brake PORSCHE 911 CARRERA 2011 6.G Information Manual

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Strength

| The new 911 Carrera S
Its identity emerged on the racetrack.
Its home is on the road.

The new 911 Carrera S.
Nothing defines us more than our heritage.
It says a lot about who we are. This is
particularly true of the new 911 Carrera S,
which has all the characteristics you would
expect of a sportscar whose origin is in
motorsport.
An elementary component of its DNA,
therefore, is power in the form of a 3.8-litre
engine with direct fuel injection (DFI) and
VarioCam Plus. It delivers 294 kW (400 hp)
at 7,400 rpm, and the maximum torque
of 440 Nm is achieved at 5,600 rpm. In
conjunction with the manual gearbox, the
sprint from 0 to 100 km/h (0 to 62 mph) is
completed in just 4.5 seconds. Top speed
isn’t reached until 304 km/ h (188 mph).
On figures alone, the new 911 Carrera S
excels, particularly in terms of efficiency.
Fuel consumption and CO
2 em issio ns
have been reduced by 14 % compared
with the previous model. This has been
possible thanks to the auto start /stop
function, which is available as standard,
and the coasting function in conjunction
with the optional Porsche Doppelkupp -
lung (PDK).
It ’s not difficult to tell where the
911 Carrera S comes from. You can hear
it in the resonant engine sound and you
can see it in the t win tailpipes in brushed
stainless steel and 20 - inch Carrera S
wheels. You can also feel it, thanks to Porsche
Active Suspension Management (PASM),
which is fit ted as standard, or the optional
PASM sports suspension with sport y

aerodynamics and the ride height lowered
by 20 mm. Or the optional Sport Chrono
Package and dynamic engine mounts.
Available as standard, Porsche Torque
Vectoring (PTV), or Porsche Torque
Vectoring Plus (PTV Plus) in conjunction
with the optional PDK, increase traction.
Porsche Dynamic Chassis Control (PDCC),
the active roll stabilisation system, is
available as an option and improves agility,
comfort and safet y. On the subject of safet y, the brakes at
the front of the new 911 Carrera S come
equipped for the first time with monobloc
fixed calipers with six instead of four

pistons for improved braking performance
and a shorter braking distance. Bi-Xenon
headlights are standard and the Porsche
Dynamic Light System (PDLS) is available
as an option.
There is no doubt. The new 911 Carrera S
knows its roots, and embraces them with
efficiency, power and sporty performance.
911 Carrera S: fuel consumption in l/100 km (mpg) urban 13.8 (20.5) –12.2 (23.2) · extra urban 7.1 (39.8) – 6.7 (42.2) · combined 9.5 (29.7) –8.7 (32.5);
CO
2 emissions 224–205 g / km

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A widely held belief about motorsport is
that power is the only thing that mat ters.
From experience, we know bet ter. Extra
horsepower alone has never been enough
to win a single race. Much more important
to us are ideas – ideas that inspire more
intelligent vehicle concepts and more ef fi-
cient drive systems. The same applies on
the road. It ’s about get ting the most out
of what you’ve got. select neutral and release the clutch
pedal. In cars with Porsche Doppel
kupplung
(PDK), the engine switches off whenever
you stop and leave your foot on the
brake pedal.
All audio and communication systems
remain switched on and the climate con -
trol continues to maintain your selected
temperature. The only differences you
will notice are the silence at the rear and
the fuel saving. As soon as you operate
the clutch or release the brake, the
engine will restart swiftly and smoothly.
The auto start/stop function may remain
inactive under particular circumstances,
extreme outside temperatures, when the
SPORT but ton is selected or if bat tery
charge is low. It is also possible to deacti -
vate the function manually using a
separate but ton on the centre console.
Thermal management.
The new thermal management system
regulates the temperature in the engine
and gearbox through the intelligent
manipulation of heat flow.
In this way, the engine and gearbox reach
their optimum operating temperature
sooner. As a result, fuel consumption is
reduced through increased combustion
efficiency and lubrication performance.

Electrical system recuperation.
The new 911 models are also equipped
as standard with fuel-saving electrical
system recuperation technology.
The vehicle bat tery is recharged by the
alternator, predominantly under braking.
Under acceleration, on the other hand,
the power draw of the alternator is
limited to increase the engine output
available for driving. The electrical
systems are supplied by the electrical
energy stored during the recharging
process.
Temperament | Engines
Auto start/stop function.
The auto start/stop function is standard
in the new 911 models.
In cars with the manual gearbox, the
engine switches off automatically when,
for example, you stop at traffic lights,
Not as thirsty as you might think.

Efficiency- enhancing measures.

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7R
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Porsche Doppelkupplung (PDK).
Available as an option for the new 911
models is 7-speed PDK, featuring manual
and automatic modes. This double - clutch
transmission has been further refined and
enables extremely fast gear changes with
no interruption in the flow of power, which vastly improves acceleration at the
same time as reducing fuel consumption.
In total, PDK has seven gears at its disposal.
Gears 1 to 6 have a sports ratio and top
speed is reached in 6th gear. 7th gear has
a long ratio and helps to reduce fuel

consumption by keeping engine revs low.
Porsche Doppelkupplung (PDK)
PDK is essentially t wo gearboxes in one
and thus requires t wo clutches. This
double-clutch arrangement provides an
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.
Temperament | Transmission
The effect is instant. Driving feels even
sportier and more dynamic, and agility
is increased. Depending on the gearshift
programme (SPORT button activated
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 gearshif t strategy’
functions (p. 50). 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 km/ h (62 mph) to 80 km/ h
(49 mph) 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.
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.
In short, driving in coasting mode makes
a real impact on fuel consumption without
any need for compromise on comfort or
sporty performance.
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.

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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.

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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 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.

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Composure
| Safet y
Electric parking brake.
The new 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 for a brief period to
prevent the vehicle from moving in the
opposite direction.
Airbags.
The new 911 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 far sooner and
with considerably greater accuracy.
Porsche Side Impact Protection
System (POSIP).
The 911 Carrera and 911 Carrera S 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 the seat backrests, 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.

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Composure
| Safet y
The 911 Carrera and 911 Carrera S are
both equipped as standard with Bi-Xenon
headlights including a headlight cleaning
system and dynamic range control.

With dipped or main beam, the road
ahead is illuminated more uniformly.
The rest yled LED front light units
incorporate direction indicators, daytime -
running lights and position lights.
Both 911 models come with automatic
headlight activation. The moment it gets
dark, the daytime running lights switch
off and the dipped beam headlights
switch on automatically. Cut ting edge LED technology is also used
for the taillights, the high-level third brake
light, the licence plate illumination, the
rear direction indicators and the rear fog
light. LEDs provide bet ter illumination and
respond more quickly to driver input.
In the event of sudden braking, the adaptive
LED brake lights begin to pulsate. If the
vehicle is braked to a halt, the hazard
warning lights will switch on automatically,
alerting following traf fic more quickly to

a critical situation.
The lighting system features an automatic
switch-off and the ‘Welcome Home’
function. It ’s good to know what ’s around
the next corner or on the way to your
front door.
Porsche Dynamic Light System (PDLS).
The Porsche Dynamic Light System
(PDLS) is available as an option for both
models.
Its dynamic cornering light function
swivels the headlights towards the inside
of a bend, based on steering angle and road speed, in order to illuminate more
of the road at tight bends and turns.

Put simply, the road ahead is illuminated
the moment you enter a bend.
The system also of fers speed -sensitive
headlight range control. With adaptive
light systems, it is possible for the maxi -
mum range of the dipped beams to be
Taillights and high-level third brake light Porsche Dynamic Light System (PDLS) cornering lights
Porsche Dynamic Light System (PDLS) headlights
To see something coming, experience helps.
So does forward-looking technology.

Lights.increased as a function of the speed of
the vehicle. PDLS takes care of this
automatically in t wo stages. Stage 1 is
the basic position for driving in cit y traffic,
for example. Stage 2 is designed for
driving at faster speeds, such as on the
motorway. Above 130 km/ h (80 mph),
the range is adapted again.
Another feature of PDLS is the adverse
weather function, activated whenever the
rear fog light is switched on. It reduces
the effect of reflection phenomena in
poor visibilit y conditions to avoid the risk
of the driver being dazzled.

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Responsibility
|
Motorsport
On the racetrack, we’re fiercely committed.
Not least to the future.

Motorsport.
How does one book one’s place in motor -
sport history? By finishing that crucial
one hundredth of a second faster than
the competition, or a whole lap ahead of
the rest of the field? Either way, victory is
sweet. At Porsche, however, one goal
mat ters above all: turning to the next
chapter and shaping the future of motor -
sport using intelligent technologies and
unconventional ideas with the incentive of
increased power output and enhanced
efficiency, as well as the abilit y to incor -
porate these innovations into cars engi -
neered for the road.918 RSR race laboratory.
How powerful can a hybrid be? How sus-
tainable can a racecar be? If hybrid sports-
car
technology is to be taken seriously, we
believe it must prove its worth in the test -
ing environment of tomorrow – on the race-
track. The 918 RSR succeeds, lap after lap.
The drive system comprises a high-revving
combustion engine, two electric machines
on the front axle and enhanced fly wheel
energy storage derived from the 911 GT3
R Hybrid.
What did we wish to achieve? Extremely
high performance, of course, but we also
wanted a glimpse of the future. A lit tle bit
sooner and a lit tle bit faster.
911 GT3 R Hybrid.
It took a whole year’s work for just one
day: the 24 Hours of Nürburgring in
2010. With the 911 GT3 R Hybrid, our
engineers sent a 911 onto the track
equipped for the first time ever with
three drive units.
The principle is to recover unused kinetic
energy. Energy is stored by a fly wheel
accumulator that spins at up to 40,000
rpm. After braking, t wo electric motors
on the front axle enable the driver to
draw this power to boost acceleration out
of corners or for overtaking. In short: he
who brakes, wins. It is a principle that the 911 GT3 R Hybrid
brought to the front of the field at the
Nürburgring in 2010, where it remained
until the 23rd hour. Engine failure may
have forced it to retire from this particu
-
lar race, but this was not the end.
The 911 GT3 R Hybrid since went on to
compete in a number of major endurance
trials around the world. In Zhuhai in the
same year, it was recognised as the
fastest and most economical GT vehicle
in the field.
We don’t need to win to make progress.
The idea alone motivates us to achieve
greater things. Intelligent Per formance.