Ive heard lots of criticism of these rotors being heavy and not holding up well in track conditions. Comments?
First, let me hit your initial point. I don’t think the stock A8 rotors are bad at all! I’ve been running the same set of A8 rotors, bone stock, since I designed System 1. I’ve run about 15K street miles and three track event at Lime Rock Park. I’ve gotten zero fade, zero warpage, and the surface still looks great. I’ve barely worn them at all. They certainly do hold up on the track. I’d suggest that if there was a problem, it was on a stock A8. See my comments on that above. As for being heavy, no way around that. They are cast iron, one piece, and weigh about 18 pounds each. However, the weight argument is a wash: the stock rotors in your car weigh 14 pounds and the caliper weighs another 14 pounds, whereas the Boxster caliper weighs only *8* pounds! That’s right: eight pounds for the caliper. Review a BIRA member’s comments (and photos) on that very subject. A lot of folks get very concerned with “unsprung weight.” It’s a big consideration in performance design, but it’s really only
Ive heard lots of criticism of these rotors being heavy and not holding up well in track conditions. Comments?