engine PORSCHE 911 2014 6.G Information Manual

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

5253
T
emperament
| Chassis and body
“That can’t be done.”
If ever a sentence gave motivation to sports car designers, this is it.
Chassis and body.
A solid identit y tends to be described
with words like stability, directness or
substance. This might sound a lit tle
serious but, when it comes to the chassis
and body, we think that this is entirely
the right approach.
The best example is the engineered
design. Indeed, dynamic performance
and ride comfort fundamentally depend
on factors such as vehicle weight, body
rigidity, wheelbase, axle construction and
steering. With the 911, we challenged our
engineers to push the boundaries of what
is possible. Chassis control systems make a key
contribution to the 911 driving experience
and thus to the 911 identit y. These
include Porsche Stability Management
(PSM), Porsche Active Suspension
Management (PASM), which comes as
standard in the 911 Carrera S models,
Porsche Torque Vectoring (PT V) and
Porsche Torque Vectoring Plus (PT V Plus)

in conjunction with PDK. Porsche Dynamic
Chassis Control (PDCC) is additionally
available as an option for the 911 Carrera S
models.
Yet, there is still scope for improvement
as far as sport y performance is
concerned. The optional Sport Chrono
Package triggers an adrenaline rush at
the push of a but ton. Dynamic engine
mounts, until recently exclusively
reserved for 911
GT and Turbo models,
may not be capable of breaking the laws
of physics, but they do succeed in
exploiting them to their own advantage –
and yours.

5455
T
emperament
| Chassis and body
Aluminium
Deep -drawn steels
Multiphase steels
Super- high -strength micro -alloyed steels
Boron- alloyed steels
Front and rear axles.
The independent suspension at the front
features a light weight spring-strut axle
with longitudinal and transverse links and
cross members that have been refined
for stiffness. Each front wheel is precisely
located, ensuring excellent directional stability, superior handling and reduced
pitching under braking, and the wide
track optimises turn-
in.
The rear axle is equipped with a
motorsport- derived multi -link suspension
and chassis subframe. Refined axle
kinematics for improved longitudinal
damping reduce acceleration squat and increase comfort. Light weight spring
struts further enhance agilit y.
The high proportion of aluminium used in
the construction of the axles reduces the
weight of the vehicle and of the unsprung masses, helping to improve fuel economy,
comfort and agility.
Rear axle of the 911 Carrera S
Front axle of the 911 Carrera S
Engineered design.
The innovative bodyshell of the 911 fulfils
t wo structural design requirements: first,
excellent driving dynamics due to the
body’s extremely high rigidit y; second, a
low vehicle weight primarily as a result of
the intelligent lightweight construction.
To meet the second requirement, we
employed state -of -the- art techniques for
combining various materials in order
to utilise specific material properties
exactly where they are needed.

For the bodyshell, therefore, we used
very thin, but nevertheless extremely
rigid, sheets of steel. Aluminium and magnesium were used extensively in
areas such as the roof, underbody, front
end, doors, rear wings and engine com
-
partment and luggage compartment lids.
Magnesium, which is a particularly light -
weight material, was also selected for
the cockpit and centre console support
beam and, in the Cabriolet models,
the hood shell elements. Such material efficiency is key to
reducing the overall weight and, as a
result, fuel consumption of the vehicle.
For the driver, this intelligent blend of
materials reduces the weight of the
vehicle and offers a high level of comfort
thanks to excellent vibration-damping
characteristics and particularly high
composite rigidit y, a high degree of
dynamic torsional stiffness, and
especially sporty handling.
The long wheelbase improves comfort as
well as straight-line accuracy and driving
stabilit y at high speeds and in fast
corners.

5657
T
emperament
| Chassis and body
Hood.
To our engineers, clever and innovative
hood technology is particularly
important. The result we see today is
a flexible fabric hood comprising a fixed
glass rear screen and three integral hood
elements, which are manufactured from
magnesium. This makes the hood highly
robust and, yet, particularly light weight.
Another benefit is that the hood is
smooth and firm. The fabric remains taut
keeping the familiar 911 lines elegant. A
trivialit y? Only if you choose to ignore the
impressively low drag coefficient. In the case of the 911 Carrera Cabriolet
models, for example, it ’s as low as 0.30.
A further feat of Porsche engineering.
The rear screen is made from glass

and is electrically heated and scratch-
resistant to provide excellent rearward
visibilit y. A rain channel on the hood
carries away water to avoid dripping
when the doors are opened.
Electrically powered, the hood is
operated using a but ton on the centre
console or via the key remote. It opens
or closes in just 13 seconds and remains
operable up to a speed of 50 km/ h. The concertina action ensures optimum
protection for the interior lining.
The interior hood lining is made from
a heat-
insulating and sound
-absorbing
material. Consistent interior temperatures
and an effective suppression of wind
noise are the perceptible results. Thank -
fully, however, even the hood’s sound -
proofing properties are no match for
the resonant Porsche sound.
Open, flexible, independent.
The optimum prerequisites for a long-term relationship.
Cabriolet technology.

5859
Electrically powered wind deflector.
Once again, our engineers have gone
their own way – this time in the wind
tunnel. The 911
Carrera Cabriolet models
are equipped as standard with an
electrically powered wind deflector,
which offers practically draught-free driving and minimal wind noise with the
top down.
With the 911, fit ting and removing the
wind deflector is unnecessary because

it is integrated directly into the body
behind the rear seats. As a result, it
doesn’t take up any extra space in the interior or luggage compartment and is
ready for use at all times.
For unrestricted open
-top driving pleasure,
the wind deflector extends or retracts
in just t wo seconds and can be operated
at speeds of up to 120 km/ h.
T emperament | Chassis and body
Electrically powered wind deflector

6465
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.

6667
T
emperament
| Chassis and body
On activation of SPORT PLUS mode,
Porsche Active Suspension Management
(PASM) and, in the 911 Carrera S models,
optional Porsche Dynamic Chassis
Control (PDCC) switch to a harder
damping set ting and offer more direct
steering and, therefore, better
roadholding. In SPORT PLUS mode, the trigger
threshold for PSM is raised. Agilit y is
perceptibly enhanced when braking for
corners with PSM, allowing sportier
braking and exit acceleration. For even
greater dexterit y, PSM can be set to
standby while the car is still in
SPORT PLUS mode. For safet y, it is
set to intervene automatically only

when ABS assistance is required on both
the front wheels.
In combination with PDK, the Sport
Chrono Package has t wo additional
functions for a sport y drive that borders
on a motorsport experience. The first is ‘Launch Control’, which can be used

on the track to achieve the best
possible standing start – a racing start.
The second function is the ‘motorsport-
derived gearshift strategy’. Using this,
Porsche Doppelkupplung (PDK) is geared
up for extremely short shift times and optimum shift points for the maximum
acceleration available. This combination
of uncompromising and involving perfor-

mance is ideal for the racetrack.
A key component of the Sport Chrono
Package is the stopwatch mounted on
the dashboard. In conjunction with
optional PCM, a special performance
display enables you to view, store and
evaluate lap times or other driving times.
It shows the total driving time, lap
distance, lap number and lap times
recorded so far.
A feature of the Sport Chrono Package
borrowed from motorsport is the dynamic
engine mounts. These exploit the laws
of physics for your own driving pleasure.
Dynamic engine mounts.
You don’t have to take the 911 onto the
racetrack. But you can, more so than
ever, because dynamic engine mounts
are now included as part of the Sport
Chrono Package.
The electronically controlled system
minimises the oscillations and vibrations
of the entire drivetrain, especially
the engine, and combines the benefits
of a hard or soft engine mounting
arrangement.
A hard engine mounting delivers optimum
dynamic performance because it offers
the highest degree of handling precision
possible. Soft engine mounts, on the
other hand, minimise oscillations and
vibrations. While comfort is improved on
uneven road surfaces, this comes at
the expense of dynamic performance. Our engineers have solved this problem
by enabling the engine mounts to adapt
their stiffness and damping properties to
changes in driving st yle and road surface
conditions. This has been achieved by
use of a fluid with magnetic properties in
interaction with an electrically generated
field. For the driver, the results are tangi-

ble. Handling is perceptibly more stable
under load change conditions and in
fast corners. Whenever a less assertive
driving st yle is adopted, the dynamic
engine mounts provide a higher level of
comfor t.

7475
Composure
| Safet y
Control, discipline, precision.

At Porsche, we take driving pleasure very seriously.

S a f e t y.
Brakes.
Another crucial piece of the Porsche
identit y is the brakes. We value them as
highly as we do our engines and chassis.
They set standards for deceleration and
stabilit y, and give the driver the reassur
-
ance needed to push the car to the limits
of its performance.
The 911 Carrera base models are fit ted
front and rear with anodised black four-
piston aluminium monobloc fixed
calipers. All brake discs have a diameter
of 330 mm. On the S models, we have fit ted larger
brakes and more brake pistons to cope
with the higher engine power of these
models. Consequently, they feature red
six-piston monobloc aluminium fixed
brake calipers at the front and four-piston
aluminium monobloc fixed calipers at
the rear. The brake disc diameter is
340 mm at the front and 330 mm at the
rear. The results are enhanced braking
performance and stability.
On all models, the brake calipers have
an enclosed monobloc construction.
This makes them tougher but lighter
and enables a more rapid response and release of the brake even under extreme
loads. The pedal travel is short and

the biting point precise. The brake discs
are cross-drilled for better performance
in the wet.
Other benefits of the standard braking
system include the anti-lock braking
system (ABS), designed to keep
deceleration constant. Pedal effort is
reduced and braking response improved
by an 8-/9-inch tandem vacuum brake
booster. In the S models, brake disc
cooling is further enhanced by the
inclusion of air spoilers.
Standard brake system on the 911 Carrera models
Standard brake system on the 911 Carrera S models

8283
Our identity is found under the bonnet,
in the design and behind the steering wheel.

Comfort.
Driving a 911 is first and foremost
about the feel of the road in the original,
unadulterated and direct sense. Is it
possible, then, to mention the 911 and
comfort in the same breath? To speak
of systems that make driving ‘more
agreeable’, or of materials that feel
‘pleasant ’ to the touch? Good question.
In reality, however, should anyone really
be forced to choose one over the other?
Let ’s introduce ourselves to the concept
of sport y comfort – dynamic performance
that maintains composure even when
pushed to the extreme.
Interior.
Engineering and st yle – and Porsche
identit y on the inside, as demonstrated
by the ascending centre console. In
t ypical Porsche fashion, the use of form
follows a basic principle: focus on the
driver. This is why the distance bet ween
the gear lever or selector and steering
wheel is extremely short and the operat -
ing logic, such as that of the t wo -zone
air conditioning system or the suspension
settings, is clear and uncomplicated.
You shouldn’t have to browse one sub -
menu after another. You should instead
be able to concentrate on what ’s
important: the road. Our materials are high- qualit y with a
sporty character. The steering wheel rim,
door pulls and armrests are in leather,
for instance. Alcantara has proven its
worth in motorsport and is used as
standard for the roof lining of the Coupé
models.
In addition to the choice of Black,
Platinum Grey, Luxor Beige and Yachting
Blue for the interior, there is a wide

range of other personalisation options
available, including two-
tone colour
combinations or special colours and
materials such as carbon, aluminium
or high - qualit y wood.

Composure | Comfort

8485
Composure
|
Comfort
Engineering that takes you forward:
optional Porsche Communication
Management (PCM) with navigation
module and a high-resolution 7-inch
colour touchscreen. PCM is your control
centre for audio, navigation and
communication functions.Instruments.
Sport y not kitsch, practical not fanciful.
The five round instruments have one
purpose above all: to provide information.
They do so efficiently and accurately.
Their st yling is t ypically Porsche with the
rev counter exactly where you would
expect it to be: in the middle.
Another element of the Porsche identit y
is sound. Fit ted as standard, the
CDR audio system with 7-inch colour
touchscreen and the Sound Package Plus
offer outstanding performance with a
total output of 235 wat ts. Available as an
option is the BOSE
® Surround Sound
System with a total output of 445 wat ts.
In short, it delivers powerful audio playback combined with an impressive
spatial sound.

No system promises such high standards
in the 911, and fulfils them, as the
optional High-End Surround Sound
System from Burmester®, the bespoke
manufacturer based in Berlin and one of
the most respected premium audio
manufacturers worldwide. With a total output of 821
wat ts, it ensures an
incredible audio experience.
Our patented integral subwoofer enhances
the bass performance of both optional
sound systems and also saves weight.
Typically Porsche.
Ergonomics, st yle and sound. Sports car
technology, intelligently combined. The instrument cluster with a high-
resolution 4.6-inch TFT colour screen
provides you with a continuous stream of
data from the on-board computer, such
as trip mileage, journey time or average
fuel consumption. It also displays the
navigation system map, delivers various
warnings, including alerts from the Tyre
Pressure Monitoring (TPM) system and,
in 911 Carrera 4 models, tells you
the current front /rear axle torque
distribution. You can also use it to
personalise various in-car settings.
TFT display
Instruments in the 911 Carrera 4S with silver- coloured rev counter