From Autoweek · Deb Williams · · 1m
NASCAR Allows Brake Repairs After Qualifying
NASCAR permits brake rotor changes post-qualifying after driver complaints.
In brief
NASCAR permits brake rotor changes post-qualifying after driver complaints. NASCAR now allows teams to replace front brake rotors and pads after Saturday's practice and qualifying sessions at Phoenix. Originally reported by Autoweek.
NASCAR Rule Change
NASCAR permits teams to replace front brake rotors and pads after Saturday's practice and qualifying sessions at Phoenix.
Brake Issues in August
Chase Briscoe and Denny Hamlin experienced brake problems during August practice at Iowa.
Brake Failures in September
Ryan Blaney, Chase Elliott, and Chris Buescher had brake rotor explosions at World Wide Technology Raceway in September.
Driver Statements
Buescher noted brake issues develop when brakes become super-hot and then cool during red flags.
Current Rule Book
AP Racing Limited supplies brake rotors and calipers while teams handle brake pads under NASCAR rules.
Brake Cooling Limits
Three brake-cooling assemblies may be used on the front and two on the rear with no liquid or gas cooling permitted.
The key point
NASCAR now allows teams to replace front brake rotors and pads after Saturday's practice and qualifying sessions at Phoenix.
