Welcome to the North American Subaru Impreza Owners Club Sunday October 26, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Engine Management & Tuning

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 11-23-2012, 04:07 PM   #1
fullCircling
Scooby Newbie
 
Member#: 290547
Join Date: Aug 2011
Location: Southern Tier NY
Default 2010 Dual AVCS Heads - What ECU to use?

What would be a good ecu to use for my application? I've got a '97 legacy that I'm putting a Dual AVCS STI swap into, and I'm not sure on what to use to control the dual AVCS.

Any suggestions?
* Registered users of the site do not see these ads.
fullCircling is offline   Reply With Quote
Old 11-24-2012, 09:07 AM   #2
jkopinga
Scooby Newbie
 
Member#: 220799
Join Date: Aug 2009
Chapter/Region: International
Location: Taiwan
Vehicle:
2006 Impreza WRX
WRC Blue

Default

Syvecs S6GP ;-)
jkopinga is offline   Reply With Quote
Old 11-24-2012, 01:55 PM   #3
fullCircling
Scooby Newbie
 
Member#: 290547
Join Date: Aug 2011
Location: Southern Tier NY
Default

lol $1200 max plz
fullCircling is offline   Reply With Quote
Old 11-25-2012, 01:36 PM   #4
fullCircling
Scooby Newbie
 
Member#: 290547
Join Date: Aug 2011
Location: Southern Tier NY
Default

bumpp
fullCircling is offline   Reply With Quote
Old 11-25-2012, 09:19 PM   #5
slowgenius
Scooby Specialist
 
Member#: 48350
Join Date: Nov 2003
Chapter/Region: MAIC
Location: Pittsburgh
Vehicle:
04 WRX

Default

To run those heads and use the avcs, you are gonna need all the sensors and wiring and ecu from the donor car, it is can bus. Or a vipec/link g4. Or AEM v2. They dont cost as much as syvecs i dont think. I just ordered a vipec v88 ($2250) to do something simillar. Its not going to be less than $1200 sorry. I have a davcs motor going in my 04 wrx.
slowgenius is offline   Reply With Quote
Old 11-26-2012, 01:30 AM   #6
NSFW
Scooby Guru
 
Member#: 140444
Join Date: Feb 2007
Chapter/Region: NWIC
Location: Near Seattle, WA
Vehicle:
05 Stage Free LGT
ATP 3076, 6MT, AVO FMIC

Default

Are there any devices on the market that could be used to control just the exhaust AVCS actuators? With something like that perhaps you could stick with the single-AVCS ECU and tune the exhaust AVCS separately.

I'm just not sure if the necessary widget exists...
NSFW is offline   Reply With Quote
Old 11-26-2012, 11:49 AM   #7
slowgenius
Scooby Specialist
 
Member#: 48350
Join Date: Nov 2003
Chapter/Region: MAIC
Location: Pittsburgh
Vehicle:
04 WRX

Default

I suppose a person could drive the solenoids and sensors with a micro controller, but its so tied in with the engine computerand whats its doing, its probably a good idea to controll it all at the same time with the same device. Thats why i like the vipec/link. It has map switching, als, ffs, etc. and bunch of inputs and outputs and easily configurable.
slowgenius is offline   Reply With Quote
Old 11-27-2012, 01:58 AM   #8
NSFW
Scooby Guru
 
Member#: 140444
Join Date: Feb 2007
Chapter/Region: NWIC
Location: Near Seattle, WA
Vehicle:
05 Stage Free LGT
ATP 3076, 6MT, AVO FMIC

Default

I'm sure integration would be nice, but I suspect you could get almost all of the benefits of DAVCS just with a microcontroller that watches RPM and boost and gives you a table to control the exhaust cam. It'd be a little bit tricky to align that table with the ECU's Load-vs-RPM table, but it doesn't seem like a big deal.

It's just a little bit past the edge of what I'd feel comfortable creating on my own, but if I go for a built motor I'll consider taking the leap. It would be neat to make it happen.
NSFW is offline   Reply With Quote
Old 11-27-2012, 04:13 AM   #9
jkopinga
Scooby Newbie
 
Member#: 220799
Join Date: Aug 2009
Chapter/Region: International
Location: Taiwan
Vehicle:
2006 Impreza WRX
WRC Blue

Default

What's the point doing a nice engine swap for a lot more coin than a proper ECU? Do yourself a favour and get a proper Standalone that will control all cams properly as well as other features needed. I know it's not cheap but it just makes the car so much more reliable and drivable. Complete integration is what you should target for.

Cheers,

Jasper.
jkopinga is offline   Reply With Quote
Old 11-27-2012, 06:45 AM   #10
slowgenius
Scooby Specialist
 
Member#: 48350
Join Date: Nov 2003
Chapter/Region: MAIC
Location: Pittsburgh
Vehicle:
04 WRX

Default

Nsfw, if you are that interested in a microcontroller style do it yourself deal, then i would check out the megasquirt. If you like building stuff im pretty sure it comes as a board and bags of components. Personally i wouldnt risk the cost of a built motor as jkopinga suggested, but maybe for a beater project.
slowgenius is offline   Reply With Quote
Old 11-27-2012, 09:29 AM   #11
jaxscuby
Sammo Hung
Moderator
 
Member#: 10613
Join Date: Sep 2001
Chapter/Region: South East
Location: S Ga / Hell Rock
Vehicle:
2002 USDM WRX
WRB

Default

engine bay, dash & ecu harness from 06-07 sti..
jaxscuby is offline   Reply With Quote
Old 11-27-2012, 09:43 AM   #12
slowgenius
Scooby Specialist
 
Member#: 48350
Join Date: Nov 2003
Chapter/Region: MAIC
Location: Pittsburgh
Vehicle:
04 WRX

Default

Will the 32 bit ecu from the 07 run the dual acvs heads? I know some people have blocked of the exhust port avcs with a plate machined to still alow oil to the cams.
slowgenius is offline   Reply With Quote
Old 11-27-2012, 02:15 PM   #13
fullCircling
Scooby Newbie
 
Member#: 290547
Join Date: Aug 2011
Location: Southern Tier NY
Default

I'm not really down with using some sort of piggyback controller. Seems kinda backwards for what I'm trying to do.

I really like the Link G4's, and it looks like I could get ahold of one of those used that would be in my price range... I love how bombproof these things are! See?



buutttt...

what OEM ECU options do I have? ECU wise, what would I have to do to pass New York state inspection? can i disable the other systems that are tied into an OEM dual avcs ecu (ABS?, VCD, etc) I don't wanna have to add VCD or something just to be able to pass inspection w/ dual avcs...

Last edited by fullCircling; 11-27-2012 at 02:35 PM.
fullCircling is offline   Reply With Quote
Old 11-27-2012, 02:50 PM   #14
slowgenius
Scooby Specialist
 
Member#: 48350
Join Date: Nov 2003
Chapter/Region: MAIC
Location: Pittsburgh
Vehicle:
04 WRX

Default

Ok so if you keep your oem ecu and leave it wired in to your obd stuff and use a link/vipec to run the motor, you can use open source or access port to keep the check engine light off and happy. That may get you past state inspection.

That is my plan to pass inspection. Hopefully ill be up and running by summer ill let you know.

In your case, i dont think the ecu controls your abs, etc. They are separate systems. Maybe an old wrx ecu would get you by, depending on whether your state looks at what the ecu and vin info is for the test.
slowgenius is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 05:44 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.