Quote:
Originally Posted by JARblue
Here is an example I found to explain the idea. The holes circles in purple/pink appear to be chamfered (it is possible that this was not done on purpose in this photo - I'm not sure where it came from). The other holes are not chamfered. If cross drilled rotors are for racing application, they should be chamfered to reduce the likelihood of cracking. Of course, the best solution is to have the holes cast in place when the rotor is cast.
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I do believe the Z1 CD/S rotors are chamfered. But I will go outside tomorrow and double check for you so I'm not giving you bad info.
Quote:
Originally Posted by sparky
From some extensive reading:
Solid blank rotors = best heat dissipation, best for racing.
Slotted rotors = reduced heat dissipation, better bite and performance in the wet.
Drilled = reduced heat dissipation due to less material, faster pad wear, minimal cooling from holes, prone to cracks from excessive heat cycles, worst for racing.
I simplify but it's amazing the conflicting info out there.  |
Quote:
Originally Posted by JARblue
 wet performance is exactly why I went with just slotted rotors... drilled rotors should be used for looks only |
as well. I went with CD/S for aesthetics vs pure racecar. I figure they will suffice until I'm ready for this car to be dedicated race car, then I will look at the DBA5k/4k sets.