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07-03-2017, 02:46 AM | #57 | |
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Impulse, is a high school physics topic. Brake systems are application of that high school level physics. Somewhere, there is a disconnect for you. Heat is not magically generated instantly, and heat is not transmitted instantly. Think about that. |
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The Following User Says Thank You to CSG Mike For This Useful Post: | strat61caster (07-07-2017) |
07-03-2017, 09:42 AM | #58 | |
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I'm pretty sure friction heat is created instantly. At least I hope my brakes do that. I am equally sure that brakes begin dissipating that heat instantly. That's how they work. The problems presented by track driving are not encountered in street driving which is at least one reason why road &track magazine stopped testing for brake fade a very long time ago. They weren't getting any measurable fade from four wheel disc systems after six consecutive stops from 60 mph. That's just one example. Brake fluid doesn't boil in street driving unless the fluid is water contaminated. Although big improvements have been made in keeping ambient air and brake fluid separate the fluid still needs to be flushed regularly, at least every four years. My preference is every three years. Disc brakes can easily dissipate heat resulting from even spirited street driving. The wheels on a street car just never get very hot, a clear indication that the brakes are working just fine. For brake fluid to boil on a track the wheels would get too hot to touch. |
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07-03-2017, 09:44 AM | #59 | |
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The single advantage of disc brakes when first introduced into racing cars was that the brakes never "failed". They might require higher line pressure as they got hotter but they never disappeared entirely. Drum brakes could fade to zero braking force. This is an important difference. Drum brakes are actually still adequate for rear brakes on street cars, not so front brakes. Four wheel discs are now standardized for economic reasons, production costs are comparable but rear drums are now too expensive to service. |
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07-03-2017, 11:37 AM | #60 | |
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From what I've been reading the Hawk High Performance Street Race pads are a little more street friendly than the Project Mu HC+ 800 ones. Leaning toward the Hawk until I swap out dedicated track pads. For fluid I'm using ATE Typ200. No idea how I decided on it. Sounds like everyone uses Motul RBF600. I might as well join the club too. |
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07-03-2017, 11:45 AM | #61 | |
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Instead of thinking of my drilled ones as money lost I'll reframe it as a successful introduction to doing more maintenance work myself and a massive learning opportunity. Because otherwise, ... |
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07-03-2017, 11:49 AM | #62 | |
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This thread has convinced me to go back to stock rotors. My rotors can look cool when I get a BBK but not until then. |
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07-03-2017, 11:57 AM | #63 | |
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The Following User Says Thank You to OND For This Useful Post: | HappyMonkey (07-07-2017) |
07-03-2017, 01:49 PM | #64 |
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If everyone in your community struggles to put heat into their systems, then it's understandable that the concept of RBF600 and Super ATE are going to be sufficient for your use. It is definitely one of the better ideas to use compare to OEM or standard DOT3 brake fluid for track use though.
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07-03-2017, 01:56 PM | #65 | ||
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Disclaimer: Not all blank discs are created equal. |
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The Following User Says Thank You to CSG David For This Useful Post: | cjd (07-03-2017) |
07-03-2017, 01:59 PM | #66 | |
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A couple of us use RBF600 at our local track without issues, but our local track is pretty "flowy", so it's probably not too hard on the brakes to begin with. |
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07-03-2017, 02:03 PM | #67 | |
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The Following User Says Thank You to CSG David For This Useful Post: | OND (07-03-2017) |
07-03-2017, 02:16 PM | #68 | |
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I visit Harris Hill Raceway, which is a much smaller track and not that hard on consumables. |
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The Following User Says Thank You to OND For This Useful Post: | CSG David (07-03-2017) |
07-03-2017, 02:26 PM | #69 |
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People often forget that all cars are "momentum" cars.
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07-03-2017, 03:32 PM | #70 | |
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Magazines stopped doing it because they were destroying cars given to them for journalistic review, and were pissing off manufacturers. |
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The Following User Says Thank You to CSG Mike For This Useful Post: | wparsons (07-03-2017) |
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brakes, rotors, temperature |
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