On request, we can provide you with a brake system that has already had to cope with the harshest requirements of motor racing – a brake system fitted in the cars competing in the Porsche Mobil 1 Supercup: the Porsche Ceramic Composite Brake (PCCB).
The PCCB ceramic brake discs for the 911 have a diameter of 350 mm front and rear – for formidable braking performance. The brake discs are formed from a specially treated carbon-fibre compound that is silicated in a high-vacuum process at approximately 1,700 °C. Not only are the resulting braking discs much harder than standard discs, they are more resistant to heat.
PCCB is characterised by its low thermal expansion, which prevents deformation under heavy braking. Furthermore, the ceramic brake discs are totally resistant to corrosion and offer more favourable noise-damping properties.
The use of six-piston aluminium monobloc brake calipers on the front axle and four-piston units at the rear ensures extremely high brake forces which, crucially, are exceptionally consistant. The pedal response is fast and precise with only moderate input required.
All the necessary ingredients are there for a short braking distance, even in the toughest conditions. Moreover, safety under braking at high speeds is increased thanks to the excellent fade resistance of the PCCB.
The key advantage of PCCB is the extremely low weight of the brake disc, which is approximately 50% lighter than standard discs of similar design and size. As well as enhancing performance and fuel economy, this represents a major reduction in unsprung and rotating masses. The consequence of this is better road holding and increased comfort, particularly on uneven roads, as well as greater agility and improved handling.
Please note that circuit racing, trackday use and other forms of performance driving can significantly reduce the service life of even the most durable brake pads and discs. As with conventional high-performance braking systems, we recommend that all brake components be professionally inspected and replaced where necessary after every track event.