Definitely - I'm just trying to explore all my options to do all i can to keep up with those darned X's through the corners - The Tre Rear Diff was really my only option before I saw this ACD thing a few weeks ago. Initial results and reactions seem quite good - people are commenting on how much more rwd the IX is behaving - though I'm not quite sure how that works.

If you love the IX... I think these mods will do it for you
I've planned for these mods soon, maybe I'll post how everything works in conjunction, maybe try to get some comparisons as well. I'm banking on the mechanical rear diff doing 90% of what the s-ayc can - and that's really all i need from it. But if this ACD reflash is as capable as they say it is.. I'll no longer have any s-ayc envy at all. I'm certain, that like others have mentioned, it will prove equally capable to any s-awc and s-ayc in terms of raw cornering speed increase.

I dunno how this reflash would work for evo x's, with an increasingly complex system in which all the systems are integrated together

 

this thing about the handling CT9A vs CZ4A reminds me for this:

 

LMAO. I like that a lot.

 

I've been clicking for a solid hour and still nothing.

 

same here. i don't get it.

on a more serious note, a center diff and TRE rear diff upgrade have been kicking around in my head. not from the perspective of a "stand-in" for SAWC/AYC that a few folks here seem to think it could do (it simply could not, at all) but as a means of eliminating all driver's aids.

personally, i think that a predictable car is the most fun. for that reason, i didn't like the OEM ACD much in my IX. also, i wonder how much control authority the AYC retains once making more power.

back to priorities, ultimately.

 

I didn't mean quite literally as a replacement system for what the sawc/sayc is programmed to do.. What I'm suggesting is, that an upgrade in those two things can ultimately get the job done of increasing speed similarly to what the ayc is doing.

Like I mentioned, while the acd doesn't integrate everything, it does measure key variables while operating - if it is reprogrammed to optimize its performance (rather than safety) based on those variables, theoretically it should increase the 4wd systems operations significantly. And while the complexity of a mechanical rear diff is much less, say the ayc will be factoring in what else the car is doing/other inputs, the mechanical rear diff will simply be doing what it is designed to do as a machine.

Like I said, I didn't mean that it would be a stand in or replacement for sawc/sayc, but in terms of adding ultimate speed and car cornering ability it just simply can't be that far from the sawc/sayc system. I'll be fine if a car with sawc/sayc can exit a corner 1 or 2mph faster than my car with acd reflash/mechanical rear diff if my car can pick that speed up in the straight due to another advantage (such as weight).
If a car equipped with sawc/sayc is exiting corners 5mph faster than I am without these upgrades, then it's well worth it. I'm just doing what I can to increase it's ultimate handling ability through fixing weak points, without just looking over those problems and throwing on coilovers and r-compounds and whatever else is part of the simple equation to add more cornering speed.

Also, a mechanical rear diff/upgraded acd will be much more predictable than sawc/sayc by virtue that it is a simpler part. You know how it will behave because it is simply designed to behave that way, more so than something making constant adjustments automatically on its own based on all the inputs its receiving. You can learn in general how it will behave, but we'll never know exactly what it's going to do in a random particular situation.

 

Lol ^^ way to start your first post eh.

 

"the real M3". Please tell me you have an E30 so I can send mad respect your way.

 

indeed Sir, OG M3. thanks, by the way.

 

I haven't. I love the way the back end looks on them, but do not care for the nose so much. Anyway, there is an issue with the newest ones. I saw a post on NASIOC where they were getting together a list of cars to see if there was a specific pattern to the problems. I can't remember what it was...I think it was an issue with spun bearings...either way its not all of the cars, but there are a significant number of them with similar issues.

 

At this point I am extremely happy with my 05 MR 8!!

 

Quick little comparison between all 3 generations.

evo 8 <timing
evo 9 >timing
evo x >>>timing


evo x also loves to be much leaner on pump gas.

 

im starting to like the x alot more than my old 9. in a few years once my insurance goes back down imma either get an 8/9 or the newest one(xi,xii,xiii)

 

Ok, so I gave up my search to replace my 06 IX MR which replaced my 03 Evo VIII and bought a 08 X GSR. Going from a 400 awhp to a stock X is kinda... so I'll compare to the stock VIII. Feels a little less punchy off the line than the VIII. Pulls a little softer while rolling than the VIII. $5000 less than I payed for the VIII....SSS makes up for the performance difference and it was cheaper so, Evo X GSR+$5000 (and from what I've read, for $200-$500, a flash brings it up to par) I'm going to go ahead and say X > VIII. As far as going from a 6 speed back to a 5. I think the gear ratio is about .5 lower in the 5 in 5 than the 6 in 6 including the differential. RPMs made the car whine a little cruising at 80 and the gas mileage blows. (again the flash may fix a little of that). Comparing the rest of the car, VIII and IX vs X, The X is soooo freakin nice. It's like sitting in a BMW if you squint and don't look too closely at anything. The dash was very easy to get used to. The info stuff is nice. Great radio. Shift boot is cheap and I fully expect it to start cracking and flaking off in a year or so. The back seat is a ton more comfortable and roomy in the X. Again, at today's prices keeping a nicely equiped GSR around the price I payed for the VIII and 10k cheaper than I payed for the IX, I feel good about the purchase and perhaps in time I'll get it performing like the old MR for 1000s less.

 

my only issue, is that 1-9= Evolution, they evolved- same engine just kept making it better, basically same chassis all the way, the car kept evolving and getting better and better. now could it get any better from the IX? idk, the X is still a very aggressive car, but its just not an evo to me...
so im not sure