04-07-2015, 03:33 PM
Catch me in person when you come to Summit and we can go over much more of it. It would take me hours to put together even a simplistic form.
Tires = available grip. If you are locking up tires at all, no brake upgrade will help braking distance.
Let's say you have put the nicest tires you can find on. Now what? Now that you have enough grip to use brakes, we have to increase their work done. We increase work by increasing leverage (larger rotor), or by increasing the coefficient of friction of pad. Your example? Increasing the leverage does 6-13% more "work" done, but that is still minimized by you now have more weight to slow down with a bigger rotor...
Still, 6-10% seems pretty decent until you realize the coefficient of friction in pads can range from .3 to .7. Meaning increasing brake effectiveness is far easier and cheaper with a simple pad change then larger rotors.
Edit: Great simple whitepaper by Stoptech
<!-- m --><a class="postlink" href="http://stoptech.com/technical-support/technical-white-papers/white-paper---brake-bias-and-performance-why-brake-balance-matters">http://stoptech.com/technical-support/t ... ce-matters</a><!-- m -->
Tires = available grip. If you are locking up tires at all, no brake upgrade will help braking distance.
Let's say you have put the nicest tires you can find on. Now what? Now that you have enough grip to use brakes, we have to increase their work done. We increase work by increasing leverage (larger rotor), or by increasing the coefficient of friction of pad. Your example? Increasing the leverage does 6-13% more "work" done, but that is still minimized by you now have more weight to slow down with a bigger rotor...
Still, 6-10% seems pretty decent until you realize the coefficient of friction in pads can range from .3 to .7. Meaning increasing brake effectiveness is far easier and cheaper with a simple pad change then larger rotors.
Edit: Great simple whitepaper by Stoptech
<!-- m --><a class="postlink" href="http://stoptech.com/technical-support/technical-white-papers/white-paper---brake-bias-and-performance-why-brake-balance-matters">http://stoptech.com/technical-support/t ... ce-matters</a><!-- m -->
2020 Ford Raptor
2009 Z06
1986.5 Porsche 928S
2009 Z06
1986.5 Porsche 928S