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Originally Posted by BAN SUVS
Both of those documents refer to the "yaw-rate and lateral G sensor." I'm still not convinced it's not just the lateral G sensor with a new name.
Also, VDC is apparently just traction control, 99% of which ysstems result in slower lap times. It does seem to counteract both over steer and understeer, so maybe it's better than most. I can say for certain though that it's not an equivalent to the Evo's AYC.
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If you look at the Service manual for '04 they only mention a Lateral-G sensor not a Later G & Yaw Rate Sensor like the '05 manuals. I also have a .pdf of the VDC training booklet which describes separately what the Lateral G and Yaw Sensors do. Granted it's not AYC but it's not far off; AYC controls the torque to each of the rear wheels allowing one side to get more torque than the other...On the Subaru's the Yaw sensor allows the car to better recognize understeer/ oversteer and instead of controlling the torque bias between the rear wheels the Subaru system applies small amount of brake to any one of the 4 wheels that it feels will help reduce the stray from the intended path of travel...ie if understeering it will apply brake to both of the inside wheels. And who convinced you that 99% of traction control systems make for slower lap times? It's well documented and proven (even in Formula 1) that traction control systems make for faster lap times; I think you have confused the dislike of traction control systems by some race drivers as meaning they are slower...they are not. There's even a video put out by the Japanese where they took a Ferrari 360, Porsche twin-turbo and Sky-line GT-R and put traction control to the test. They all lapped faster with traction control turned on despite the drivers not liking traction control. Formula 1 uses electronic traction control and if anybody knows how to get faster times it's F1 teams, if TC was slower it wouldn't be used.