phukwatyaherd
05-17-2013, 07:32 AM
I'm piecing together a BBK for my B5 S4 based on the 17Z 6 piston Brembo calipers off the Cayenne and I want to run 2 piece 330x32mm rotors. I've owned the car for 7 years, I autocross it and have done much of the work to it myself, so I'm far from a novice. I would make it simple and buy a full Stoptech, Brembo, etc BBK, but I have a baby due in August, so I have to save $ where possible (anyone else who's married and/or in a similar situation will understand.....[headbang]), and as much as I would love to go up to a larger 350mm+ rotor, I already have 2 sets of 17" race tires (1 set Toyo RA1's and a fresh set of BFG R1's) hence why I'm going this route.
All that being said, I know JHM and Apikol make 2 piece rotors for this very purpose, but I want to do diligence and explore every possible option before I buy. RacingBrake makes some solid looking rotor replacements for Stoptech BBK's (I've heard their calipers are garbage, but rotors seem to have gotten good reviews) and what I was wondering is if anyone knows whether the 332x32mm Stoptech replacement calipers would be compatible for use with the 17Z calipers off the Cayenne? I work in a facet of military aerospace engineering, so while the difference of only 2mm may seem insignificant to a layman, I know just how much 2mm can affect clearance. Does anyone know if the additional 2mm on the Stoptech rotors would create clearance issues and thus render them incompatible with the Cayenne 17Z calipers? Any relevant input is appreciated.
All that being said, I know JHM and Apikol make 2 piece rotors for this very purpose, but I want to do diligence and explore every possible option before I buy. RacingBrake makes some solid looking rotor replacements for Stoptech BBK's (I've heard their calipers are garbage, but rotors seem to have gotten good reviews) and what I was wondering is if anyone knows whether the 332x32mm Stoptech replacement calipers would be compatible for use with the 17Z calipers off the Cayenne? I work in a facet of military aerospace engineering, so while the difference of only 2mm may seem insignificant to a layman, I know just how much 2mm can affect clearance. Does anyone know if the additional 2mm on the Stoptech rotors would create clearance issues and thus render them incompatible with the Cayenne 17Z calipers? Any relevant input is appreciated.