Evo X vs. Evo VIII and IX
Sorry, didn't see this -
I did reach 3rd, but only in the "long" straights. A buddy of mine has one, we tried each others for a change. Rest of the course was fairly tight, staying in 2nd gear. I did notice it though, but I don't know how it's programmed to work, if there's a difference at lower speeds or not.
A post of a guy who actually spun 180 after the rear diff upgrade - the guy in the post right under said he did the same thing.
https://www.evolutionm.net/forums/5676537-post171.html
You're right though, I've not driven a X in a high speed track. Closest to that I've come is in a video game lol
I did reach 3rd, but only in the "long" straights. A buddy of mine has one, we tried each others for a change. Rest of the course was fairly tight, staying in 2nd gear. I did notice it though, but I don't know how it's programmed to work, if there's a difference at lower speeds or not.
A post of a guy who actually spun 180 after the rear diff upgrade - the guy in the post right under said he did the same thing.
https://www.evolutionm.net/forums/5676537-post171.html
You're right though, I've not driven a X in a high speed track. Closest to that I've come is in a video game lol
So here is some food for thoughts..
WRC after the EVo VI /wich came out the frist fairly good Super AYC, won everything in the WRC as not a WRC car.. So in short the WRC cars falled behind the lesser category AYC controlled EVo.
THen they banned the AYC, Make a note here the WRC and FIA banned the AYC... Not because it was unsafe

It was really embarrassing for the WRC teams...
after that the EVo without AYC never won really anything. But on Groupe N in a same time, where they can run it , the newer evo's were faster then a counter part EVo VI's....
Also make a moment here. Not one guy or two ... SO we are talking about the majority of the running evos. Since then as the car so the AYC advances even when they gain weight they are still just as fast or even fastere then a previous versions. /newer versions also bigger then heavier then the older once/
Also worth to mention , because the rally rule restrictor plate, the cars engine performance are almost dead even...
The evos are famous about handling, which comes from the S-AYC mostly.
Not to mention the AYC is nothing else but just an advanced LSD.
And only draw back is with them the maintanace or the replacement price.
There are tons of upgrades for the AYC out there just some reason in the US market did not picked that up...
Maybe too much straight race and number chasing instead turning and breaking.
Finally remember , the FIA banned the AYC from rally. They called it too much advantage over the mechanical one. That is a fact. Those guy there are not internet scientist and racers.
If you dont beleive me fine , but at least consider the FIA and the WRC rule guys who actually know something about these things. They have to defend they decisions front of the world.
I dont care whos buddy drives where, and what , and what he felt, there are facts and proven records out there. From pro events pro teams and for me that is the a holly ground. Even when i dont like WRC and FIA. For me they are far more reilable sources then somebody best friend feelings...
/not to mention my own experience with AYC and non AYC evos, but that is my own opinion/
Rob
Last edited by Robevo RS; Dec 11, 2009 at 06:36 PM.
i really dont want to debate on this one since looks like couple of you not getting it.
So here is some food for thoughts..
WRC after the EVo VI /wich came out the frist fairly good Super AYC, won everything in the WRC as not a WRC car.. So in short the WRC cars falled behind the lesser category AYC controlled EVo.
THen they banned the AYC, Make a note here the WRC and FIA banned the AYC... Not because it was unsafe
It was really embarrassing for the WRC teams...
after that the EVo without AYC never won really anything. But on Groupe N in a same time, where they can run it , the newer evo's were faster then a counter part EVo VI's....
Also make a moment here. Not one guy or two ... SO we are talking about the majority of the running evos. Since then as the car so the AYC advances even when they gain weight they are still just as fast or even fastere then a previous versions. /newer versions also bigger then heavier then the older once/
Also worth to mention , because the rally rule restrictor plate, the cars engine performance are almost dead even...
The evos are famous about handling, which comes from the S-AYC mostly.
Not to mention the AYC is nothing else but just an advanced LSD.
And only draw back is with them the maintanace or the replacement price.
There are tons of upgrades for the AYC out there just some reason in the US market did not picked that up...
Maybe too much straight race and number chasing instead turning and breaking.
Finally remember , the FIA banned the AYC from rally. They called it too much advantage over the mechanical one. That is a fact. Those guy there are not internet scientist and racers.
If you dont beleive me fine , but at least consider the FIA and the WRC rule guys who actually know something about these things. They have to defend they decisions front of the world.
I dont care whos buddy drives where, and what , and what he felt, there are facts and proven records out there. From pro events pro teams and for me that is the a holly ground. Even when i dont like WRC and FIA. For me they are far more reilable sources then somebody best friend feelings...
/not to mention my own experience with AYC and non AYC evos, but that is my own opinion/
Rob
So here is some food for thoughts..
WRC after the EVo VI /wich came out the frist fairly good Super AYC, won everything in the WRC as not a WRC car.. So in short the WRC cars falled behind the lesser category AYC controlled EVo.
THen they banned the AYC, Make a note here the WRC and FIA banned the AYC... Not because it was unsafe

It was really embarrassing for the WRC teams...
after that the EVo without AYC never won really anything. But on Groupe N in a same time, where they can run it , the newer evo's were faster then a counter part EVo VI's....
Also make a moment here. Not one guy or two ... SO we are talking about the majority of the running evos. Since then as the car so the AYC advances even when they gain weight they are still just as fast or even fastere then a previous versions. /newer versions also bigger then heavier then the older once/
Also worth to mention , because the rally rule restrictor plate, the cars engine performance are almost dead even...
The evos are famous about handling, which comes from the S-AYC mostly.
Not to mention the AYC is nothing else but just an advanced LSD.
And only draw back is with them the maintanace or the replacement price.
There are tons of upgrades for the AYC out there just some reason in the US market did not picked that up...
Maybe too much straight race and number chasing instead turning and breaking.
Finally remember , the FIA banned the AYC from rally. They called it too much advantage over the mechanical one. That is a fact. Those guy there are not internet scientist and racers.
If you dont beleive me fine , but at least consider the FIA and the WRC rule guys who actually know something about these things. They have to defend they decisions front of the world.
I dont care whos buddy drives where, and what , and what he felt, there are facts and proven records out there. From pro events pro teams and for me that is the a holly ground. Even when i dont like WRC and FIA. For me they are far more reilable sources then somebody best friend feelings...
/not to mention my own experience with AYC and non AYC evos, but that is my own opinion/
Rob
That ban was a ban of active front and rear diffs, not just AYC. And didn't that ban start in 2006? Not right after the Evo 6 in 2000 as you seem to be implying. Unless I'm mistaken, I'm really not THAT into rally. Also, its not ONLY mitsu that was using active diffs/active rear diffs.. at LEAST also subie was using them too, since 1998... As stated, times ran by the top drivers weren't affected.
How much benefit for costs is the question.. No one said anything about it NOT being better. Like I said, a mechanical will do 95% of what the AYC will do, at least on the tarmac.
I think for rallying, it makes a bigger difference too, as traction is much less there, and the more calculations the computer can make the maximize traction, the benefits are multiplied for rally. Hell, if I were running rally I'd want it too - I'd feel way more safe in those conditions if a computer was sorting power distribution for me. On tarmac, I want consistency, to know exactly what the diff is doing.
But for rally, I totally get what you're saying.
https://www.evolutionm.net/forums/ev...dm-x-rs-3.html
That ban was a ban of active front and rear diffs, not just AYC. And didn't that ban start in 2006? Not right after the Evo 6 in 2000 as you seem to be implying. Unless I'm mistaken, I'm really not THAT into rally. Also, its not ONLY mitsu that was using active diffs/active rear diffs.. at LEAST also subie was using them too, since 1998... As stated, times ran by the top drivers weren't affected.
How much benefit for costs is the question.. No one said anything about it NOT being better. Like I said, a mechanical will do 95% of what the AYC will do, at least on the tarmac.
I think for rallying, it makes a bigger difference too, as traction is much less there, and the more calculations the computer can make the maximize traction, the benefits are multiplied for rally. Hell, if I were running rally I'd want it too - I'd feel way more safe in those conditions if a computer was sorting power distribution for me. On tarmac, I want consistency, to know exactly what the diff is doing.
But for rally, I totally get what you're saying.
That ban was a ban of active front and rear diffs, not just AYC. And didn't that ban start in 2006? Not right after the Evo 6 in 2000 as you seem to be implying. Unless I'm mistaken, I'm really not THAT into rally. Also, its not ONLY mitsu that was using active diffs/active rear diffs.. at LEAST also subie was using them too, since 1998... As stated, times ran by the top drivers weren't affected.
How much benefit for costs is the question.. No one said anything about it NOT being better. Like I said, a mechanical will do 95% of what the AYC will do, at least on the tarmac.
I think for rallying, it makes a bigger difference too, as traction is much less there, and the more calculations the computer can make the maximize traction, the benefits are multiplied for rally. Hell, if I were running rally I'd want it too - I'd feel way more safe in those conditions if a computer was sorting power distribution for me. On tarmac, I want consistency, to know exactly what the diff is doing.
But for rally, I totally get what you're saying.

Subby differential sucks

I like it though but they could never get it right on the stock car. That is why they let YOU choose the set up. and then they can say , "hey , it wasn't me "




When you are upgrade the AYC it does miracles. Much faster reaction times , much stronger etc. But lots of money. different pressure switch, inside parts tune etc. its insane. The tarmac set up version would blow you away ...
well the oem designed for close to oem power level, so when you are too far away from it , and you are a self-respecting tuner, you should do it with the AYC too. Not just a transmission...
yes i think you are right about 2006 or something, like that.
hm i have to look it up
But i 'm getting more and more sure it wasnt 2001.
Last edited by Robevo RS; Dec 11, 2009 at 07:36 PM.
so i checked it out and i was right 
The WRC Evo , did not had any electrical drive train component.
front diff mechanical
center passive mechanical
rear mechanical.
SO i was right the WRC car had none of the EVo AYC stuff. Like they had it all away up to the VI.
THe Mitsubishi run the WRC Evo in 2004 first when they returned to the rally, after they where forced to run WRC rules .
2001 was the last run for them as a grupe A car. SO they pulled out from the WRC, until they came back in 04 .

The WRC Evo , did not had any electrical drive train component.
front diff mechanical
center passive mechanical
rear mechanical.
SO i was right the WRC car had none of the EVo AYC stuff. Like they had it all away up to the VI.
THe Mitsubishi run the WRC Evo in 2004 first when they returned to the rally, after they where forced to run WRC rules .
2001 was the last run for them as a grupe A car. SO they pulled out from the WRC, until they came back in 04 .
Last edited by Robevo RS; Dec 22, 2009 at 07:17 PM.
spoken from the man himself from an old thread
i agree though about rallying completely - like mentioned before it didnt affect the top drivers but i bet it let all the drivers below them run a LOT better/closer times to them
I don't have any experience driving a IX WITH the Tre rear diff, but have been behind Nils and talked with him quite a bit about it.
That said, I think alot of it depends on power output of the car. My car below 350whp was a dream, not so much power oversteer, there just wasn't much, if any, understeer. Now that I have the Cusco LSD in the car, along with 450+whp, the understeer is cured and it feels alot like how Nils' car appears to drive. My car won't power oversteer as much as his does (he also has the 40/60 tho), but it does come around any time I need it to. Much nicer than the push of the AYC diff and over 350ish whp.
Maybe soon Nils and I will trade cars and we can give everyone some good feedback. As of now, I would say Stock IX w/TRE vs. Stock X would be very similar. Hope that helps a bit guys.
That said, I think alot of it depends on power output of the car. My car below 350whp was a dream, not so much power oversteer, there just wasn't much, if any, understeer. Now that I have the Cusco LSD in the car, along with 450+whp, the understeer is cured and it feels alot like how Nils' car appears to drive. My car won't power oversteer as much as his does (he also has the 40/60 tho), but it does come around any time I need it to. Much nicer than the push of the AYC diff and over 350ish whp.
Maybe soon Nils and I will trade cars and we can give everyone some good feedback. As of now, I would say Stock IX w/TRE vs. Stock X would be very similar. Hope that helps a bit guys.

I'm not sure if it is relevant or not but RS comes with 1.5way rear LSD as standard in Japan, whether for IX or X, or any other past models since IV.
Only way to test it accurately would be to have an RS dressed up as much GSR parts as possible except AYC, which includes installing ABS, or get two GSRs, remove AYC from one and make software adjustments. Then of course get one pro driver and have him run as many laps as he can on various tracks and compare the average lap times.
What seems to be certain though, is that the RS with stock brembos and wheel package (and sometimes wings and seats) run about 1 sec faster on 1 min laps, and about 2 sec faster on 2 min laps. Such RS weighs about 110-130lbs less than a GSR (complete base with steelies and crap brakes weigh 220lbs less). I don't know if a GSR with 110-130lbs weight reduction would be any faster than that, but that should prove the benefit of ABS and AYC (or prove that they don't help much).
If motorsports did not ban so many things, all the vehicles including race cars would be so much more advanced and efficient now. I honestly don't understand who decides what are acceptable changes and what are not. If they really cared so much about justice and safety, all race cars should still be the exact spec as race cars back in early 20th century, perhaps with more safety shieldings and power restrictions.
Only way to test it accurately would be to have an RS dressed up as much GSR parts as possible except AYC, which includes installing ABS, or get two GSRs, remove AYC from one and make software adjustments. Then of course get one pro driver and have him run as many laps as he can on various tracks and compare the average lap times.
What seems to be certain though, is that the RS with stock brembos and wheel package (and sometimes wings and seats) run about 1 sec faster on 1 min laps, and about 2 sec faster on 2 min laps. Such RS weighs about 110-130lbs less than a GSR (complete base with steelies and crap brakes weigh 220lbs less). I don't know if a GSR with 110-130lbs weight reduction would be any faster than that, but that should prove the benefit of ABS and AYC (or prove that they don't help much).
If motorsports did not ban so many things, all the vehicles including race cars would be so much more advanced and efficient now. I honestly don't understand who decides what are acceptable changes and what are not. If they really cared so much about justice and safety, all race cars should still be the exact spec as race cars back in early 20th century, perhaps with more safety shieldings and power restrictions.
Last edited by 4Trouble; Dec 23, 2009 at 10:19 PM.
"As of now, I would say Stock IX w/TRE vs. Stock X would be very similar. Hope that helps a bit guys. "
here is the solution and cheaper upgrade for the OEM AYC from him, after he achieved the lot higher hp.
"Now that I have the Cusco LSD in the car, along with 450+whp, the understeer is cured and it feels alot like how Nils' car appears to drive."
The AYC is not programmed for even near 350 hp never mind 350whp...

AS i told you when the whp grows the AYC needs to be upgraded if you are serious. Even so the ACD.
There are ECU's - tunes - parts for the ACD and the AYC for tune up. In rally you use different unit for tarmac or gravel. Ring a bell with a mechanical LSD version? /since it's an AYC is a smart LSD.
/Thinking about like this , just because you call it the AYC its doesnt mean its fits for every hp level. exactly same as your transmission.
You need stronger clutch as soon as you raise hp level, and so on...
Also reprogramming the ACD and upgrade the AYC , is crucial for any racers. Reacts faster holds stronger and sooner or later etc. Not for unexperienced driver. Or not recommended

The Ralliart thingis are too much money but there are others out there.
Then you will see the AYC advantage again the best LSD. Because so far we comparing the slower , under rated stock AYC /for everyoneuse/ vs the one of the best track oriented aggressive LSD /for racers only/. And still the AYC is not behind, just think about it for a second....
which is we all can agree on this its unfair.

Rob
ps: the best is about the X AYC - S-AWC set up , it is designed and build for everyone, and because of that it is easy to drive. Fact, gives a false feeling many times you are a better driver then others /that is an achievement or not? /... You will not get that feeling with an aggressive LSD. It would be just too violent for beginners etc.
The AYC is a hell of a thing if you set it up right , no wonder its banned .
Think about it, the ABS are banned too from racing... and those ABS are not a same as you drive daily. SO when you compere ABS to non ABS , most people thinking about street ABS. Hughe mistake . It is a totally different animal. Just as a street AYC vs race AYC.
Like in the F1 they used a brakes for better accelerating, untill they got banned . How is that sound first? Stupid? Yes untill you find out how and why they used it.
I hope this is helped , for a little bit easier understanding.
Last edited by Robevo RS; Dec 24, 2009 at 06:16 AM.
who's got a "race" ayc? they swap out to mechanical diffs, for the track anyway..
when they upgrade the rear diff they swap to mechanical units
there was no question power levels come into play etc.. i dont think there was ever misunderstanding about that...
in any case, yea i'm agreeing with everything you're saying - ayc allowed drivers who weren't as good as top tier drivers to increase their times significantly. ayc is one hell of a thing, esp for non pros (like most of us). Personally, I prefer a mechanical set up just so that my driving style won't adjust to something that is taking care of things for me, even if I am .xx quicker (on roads). Even with the 4wd alone I've been considering changing to an M3 just because there is so much grip on corner exit/accel for 4wd cars. No question AYC is good up to a certain power level for Evos for sure. In any case, I'm already past that power level on my car though
also in terms of fair or unfair, i think is a matter of perspective.. basically, the x already has an upgraded rear diff in the form of the ayc, which a usdm ix simply can not match with it's stock rear diff that barely makes a difference.. to me upgrading makes it "fair". the X has wider wheels and better tires, which is not "fair" from my viewpoint, but it may be "fair" from your viewpoint as the argument as that it what comes with the car right? an upgraded rear diff is a must for any usdm ct9a's, as they were neutered from the factory.. basically without it you're comparing a full fledged car to a neutered one.. that's not fair to me
when they upgrade the rear diff they swap to mechanical units
there was no question power levels come into play etc.. i dont think there was ever misunderstanding about that...
in any case, yea i'm agreeing with everything you're saying - ayc allowed drivers who weren't as good as top tier drivers to increase their times significantly. ayc is one hell of a thing, esp for non pros (like most of us). Personally, I prefer a mechanical set up just so that my driving style won't adjust to something that is taking care of things for me, even if I am .xx quicker (on roads). Even with the 4wd alone I've been considering changing to an M3 just because there is so much grip on corner exit/accel for 4wd cars. No question AYC is good up to a certain power level for Evos for sure. In any case, I'm already past that power level on my car though
also in terms of fair or unfair, i think is a matter of perspective.. basically, the x already has an upgraded rear diff in the form of the ayc, which a usdm ix simply can not match with it's stock rear diff that barely makes a difference.. to me upgrading makes it "fair". the X has wider wheels and better tires, which is not "fair" from my viewpoint, but it may be "fair" from your viewpoint as the argument as that it what comes with the car right? an upgraded rear diff is a must for any usdm ct9a's, as they were neutered from the factory.. basically without it you're comparing a full fledged car to a neutered one.. that's not fair to me
Last edited by kyoo; Dec 24, 2009 at 03:49 PM.
who's got a "race" ayc? they swap out to mechanical diffs, for the track anyway..
when they upgrade the rear diff they swap to mechanical units
there was no question power levels come into play etc.. i dont think there was ever misunderstanding about that...
in any case, yea i'm agreeing with everything you're saying - ayc allowed drivers who weren't as good as top tier drivers to increase their times significantly. ayc is one hell of a thing, esp for non pros (like most of us). Personally, I prefer a mechanical set up just so that my driving style won't adjust to something that is taking care of things for me, even if I am .xx quicker (on roads). Even with the 4wd alone I've been considering changing to an M3 just because there is so much grip on corner exit/accel for 4wd cars. No question AYC is good up to a certain power level for Evos for sure. In any case, I'm already past that power level on my car though
also in terms of fair or unfair, i think is a matter of perspective.. basically, the x already has an upgraded rear diff in the form of the ayc, which a usdm ix simply can not match with it's stock rear diff that barely makes a difference.. to me upgrading makes it "fair". the X has wider wheels and better tires, which is not "fair" from my viewpoint, but it may be "fair" from your viewpoint as the argument as that it what comes with the car right? an upgraded rear diff is a must for any usdm ct9a's, as they were neutered from the factory.. basically without it you're comparing a full fledged car to a neutered one.. that's not fair to me
when they upgrade the rear diff they swap to mechanical units
there was no question power levels come into play etc.. i dont think there was ever misunderstanding about that...
in any case, yea i'm agreeing with everything you're saying - ayc allowed drivers who weren't as good as top tier drivers to increase their times significantly. ayc is one hell of a thing, esp for non pros (like most of us). Personally, I prefer a mechanical set up just so that my driving style won't adjust to something that is taking care of things for me, even if I am .xx quicker (on roads). Even with the 4wd alone I've been considering changing to an M3 just because there is so much grip on corner exit/accel for 4wd cars. No question AYC is good up to a certain power level for Evos for sure. In any case, I'm already past that power level on my car though
also in terms of fair or unfair, i think is a matter of perspective.. basically, the x already has an upgraded rear diff in the form of the ayc, which a usdm ix simply can not match with it's stock rear diff that barely makes a difference.. to me upgrading makes it "fair". the X has wider wheels and better tires, which is not "fair" from my viewpoint, but it may be "fair" from your viewpoint as the argument as that it what comes with the car right? an upgraded rear diff is a must for any usdm ct9a's, as they were neutered from the factory.. basically without it you're comparing a full fledged car to a neutered one.. that's not fair to me
see that is the point, the AYC is so new for the states, most people dont even know its upgradeable...or even you should upgrade, when you over certain power level...
And to "simply"/ since its not a simple swap/ change to LSD, i think is mostly came from t:
" i dont deal with that since i dont know, or i have no experience", point of view. Not because the LSD is better in performance.
Just because very few or nobody has it, that doesn't mean the LSD is better.
Kinda , if we dont have it , probably is not even worth to do it, or even good, attitude. This attitude should be familiar since we all humans.

There tons of car out there with upgraded AYC, where the AYC is not a new thing. And not just racers, in Japan - AU - EU etc. many guys using upgraded AYC's. some is not fully upgraded. Some just let say the pressure switch changed or just get added with an extra pump, and so. Its a same as the transmission upgrades, not everybody have a same level of modifications.
---------------------------------------------------------------------------------------
"also in terms of fair or unfair, i think is a matter of perspective.. basically, the x already has an upgraded rear diff in the form of the ayc, which a usdm ix simply can not match with it's stock rear diff that barely makes a difference.. to me upgrading makes it "fair". the X has wider wheels and better tires, which is not "fair" from my viewpoint, but it may be "fair" from your viewpoint as the argument as that it what comes with the car right? an upgraded rear diff is a must for any usdm ct9a's, as they were neutered from the factory.. basically without it you're comparing a full fledged car to a neutered one.. that's not fair to me"
this section is more like you compare the US X vs US IX not the LSD vs AYC. so i dont comment on it. This whole section is dedicated to do that. Fair or not fair the IX doesnt have AYC / by the way i was moaning about that since 03
, really nobody cared / . In our argument is not relevant. WE were discussing , which is better in terms handling in the car. THe mechanical LSD or the AYC.Also if you compare car with upgraded rear diff , which changes the factory set up, that to a similar rear diff upgraded car , that makes it fair.

ROB
"who's got a "race" ayc? they swap out to mechanical diffs, for the track anyway.. "
see that is the point, the AYC is so new for the states, most people dont even know its upgradeable...or even you should upgrade, when you over certain power level...
And to "simply"/ since its not a simple swap/ change to LSD, i think is mostly came from t:
" i dont deal with that since i dont know, or i have no experience", point of view. Not because the LSD is better in performance.
Just because very few or nobody has it, that doesn't mean the LSD is better.
Kinda , if we dont have it , probably is not even worth to do it, or even good, attitude. This attitude should be familiar since we all humans.
There tons of car out there with upgraded AYC, where the AYC is not a new thing. And not just racers, in Japan - AU - EU etc. many guys using upgraded AYC's. some is not fully upgraded. Some just let say the pressure switch changed or just get added with an extra pump, and so. Its a same as the transmission upgrades, not everybody have a same level of modifications.
---------------------------------------------------------------------------------------
"also in terms of fair or unfair, i think is a matter of perspective.. basically, the x already has an upgraded rear diff in the form of the ayc, which a usdm ix simply can not match with it's stock rear diff that barely makes a difference.. to me upgrading makes it "fair". the X has wider wheels and better tires, which is not "fair" from my viewpoint, but it may be "fair" from your viewpoint as the argument as that it what comes with the car right? an upgraded rear diff is a must for any usdm ct9a's, as they were neutered from the factory.. basically without it you're comparing a full fledged car to a neutered one.. that's not fair to me"
this section is more like you compare the US X vs US IX not the LSD vs AYC. so i dont comment on it. This whole section is dedicated to do that. Fair or not fair the IX doesnt have AYC / by the way i was moaning about that since 03
, really nobody cared / . In our argument is not relevant. WE were discussing , which is better in terms handling in the car. THe mechanical LSD or the AYC.
Also if you compare car with upgraded rear diff , which changes the factory set up, that to a similar rear diff upgraded car , that makes it fair.
ROB
see that is the point, the AYC is so new for the states, most people dont even know its upgradeable...or even you should upgrade, when you over certain power level...
And to "simply"/ since its not a simple swap/ change to LSD, i think is mostly came from t:
" i dont deal with that since i dont know, or i have no experience", point of view. Not because the LSD is better in performance.
Just because very few or nobody has it, that doesn't mean the LSD is better.
Kinda , if we dont have it , probably is not even worth to do it, or even good, attitude. This attitude should be familiar since we all humans.

There tons of car out there with upgraded AYC, where the AYC is not a new thing. And not just racers, in Japan - AU - EU etc. many guys using upgraded AYC's. some is not fully upgraded. Some just let say the pressure switch changed or just get added with an extra pump, and so. Its a same as the transmission upgrades, not everybody have a same level of modifications.
---------------------------------------------------------------------------------------
"also in terms of fair or unfair, i think is a matter of perspective.. basically, the x already has an upgraded rear diff in the form of the ayc, which a usdm ix simply can not match with it's stock rear diff that barely makes a difference.. to me upgrading makes it "fair". the X has wider wheels and better tires, which is not "fair" from my viewpoint, but it may be "fair" from your viewpoint as the argument as that it what comes with the car right? an upgraded rear diff is a must for any usdm ct9a's, as they were neutered from the factory.. basically without it you're comparing a full fledged car to a neutered one.. that's not fair to me"
this section is more like you compare the US X vs US IX not the LSD vs AYC. so i dont comment on it. This whole section is dedicated to do that. Fair or not fair the IX doesnt have AYC / by the way i was moaning about that since 03
, really nobody cared / . In our argument is not relevant. WE were discussing , which is better in terms handling in the car. THe mechanical LSD or the AYC.Also if you compare car with upgraded rear diff , which changes the factory set up, that to a similar rear diff upgraded car , that makes it fair.

ROB
i don't doubt there are mechanical upgrades to bolster the ayc that some people choose, similar to upgrading all the other mechanical parts (tranny etc,) that you have mentioned - i thought you were referring to programming changes to make the ayc perform better, similar to the acd reflashes. as far as i've known, even in the other countries, acd's are flashed and rear diffs are swapped for mechanical ones, with most that i've seen in that regard so far.
lol rob you're the one who brought up fair or unfair!
i don't doubt there are mechanical upgrades to bolster the ayc that some people choose, similar to upgrading all the other mechanical parts (tranny etc,) that you have mentioned - i thought you were referring to programming changes to make the ayc perform better, similar to the acd reflashes. as far as i've known, even in the other countries, acd's are flashed and rear diffs are swapped for mechanical ones, with most that i've seen in that regard so far.
i don't doubt there are mechanical upgrades to bolster the ayc that some people choose, similar to upgrading all the other mechanical parts (tranny etc,) that you have mentioned - i thought you were referring to programming changes to make the ayc perform better, similar to the acd reflashes. as far as i've known, even in the other countries, acd's are flashed and rear diffs are swapped for mechanical ones, with most that i've seen in that regard so far.
The VIII -IX was MUCH stronger as i heard, i never had those. So probably the X can hold much more power , but you still need the tarmac softwere i think there is 3 stage's . Anyway its christmas !!
Merry Christmas !!!
Rob
Usually they do pump upgrade/ sometimes even add one more/ fluid and pressure switch, also they do a ACD software upgrade and so on. Since you are in the EU look up for some respectable teams or companies in EU , they can sure help you on that.
Like Owen performance
http://www.owendevelopments.co.uk/pr...7&t=Mitsubishi
http://www.arnsidemotorsport.co.uk/w.../info.php?p=14
http://www.gearboxman.co.uk/contact.html
http://www.geartronics.co.uk/contact.htm
or something similar to these guys.
They are the guru's not me.
Last edited by Robevo RS; Dec 25, 2009 at 09:34 AM.
Thinking of trading my X for a 06 IX MR
what do you guys think? stay in the X or go for the 9 MR.... could lower my monthly payment...... tuned MR is unˈquestionably a bad a$$ EVO!! some may say better then the X will ever be!
06 MR grey 37k miles on it ..bone stock
my car 08 gsr 24k miles .... some mods......
06 MR grey 37k miles on it ..bone stock
my car 08 gsr 24k miles .... some mods......








I've never seen any mechanical upgrades on sale ... I saw reflash modules for ACD made by ralliart, but they are only for RS models (without AYC).