steering PORSCHE 911 CARRERA 2011 6.G Information Manual

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When you know your strengths,
it’s easy to acquire new ones.

The new 911 Carrera 4.
One thing is for certain. When it comes
to finding your own strengths, it always
helps to know who you are and where
you come from. Where the 911 is con­
cerned, we call this Porsche identit y.
The immense power that is embodied in
this strong identit y is immediately apparent
in the new all ­wheel ­drive 911 Carrera 4.
Its enhanced Porsche Traction Management
(PTM) converts power directly into motion.
Not in a heav y ­handed way, but intelligently.
Sensors control the rotational speeds of
all four wheels, the vehicle’s lateral and
longitudinal acceleration and the steering
angle. In this way, the active all ­wheel drive can continually respond to different
driving situations and precisely distribute
drive forces bet ween the front and rear
axles. Tuned to provide even more poised
and balanced handling during performance
driving, PTM quickly and clearly
demon ­
strates, especially in the wet and snow,
what we at Porsche understand by traction.
Expressed in simple terms, the new
911 Carrera 4 is self ­assured. An
assuredness that has been assisted by
engineering and aesthetic details such as
the wider body – the rear wings are 44 mm
wider than those of the Carrera 911 – the
295 mm wide rear t yres, the special air intakes, the illuminated rear light strip
with taillights and parking light function,
and distinctive sideskirts.
One of its inherent strengths is, of course,
its engine: the 3.4 ­litre flat ­six power unit
delivers 257 kW (350 hp) at 7,400 rpm
and accelerates the new 911 Carrera 4
from 0 to 62 mph in just 4.9 seconds.
Top speed is 177 mph. One strength
may possibly come as a surprise: by

downsizing the engine, it has been possible
to reduce the fuel consumption and CO
2
emissions by up to 15 % compared with
the previous model.
For fuel consumption and CO
2 emissions, please refer to pages 139/141.
Strength | The new 911 Carrera 4
Let ’s now bring the power of identit y
to bear on the road. With the aid of the
7 ­speed manual transmission or the
optional PDK. Both feature sports ratios
for gears 1 to 6 and a long ­ratio 7th
gear for fuel efficiency.
The 911 has many strengths. The new
911 Carrera 4, with its superlative traction,
dynamic performance and safet y, has
acquired even more. Why not take your
seat behind the wheel and make these
strengths your own?

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4041
Temperament
|
Engines
Engine cross section: 3.8 ­litre boxer engine
911 Carrera S models: 294 kW (400 hp) at 7,400 rpm, 440 Nm at 5,600 rpm

1. High ­pressure pump
2. High ­pressure injector
3. Ignition rod module
4. Camshaft controller
5. Valve lif t adjustment switch valve
6. Switch tappet with integrated valve clearance
compensation
7. Intake camshaf t
8. Intake valves
9. Valve spring
10. Combustion chamber with Alusil cylinder liner
surface
11. Forged aluminium piston
12. Forged connecting rod
13. Crankshaft
14. Water pump
15. Air ­conditioning compressor
16. Power steering pump (in conjunction with PDCC)
17. Vibration damper
18. Alternator pulley with freewheel
19. Hydraulic belt tensioner
20. Resonance valve
21. Resonance distributor
22. Resonance valve actuator
23. Intake manifold with integrated sound chamber
24. Electronically controlled throttle valve
25. Oil filter
26. Electronic map ­controlled thermostat
27. Vacuum pump
28. Coolant jacket
29. Crankcase breather
30. Timing chain
31. S t a r t e r
911 Carrera 275 kW (350 hp) at 7,400 rpm, 390 Nm at 5,600 rpm
The 3.4-litre engine.
The 911 Carrera base models are
equipped with a 3.4 ­litre boxer engine
with direct fuel injection (DFI) and
VarioCam Plus. It develops 257 kW
(350 hp) at 7,400 rpm and the maximum
torque is 390 Nm at 5,600 rpm. For the 911 Carrera with 7
­speed manual
gearbox, this means acceleration from
0 to 62 mph in 4.8 seconds and a top
speed of 179 mph. The new 911 Carrera 4
accelerates to 0 to 62 mph in 4.9 seconds
and has a top speed of 177 mph.
For fuel consumption and CO
2 emissions, please refer to pages 139/141.
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2000 2500300035004000450050005500600065007000
1000
294 kW (400 hp)440 Nm
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Power (kW)
T orque (Nm)
Engine speed (rpm)
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280 300 320 340 360 380
400 420
220 240 260
460
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60 80
100 120 140 160 180 200 220 240 260
1500 75008000
2000 2500300035004000450050005500600065007000
1000
300
280
Power (kW)
T orque (Nm)
Engine speed (rpm)
200
280 300 320 340 360 380
400 420
220 240 260
460
440
257 kW (350 hp)
390 Nm
The 3.8-litre engine.
The 911 Carrera S models are powered
by a 3.8
­litre boxer engine with direct
fuel injection (DFI) and VarioCam Plus. It
produces 294 kW (400 hp) at 7,400 rpm
and the maximum torque of 440 Nm is
achieved at 5,600 rpm. With optional Porsche Doppelkupplung
(PDK), the 911 Carrera S accelerates
from 0 to 62 mph in 4.3 seconds

and achieves a top speed of 187 mph.
The new Carrera 4S completes the
0 to 62 mph sprint in 4.3 seconds and
boasts a top speed of 184 mph.

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).

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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 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.

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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 precise
handling and excellent road holding.
With the optional Porsche Dynamic
Chassis Control (PDCC) for the S models
of the 911 Carrera, these characteristics
can be further accentuated: the vehicle
holds the road even bet ter and delivers
even sportier performance. PDCC is an active anti
­roll system that
suppresses lateral body movement during
cornering manoeuvres. In addition, it
minimises the lateral instability 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 t yres and vehicle
hold the road bet ter and you can steer
through corners faster and in a more
re l a x e d m a n n e r.
PDCC sets standards for handling
performance, ride comfort and driving
pleasure. In the 911, your ‘usual’
way suddenly becomes the Porsche way.

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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.

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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 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.

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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 models and standard
in the 9 11 Carrera S models. Both systems
actively enhance vehicle dynamics and
stability. 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.
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

Attack the corners.
Maintain good posture.

Porsche Torque Vectoring (PTV) and
Porsche Torque Vectoring Plus (PTV Plus).
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
The 911 Carrera models are 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 LED front light units incorporate
direction indicators, daytime running
lights and position lights.
Automatic headlight activation is also
included as standard. 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, the rear fog
light and – on all ­wheel ­drive models –
the rear light strip. 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
traffic more quickly to a critical situation.
The lighting system features an automa­
tic
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.
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
increased as a function of the speed of
Rear night ­time lighting Porsche Dynamic Light System (PDLS) cornering lights
Front night ­time lighting
To see something coming, experience helps.
So does forward-looking technology.

Lights.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 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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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