Has Porsche Changed the Puck Design?
 

In the following video posted by another RL'er https://rennlist.com/forums/991/1045...new-video.html - it appears that the caliper pistons, no longer have pucks. Seals are also different. Has this been adopted in the .2's or is this a future developmental change. Here is the picture that is in the video:

https://cimg9.ibsrv.net/gimg/rennlis...f2ba9ccb69.png

The 991.2 GT3's are still using the same calipers as the 991.1s and with them ceramic pucks. However, they have made a minute change to the actual puck design as they did from 997 to 991. In an attempt to help prevent initial cracking/chipping, they sacrificed a larger contact area for more tapered edge with a smaller contact area. As these cars have only been out for a very short time, no 991.2 has had much track use to cause a failure yet. That being said, it is conclusive by the failure rate on the 997s and 991s that the ceramic pucks have a propensity to fail on these cars regardless of the design. We will continue installing our titanium piston puck replacements as a preemptive measure on the 991.2s we have coming through the shop. Time will tell as these cars see more and more track time how the new design fairs.
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