[MEXSTIMPREZA]

I agree with you guys (specially stretch and tshrey), but I think that both this issues should be attacked at the same time to get a better result (steering+alignment).
The way these cars are set up (understeer) is obviously for law suit issues (it is always easier to control a car that is understeering -for stupid people who use the brake instead of the gas pedal to get out of a situation-). The good news is that with a little knowledge and not that much money, you can correct this and have a very neutral car with the best awd on the planet imo.
Now back to the original question, VDC systems are not as intelligent as we think they are, as you guys stated, they are "reactive", the only thing so far that we can do with them, is limit the amount of "reactivness" they have. So, it is my uderstanding, that if you have a stock STI vs a more nuetral STI, and in a "perfect world" submit them to the exact same physical forces (every component), the "reaction" of the system will be exactly the same.
I talked to the Subaru tech guy a few weeks ago (I was having the same issues as you guys about the 3 seconds for the vdc button) and he and I talked about this for like half an hour, in the end he told me a little secret, he told me that the 3 seconds is only a limit to the amount of response of the system, and that the new vdc also has a different setting from the factory, a third one, but that he was not sure how to turn activate it.
Well, there it is .

[RallyMe]

Wow someone is definitely an engineer! With all wheel drive I don't find a traction control system very useful, especially when I've grown up racing awd cars that don't have such a system.

[Rootus]

Originally Posted by stretch

If my understanding of the Evo is correct, the vehicle does not have a center differential at all.

I believe that may have been sorta true at some point in the past. But it definitely has one now (and I think since VII, IIRC). It works much like the center diff in an STI -- uses an "electronically controlled hydraulic multi-plate clutch" to "regulate slippage in the 50:50 torque-split diff from free to lock-up according to speed and load."

One consequence of the transverse engine mounting in the Evo is that the center differential is physically located farther towards the front of the car than the front differential .

I tend to agree that Subaru has a better design of AWD (primarily because it's purpose built, rather than a hack), but there's no doubt that AYC gives the Evo a nice edge. A highly skilled race car driver may not need it, but for the rest of us it makes us look like a much better driver than we really are . Any AWD car tends to do that of course, but AYC is damn near foolproof.

[ploney]

Originally Posted by MEXSTIMPREZA

I agree with you guys (specially stretch and tshrey), but I think that both this issues should be attacked at the same time to get a better result (steering+alignment).
The way these cars are set up (understeer) is obviously for law suit issues (it is always easier to control a car that is understeering -for stupid people who use the brake instead of the gas pedal to get out of a situation-). The good news is that with a little knowledge and not that much money, you can correct this and have a very neutral car with the best awd on the planet imo.
Now back to the original question, VDC systems are not as intelligent as we think they are, as you guys stated, they are "reactive", the only thing so far that we can do with them, is limit the amount of "reactivness" they have. So, it is my uderstanding, that if you have a stock STI vs a more nuetral STI, and in a "perfect world" submit them to the exact same physical forces (every component), the "reaction" of the system will be exactly the same.
I talked to the Subaru tech guy a few weeks ago (I was having the same issues as you guys about the 3 seconds for the vdc button) and he and I talked about this for like half an hour, in the end he told me a little secret, he told me that the 3 seconds is only a limit to the amount of response of the system, and that the new vdc also has a different setting from the factory, a third one, but that he was not sure how to turn activate it.
Well, there it is .

Quite easy to activate. Push once, turns yellow, push and hold, turns green. This mode only individual wheel brakes to correct the car, no power limitation.

I'll give you the obligatory