Of course, the Porsche 911's legendary performance is founded as much on
braking ability as acceleration. Continuing this tradition are large
internally-ventilated cross-drilled discs at all four wheels with
race-bred 4-piston fixed monobloc calipers. Each caliper is cast as a
single unit of aluminum, offering lighter weight and increased
stiffness for quicker, more consistent pedal response. And the front calipers
are mounted toward the rear, so air channeled through specially designed
ducts is routed directly to the disc for maximum cooling efficiency.As part of its final road test to ensure the braking system performs to Porsche standards, each New 911 must brake from 252 kph (157 mph) to 100 kph (62 mph) 25 times. Consecutively. Without exhibiting any significant brake fade. In the process, test drivers verify that the latest generation 5.3 ABS indeed offers finer pedal pulsation and better brake feel. The end-product of Porsche's rigorous testing and development process: the New 911's brakes are approximately four times as powerful as the engine.
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