ACD Tuning Options - USDM CT9As, Read!
Evolved Member
Joined: Mar 2008
Posts: 1,392
Likes: 2
From: uk
intresting stuff.
i watched a japanese evo video on track and the driver was switching between tarmac for some corners and gravel for others saying he had better grip in different modes so depending on the corner selecting a different acd option would help so you definately are on to something
i watched a japanese evo video on track and the driver was switching between tarmac for some corners and gravel for others saying he had better grip in different modes so depending on the corner selecting a different acd option would help so you definately are on to something
Evolving Member
Joined: Feb 2008
Posts: 254
Likes: 1
From: SoCal
Some more options from the rally world:
GEMS ACD ECU: http://www.gems.co.uk/?content=pages&id=evo-acd
Pectel ACD ECU: www.cosworth.com/f.ashx?id=63963
I don't know for sure, but I think the GEMS & Pectel ACD ECUs are the same or very similar e.g. one is a variant of the other. As a point of interest, the Sierra Sierra Enterprises Time Attack Evo uses a Pectel ACD ECU, along with a Pectel SQ6 ECU for the engine.
Also, Do-Luck makes an ACD ECU, available through Sumo Power in the U.K.:
http://217.67.240.11/sumopictures.su...controller.pdf
The most interesting thing about the Do-Luck ACD ECU is that it has 3 separate manual controls, which means you can vary the ACD behavior in real-time. Also of interest, near the bottom of the product brief it states "To minimise any unneccessary wear on the centre differential and transfer (case), the Do-Luck Torque Manager unit automatically reverts to the manufacturers factory settings at any speed between 38mph & 110MPH (60 - 180KMH)"
GEMS ACD ECU: http://www.gems.co.uk/?content=pages&id=evo-acd
Pectel ACD ECU: www.cosworth.com/f.ashx?id=63963
I don't know for sure, but I think the GEMS & Pectel ACD ECUs are the same or very similar e.g. one is a variant of the other. As a point of interest, the Sierra Sierra Enterprises Time Attack Evo uses a Pectel ACD ECU, along with a Pectel SQ6 ECU for the engine.
Also, Do-Luck makes an ACD ECU, available through Sumo Power in the U.K.:
http://217.67.240.11/sumopictures.su...controller.pdf
The most interesting thing about the Do-Luck ACD ECU is that it has 3 separate manual controls, which means you can vary the ACD behavior in real-time. Also of interest, near the bottom of the product brief it states "To minimise any unneccessary wear on the centre differential and transfer (case), the Do-Luck Torque Manager unit automatically reverts to the manufacturers factory settings at any speed between 38mph & 110MPH (60 - 180KMH)"
Some more options from the rally world:
GEMS ACD ECU: http://www.gems.co.uk/?content=pages&id=evo-acd
Pectel ACD ECU: www.cosworth.com/f.ashx?id=63963
I don't know for sure, but I think the GEMS & Pectel ACD ECUs are the same or very similar e.g. one is a variant of the other. As a point of interest, the Sierra Sierra Enterprises Time Attack Evo uses a Pectel ACD ECU, along with a Pectel SQ6 ECU for the engine.
Also, Do-Luck makes an ACD ECU, available through Sumo Power in the U.K.:
http://217.67.240.11/sumopictures.su...controller.pdf
The most interesting thing about the Do-Luck ACD ECU is that it has 3 separate manual controls, which means you can vary the ACD behavior in real-time. Also of interest, near the bottom of the product brief it states "To minimise any unneccessary wear on the centre differential and transfer (case), the Do-Luck Torque Manager unit automatically reverts to the manufacturers factory settings at any speed between 38mph & 110MPH (60 - 180KMH)"
GEMS ACD ECU: http://www.gems.co.uk/?content=pages&id=evo-acd
Pectel ACD ECU: www.cosworth.com/f.ashx?id=63963
I don't know for sure, but I think the GEMS & Pectel ACD ECUs are the same or very similar e.g. one is a variant of the other. As a point of interest, the Sierra Sierra Enterprises Time Attack Evo uses a Pectel ACD ECU, along with a Pectel SQ6 ECU for the engine.
Also, Do-Luck makes an ACD ECU, available through Sumo Power in the U.K.:
http://217.67.240.11/sumopictures.su...controller.pdf
The most interesting thing about the Do-Luck ACD ECU is that it has 3 separate manual controls, which means you can vary the ACD behavior in real-time. Also of interest, near the bottom of the product brief it states "To minimise any unneccessary wear on the centre differential and transfer (case), the Do-Luck Torque Manager unit automatically reverts to the manufacturers factory settings at any speed between 38mph & 110MPH (60 - 180KMH)"
Evolving Member
Joined: Feb 2008
Posts: 254
Likes: 1
From: SoCal
I don't know the answer to that question, but if the pinout (i.e. number of pins, same pin assignment for the different signals etc.) for the ACD ECU is the same in the U.S. as everywhere else, then the standalone ACD ECUs i.e. the GEMS and the Pectel should work fine.
USDM compatibility is maybe a little less certain regarding the Do-Luck ACD ECU, since I believe the Do-Luck ACD ECU is a piggyback ACD ECU, rather than a standalone.
P.S. It looks like I may have accidentally posted the link for the Pectel engine ECU above, rather than the Pectel ACD ECU. Sorry about that.
USDM compatibility is maybe a little less certain regarding the Do-Luck ACD ECU, since I believe the Do-Luck ACD ECU is a piggyback ACD ECU, rather than a standalone.
P.S. It looks like I may have accidentally posted the link for the Pectel engine ECU above, rather than the Pectel ACD ECU. Sorry about that.
I don't know the answer to that question, but if the pinout (i.e. number of pins, same pin assignment for the different signals etc.) for the ACD ECU is the same in the U.S. as everywhere else, then the standalone ACD ECUs i.e. the GEMS and the Pectel should work fine.
USDM compatibility is maybe a little less certain regarding the Do-Luck ACD ECU, since I believe the Do-Luck ACD ECU is a piggyback ACD ECU, rather than a standalone.
P.S. It looks like I may have accidentally posted the link for the Pectel engine ECU above, rather than the Pectel ACD ECU. Sorry about that.
USDM compatibility is maybe a little less certain regarding the Do-Luck ACD ECU, since I believe the Do-Luck ACD ECU is a piggyback ACD ECU, rather than a standalone.
P.S. It looks like I may have accidentally posted the link for the Pectel engine ECU above, rather than the Pectel ACD ECU. Sorry about that.
Regarding the Cyber EVO ACD unit - I looked into getting that one - but you have to send your ACD ECU to JAPAN to have it reflashed. That means a LONG down-time . . .
Also - I read somewhere years ago that Cyber EVO folks had ACD reflashing software/hardware availbable to purchase, but it was all in Japanese. I even saw some screen shots of the software here somewhere on EVOM. . . but I can't find it now. . . I wonder if this is what Gruppe-S has used to develop their maps?? I think they have engineers/contacts in Japan.
Also - I read somewhere years ago that Cyber EVO folks had ACD reflashing software/hardware availbable to purchase, but it was all in Japanese. I even saw some screen shots of the software here somewhere on EVOM. . . but I can't find it now. . . I wonder if this is what Gruppe-S has used to develop their maps?? I think they have engineers/contacts in Japan.
Regarding the Cyber EVO ACD unit - I looked into getting that one - but you have to send your ACD ECU to JAPAN to have it reflashed. That means a LONG down-time . . .
Also - I read somewhere years ago that Cyber EVO folks had ACD reflashing software/hardware availbable to purchase, but it was all in Japanese. I even saw some screen shots of the software here somewhere on EVOM. . . but I can't find it now. . . I wonder if this is what Gruppe-S has used to develop their maps?? I think they have engineers/contacts in Japan.
Also - I read somewhere years ago that Cyber EVO folks had ACD reflashing software/hardware availbable to purchase, but it was all in Japanese. I even saw some screen shots of the software here somewhere on EVOM. . . but I can't find it now. . . I wonder if this is what Gruppe-S has used to develop their maps?? I think they have engineers/contacts in Japan.
Regarding the Cyber EVO ACD unit - I looked into getting that one - but you have to send your ACD ECU to JAPAN to have it reflashed. That means a LONG down-time . . .
Also - I read somewhere years ago that Cyber EVO folks had ACD reflashing software/hardware availbable to purchase, but it was all in Japanese. I even saw some screen shots of the software here somewhere on EVOM. . . but I can't find it now. . . I wonder if this is what Gruppe-S has used to develop their maps?? I think they have engineers/contacts in Japan.
Also - I read somewhere years ago that Cyber EVO folks had ACD reflashing software/hardware availbable to purchase, but it was all in Japanese. I even saw some screen shots of the software here somewhere on EVOM. . . but I can't find it now. . . I wonder if this is what Gruppe-S has used to develop their maps?? I think they have engineers/contacts in Japan.
http://www.garagehrs.com/hotparts/cy...cdselecter.htm
Evolving Member
Joined: Apr 2007
Posts: 286
Likes: 0
From: Laguna Hills
depends on what ralliart ecu you are looking for...they offer a few.
one specifically for gravel and one for tarmac along with a third which I forget.
I have the gravel ecu and it is fun, but definetely I am going with my garage HRS tune for the track.
one specifically for gravel and one for tarmac along with a third which I forget.
I have the gravel ecu and it is fun, but definetely I am going with my garage HRS tune for the track.
Evolving Member
Joined: Apr 2007
Posts: 286
Likes: 0
From: Laguna Hills
wow you guys have not done your homework. This is 2010, ACD info has been out since the evo 8 came out (for US evos)...but better late than never.
ACD for evo 8 and 9 are interchangeable. ACD "flashes" are good regardless if they are EDM, UKDM, USDM, or JDM.
All legit ACD tunes, remove AYC functionallity...therefore US cars have no worries.
Evo 7 ACD units only work with evo 7...I tried one in my car, and all 3 lights went on after about 1 minute of driving.
Garage HRS, along with Ralliart, are all around 5-$700. I dont know if ralliart offers theirs anymore as they are out of business.
http://www.garagehrs.com/hotparts/cy...berevo-acd.htm
The gentleman who runs GarageHRS speaks a lil english...so you could order from him.
ACD for evo 8 and 9 are interchangeable. ACD "flashes" are good regardless if they are EDM, UKDM, USDM, or JDM.
All legit ACD tunes, remove AYC functionallity...therefore US cars have no worries.
Evo 7 ACD units only work with evo 7...I tried one in my car, and all 3 lights went on after about 1 minute of driving.
Garage HRS, along with Ralliart, are all around 5-$700. I dont know if ralliart offers theirs anymore as they are out of business.
http://www.garagehrs.com/hotparts/cy...berevo-acd.htm
The gentleman who runs GarageHRS speaks a lil english...so you could order from him.
I mean it's not really an option frequently spoken of on this forum so I just wanted to compile them. You were a big pusher of the Gruppe-S flash when it first came out, but I was just looking for something a little more auto-x friendly