PORSCHE 911 CARRERA 2011 6.G Information Manual

4243
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 weight saving of approximately
50 kg in the bodyshell as a result of an
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
compartment and luggage compartment
lids. Light weight magnesium was also
selected for the cockpit support beam.
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 increased anti-dive (reduced pitching
under braking), and the wider track opti
-
mises turn-in.
The rear axle is equipped with a
motorsport-derived multi-link suspension
and chassis subframe based on the
LSA concept (Lightweight, Stable, Agile),
which has been modified to offer improved noise characteristics. 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

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Temperament

| Chassis and body
PASM, the electronic damping control
system, is standard in the 911 Carrera S
and available as an option for the
911 Carrera. It actively and continuously
regulates damping forces according
to driving st yle and road conditions.
In addition, the suspension is lowered
by 10 mm.
PASM has t wo modes, which can be
selected using a separate but ton on
the centre console: ‘Normal’, which is a
blend of performance and comfort, and
‘Sport ’ where the setup is much firmer. Sensors record the body movements

that accompany powerful acceleration,
braking or uneven road surfaces. In the
new 911, the number of sensors has
been increased for improved data acqui -
sition and even more ef ficient control
interventions. The PASM control unit eval -
uates the driving conditions and modifies
the damping force on each of the wheels
in accordance with the selected mode.
In ‘Sport ’ mode, the suspension is set to
a harder damper rating. On uneven roads,
PASM immediately switches to a softer rating, thereby improving contact
bet ween the wheels and the road.

When the road surface improves, PASM
automatically reverts to the original,
harder rating. If ‘Normal’ mode is selected
and the driver’s st yle becomes more
assertive, PASM automatically switches
to a harder rating. Damping firms up,
and driving stabilit y and road safet y are
increased.
The results are tangible: increased
driving stability, improved comfort and
enhanced performance.
No need to let the laws of physics
spoil your fun.

Porsche Active Suspension Management (PASM).PASM sports suspension.
The new PASM sports suspension is
available as an option for both models
in conjunction with 20-inch wheels and
Porsche Torque Vectoring (PTV) or
Porsche Torque Vectoring Plus (PTV Plus). The ride height is 20 mm lower than

with the standard suspension or 10 mm
compared with the PASM suspension.
The springs are harder and shorter, and
the anti-roll bars on the front and rear
axles are stiffer. The front spoiler lip has
a more sport y geometry, the rear spoiler extends even further. These not only

further reduce lift at the front axle, but
also provide downforce at the rear axle
for improved aerodynamics and even
better performance.

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Temperament

| Chassis and body
It ’s easy, and even makes sense, to carry
on in your usual way, but what happens
if a sudden change of direction leaves
you thrown off course? Then, it all comes
down to personal strength.
A Porsche has a clear sense of purpose
and is the embodiment of strength.
It demonstrates this with sport y and pre -
cise handling and excellent road holding. With the optional Porsche Dynamic

Chassis Control (PDCC) for the S model
of the new 911, these characteristics can
be further accentuated: the 911 Carrera S
holds the road even bet ter and delivers
even sportier performance. PDCC is an active anti-roll system that
anticipates and reduces lateral body
movement during cornering manoeuvres.
In addition, it minimises the lateral insta
-
bilit y of the vehicle on uneven ground.
This effect is achieved with the aid of
hydraulic stabilising actuators in the form
of cylinders designed to optimise camber.
Lateral roll is counteracted by forces
generated at each individual wheel, based
on steering angle and lateral acceleration.
Rapid cornering in the 911 Carrera without PDCC (illustrative example) Rapid cornering in the 911 Carrera S with PDCC (illustrative example)
You appreciate directness.
But love a few twists and turns.

Porsche Dynamic Chassis Control (PDCC).The results are improved dynamic
performance and increased ride comfort
at all speeds, as well as optimised turn-in
and stable load transfer characteristics.
In simple terms, the vehicle holds the
road bet ter and you can steer through
corners faster and in a more relaxed
m a n n e r.
PDCC sets new standards for handling
performance, ride comfort and driving
pleasure. In the new 911, your ‘usual’
way suddenly becomes the Porsche way.

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Temperament

| Chassis and body
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 speed -sensitive
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 the
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
re c o rde d s o f a r.
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 the

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.
The engine is bolted to the body by t wo
mounts. Like any mass, it obeys the law
of inertia. This means that it will continue
moving in a uniformly straight line unless
some force causes it to change direction.
Put more simply: when you are driving
into a bend, the vehicle will follow your
steering but, at first, the mass of the
engine will not. This means that the rear
of the vehicle will ultimately be pushed
out wards as a result of the engine’s
force of inertia.
Dynamic engine mounts minimise
this effect. Steering angle and both
longitudinal and lateral acceleration
are constantly recorded by sensors. The stiffness and damping performance
of the engine mounts adapt to changes
in driving st yle and road surface condi
-
tions, which is achieved by use of a fluid
magnetised in an electrically generated
field. This results in greater traction
and perceptibly more stable handling
under load change conditions and in
fast corners.

5253
Wheels.
On the new 911, the wheels have been
enlarged by one inch over the previous
model. Not only do the larger wheels
improve dynamic performance, they
also look more imposing.
The new 911 Carrera is equipped with
19-inch Carrera wheels as standard. These are light weight alloys featuring

a classic sport y design. Tyre sizes are
235/40 ZR 19 and 285/35 ZR 19 at
the front and rear respectively.
The S model is equipped with light-alloy
20 -inch Carrera S wheels as standard.
The visual effect is sport y and dynamic.
The t yres are slightly wider to cope
with the increased power output of this model: 245/35 ZR 20 at the front,
295/30 ZR 20 at the rear.
The larger t yre size improves both ride
comfort and track performance. The

rolling resistance of the summer t yres
has been reduced by up to 7 % to improve
fuel economy, while t yre weight and dry
braking distances have also been
reduced. A selection of 20-inch wheels is available in
our range of options.
Tyre Pressure Monitoring (TPM).
Tyre Pressure Monitoring (TPM) is available
on request. This safet y system sends
warnings to the on-board computer’s
display screen in the event of low t yre
pressure or a gradual or sudden loss
of pressure. The individual pressures
in all four t yres can be displayed in the
instrument cluster.
Porsche Stability Management (PSM).
As standard, the new 911 models

are equipped with enhanced Porsche
Stabilit y Management (PSM), which
maintains stability even at the limits of
dynamic driving performance. Sensors
continuously monitor the direction,
speed, yaw velocity and lateral acceleration
of the car. Using this information, PSM is able to calculate the actual direction
of travel at any given moment. If the car
begins to oversteer or understeer, PSM
applies selective braking on individual
wheels to restore stabilit y.
Under acceleration on wet or low-grip
road surfaces, PSM improves traction
using the automatic brake differential
(ABD), anti-slip regulation (ASR) and
engine drag torque control (EDC) function.
When the SPORT PLUS mode of the
optional Sport Chrono Package is selected,
the PSM threshold is raised to allow a
sportier driving st yle.
For an even more dynamic experience,
you always have the option to deactivate
PSM. It is automatically reactivated,

for your safet y, only if you brake harder
and either of the front wheels (in SPORT
PLUS mode, both of the front wheels)
requires ABS assistance. ABS and ABD,
however, remain active at all times.
PSM therefore offers a high level of
driving stability and safety combined
with extraordinary agilit y. It ’s an
apparent contradiction in terms, but an
intrinsic part of the Porsche identit y.
19-inch Carrera wheel (standard on the 911 Carrera)
20-inch Carrera S wheel (standard on the 911 Carrera S)911 Carrera S with 20-inch Carrera Classic wheels
Temperament | Chassis and body

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Temperament

| Chassis and body
PTV in conjunction with the manual gear -
box, or PT V Plus with Porsche Doppel-
kupplung (PDK), are available as options
for the 911 Carrera and standard in the
911 Carrera S. Both systems actively
enhance vehicle dynamics and stabilit y.
Operating in conjunction with a mechanical
(PT V) or electronic (PT V Plus) rear
differential lock, they work by braking the
rear wheels as the situation demands.
As a function of steering angle and steering
speed, accelerator pedal position, yaw
rate and vehicle speed, PT V and PT V Plus are able to improve steering response
and steering precision by specific braking
of the right or left rear wheel.
To be more precise, this means that when
the car is driven assertively into a corner,
moderate brake pressure is applied to the
inside rear wheel. Consequently, a greater
amount of drive force is distributed to the
outside rear wheel, inducing an additional
rotational pulse (yaw movement) around
the vehicle’s vertical axis. This results in
a direct and sport y steering action as the
car enters the corner.
Attack the corners.

Maintain good posture.

Porsche Torque Vectoring (PTV) and
Porsche Torque Vectoring Plus (PTV Plus).At low and medium vehicle speeds, PT V
and PT V Plus significantly increase agilit y
and steering precision. At high speeds
and when accelerating out of corners,
the rear differential lock ensures greater
driving stability. With PTV, the differential
lock is regulated mechanically; with PT V Plus, it is regulated electronically and
the torque distribution is infinitely varia
-
ble. Whichever system is fit ted, it interacts
with Porsche Stabilit y Management (PSM)
to improve driving stabilit y on a range of
surface conditions, including the wet and
snow. For the driver, this means remarkable

stability, easier handling and outstanding
traction as well as greater agilit y at every
speed with precise steering and stable
load transfer characteristics. What else?
Unrivalled driving pleasure at every t wist
and turn.

dis
tenacious
precise
controlled
balanced
i
fore
uncompromisi
Composure

5859
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 is 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, we have fit ted
larger brakes and more brake pistons to cope with the increased engine power of
this model. The new generation of brakes
features red six-piston monobloc alumini
-
um fixed brake calipers at the front and
four-piston aluminium monobloc fixed
calipers at the rear. The brake disc diam -
eter 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 model, 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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From the start, Porsche has been
synonymous with motorsport. Ever since
1948, when we found our identit y on
the racetrack, we have taken the experi -
ence we have gained and applied it to
the road. The optional Porsche Ceramic
Composite Brake (PCCB) is a fine example.
This brake system has already had to
cope with the harshest requirements of
Composure | Safet y
motor racing and is fit ted in cars that
compete in demanding events such as
the Porsche Mobil 1 Supercup.
The cross-drilled PCCB ceramic brake
discs for the new 911 have a diameter
of 350 mm front and rear for even more
formidable braking performance.
The use of six-piston aluminium monobloc
brake calipers on the front axle and four-
piston units at the rear – all finished in
yellow – ensures extremely high brake
forces which, crucially, are exceptionally
consistent. What we’ve discovered from over 28,000 racing victories:
Brake later, finish sooner.

Porsche Ceramic Composite Brake (PCCB).PCCB enables shorter braking distances
in even the toughest road and race
conditions. Excellent fade resistance
ensures greater balance when slowing
from racetrack speeds.
The key advantage of PCCB is the
extremely low weight of the ceramic
brake discs, which are approximately
50 % lighter than standard discs of similar
design and size. As well as enhancing
performance and fuel economy, this
represents a major reduction in unsprung
and rotating masses. The consequence
of this is bet ter road holding and increased comfort, particularly on uneven
roads, as well as greater agilit y and
improved handling.
Please note that circuit racing, track

day use and other forms of performance
driving can significantly reduce the
service life of even the most durable
brake pads and discs.
As with conventional high-performance
braking systems, we recommend that
all brake components be professionally
inspected and replaced where necessary
after every track event.