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Old 06-21-2005, 09:17 PM   #1
skiblur
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Default Any experience with the JDM EJ205???

Hey all.
The prices vendors have JDM WRX motors for make them very appealing. No, I'm not talking STi V7, I'm talking standard wrx. I understand its got AVCS, better pistons and higher compression. Is this true? I want to run an 16/18 G on my new setup. Can I make more power reliably? ANyone tuned one of these yet? I'm not looking for big balls power, just something more than my current VF28 setup, and the appeal of a low milage engine is nice. Gimme your thoughts...
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Old 06-21-2005, 10:45 PM   #2
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Yes. Everybody should swap this boy in. $1500 and you get ACVS? No brainer.

I know 2 guys at KingPin have. Cronic is rocking that motor in a GC8 as we speak and Clark was installing them in his garage 2 years ago. I know Clark (AzScoobie) has tuned a handfull of them as well. You have a decent shot at a U.S. tuned mail order JDM WRX ECU.
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Old 06-21-2005, 10:47 PM   #3
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cool deal. Do they make more power with the same mods than a USDM plant? Longevity? I was planning on a kingpin flash for it. What are the major physical differences between JDM>USDM? Let me know people, I might pull the trigger on this soon!
H.
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Old 06-21-2005, 10:48 PM   #4
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Higher compression, AVCS, tumbler delete- I haven't heard better pistons though. I looked earlier (attractive price as you say )- w/ 91 octane here I was a wee nervous w/ the higher compression (maybe unecessarily??).

I know the jdm motor boasts 246/245 vs our 227/217. It runs the TD04 as well in stock form, not sure if they run a higher target boost in jdm land though.

Does it necessitate a jdm ecu I wonder?
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Old 06-21-2005, 10:51 PM   #5
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If you want to control AVCS you do. It is 9:1. JDM ver8 is 9:1 compresion as well and I have no issues on 91. You will need BKR8EIX plugs. Mark my words. It makes more power and more power faster. The US WRX lag is basicly gone. No pulling into traffic and praying for boost. Cmooooooon booost, cmooooon!
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Old 06-21-2005, 10:57 PM   #6
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Quote:
Originally Posted by ebeck
If you want to control AVCS you do. It is 9:1. JDM ver8 is 9:1 compresion as well and I have no issues on 91. You will need BKR8EIX plugs. Mark my words. It makes more power and more power faster. The US WRX lag is basicly gone. No pulling into traffic and praying for boost. Cmooooooon booost, cmooooon!
Interesting what turbo are you running w/ it? Also w/ no ecu control on the AVCS- it's still advantageous- no?
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Old 06-21-2005, 11:02 PM   #7
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External waste gate AVO450. The AVCS is really what you are buying. You want it just may not know it.
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Old 06-22-2005, 12:06 AM   #8
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They are a steel.. But.. they are really a steel.. Crapy Pot metal steel connecting rods that snap off. Same rods as US motor. 9 to 1 compression. Not a bad motor. But dont push one to far or it will snap a rod. They tend to make 20whp more then a US motor in my experience. They have a wider power band and more trq off boost. A big step up but still a flight of stairs down from a 207 motor.

C
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Old 06-22-2005, 10:16 AM   #9
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If I got one it would be mated to a small turbo- 35,24/28/29 sounds like it might be what I'm looking for (wider power band, more trq off boost, a little more power).

No doubt the 207 is superior, but this might be ticket for those not needing lots and lots of power.
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Old 06-22-2005, 10:28 AM   #10
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ive got a buddy here thats had one for a while, and from what i understand just the higher compression adds a nice kick over the standard wrx.
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Old 06-25-2005, 04:45 PM   #11
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The JDM WRX EJ205 is an excellent motor. Can be reflashed for 91 octane (we can do this), and as Ebeck says, more power less lag!

We have 8x JDM WRX engines currently in stock.

Cheers,

Gary
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Old 06-25-2005, 05:59 PM   #12
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Gary can you guys take care of the AVCS as well? What needs to be done there?
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Old 06-25-2005, 08:08 PM   #13
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dude I'm sooooo close to pulling the trigger on this. By august is my goal . Can ecutek handle AVCS? Could you give me a VF39/Sti Pink/93 octane flash? What ecu would I need to run. I am itching here, mated with my RA box, this could be a WICKED daily driver setup WOOT!
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Old 06-25-2005, 08:39 PM   #14
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Yes on ECU-Tek.
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Old 06-25-2005, 08:41 PM   #15
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Yup, we can do the AVCS no problem. Just finished installing a JDM V8 STI with AVCS.

You will need a JDM AVCS ECU, either an STI or a WRX unit. We can order these if needed. We are one of the few Ecutek dealers with the capability of reflashing the JDM ECu's.

The VF39, STI pinks, and fuel pump all good in stock. Please give me a ring or e-mail if you're interested. Thanks!

Gary
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Old 06-25-2005, 10:07 PM   #16
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wow... now i am maaaaaaaaaaad tempted to jump in on one too
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Old 06-25-2005, 10:40 PM   #17
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Quote:
Originally Posted by ebeck
Yes. Everybody should swap this boy in. $1500 and you get ACVS? No brainer.

I know 2 guys at KingPin have. Cronic is rocking that motor in a GC8 as we speak and Clark was installing them in his garage 2 years ago. I know Clark (AzScoobie) has tuned a handfull of them as well. You have a decent shot at a U.S. tuned mail order JDM WRX ECU.
I can buy a full JDM EJ205 for $1500???
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Old 06-26-2005, 12:20 AM   #18
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Yup i am running one in my RS, definetly a cool motor.. I gotta trouble shoot my avcs, not sure the problem there. I made 227whp not really pushing it to hard, we had no fans for the IC at the shop in PA where we tuned it so clark had to let the car sit and cool for a few min between runs, which i think was really limiting power..

My motor had TGV's, i put on a V8 sti manifold..
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Old 06-27-2005, 03:47 PM   #19
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Rancid - $1699 + shipping, 6 motors in stock right now

Cronic - You are right, the 2001-2004.5 does have have TGV's, the 2005 (DBW) does not have TGV's. We have both motors in stock, although we let customers know TGV's are present because for the DBW they'll probably end up using their stock manifold.

Cheers,

Gary
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Old 06-27-2005, 04:42 PM   #20
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Sorry to hijack, but how does the torque band of the JDM 205 look compared to an average USDM stg. 2 setup? I thought about the JDM EJ205 route at one time but then thought it would be more cost effective to just do all pipes and EM, which is what I ended up doing. (Of course, JDM EJ205 -cats +reflash is a totally different animal. Im not asking about that.)

Regards,

Ben
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Old 06-27-2005, 11:05 PM   #21
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My JDM ej205 gets here tomorrow, I doubt I will be able to sleep tonight. I'm running a V7 ECU, VF39, pinks, 3in" TBE w/ cat, Walbro, etc... I havenít found anyone with this exact setup; I would like to talk to them about a few things if you know of anyone.

Does anyone know the boost limits of the JDM EJ205, I'm thinking it would be a little less then a USDM EJ205, due to having higher compression. What would a reasonable amount of boost be if one wanted some life out of the block?
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Old 06-28-2005, 12:54 AM   #22
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Electric Pork - Sorry I don't know if I can really answer your question to any satisfaction as it is pretty much apple to oranges. That being said all else being equal, the JDM EJ205 will consistently have better mid-range due to AVCS and higher compression.

RS_WRX_Swap - The boost pressure / longevity will really depend on your particular tune, gas available, etc. If you have 94 octane, I'd probably run about 17-18psi and a bit more timing, that motor really comes alive with 93+ octane!!

Cheers,

Gary
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Old 06-28-2005, 01:13 AM   #23
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Stock JDM 205 responds 3-4K far beter than the USDM variant. You will not pull into traffic and pray for boost. You will hit boost sooner and when you do it will make boost much faster. If you have octane it will learn much quicker than USDM ECU and take advantage of it sooner.

I would expect much bigger HP numbers than the USDM variant. AVCS is not a gimmick.
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Old 06-28-2005, 09:30 AM   #24
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I probably shouldn't have subscribed to this thread
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Old 06-29-2005, 05:02 PM   #25
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Ebeck said it best - AVCS is definaty NOT a gimmick!
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