Quote:
Originally Posted by Cunningr
Yeah but the ambient has to have some affect maybe not enough to affect breaking but a higher ambient temp has to cause brakes to heat up faster and maintain heat longer after you park.
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Quote:
Originally Posted by edc
As a further example DS2500 pads have an operating range of 20 to 500 degrees C. Whether it is 20, 30 or even 50 degrees is going to make no difference.
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I think that both are correct.
Technically, a higher ambient temp will cause the brakes to reach a (slightly) higher max brake temp and it will happen (slightly) sooner as compared to a lower ambient temp. The converse is true for cooling down.
But in reality, it makes little to no difference in performance whether the brakes reach their maximum temp slightly sooner or if the max temp is slightly higher. Why? Because you are a smart fellow and you chose pads whose max temp rating was well above the max temps that your brakes experience (even on a hot day) so there is never anything to worry about.
Of course, there is the theoretical case where you experience no brake fade on a cool day, but do experience fade on a hot day. Somehow you chose a pad whose max temp landed right in the small range where the max temp varies based on ambient temps. I would guess that this is pretty rare.