2011 PORSCHE 911 CARRERA engine

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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 new 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 Plus (PTV Plus).
Porsche Dynamic Chassis Control (PDCC)
is additionally available as an option for
the 911 Carrera S.
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.

4647
Temperament

| Chassis and body
Engineered design.
The new 911 fulfils two structural design
requirements thanks to its completely new
bodyshell: first, excellent driving dynamics
due to the body’s extremely high rigidit y;
second, a vehicle weight saving of up to
60 kg primarily as a result of the intelligent
lightweight construction.
To meet the second requirement,
we employed innovative and precise
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 100 mm 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 redesigned 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 wider track optimises turn-in.
The rear axle is equipped with a

motorsport-derived multi-link suspension
and chassis subframe. Refined axle kine -
matics for improved longitudinal damping
reduce acceleration squat and increase comfort. Light weight spring struts further
enhance agility.
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

4849
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 of a glass rear screen and
three individual and integral hood ele -
ments, which are manufactured from
magnesium and covered in fabric. This
makes the hood highly robust and, yet,
particularly lightweight. Another benefit of the new design 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 that
the new 911 Cabriolet models are able
to achieve. 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 new hood is
operated 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 50 km/ h (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.

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Electrically-powered wind deflector.
Once again, our engineers have explored
new directions, this time in the wind
tunnel. The new 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 no mat ter how fast you
are driving.
T emperament | Chassis and body
Electrically-powered wind deflector

5657
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 new electromechanical power steering.
Statistics 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 beneficial 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 as
you would expect and responds with
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 new 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 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.

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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 S model, 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 new 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. Based on the
engine mounts of the 911 GT3 and
911 Turbo models, it is the first time that they have been available for a

911 Carrera. Even if track racing is not
for you, dynamic engine mounts make
a decisive contribution to dynamic
performance on the road, too.
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
provide a higher level of comfort.

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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 and 911 Carrera Cabriolet
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 911 Carrera S models, we have
fit ted larger brakes and more brake pistons
to cope with the increased engine power
of these models. The new generation of
brakes features 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 a
reduction in stopping distance compared
with that of the previous model.
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 decelera -
tion constant. Pedal effort is reduced and
braking response improved by a newly
developed 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
Standard brake system on the 911 Carrera S

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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, unadul -
terated 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 new elevated 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 operating logic, such as that
of the two-zone air conditioning system
or the suspension set tings, is clear and
uncomplicated. You shouldn’t have to
browse one submenu after another. You
should instead be able to concentrate
on what ’s important: the road.
Inside there is a range of high qualit y
materials used, including a full leather
interior as standard. 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, Plati -
num 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 quality wood.
Composure | Comfor t