The 911 | Safety
911 Carrera 4 Cabriolet
Day-to-day practicality.
Straight from the racetrack.
Porsche Ceramic Composite Brake (PCCB).
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 approxi-
mately 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 favour-
able 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 consistent. 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
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.
Porsche Ceramic Composite Brake (PCCB)
