Porsche Cayman User Handbook Manual page 30

Porsche Ceramic Composite lighter than metal, but also
Brake (PCCB). harder and more resistant to
high temperatures.
The Cayman S is also available
with a carbon fibre-reinforced Within each disc is a system of
ceramic brake system: the internal channels which provide
Porsche Ceramic Composite highly efficient heat dispersal,
Brake (PCCB). The PCCB disc is particularly during heavy use. An
made from a specially treated area of ongoing development,
carbon-fibre compound that is we've now doubled the number
silicated in a high-vacuum process of channels and optimised the
at 1,700 ºC. The result is a airflow characteristics. With twice
product that is not only much the number of internal walls, the
new PCCB disc has even greater
structural stability. The ring of
vent openings around the outer
rim is one of the key distinguishing
features of this technology.
Matched to the disc is a special
brake-pad compound offering
rapid deceleration and consistent
friction properties. The front pads
are mounted in six-piston monobloc
aluminium calipers, while those at
the rear come in four-piston units.
· 62 ·
The overall response is fast and totally resistant to corrosion and
precise, with only moderate pedal offers excellent acoustic damping
force required. The front disc properties. Braking distances
diameter – 350 mm – is larger are significantly reduced in even
than that of the standard metal the toughest road and track
disc. The longer radius brings conditions. Inherent fade resistance
increased leverage and therefore ensures optimum balance when
additional performance. slowing the car from high speed.
Even at high temperatures, the
thermal resistance of the ceramic
disc ensures excellent dimensional
stability. The ceramic material is
The new Cayman and the Cayman S |
The key advantage of PCCB is
its ultra-lightweight construction.
Compared with conventional metal
discs, it offers a remarkable
weight saving of approximately
50 %.
As well as enhancing performance
and fuel economy, this represents
an enormous reduction in both
unsprung and rotating mass –
important factors when it comes
to handling, agility and comfort.
To find out more, see the latest
PCCB brochure.
Cayman S
Porsche Ceramic Composite Brake (PCCB)
· 63 ·
Safety