Brake disc thickness tolerance ?
02-14-2019, 09:39 PM
#31
RL Community Team
Rennlist Member
Rennlist Member
These dimples as wear indicators seemed logical to me. However, I called Porsche dealer and a 20 year service veteran said this is not what they are for. That they are just for air and water movement. That being said, I would take with a grain of salt this idea unless some kind of Porsche or rotor manufacturer proof becomes available. I would love for this to be proven, as would make awesome indicators. If anyone can find proof, please post it.
02-14-2019, 09:58 PM
#32
Burning Brakes
I think he misunderstood your question and was referring to the cross-drilled holes, not the little dimples. Those dimples won't do a thing for air or water movement. The cross frilled holes do as well as providing a path for the pad gasses to escape, allowing for better braking instead of the gas being trapped between the pad surface and rotor surface. Gives rotor surface water an egress path as well since that water turns to steam. Increase exposed surface area of the rotor and as Iceter explained about the heat and air transfer between the outside surfaces and inside vanes.
02-14-2019, 10:07 PM
#33
Burning Brakes
Seems they are for gasses. Looks as if drilled/dimpled is probably rare thing though. This is not conclusive proof of the contrary to OP thought, but gives doubt.
https://www.adamsrotors.com/custom-d...ed-rotors.html
https://brakeperformance.com/dimpled-rotors.php
https://tires.tirerack.com/m/tires/Dimpled%20Rotors
https://www.adamsrotors.com/custom-d...ed-rotors.html
https://brakeperformance.com/dimpled-rotors.php
https://tires.tirerack.com/m/tires/Dimpled%20Rotors