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Old 01-07-2010, 09:15 PM   #1
kinder
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Default Dual AVCS conversion even possible?

Is this a mod that can even be done? I know our engines are very modular but still. Had a guy here tell me that was his next mod. 09 STI AVCS system to 06 STI.
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Old 01-07-2010, 09:24 PM   #2
speedyHAM
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Sure- just swap the heads and install the electronics to control the AVCS.
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Old 01-07-2010, 10:33 PM   #3
howfast?
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^lol make it sound so easy... heads, motor harness, and ecu at least what else
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Old 01-07-2010, 10:48 PM   #4
speedyHAM
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Quote:
Originally Posted by howfast? View Post
^lol make it sound so easy... heads, motor harness, and ecu at least what else
You can use an aftermarket controller for the cams.

It is easy compared to a STI swap into a 2000 2.5RS. It's cake compared to the EG33 powered Datsun 240Z that someone here is working on.
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Old 01-08-2010, 05:52 PM   #5
69subaru360
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I wouldn't call it easy at all. 09 sti is a can bus ecu. To use that wiring harness will have you pulling your hair out.
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Old 01-09-2010, 08:47 AM   #6
Jaxx
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stock ecu is never gonna work
think link or hydra
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Old 02-24-2012, 09:17 PM   #7
OneManArmy
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Has anyone completed a swap with one of these.

I'd like to get a 2010 long block in to my 2004 wrx.
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Old 02-24-2012, 09:57 PM   #8
Ballistic1350
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I asked this very same question a while back and got a bunch of silly responses. Hopefully you can get someone to answer the question...
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Old 02-25-2012, 01:51 AM   #9
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Quote:
Originally Posted by OneManArmy View Post
Has anyone completed a swap with one of these.

I'd like to get a 2010 long block in to my 2004 wrx.
I did it to a friend's car. Wasn't easy but it got done. His car was a 2004 wrx, so I wired in everything. I mean everything. Used a Hydra 2.7 and done.

Good luck, you should make him sell it to you.
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Old 02-25-2012, 07:06 AM   #10
Vlad
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Quote:
Originally Posted by Jaxx View Post
stock ecu is never gonna work
think link or hydra
I see that there's an agreement about this, just curios why?
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Old 10-20-2012, 03:25 AM   #11
Monkey king
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Well I guess this answered my question about trying to convert an 05 sti to a dual AVCS system. Sounds like more trouble then it's worth.
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Old 10-21-2012, 03:40 PM   #12
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Quote:
Originally Posted by Vlad View Post
I see that there's an agreement about this, just curios why?
The factory GD STI ECU can't/won't run the second bank of AVCS and the effort to swap an GR STI ECU is prohibitively difficult (if even possible at all). A standalone designed for the GD but with extra outputs for variable cam systems is the only realistic way to make it happen.
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Old 10-22-2012, 07:38 PM   #13
fullCircling
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so im planning on running dual avcs in a 97 legacy. if i get a GR STI ECU and full harness can i get it to properly run the dual avcs? can a competent tuner disable the other features (mainly vdc)
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Old 10-22-2012, 08:52 PM   #14
KONKILR
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The GR ECU uses CAN BUS. If it doesn't see the other items on the BUS it will throw DTC's. I am unsure if just deleting these codes will keep the ECU happy. If you swapped the whole electrical system (harness and all modules) it should work fine.

jake
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Old 10-22-2012, 08:53 PM   #15
69subaru360
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Quote:
Originally Posted by fullCircling View Post
so im planning on running dual avcs in a 97 legacy. if i get a GR STI ECU and full harness can i get it to properly run the dual avcs? can a competent tuner disable the other features (mainly vdc)
No. GR is a can bus ecu. You need just about everything from the GR body loop for it to run. It's virtually impossible. ABS, HVAC, all the body controls, it's all integrated.

Buy a standalone.
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Old 10-22-2012, 10:04 PM   #16
WhatTurboLag?
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Not worth it. Hell I want to delete avcs. Simpler is better.
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Old 10-23-2012, 12:45 AM   #17
lancelucas
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Quote:
Originally Posted by 69subaru360 View Post
No. GR is a can bus ecu. You need just about everything from the GR body loop for it to run. It's virtually impossible. ABS, HVAC, all the body controls, it's all integrated.

Buy a standalone.
I do not envision it to be feasible either.

Unless you swap in every module and basically make the car a complete GR STI with a different shell. Not worth it.
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