Porsche 911 - Manual (Page 6)

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Design icons. Engineering icons.
Yes, it sends shivers down our spine, too.
The engineering of the new 911.
A new 911. Two new engines with
direct fuel injection and power
outputs of 345 hp and 385 hp.
The new, optional Porsche
Doppelkupplung (PDK).The
latest Porsche Communication
Management with touchscreen
and, on request, a voice control
system. All progressive tech-
nologies. It would be so easy just
to sum up the meaning of inner
strength. We, however, prefer to
get to the root of it.
All of the new 911 models have
direct fuel injection (DFI, p. 40).
So how does this compare
with standard fuel injection?
The fuel/air mixture is prepared
entirely in the combustion
chamber after having been
metered and injected directly,
with millisecond precision.
From a technical perspective, this
means an accurate fuel/air
mixture and therefore optimum
combustion. For the driver, it
means a distinct rise in power and
torque, and a distinct fall in fuel
consumption and emissions. It
has been possible to reduce CO
2
emissions by up to 17%, depending
on the model.
The new Porsche Doppelkupplung
(PDK, p. 55), available as an
option, is based on a develop-
ment that helped Porsche racing
cars in the 1980s to cause a
sensation on racetracks around
the world.
PDK, with both a manual gearshift
and an automatic mode, has
seven gears at its disposal. It is
like having two gearboxes in one
and, as the name suggests, two
clutches. Whenever a particular
gear is engaged, the next gear
is always preselected. Gearshifts
therefore take place within
hundredths of a second, and
without any interruption to the
flow of power. In comparison
with conventional manual
transmission, PDK achieves
a considerably faster rate of
acceleration for the same
rate of fuel consumption. When
compared with automatic trans-
mission, it provides significantly
more driving pleasure thanks
to improved responsiveness and
thus greater agility – with the
same degree of comfort at a
reduced rate of fuel consumption.
In combination with the Sport
Chrono Package Plus (p. 74), PDK
has a choice of two additional
functions: ‘Launch Control’ for
optimum acceleration from a
standing start, and a ‘motorsport-
derived gearshift strategy’
bringing gearshift characteristics
straight from the racetrack.
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The new 911 | The new 911
911 Carrera
911 Carrera