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Old 02-06-2017, 03:27 PM   #1
02wrxYEE
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Member#: 351797
Join Date: Mar 2013
Chapter/Region: BAIC
Location: South Lake Tahoe, CA
Vehicle:
2002 WRX
Sedona Red Pearl

Default 02 WRX Jdm Ej205 Swap ignition difference?

Hey guys,

I recently purchased a jdm ej205 from ebay to swap into my 2002 wrx after it spun a rod bearing. After receiving the engine I can tell that it is non-avcs which from my research indicates that it is an older model engine. After further inspection my mechanic realized that this engine uses a distributor ignition system instead of coil packs like the original usdm engine.
My question is...
did I get screwed with this engine since I'm assuming its a v6 or older model with a different ignition system?
or is there still a way to swap it into my car without having to return the engine?
Thanks!
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Old 02-06-2017, 10:59 PM   #2
Allweathermechanic
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Location: clifton
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your engine is fine, you just have to put in your usdm coil packs, intake manifold, crank sprocket, driver intake cam sprocket and some other things to the jdm engine. While the engine is out and easy to work, change the valve cover gaskets, I wished I had.
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Old 02-06-2017, 11:06 PM   #3
Sweetsixteam
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Location: Vancouver, BC
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1999 Forester S/Tb
Silver, Spec A (JDM)

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Yeah it's probably from a jdm forester s/tb, my car is an ej205 but doesn't have coilpacks. Please let me know if you want to get rid of the plug wires, I could use a spare set.

*This might be 9:1 compression if its from a forester. Slightly higher than USDM ej205.
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Old 08-06-2017, 09:42 PM   #4
Blake5858
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Location: Pittsburgh pa
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2001 Wrx
Black

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Quote:
Originally Posted by Allweathermechanic View Post
your engine is fine, you just have to put in your usdm coil packs, intake manifold, crank sprocket, driver intake cam sprocket and some other things to the jdm engine. While the engine is out and easy to work, change the valve cover gaskets, I wished I had.
What else do you need to do the swap? Im going through the same issue and want to know in advance on what all I need to take off my old engine besides what is listed above
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Old 08-09-2017, 12:57 PM   #5
swansong
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Location: Fox Valley, WI
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2004 WRX Wagon
WRB

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Quote:
Originally Posted by Blake5858 View Post
What else do you need to do the swap? Im going through the same issue and want to know in advance on what all I need to take off my old engine besides what is listed above
My advice is to get a JDM EJ205 with AVCS, which usually come from SF5 Foresters. Get the ECU as well. Then pick up an AVCS wiring kit, or diy, and enjoy that added benefit. Doing it this way, you don't have to swap over the IM, harness, TGVs, cams or gears, etc. Maybe change the coolant return tube, since it will be at a greater angle if the engine is from a Forester, or hack together a hose setup like I did. You'll still want a custom tune to deal with the 9.0:1 compression and such.
(all of this assumes you don't have emissions testing)

It's worth getting the right engine from the start. I got one identical to this: https://www.jspecauto.com/engine_det...05-impreza-wrx
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Old 08-10-2017, 02:08 PM   #6
Jerry Edwards
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Join Date: Aug 2017
Default Feeling the same way

Quote:
Originally Posted by 02wrxYEE View Post
Hey guys,

I recently purchased a jdm ej205 from ebay to swap into my 2002 wrx after it spun a rod bearing. After receiving the engine I can tell that it is non-avcs which from my research indicates that it is an older model engine. After further inspection my mechanic realized that this engine uses a distributor ignition system instead of coil packs like the original usdm engine.
My question is...
did I get screwed with this engine since I'm assuming its a v6 or older model with a different ignition system?
or is there still a way to swap it into my car without having to return the engine?
Thanks!
I feel the same bought a jdm Subaru impreza ej20 and said it was 02-04 motor now I'm finding it might possibly be older if u or any one has any info please let know
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Old 02-19-2019, 10:06 PM   #7
Codyokeefe
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I know this thread is old but id like to fill in some of the blank questions on the ej205 jdm to usdm ej20 swap from my experience. maybe somebody will be needing some info on the swap in the future. you need to use your manifolds (intake and exhaust). use the usdm turbo and all attaching pieces (save your intercooler brackets toss out the jdm brackets ( there completely different) you need to pull out the jdm turbo return line and put in the usdm one. jdm is pointed to the valve cover and usdm are pointed up twards the turbo. change out the left side intake cam gear. mark it jdm and usdm with a marker so you are not confused which one needs to go in. throw out the jdm crank sensor and cam sensor swap with usdm sensors. you also need to swap out the crankshaft pickup wheel. notice the jdm and usdm. there completely different.the coolant pluming that runs off the water pump and wraps around the top of the engine. discard the jdm stuff and save the usdm. you need a usdm wrx water pump. the jdm doesent come with the oil cooler like the udsm has. save the oil cooler and pull the freeze plug in the jdm block and replace the same plug with the usdm. should have a tube to put a hose on (on the udsm engine) . swap that over. replace jdm knock sensor with usdm. motor mounts are different so swap those out. they have a key way pin thing in the jdm mounts. hope that this gives somebody hope. im currently swaping all this stuff over as this is being posted.
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Old 02-19-2019, 10:12 PM   #8
Codyokeefe
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use company 23 for the camshaft pulley holding tool to break the camshaft bolt loose and to properly tighten. think there about $80 usd. it will be the best investment you made for the ej20
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Old 02-21-2019, 08:48 PM   #9
whitney32
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Location: Cary, NC
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Quote:
Originally Posted by Codyokeefe View Post
I know this thread is old but id like to fill in some of the blank questions on the ej205 jdm to usdm ej20 swap from my experience. maybe somebody will be needing some info on the swap in the future. you need to use your manifolds (intake and exhaust). use the usdm turbo and all attaching pieces (save your intercooler brackets toss out the jdm brackets ( there completely different) you need to pull out the jdm turbo return line and put in the usdm one. jdm is pointed to the valve cover and usdm are pointed up twards the turbo. change out the left side intake cam gear. mark it jdm and usdm with a marker so you are not confused which one needs to go in. throw out the jdm crank sensor and cam sensor swap with usdm sensors. you also need to swap out the crankshaft pickup wheel. notice the jdm and usdm. there completely different.the coolant pluming that runs off the water pump and wraps around the top of the engine. discard the jdm stuff and save the usdm. you need a usdm wrx water pump. the jdm doesent come with the oil cooler like the udsm has. save the oil cooler and pull the freeze plug in the jdm block and replace the same plug with the usdm. should have a tube to put a hose on (on the udsm engine) . swap that over. replace jdm knock sensor with usdm. motor mounts are different so swap those out. they have a key way pin thing in the jdm mounts. hope that this gives somebody hope. im currently swaping all this stuff over as this is being posted.
Was your engine coil-on-plug, non-avcs?
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