Quote:
Originally Posted by TrackClub
Ya, I'd agree that different pad compound technologies may offer different thermal characteristics with some being worse and some being better. But, by and large, most folks that run high mu pads also run ti plates as part of the cooling mods to try slowing down the thermal conductivity. But all things considered, shorter stopping distances mean more heat and at the end the heat will sink into the system eventually, especially if extra supplemental colling improvements are not provided. Of course, as already mentioned, type of venues play a big role here. On venues with long and fast corners, there might be minimal, or no issues, as threshold braking may not be present at all and/or straights long enough to cool things sufficiently for the temps to recover between braking zones. OTOH, venues with short straights and many threshold braking zones will flag this issue in dramatic fashion after only a few laps. So, it certainly "depends" and hence individual experience may vary. I'd say the best test re heat effect is running a venue with short straights and mostly threshold braking zones for 30mins at full pace and see what happens. Bottom line: do whatever makes you fast.
Note that my advice to the latest poster was also based on his pace at Mosport, where he still has a good few seconds to work on. Hence the focus here should be on maximizing momentum and high speed balance vs braking to gain laptime and hi mu pad would actually be a hinderence.
Peace!
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Thanks very much for sharing your experience!
Sounds like some pads transfer more heat through the pad and into the caliper than others. It makes sense this correlates with high-mu pads in general, they must be made of materials with higher thermal conductivity... at least in some brands. Also, since conservation of energy is a thing, that means the rotors are running cooler.
It may an unavoidable trade-off in pad material, but it could also be an intentional design choice. If your rotors were overheating before your calipers then higher pad conductivity would be an advantage. Just guessing, at this point we need a brake pad engineer to chime in.