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Old 12-15-2003, 11:36 PM   #1
DuoMaxwell
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Talking Out with the old in with the NEW!!

Well it happened. I finally decided to detune my WRX or shall I say retune it!! I am removing the Ver II STi EJ20 and replacing it with a 2001 STi engine($950 30000km on it)!!! I will post pics for you as soon as I get it under way. Should take me about 2 days for the remove and install!! Then another couple days to get my Apexi computer tuned again. I plan on hurting some peoples feelings next summer but they won't know what happened till its to late!!!
I will keep you guys informed and I know I have a jdm wrx but its still a slight conversion!!!

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Old 12-16-2003, 01:19 AM   #2
stimpy
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Installing with AVCS or are you going with big cams and no AVCS or what?

-Jon
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Old 12-16-2003, 01:59 AM   #3
DuoMaxwell
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For now I am just going with the AVCS. I really haven't decided what to do as far as upping ponies. There are so many choices and everytime I think about them I get all excited and confused LOL!!

I guess one reason is the closed deck engine I am removing would be a nice little stroker project.
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Old 12-16-2003, 03:16 AM   #4
wrx_sti_ver4
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DuoMaxwell,

Just curious, but are you sure the AVCS motor will work in our body-style? I have a Version4 and I was told that there was no way that the AVCS motor would work...if you know for sure that it does, then I'm gonna have to do some shopping!
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Old 12-16-2003, 04:22 AM   #5
DuoMaxwell
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In work do you mean fit or do you mean as in ECU harness etc????

Also where are you at man??? I know your in Japan but where. I need some parts actually I need alot of parts and yahoo is killing me.

I need a Ver III or better bonnet, grill and headlights!!
Everytime I get on the auctions I see stockers go for almost as much as the CF/FRP ones!!!
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Old 12-16-2003, 08:50 AM   #6
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Umm...guess I should ask the guy that I talked to. He just told me that there was no way for the AVCS motor to fit in a GC8.

You have a PM!
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Old 12-16-2003, 10:40 AM   #7
Wedge
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Question

So you're going from an STi ver II closed deck engine, to a EJ20K(correction, EJ207) that has an open deck design?
Not planning on running much boost are ya?

Edit: Oops! Thanx Jaxx

Last edited by Wedge; 12-16-2003 at 01:48 PM.
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Old 12-16-2003, 12:34 PM   #8
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a 2001 STi engine would be a ej207
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Old 12-16-2003, 06:55 PM   #9
wrx_sti_ver4
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I figured that he'd be able to run heavy boost BECAUSE he's going to an open deck motor? A friend of mine has an open deck EJ207 (Version 6) and he's running 1.8kg/mm of boost at the track...
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Old 12-16-2003, 07:13 PM   #10
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Quote:
Originally posted by wrx_sti_ver4
I figured that he'd be able to run heavy boost BECAUSE he's going to an open deck motor? A friend of mine has an open deck EJ207 (Version 6) and he's running 1.8kg/mm of boost at the track...
Hey, G!

Actually the closed deck is a stronger design due to having a lot less coolant passages through the deck. This makes it a lot less likely to deform the cylinder bores under the greater stress.

Word.

-Milan
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Old 12-16-2003, 08:22 PM   #11
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Here's some info, it goes a while back though.
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Old 12-16-2003, 09:05 PM   #12
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cool thanks for the info!

Looks like I still have a lot to learn!
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Old 12-16-2003, 10:32 PM   #13
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The closed deck that everybody loves so dearly is run on an engine with a compression of 8.5 and a max safe boost of 1kg/mm. Here in other words get a boost controller and turn the boost up to 1.2kg/mm on that stocker TD05H and watch your engine go from strong to gone in a few months. This engine is strong and is an excellent platform to start on but unless your drag racing only that engine is squat. It will get walked by newer engines!!!
The newer engines have better air flow design, bigger injectors, better internals all around a better engine for auto-x useage.
Remember for you guys that do read JUN didn't use ver II heads and I do believe Juns cars would stomp Vinshu in the dirt!!!
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Old 12-16-2003, 10:41 PM   #14
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Ok, so does that mean I wasn't crazy then?
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Old 12-16-2003, 11:38 PM   #15
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Not really if you want huge power v2 heads are prob the way to go being as they are a close deck design. I personnally am not looking for huge power and the newer engines can handle close to 400whp safely and me I am only shooting for about 350 so thats a walk in the park!!!

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Old 12-17-2003, 01:22 PM   #16
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hmm still some confusion on the ej20G it is far to general of a description.. as it appears that some are 8.5 to 1 and others 8.0 to 1

the us market has been flooded with cheep legacy RS motors
an early version of the G.. they come with small turbos vf-10s and hydrolic lifters (noisey) and i beleive mine to be 8 to 1 from the compression numbers that i have gotten ... ill have to check with noah (works for cobb) he has a legacy rs motor in his wagon that he rebuilt

intersting that you gave the 1.2 number as the max boost ... as i have seen several places that 1.2 is the max befor the stock air to air intercooler will leak .. beyond 1 bar the 425 cc injectors are maxed out any way ...

still looking for a td05
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Old 12-17-2003, 07:10 PM   #17
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Interestingly enough, I was reading this month's Carboy article on the EJ20. It was a short piece concerning Aqua's tuning techniques and they said that the best lower half combination is an EJ207 (GDB) semi-closed deck, GDB crank, and Version 5 pistons. They say that a GC with this setup running high boost should have no problem whipping up on a GDB.

Any opinions/thoughts?
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Old 12-17-2003, 10:00 PM   #18
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Jaxx you are very correct I see several people who post their vin and by looking at it I can tell wether it came out of a GC8 or not. I posted a list so people would quit asking to decode their vin. LOL Its only good if the engine came out of a GC8 though!!

WRX that may be correct depending on what you use the car for. Jun has built 2 STis one GC and one GD and I hate to say it but the GD does the walking the GC just does alot of talking!!! I have seen several Ver III build ups with TD06s but I have not seen any Ver II or earlier build ups around here.
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Old 12-17-2003, 10:55 PM   #19
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What part of yahoo are you looking at????

Chris
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Old 12-17-2003, 11:33 PM   #20
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We're in Japan.:P We're looking at the Yahoo! Japan auctions.
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Old 12-18-2003, 12:34 AM   #21
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Default Re: Out with the old in with the NEW!!

Quote:
Originally posted by DuoMaxwell
Well it happened. I finally decided to detune my WRX or shall I say retune it!! I am removing the Ver II STi EJ20 and replacing it with a 2001 STi engine($950 30000km on it)!!! I will post pics for you as soon as I get it under way. Should take me about 2 days for the remove and install!! Then another couple days to get my Apexi computer tuned again. I plan on hurting some peoples feelings next summer but they won't know what happened till its to late!!!
I will keep you guys informed and I know I have a jdm wrx but its still a slight conversion!!!


what are ya gonna do with the old motor once you take it out.

have fun with the project

Jiffy
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Old 12-18-2003, 03:25 AM   #22
DuoMaxwell
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I will probably sell it as my wallet cannot afford building 2 toys!!

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Old 12-18-2003, 10:01 AM   #23
Subie2
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ooooohhh.. I wish I could read japanese.. Ive tried looking through the auctions but dont know what Im reading.. I want a V7 or V8 motor and tranny for my rex.


Chris
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Old 12-18-2003, 10:56 AM   #24
DuoMaxwell
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Alta vista will give a decent explanation more or less a jist of it if you know what I mean. The only problem with Yahoo Japan is the sellers won't ship overseas most of the time. If you you have Global IME and you can type in hiragana do it.

Go to auctions and click Japanese then select hiragana, then in the auctions box type this innpuressa then hit space one time it should change then hit enter 2 times you will come up with an average of 170 pages of WRX/STi goodies!!!
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Old 12-18-2003, 01:15 PM   #25
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