Smart quod bastardus
Join Date: Oct 2002
Location: Baltimore, MD, USA
as far as I know there is no difference in stopping ability between them as the calipers are the same and the rotors are the same dimensionally.
If you look at the floating rotor design, from a pure racing/standpoint they are better because of the fact that they float and are independent of the hub deflections and thermal stresses from a fixed rotor. But are they worth the expense is a better question.
The change should invovle a later style hub which would allow using the later rotors, but what is the break even point to do this as a hub is not cheap either.
There has to be a way of using a 993 or other model rotor and machine it to fit the floating "hat"......at least I hope so, but noone has chimed in yet to let us know if this is true.
1979 930 Turbo....3.4L, 7.5to1 comp, SC cams, B&B intercooler, Snow Perf water/meth injection, Rarlyl8 headers, Garret GTX turbo, 36mm ported intakes, Innovate Auxbox/LM-1, custom Manually Adjustable wastegate housing (0.8-1.1bar),--running 0.7bar max
---"When you're racing it's life! Anything else either before or after, is just waiting"