Ice mode solution?

cossie1600

I didn't think as much into it as you did, but I did a track day and autox in the same week. At Lime Rock, I didn't get into ice mode as the XP8s have much less bite. On top of the better pad, I ran mostly in the rain and the pavement at the track is only two years old. Three days later I did an autox in a lot that is over 40 years ago, I was hitting ice mode on and off at the start and end of the run (70 second) with the same XP8. As soon as I switched to the stock pads, problem went away. While there might be other factors contributing to ice mode, I personally believe rough pavement is a big one for me.

ChrisSlicks

It's not the pavement itself but rather the friction co-efficient, obviously (or not) older pavement has a much smaller contact patch with the tire due to more of the binding media getting eaten away, therefor less friction. Basically once the pad to rotor friction far exceeds the tire to pavement friction then there is problems.

For what it is worth I had ice-mode with the stock brakes and stock pads and RE-11 tires during auto-x, but only once the brakes got hot and on longer 90 second courses after about the 4th consecutive run. I'm guess that the bite of the pad just kept increasing due to the increasing heat.

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