Porsche 911 GT3 Brochure page 24

Porsche Ceramic Composite carbon-fibre compound that is
silicated in a high-vacuum process
Brake (PCCB).
at around 1,700 °C. The resulting
Optional for the new 911 GT3 is brake discs are much harder
brake technology that has already and more resistant to heat than
had to withstand the harshest standard discs.
requirements of motorsport: the
Porsche Ceramic Composite PCCB is characterised by its low
Brake (PCCB). thermal expansion which prevents
deformation under heavy braking.
To enhance braking performance, Furthermore, the ceramic brake
the ceramic composite brake discs are totally resistant to
discs in PCCB have a diameter corrosion and offer better noise-
of 380 mm at the front and damping properties.
350 mm at the back. They are
made from a specially treated
The use of six-piston aluminium
monobloc brake calipers at the
front and four-piston units at the
rear ensures extremely high
brake forces which, crucially, are
exceptionally consistent. The pedal
response is fast and precise
with only moderate input required.
All the prerequisites are there for
a short braking distance, even in
the toughest conditions. Moreover,
safety when braking from high
speeds is increased thanks to
PCCB's excellent fade resistance.
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The key advantage of PCCB is the The result: better road-holding
extremely low weight of the brake and increased comfort, especially
discs which are about 50 % lighter on uneven roads, as well as
than standard discs of similar greater agility and even better
design and size. In addition, the handling.
monobloc calipers for the new
911 GT3 on the front and rear axle Please note that circuit racing
are made from aluminium, saving or other forms of performance
around 4.8 kg per vehicle com- driving can significantly reduce
pared to standard calipers. These the service life of even the most
factors not only have an impact durable brake pads and discs.
on performance and fuel consump- As with conventional high-
tion, but also reduce unsprung and performance braking systems,
rotating masses. we recommend that all brake
components be professionally
inspected and replaced where
necessary after every track event.
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