Heat pretty much is energy, and energy is pretty much velocity squared. Short tracks don't get enough speed to overheat brakes unless you have a LOT more power than an OB has. My understanding is that some tracks have combination's of longer straights and slow turns such that the brakes heat up at the end of the long section and the slower section doesn't have the air flow to fully cool them before the next section of braking. Worst case the speed is just low enough not to cool well, but high enough that the next turn heats them more, with a long stretch prior to it for the initial heating.
Its been a LONG time since I went cone mowing, not sure if the world is ready for my return.
