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Old 03-19-2007, 12:44 PM   #1
rainmanjam
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Join Date: Jun 2004
Chapter/Region: NWIC
Location: Lake Oswego, Or
Vehicle:
2004 STI
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Default Motor Swap: 07 STI into a 04 STI

Will I run into any problems?
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Old 03-19-2007, 01:06 PM   #2
east milford wrx
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yea.. like a hundred and twelve of em
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Old 03-19-2007, 01:07 PM   #3
rainmanjam
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I just need one major one.
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Old 03-19-2007, 01:11 PM   #4
Cone Klr
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02 wrx, 04sti
WRB squared!

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hvac systems not compatable!!
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Old 03-19-2007, 02:22 PM   #5
rainmanjam
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Im not going to be using the AC for what I will be doing. anything else?
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Old 03-19-2007, 02:40 PM   #6
Jaxx
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The 93 W/EJ20K-sold
Subaru-less :(

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Quote:
Originally Posted by east milford wrx View Post
yea.. like a hundred and twelve of em
that really wasn't that far off

the ecus are very different
07 has an immobilizer
07 has the air pump
heads are differnt
short block is slightly differnt

really not a great idea ...

are you replacing a motor? did it blowup?

a 04-06 sti, 04-05 fxt, 04-06 baja, or 05-06 lgt long block would be a direct swap
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Old 03-19-2007, 03:39 PM   #7
atech_rallyrs
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00 impreza naSTi
el typico silver

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the ecus are very different
07 has an immobilizer
07 has the air pump
heads are differnt
short block is slightly differnt

^
If you want to know how much of an issue the immobilizer is, just read the h6 thread.

Last edited by atech_rallyrs; 03-19-2007 at 03:58 PM.
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Old 03-19-2007, 05:01 PM   #8
rainmanjam
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Basicly. Ring landing gone. I was thinking about just paying off the 04 early, getting the 07 and dropping the motor of the 07 into the 04. Then getting the Cosworth longblock they have out and putting that in the 07.
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Old 03-19-2007, 05:17 PM   #9
Jaxx
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Subaru-less :(

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long block-no zero chance of plug n play...
short block- yes

nothing like throwing $45k at a $2500 proublem

oh and the cosworth long block won't work in the 07
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Old 03-19-2007, 05:28 PM   #10
rainmanjam
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Quote:
Originally Posted by Jaxx View Post
long block-no zero chance of plug n play...
short block- yes

nothing like throwing $45k at a $2500 proublem

oh and the cosworth long block won't work in the 07
Thanks.. I think.
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Old 04-24-2007, 02:46 AM   #11
lo0nY
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I recently swapped out my EJ20 from my 2003 WRX to a EJ25 from a 2007 WRX. Bought a complete longblock and swapped what i could over and swapped over the cam position sensor. Starts up and everything, only problem i'm having is the car won't go into gear....


if anyone could help me with that it would be greatly appreciated...
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Old 06-07-2007, 01:03 AM   #12
jaredpack
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Location: SLC, UT
Subaru Stars What about a 2007 wrx engine into a 2004 wrx?

What problems would I face by putting a 2007 engine in a 2004 wrx?
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