The 911 | The 911
Design icons. Engineering icons.
Yes, it sends shivers down our spine, too.
The engineering of the 911.
Two engines with direct fuel injec-
tion and power outputs of 345 hp
and 385 hp. The optional Porsche
Doppelkupplung (PDK). Porsche
Communication Management with
touchscreen and, on request, a
voice control system. All progres-
sive technologies. 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 911 Carrera and
911 Targa 4 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 combus -
tion
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 15 % com-
pared with the previous model.
Porsche Doppelkupplung (PDK,
p. 55), available as an option, is
based on a development 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, without
any interruption in the flow of
power. In comparison with con-
ventional manual transmission,
PDK achieves a considerably
faster rate of acceleration for the
same rate of fuel consumption.
When compared with the previous
automatic transmission, it pro-
vides 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.
An
additional display on the steering
wheel notifies you when the
SPORT, SPORT PLUS and Launch
Control functions have been
e n a b l e d .
911 Carrera
911 Carrera