kyoo

iTrader: (29)

right, but doing it through drivetrain vs. suspension, for example, lets you not have to set the rear up super loose and lose too much grip while still letting the car turn in. either way, a must have for a USDM 8/9

kaj

iTrader: (60)

You thinkin' the ACD would allow a less-aggressive suspension setup? I dunno. I think we're stuck with compensating the way we always have. ACD helps, but that's about it.

MrAWD

Well, on X, all of that active gadgetry is definitely doing something and affecting modes done to the car somewhat for sure! Once you get things tighter, it finds the way to loosen things up through the drivetrain actuation and the other way around.
I think the right way to see this is to look at the whole thing as one system. This car is meant to be driven the way that can use all of the magic stuff and than lots of things end up where they need to be. Adjusting the ACD brain, definitely affects this magical circle!

kyoo

iTrader: (29)

oh yes. I've adjusted my set up from it anyway. less aggressive rear bar for example. it's amazing the difference the tune has made for me. much like how you would set up a fwd car to be looser than a rwd car I've set up the Evo towards the rwd spectrum. I'm constantly tweaking the car though.

kaj

iTrader: (60)

Possibly. My setup is a LOT more mild than some, maybe that's why mine seems fine as-is. It was good before, but now it's even better. The car feels downright neutral on the road course (I've made a couple other changes). We'll see how it does at autox. I never went too crazy with parts or settings, so I haven't had to dial anything back. In fact, I may have a bit more wiggle room to get aggressive. I don't think I will, though. The car felt PERFECT my last outing.
If an ACD tune allows someone to introduce a bit more compliance into the suspension, I can't think of how that could be a bad thing. That's very good news!

kaj

iTrader: (60)

I'd like to get rid of my ACD. I'm assuming I can toss in a Wavetrac setup and be done with it?

kyoo

iTrader: (29)

wut? I think this is re: the front diff not the center - I thought u just got the ACD tune - don't like it anymore?

LetsGetThisDone

iTrader: (1)

Getting rid of the ACD on a car that turns is very counter intuitive to going fast. Also, the ACD is for the center diff (Active Center Differential). This conversation is about the front diff.

kaj

iTrader: (60)

Maaan. I was wanting to be rid of it. The ACD is cool, but I'd like to keep things mechanical, if possible. I'd like to ditch the pump, fluids, etc. if I could.

And yeah... I read fast and mixed up the front/center diffs

Name User

iTrader: (1)

Sorry, off topic but:

We never got the AYC anyway so it was never going to be the factory Evo experience, it was always gimped. I think that going all-mechanical is sort of an American interpretation of the Evo.

I just swapped from ACD to a non-ACD transfercase and also got the Wavetrac. It's still a 50:50 split, I don't feel like I'm missing anything (besides 40 lbs of things I don't understand).

alpinaturbo

iTrader: (5)

Reflash ACD ECU
Drive a car on twisty road
Then you'll see how BIG the influence of ACD is

ACD is for cornering and also braking, especially under slippery conditions.

kyoo

iTrader: (29)

kaj has reflashed the ACD, which makes it odder to me that he'd want to get rid of it.

kaj

iTrader: (60)

I prefer mechanical parts to electronic, is all. It may not be as fancy and "slower", but I'm cool with that. ABS is about the only thing I'd wanna keep. I recognize ACD, AYC, PDK, etc are all faster, but meh.

Name User

iTrader: (1)

Yup, plus when are we gonna see rain? Next February maybe?

I'm down with doing a comparison if any of you ACD tunas want to go to an autocross or something.

kaj

iTrader: (60)

I don't race in the rain. If I'm caught in it, I'll deal with a slower car. That's okay. I will say the ACD is AMAZING on the road course and AutoX. The car did exactly what I wanted, when. It definitely suited my driving style. It was that much better than stock. "That much" better than a tuned, mechanical setup? I have no clue.
I think I noticed more of a diff during AutoX than the road course, but that's probably no surprise.