal does not bolt up i had to weld it in with a bracket