Quote:
Originally Posted by David Inc.
For a car that gets annual brake fluid flushes, do you still think the wet boiling point is more important?
And no it's not broken, but if I can get a bit more safety margin with just a fluid flush I'm happy.
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No
as mentioned when the pads get to 50% retire them from track usage
All brake systems aren't stressed to the same point, there are many variables from the rotor and pad spec to the weight of the vehicle to the speed potential of the vehicle to the track configuration to the length of the sessions to the drivers idiosyncrasies etc.
examples my '76 C3 could go through a set of pads in 1 day at LRP back when I first started doing track days, my 993 RS was fine w/ ATE 200 untill the pads got to 50% and I had to hold on a slight hil in the pits during a black flag at WGI.
911 brakes were mostly fine in the early '70s w/ a skilled driver but became more and more stressed over the years as weigh and power were added to the mix.
Besides boiling fluid there are other indicators of stress such as bluing due to rotor hotspots.
Here's a comparison of some brake stress relations