Join Date: Feb 2001
Location: Ft. Walton Beach, FL
I loved your video and I can see why the brakes got so hot. Good driving!
You listed three issues and they are all obviously due to heat. You can't expect dust boots to last as they were never designed to last in this kind of environment especially in a fast car. I had a Z06 and burned them off in no time. That is why race cars don't have them. The heat cracks are from extreme heating and cooling. That doesn't necessarily mean the rotors are done though. I have used carbotechs but never the Xp16, but it is known that the higher the number the faster they wear. Heat has a hand in that too.
Since your ABS system will assist with adjusting rear bias, I wouldn't add overly aggressive pads to the rear as it might cause the fronts to work harder if the rear brakes can't get up to optimum temperature. But it can have the same effects if you do the opposite as well. Pick a rear brake pad that will work in the intended heat range you want. I'd try a minimum of an XP10. It might be worth running a lower pad up front as the XP16 is considered an extreme race pad. Since you are on street tires, I don't see why you couldn't run an Xp10 or Xp12 up front. They will definitely last longer and still offer good performance that won't fade.
You mentioned reaching 140mph in both cars, but the 2011 has to accelerate harder and also slow down more all while carrying an extra 500lbs. While you would think street tires are better than race tires in keeping brakes cooler, it will actually work in the opposite manner. Being able to take a corner 10+ mph faster means you don't have to slow down as much and the brakes don't have to work as hard. And even though you are exiting faster, the top speed vs corner entry speed difference should be less. This is assuming you don't add any power.
I haven't looked at the new fords, but I know gm does a good job of putting brake ducts on their vehicles. It is definitely worth copying their design at a minimum as an attempt to cool the brakes down as well. These are all simple steps to take and then you can adjust your plan after some more reevaluation.
2012 Race Red GT
1998 Black GT (Open Track car) - TF 44cc Heads/Aviator SB, HP cams, BBK shorties, Delta Force tuning, MM Panhard LCA FCA Full subs CC plates coilovers, Koni Yellows, drop spindles, Brembo/Cobra brakes, 3.73 gears, truetrac diff
Track Videos - http://www.youtube.com/cxavier68