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Open Track Racing
Venom F14 '03 Cobra Brake Kit - Installation
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<blockquote data-quote="BlackBolt9" data-source="post: 9840238" data-attributes="member: 36489"><p>Jimmy,</p><p>I looked at your chart and am not sure I really have faith in it. I don’t know how they did their testing but I can tell you that our 3300# (no fuel, no driver) S197 Continental Challenge cars that run 14” front rotors and even better Brembo calipers, still have close to 1000deg rotors temps in 30 minute practices. It’s usually either the Brembo or PFC field engineers taking the temps, so I have to believe they are accurate.</p><p></p><p>Even though the rotor is larger (meaning it can hold a larger amount of heat) the actual temperature of equilibrium should still be the same since the metal is still the same (or similar) and has the same rate of heat transfer. Also, you still have the same weight car, you are trying to slow down the same amount in the same distance. This means you are shedding the same amount of kinetic energy, and that pesky law of conservation of energy then states you must change that same amount of energy into heat (in this case).</p><p></p><p>I can only assume they made this chart by going out on the first brake set-up for a couple laps, and took temps, then did a couple laps on the next set, and so on, WITHOUT letting the systems get to their equilibrium temperature.</p><p></p><p>And FWIW, I don’t think you really want your rotors to run 500deg because most (if not all) race pads are designed to work properly at the higher temperatures that are produced on a race track but that is a question for your pad supplier not someone with as little knowledge as I about that topic.</p><p></p><p>BTW, this is all just my hypothesis, there are many people out there with more knowledge and a better understanding of this, so if you can find a better explanation that either proves or disproves what I’ve said, I’m all ears to learning more.</p><p></p><p>As far as wear goes, it is what it is if you wanna go fast <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> No one ever said racing was cheap:-D</p></blockquote><p></p>
[QUOTE="BlackBolt9, post: 9840238, member: 36489"] Jimmy, I looked at your chart and am not sure I really have faith in it. I don’t know how they did their testing but I can tell you that our 3300# (no fuel, no driver) S197 Continental Challenge cars that run 14” front rotors and even better Brembo calipers, still have close to 1000deg rotors temps in 30 minute practices. It’s usually either the Brembo or PFC field engineers taking the temps, so I have to believe they are accurate. Even though the rotor is larger (meaning it can hold a larger amount of heat) the actual temperature of equilibrium should still be the same since the metal is still the same (or similar) and has the same rate of heat transfer. Also, you still have the same weight car, you are trying to slow down the same amount in the same distance. This means you are shedding the same amount of kinetic energy, and that pesky law of conservation of energy then states you must change that same amount of energy into heat (in this case). I can only assume they made this chart by going out on the first brake set-up for a couple laps, and took temps, then did a couple laps on the next set, and so on, WITHOUT letting the systems get to their equilibrium temperature. And FWIW, I don’t think you really want your rotors to run 500deg because most (if not all) race pads are designed to work properly at the higher temperatures that are produced on a race track but that is a question for your pad supplier not someone with as little knowledge as I about that topic. BTW, this is all just my hypothesis, there are many people out there with more knowledge and a better understanding of this, so if you can find a better explanation that either proves or disproves what I’ve said, I’m all ears to learning more. As far as wear goes, it is what it is if you wanna go fast :) No one ever said racing was cheap:-D [/QUOTE]
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Venom F14 '03 Cobra Brake Kit - Installation
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