engine PORSCHE 911 CARRERA 2011 6.G Information Manual

5253
T
emperament
| Transmission
It is possible to have a lot of power and
yet not be able to move any thing. Only
by using your power intelligently will you
truly progress – and with consummate
ease.
Enhanced 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).

5455
Temperament

| 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 per formance
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 9 11 i d e n t i t y. T h e se
include Porsche Stability Management
(PSM), Porsche Active Suspension
Management (PASM), which comes as
standard in the 911 Carrera S models,
Porsche Torque Vectoring Plus (PTV Plus).
Porsche Dynamic Chassis Control (PDCC)
is additionally available as an option for
the
9 11 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 now 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.

5657
Temperament

| Chassis and body
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 vehicle weight saving of up to 65 kg
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 com ­
posite rigidit y, an increase in dynamic
torsional stiffness of up to 25 % compared
with that of the previous model, and
even
sportier handling despite a further
improvement in the weight to power ratio.
The longer wheelbase improves comfort
as well as straight ­line accuracy and
driving stabilit y at high speeds and in
fast corners.

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
Aluminium
Deep
­drawn steels
Multiphase steels
Super ­high ­strength micro ­alloyed steels
Boron ­alloyed steels

5859
T
emperament
| Chassis and body
Hood.
Our engineers have completely redeveloped
the hood for the 911 Carrera Cabriolet
models. The result is a flexible roof
comprising a glass rear screen and three
individual and integral hood elements,
which are manufactured from magnesium
and covered in fabric. This makes the
hood highly robust and, yet, particularly
lightweight.
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
of just 0.30 for the 911 Carrera Cabriolet
models. 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 operat ­
ed using a but ton on the centre console
or via the key remote. It opens or closes
in approximately 13 seconds and remains
operable up to a speed of 31 mph.
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.

6061
Electrically powered wind deflector.
Once again, our engineers have explored
new directions, 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 now a thing of the past
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 it is ready for use at all times.
For unrestricted open
­top driving pleasure,
the wind deflector extends or retracts in
only 2.0 seconds and can be operated at
speeds of up to 74 mph.
T emperament | Chassis and body
Electrically powered wind deflector

6667
Temperament

| Chassis and body
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 agility, 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 extreme
precision while steering comfort remains
as high. At low speeds, the
steering ratio
of Power steering Plus
adjusts for much
easier manoeuvring and parking.
SPORT button.
Fit ted as standard, the SPORT button
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 automati
­
cally 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.
Every day can be sports day.

Additional performance enhancement systems.

6869
Temperament

| Chassis and body
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.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 road holding.
In SPORT PLUS mode, the trigger thresh ­
old
for PSM is raised. Agilit y is perceptibly
enhanced when braking for corners with
PSM, allowing sportier braking and exit
acceleration. For maximum 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 gearshif t 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 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 mini ­
mises the oscillations and vibrations of the
entire drive train, 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
comfort.

7677
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
six­piston 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 deceler ­
ation 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 modified air spoilers.
Standard brake system on the 911 Carrera models
Standard brake system on the 911 Carrera S models

8485
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 rooflining 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 | Comfor t

8687
Composure
| Comfor t
Engineering that takes you forward:

the standard 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.
Sporty not kitsch, practical not fanciful.
The five circular 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 Sound
Package Plus offers outstanding perfor
­
mance with a totaloutput of 235 wat ts.
Available as an option is the BOSE
®
Surround Sound System with a total out ­
put 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 manufac ­
turer 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 dis ­
plays the navigation system map, delivers
various warnings, including alerts from
the Tyre Pressure Monitoring (TPM)
system, and reminds you of your selected
communication and audio set tings. You
can also use it to carry out individual
vehicle settings.
TFT display
Instruments in the 911 Carrera S with silver ­coloured rev counter