ACD Tuning Options - USDM CT9As, Read!
Oct 14, 2016, 02:55 PM
#497
+1 I PM'ed you back, Tom, regarding my paypal info for the invoice, but EvoM says it's unable to send you the message.
Let us know. Thanks!
@tscompusa
Let us know. Thanks!
@tscompusa
hey ts comp
have you made any new ACD maps since i pick up ACD mapping from you ?
I still have an extra ACD ECU i can send if there are new maps made...i pretty much run the number 1 map out of the 3 i got, i guess its the dry map.
let me know if there are any new mappings you have and pm info where to send and cost etc.
fyi
I've had the TSCOMP reflash i think two years now along with the restocked rear lsd and full urethane bushings, corner balance and coil over height adjustments.
the car is mad. the way every evo should be...i think an more aggressive lsd is the only next step i have.
have you made any new ACD maps since i pick up ACD mapping from you ?
I still have an extra ACD ECU i can send if there are new maps made...i pretty much run the number 1 map out of the 3 i got, i guess its the dry map.
let me know if there are any new mappings you have and pm info where to send and cost etc.
fyi
I've had the TSCOMP reflash i think two years now along with the restocked rear lsd and full urethane bushings, corner balance and coil over height adjustments.
the car is mad. the way every evo should be...i think an more aggressive lsd is the only next step i have.
Oct 17, 2016, 01:12 AM
#498
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I wouldn't even know what to adjust for the acd. I do know I don't even use the stock maps anymore because they feel pretty flat compared to the new maps I got from you.
Maybe I'll just sell my original acd ecu. Or keep it as backup and send it to you reflashed as a backup.
Maybe I'll just sell my original acd ecu. Or keep it as backup and send it to you reflashed as a backup.
Here or tscompusa@gmail.com I had to renew my vendor status that's why it wasn't letting anyone PM me on here.
Resend the messages please.
They are not, like Kyoo mentioned.
We do not have anything new, But we can adjust stuff custom if asked.
Resend the messages please.
They are not, like Kyoo mentioned.
We do not have anything new, But we can adjust stuff custom if asked.
Oct 18, 2016, 01:42 PM
#502
EvoM Guru
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Ebay
Jun 23, 2017, 02:08 PM
#507
was reading this article by motec from 2013 - pretty awesome results and give some insight into how the ACD should be set up - as I thought, more lock on braking, more open on corner entry/turn in, more lock on exit
http://www.motec.com/filedownload.ph...pdf?docid=4399
worth noting a few things:
Lap times, Evo X RS (Winton Raceway)
Fully locked 50:50 1m:36.9sec
Fully open (no control) 1m:35.8sec
Tuned diff (mixed values) 1m:35.1sec
I believe the evo X RS does not have AYC OR ABS, which could be a big factor. note that with the ACD set to open, how much oversteer is added into the car. this is corollary to what we've seen in our ACD improvements.
This is especially crucial for our USDM cars, which never got AYC, to compensate for that turn in/removal of understeer/push. More oversteer into corner entry, check. More lock under brakes allows stability, and as noted they go near full lock on acceleration and it practically allows the car to power oversteer without an aggressive or active rear diff.
Can't stress again how crucial this is for our cars. With the factory ACD setup + a mechanical diff on the USDM 8/9, what you're going to run into is understeer on corner entry and fwd like behavior. the ACD needs to be tuned to allow for faster turn-in & corner entry + some oversteer.
From what I could tell, early aftermarket ACD options just increased the lock period. These newly tuned ones have really improved the setup here to allow for optimal performance for corner entry, braking, and acceleration.
http://www.motec.com/filedownload.ph...pdf?docid=4399
worth noting a few things:
Lap times, Evo X RS (Winton Raceway)
Fully locked 50:50 1m:36.9sec
Fully open (no control) 1m:35.8sec
Tuned diff (mixed values) 1m:35.1sec
I believe the evo X RS does not have AYC OR ABS, which could be a big factor. note that with the ACD set to open, how much oversteer is added into the car. this is corollary to what we've seen in our ACD improvements.
This is especially crucial for our USDM cars, which never got AYC, to compensate for that turn in/removal of understeer/push. More oversteer into corner entry, check. More lock under brakes allows stability, and as noted they go near full lock on acceleration and it practically allows the car to power oversteer without an aggressive or active rear diff.
Can't stress again how crucial this is for our cars. With the factory ACD setup + a mechanical diff on the USDM 8/9, what you're going to run into is understeer on corner entry and fwd like behavior. the ACD needs to be tuned to allow for faster turn-in & corner entry + some oversteer.
From what I could tell, early aftermarket ACD options just increased the lock period. These newly tuned ones have really improved the setup here to allow for optimal performance for corner entry, braking, and acceleration.
Last edited by kyoo; Jun 23, 2017 at 02:36 PM.
The following users liked this post:
codgi (Jun 23, 2017)
Jun 23, 2017, 02:43 PM
#508
I definitely wasn't taking full advantage of the re-tuned ACD in my car during my last track day. I could have braked later and harder as well as powered out of turns sooner. I was being too easy on it.
I can't wait for another try.
I can't wait for another try.