Originally Posted by apecush
how are your front caliper seals? A few 30 minute sessions with no ducting and with track pads made short work of them. no fade though...
Use some Ti shields between the backing plate and the piston. It will likely solve most if not all of your problem. I've been using them for 10 years on various cars with great success (reducing heat transfer to the piston, shielding (from a radiation heat transfer standpoint) the dust boots from "seeing" the hot pad backing plate surface, etc. They are especially effective as your pad thickness wears down since the pad material is a highly effective insulator, so as the pad thickness decreases the backing plate temperature (and therefore piston temperature) goes up...a lot by the time the pads are thin.
2011.5 M3 sedan 6MT, Silverstone, slicktop, loaded
2001 M5 LeMans Blue/Silverstone
2006 330i 6MT Red/black, ZSP, Nav, etc
2007 328i wagon Silver/gray