2014 PORSCHE 911 transmission

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S
trength
| The 911 Carrera
Meetings, conferences, business lunches.
How about some leisure in between?

The 911 Carrera.
In the 21st century, we find ourselves
caught bet ween all kinds of opposites on
a daily basis: bet ween the demands of
our work life and our private life, between
the real world and virtual realit y. How can
they all be reconciled? With a strong iden -
tit y and a sports car that has incorporated
many contradictory notions since 1963.
Sportiness and everyday practicality are
a prime example. The new 911 Carrera is
equipped as standard with direct fuel
injection
(DFI) and VarioCam Plus for high
power, high torque, efficient combustion
and, as a result, comparatively low fuel
consumption. Tradition and innovation blend seamlessly
together in the 3.4-litre, six-cylinder
horizontally opposed engine. The figures
speak for themselves. The maximum
power of 257 kW (350 hp) is available at
7,400 rpm and the maximum torque of
390 Nm is generated at 5,600 rpm. Even
more impressively, the car accelerates
from 0 to 100 km/ h in 4.8 seconds and
reaches a top speed of 289 km/ h.
The 911 Carrera generates powerful
forces, which are transmit ted precisely
and directly to the wheels by the 7-speed
manual gearbox. As with the optional PDK,
gears 1 to 6 have a sports ratio, while 7th gear has a long ratio for reduced fuel
consumption. The SPORT but ton, which
is fit ted as standard, makes it possible to
select an even more responsive engine
and transmission setup.
In terms of form and function, the single
tailpipes are especially imposing and
emit a sound that is t ypically Porsche.
The 19-inch Carrera wheels are fit ted as
standard and offer excellent driving
stability and performance.
Sports car technology as standard, in
the form of black four-piston aluminium
monobloc fixed calipers, Porsche
Stabilit y Management (PSM) and Bi-Xenon
headlights, shows that sportiness and
safet y are not mutually exclusive.
Sport, moderation, everyday practicality
and st yle. Four key themes, one unifying
concept: the 911 Carrera.
For fuel consumption, CO
2 emissions and efficiency class, please refer to pages 141/143.

2627
When you know your strengths,
it’s easy to acquire new ones.

The 911 Carrera 4.
One thing is for certain. When it comes to
finding your own strengths, it always
helps to know who you are and where you
come from. Where the 911 is concerned,
we call this Porsche Identit y.
The immense power that is embodied
in this strong identit y is immediately
apparent in the all-wheel-drive
911 Carrera 4. Its Porsche Traction
Management (PTM) converts power
directly into motion. Not in a heav y-
handed way, but intelligently. Among
other variables, sensors monitor the
rotational speeds of all four wheels,
the vehicle’s lateral and longitudinal acceleration and the steering angle. In
this way, the active all-wheel drive can
continually respond to different driving
situations and precisely distribute drive
forces bet ween the front and rear axles.
Tuned to provide poised and balanced
handling during performance driving,
PTM quickly and clearly demonstrates,
especially in the wet and snow, what

we at Porsche understand by traction.
Expressed in simple terms, the
911 Carrera 4 is self-assured. An
assuredness that has been assisted by
engineering and aesthetic details
such as the wider body – the rear wings are 44 mm wider than those of the

911 Carrera – the 295 mm wide rear
tyres, the special air intakes, the
illuminated rear light strip with taillights
and parking light function, and distinctive
side skirts.
One of its inherent strengths is, of course,
its engine: the 3.4-litre, six-cylinder
horizontally opposed power unit delivers
257 kW (350 hp) at 7,400 rpm and
accelerates the 911 Carrera 4 from

0 to 100 km/ h in just 4.9 seconds. Top
speed is 285 km/ h.

Let ’s now bring the power of identit y
to bear on the road. With the aid of the
7-speed manual transmission or the
optional PDK.
Both feature sports ratios
for gears 1 to 6 and a long-ratio 7th
gear for fuel efficiency.
The 911 has many strengths. The
911 Carrera 4, with its superlative
traction, dynamic performance and
safet y, has acquired even more.

Why not take your seat behind the wheel
and make these strengths your own?
For fuel consumption, CO
2 emissions and efficiency class, please refer to pages 141/143.
S trength | The 911 Carrera 4

4647
T
emperament
| Transmission
The long and winding road is where you’d like to be.
Sometimes, it pays to take the direct route.
Transmission.
The 7-speed manual gearbox.
Pure, direct, precise. Short shift move -
ments and an optimum transition from
one gear to the next. That ’s exactly what
you would expect of a Porsche manual
gearbox.
What you might not have expected is a
7 -speed manual gearbox that combines
a high level of sport y performance with
an equally high level of efficiency and
offers extra comfort for longer journeys. It’s an exceptional innovation, and not
only in the sports car segment.
The design of this manual gearbox is
based in principle on that of Porsche
Doppelkupplung (PDK). Gears 1 to 6 have
a sports ratio and top speed is reached
in 6th gear. The additional 7th gear,
however, has a long ratio, which reduces
torque and helps to reduce fuel consump
-
tion. Lower engine revs at fast driving
speeds also ensure a high level of comfort
on long stretches of road. In addition,
a gear indicator in the rev counter reminds
you which gear has been selected. The
upshift indicator in the instrument cluster
helps you actively conserve fuel.
Thanks to the elevated centre console,
the gear lever is within easy reach –
ideal for sport y gear changes.
Whether you select a sport y or comfortable
gear, the way you reach your destination
is in your own hands.
For fuel consumption, CO
2 emissions and efficiency class, please refer to pages 141/143.

462135
7R
4849
Porsche Doppelkupplung (PDK).
Available as an option for all
911
Carrera models is 7-speed PDK,
featuring manual and automatic modes.
It facilitates extremely fast gear changes
with no interruption in the flow of power,
whilst at the same time improving
acceleration and fuel efficiency. The first six gears are particularly
sport y, with top speed being reached

in 6th gear. 7th gear has a long
ratio and reduces the revs – for lower
consumption.
PDK is essentially t wo gearboxes in one
and thus requires t wo clutches. This
double-clutch arrangement provides an
Porsche Doppelkupplung (PDK)
alternating, non-positive connection
bet ween the t wo half gearboxes and the
engine by means of t wo separate input
shafts.
The flow of power from the engine is
transmit ted through one half gearbox and
one clutch at a time, while the next gear
is preselected in the second half gearbox. During a gear change, therefore, one
clutch simply opens and the other closes
at the same time, enabling gear changes
to take place within milliseconds.
The effect is instant. Driving feels even
sportier and more dynamic, and agility

is increased. Depending on the gearshift
programme (SPORT button activated
T emperament | Transmission
or deactivated), the gear change is opti -
mised for comfort or for sport y driving.
With the optional Sport Chrono Package,
PDK is enhanced by the ‘Launch Control’
and ‘motorsport-derived gearshift
strategy’ functions (pages 65– 67).
Coasting.
The ‘coasting’ function available with
Porsche Doppelkupplung (PDK) enables
you to save even more fuel where the
situation allows. The engine is decoupled
from the transmission to prevent
deceleration caused by engine braking.
In this way, optimum use is made of the
vehicle’s momentum, allowing it to coast
for longer distances.
For example, you may want to slow down
from 100 to 80 km/ h in anticipation
of the change of speed limit ahead. As
soon as you release the accelerator
pedal, PDK deselects the current gear automatically and you begin to coast
in neutral until you have reached your
desired speed. The moment you engage
the accelerator or brake pedal, PDK
selects the appropriate gear smoothly
and seamlessly within a fraction of a
second.
In short, driving in coasting mode makes
a real impact on fuel consumption without
any need for compromise on comfort or
sporty performance.
Another way to reduce fuel consumption is
to utilise the coasting function on downhill
gradients that are gentle enough for you
to maintain a constant speed. Efficient on
long journeys, such as on the motorway,
PDK remains ready to respond as swiftly
and precisely as you would expect.
For fuel consumption, CO
2 emissions and efficiency class, please refer to pages 141/143.

5051
It is possible to have a lot of power yet not
be able to use it. Only by using your power
intelligently will you truly progress – and
with consummate ease.
Porsche Traction
Management (PTM) is
standard on all 911 Carrera all-wheel-drive
models. It is an active all-wheel- drive
system with an electronically variable
map-controlled multi-plate clutch,
automatic brake differential (ABD) and
anti-slip regulation (ASR). Drive power is distributed bet ween the
permanently driven rear axle and the
front axle by means of the electronically
variable multi
-plate clutch.
The status of the vehicle is continuously
monitored so that it is possible to respond
to different driving situations. Sensors
are used to collect a range of data, includ -
ing the rotational speed of all four wheels,
the lateral and longitudinal acceleration
of the car and the current steering angle. If, for example, the rear wheels begin
to lose traction under acceleration, a
greater proportion of the drive power
is automatically transmit ted to the front
axle by a more positive engagement of
the multi-
plate clutch. In addition, ASR
prevents wheel spin by adapting the
engine’s power output. During cornering,
the optimal level of drive power is
dis
tributed to the front wheels to ensure
excellent lateral stability. In conjunction with Porsche Stability
Management (PSM), PTM helps to ensure
the perfect distribution of drive power for
optimum traction in most road scenarios,
whether on long straights, through tight
corners, or on surfaces with different
friction coefficients.
Far better than a power struggle
is power interplay.

Porsche Traction Management (PTM).
T
emperament | Transmission

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T
emperament
| Chassis and body
SPORT button.
Fit ted as standard, the SPORT but ton
enables you to select a suspension setup
where the emphasis is on either comfort
or sport y performance. At the push of a
button, the electronic engine management
system switches the engine mapping to
offer an even sharper response and
engine dynamics that are more direct.
In vehicles with Porsche Doppelkupplung
(PDK), upshifts take place at higher
engine speeds and downshifts happen
sooner. In addition, coasting mode

and the auto start/stop function are
automatically deactivated. If fitted, the
optional sports exhaust system is also
activated automatically.
Sport Chrono Package.
The Sport Chrono Package including
dynamic engine mounts is available
as an option. This integrated system
provides simultaneous enhancement for
the chassis, engine and transmission.
Included in the package are a performance
display, a digital and an analogue stop -
watch and the SPORT PLUS but ton. An
additional display in the steering wheel
and instrument cluster indicates whether
the SPORT but tons and Launch Control
have been activated.
Every day can be sports day.

Additional performance enhancement systems.Electromechanical power steering.
Another possible definition of efficiency
is a system that works only when it is
needed, and then does so in a particularly
effective way.
This was the guiding principle for our
engineers in the development of the electromechanical power steering. Statis-

tics show that a car drives in a straight
line 90 % of the time. Unlike conventional
hydraulic pumps, the electric motor uses
energy only when the steering wheel is
actually turned. The absence of hydraulic
fluid also makes the system more
bene ficial to the environment.
As far as the other 10 % is concerned, we’re
optimally prepared as the steering system
is t ypically Porsche. It features a variable
steering ratio and responds sensitively
and directly at the same time as providing
customary agilit y, a high level of comfort
and precisely selected feedback from the
road. Our definition of efficient.
Power steering Plus.
Power steering Plus, the comfort-enhancing
power steering system, is available as an
option for the 911 Carrera models. At high
speeds, the steering is as firm as possible,
ensuring maximum precision whilst steer-
ing comfort remains as high. At low speeds,
the steering ratio of Power steering Plus
adjusts for much easier manoeuvring and
parking.

7879
Composure
| Safet y
Electric parking brake.
The electric parking brake, which you
can activate and deactivate manually,
releases automatically as you pull away.

With the hill-
hold function, you can
pull away without ever rolling back.
The system automatically detects when
the vehicle has come to a halt on an
uphill gradient requiring intervention.
PSM then maintains the brake pressure
at all four wheels to prevent the vehicle
from moving in the opposite direction.
Airbags.
The 911 Carrera models offer advanced
airbag technology in the form of full-size
driver and front passenger airbags, which
are inflated in t wo stages depending
on the severit y and t ype of accident (e.g.
frontal or offset frontal). In less serious
accidents, the airbags are only partially
inflated, thereby minimising discomfort
to the occupants. In addition to the central airbag control
unit on the transmission tunnel, a pair of
impact sensors are located near the
headlights. This allows a crash to be
detected and evaluated not just sooner,
but with even greater accuracy.
Porsche Side Impact Protection
System (POSIP).
Coupé or Cabriolet, the 911 models

are equipped as standard with the
Porsche Side Impact Protection System
(POSIP). It comprises side impact
protection elements in the doors and t wo airbags on each side. An integral
thorax airbag is located in each seat side
bolster, while the door panels each
contain an upwards-inflating head airbag.
Each thorax airbag has a volume of
10 litres and each head airbag 15 litres,
ensuring excellent protection in the event
of a side impact.
Cabriolet roll-over protection concept.
Despite their low weight, the 911 Carrera

Cabriolet models have exemplary
torsional rigidit y and flexural strength.
Body flexing is minimal even on irregular
road surfaces.
Increased protection is provided by
an automatically deploying roll-over
protection system if the car were to
overturn. Two spring-loaded roll-over
bars are neatly incorporated behind
the rear seats. The roll- over sensor
continuously monitors the car’s pitch
and roll, contact with the road, as
well as lateral and longitudinal forces.
If the car were to overturn, the roll- over
bars would be deployed instantly.

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Responsibility
|
Motorsport
It’s hard to say what has been our most emotional moment on the racetrack.
We have more than 60 years’ worth of them.

Porsche Motorsport.
To be able to call upon more than 60
years of experience as you bat tle for
every hundredth of a second out on the
track – that ’s what Porsche Motorsport is
all about. Our driving force is our teams
– all those people, from driver to
engineer, who work tirelessly on major
racetracks throughout the world to take
us forward. They have been realising and
living one shared dream for generations:
Ferry Porsche’s dream of a car that
could be both victorious on the track and
practical on the road. And from that
dream, more than 30,000 victories have
ensued to date. Victories achieved, for example, with
the Porsche 956 – one of the most
successful race cars of all time. And

with those that continue to show that
same potential, such as the 911 RSR

and the 911 GT3 Cup.
Two race cars that have proven a
success in circuit and endurance events.
As successful as the entire brand,
Porsche Motorsport has so far built more
than 3,000 race cars, over 1,000 of
which are still in use today. They appear
at the lowest amateur levels and line up
at the very pinnacle of the sport, competing in US GT races and in 20 one-
make championships, including the
Porsche Carrera Cup Germany and the
Porsche Mobil 1 Supercup. New goals
are forever being set, not least for the
reappearance among the international
motorsport elite: in the FIA World
Endurance Championship and its
highpoint, the 24 Hours of Le Mans.

An LMP1 race car conceived from the
ground up is set to take to the grid
in the highest class there is with a
view to extending the run of 16 outright
wins at the Sarthe circuit.

For Porsche, however, what mat ters
even more than a place on the winners’
podium is how much experience is
gained, as well as the ideas that the race
inspires. Important findings from the
racetrack are transferred into series
production as design and test principles.
Our exhaust turbocharging or double-
clutch transmission technologies are two
examples. This proximit y bet ween the
racetrack and the road is unique. It lets
every Porsche customer take part in the
race – directly or indirectly. It lets the
customer feel what drives us. Yesterday,
today and tomorrow: Spirit. Vision.
Principle.