2014 PORSCHE 911 light

2829
Switchbacks, hairpins, zigzags, S-bends...
There are countless reasons for having intelligent all-wheel drive.

The 911 Carrera 4S.
Steadfastness. Another apparent Porsche
contradiction. But whilst it ’s true that
sports cars are all about movement,
about surging forwards, it ’s even more
important to stay calm at all times,

to act with composure and never rashly.
So it ’s reassuring that you can rely

on the handling characteristics of the
911 Carrera 4S.
The Porsche Traction Management

(PTM) active all-wheel- drive system is
particularly dependable, especially

when driving the car at the limits of
performance. To achieve this, our
engineers have travelled right to the
physical boundaries – and extended

them. PTM now ensures that the car is poised and balanced, and really comes
into its own when adopting a sport y
driving st yle or travelling in extreme
weather conditions.
At the rear, the car is the personification
of roadholding, with its 44 mm wider
body and broader track by comparison
with the rear-wheel- drive 911 Carrera
models, and with road-hugging 305 mm
wide rear wheels. The seamless
horizontal taillight strip continues the
same st yling language. The all-wheel-
drive model is also recognisable from

the front, thanks to its dynamically
accentuated cooling air intakes in the
front end.
Though the car is practically at one with
the ground, it cannot keep still. This is
unsurprising when it is powered by a

3.8-litre engine developing 294 kW
(400 hp) at 7,400 rpm. When combined
with optional Porsche Doppelkupplung
(PDK), this power unit can accelerate the
car to 100 km/ h in a mere 4.3 seconds.
And continue up to a maximum speed of
297 km/ h.
Nevertheless, the 911 Carrera 4S
demonstrates that this level of
performance needn’t come at the
expense of fuel consumption and CO2
emissions. Fuel-efficient technologies,
such as electrical system recuperation,
For fuel consumption, CO
2 emissions and efficiency class, please refer to pages 141/143.
S trength | The 911 Carrera 4S
auto start/stop – both integrated as
standard – and the ‘coasting’ function of
PDK, prove that Porsche is continually
resolving conflicting aims by means of
Intelligent Performance.
Where safety is concerned, the mono -
bloc fixed brake calipers at the front of
the S models have six pistons instead
of four, whilst the brake pads are 10 %
larger. The result is even shorter braking
distances. Proof that, at Porsche, safet y
is an integral part of performance, not its
polar opposite.
Steadfast through and through.
Corner after corner.

3031
which displays superlative performance.
The 0 to 100 km/ h sprint is completed

in 5.1 seconds, for example. And it boasts
a top speed of 282 km/ h.
When it comes to traction, however,
composure and reason prevail in

the form of the Porsche Traction
Management (PTM) active all-wheel-

drive system. Working together with
Porsche Stability Management (PSM),
PTM ensures excellent levels of stability
and safet y. So you can give free rein to
your emotions. Even in the wet and snow.
It may come as a surprise to you, but our
engineers are very emotional people.
And clear thinkers. There is no conflict
bet ween these t wo traits. On the contrary,
they are ideal qualifications for those
tasked with the development of a
cabriolet that is more than just a fair-
weather car: the 911 Carrera 4 Cabriolet.
Entirely without contradiction, it
combines the thrills of open-top driving
with outstanding roadholding.
May we now appeal to your emotions?
Here goes. The 911 Carrera 4 Cabriolet is
powered by a 3.4-litre boxer engine
developing 257 kW (350 hp) at 7,400 rpm,
S trength | The 911 Carrera 4 Cabriolet
There’s a lot of emotion in engineering.
Such as that unique cornering feel.

The 911 Carrera 4 Cabriolet.
The hood of the 911 Carrera 4 Cabriolet
is able to adapt to the weather and your
mood in precisely 13 seconds. That ’s
all the time it needs to open or close
at road speeds of up to 50 km/ h.
Magnesium support elements make the
hood light weight, yet extremely rigid and
robust. An integral wind deflector is
fit ted as standard. Electrically powered,
it extends in just t wo seconds.
There’s a feeling of pride that the fabric
hood creates the same elegant silhouet te
as that of the 911 Coupé models. The
powerful proportions – the body that is 44 mm wider at the rear, the broader
rear track and 295 mm wide rear t yres –
are characteristic of all-wheel-drive
design. All this combines to create that
unique Porsche cornering feel.
We think that it ’s bet ter to play out

your emotions than to conceal them.
The 911 Carrera 4 Cabriolet.
For fuel consumption, CO
2 emissions and efficiency class, please refer to pages 141/143.

3233
Which vital ingredients do you need to
experience moments of true happiness?
It ’s our conviction, at least, that you need
impressive roadholding. Plus safety,
reliabilit y and faith in technology that won’t
let you down when you need it most.
Because only when we have peace of
mind are we truly free.
All these ingredients have been brought
together in the 911 Carrera 4S Cabriolet.
The car, powered by a 3.8-litre direct fuel
injection (DFI) engine with a maximum
output of 294 kW (400 hp) at 7,400 rpm,
sprints from 0 to 100 km / h in
4.7 seconds and boasts a top speed of
296 km/ h.
Strength | The 911 Carrera 4S Cabriolet
The strength of identity can be measured after all.
In moments of happiness.

The 911 Carrera 4S Cabriolet.
The car’s ‘happiness hub’, however, can
be found in the perfected Porsche
Traction Management (PTM) active all-
wheel-drive control system. Handling is
poised and balanced, particularly when
the car is being driven at its limits. This
makes controlling the car even easier
and driving even more pleasurable.
The hood of the 911 Carrera 4S Cabriolet
lets you open up to the open road. The
fabric hood featuring magnesium elements
is light weight, yet robust and extremely
rigid. It opens in just 13 seconds at road
speeds of up to 50 km/ h. When closed,

it shows off an aerodynamically optimised
silhouet te that has a drag coefficient of just 0.31. Which is also why you can hear
hardly any wind noise.
You can certainly hear the engine though.
The sound is – and remains –
unmistakably Porsche. A crucial quality
for a strong identit y.
It’s possible, of course, to describe
moments of happiness. But it’s far

bet ter to experience them first hand.
The 911
Carrera 4S Cabriolet.
For fuel consumption, CO2 emissions and efficiency class, please refer to pages 141/143.

3637
T
emperament
| Engine
To give more and take less.
That’s Porsche engineering.

Engines.
You could ask whether the sports car is
still relevant. It would be a good question,
but you might as well ask the same of
dreams.
The answer to both questions lies in the
future or, to be more precise, in the
future of the sports car. In the 911,

the future is already here. The highly
efficient, state-of-the-art engines make

a considerable contribution to the
comparatively low fuel consumption,

but their sound is still unmistakably
Porsche.
The 911 engines are also unmistakably
sport y thanks to the SPORT but ton fit ted
as standard. At a single push, the engine
becomes tuned for a sharper response
and engine dynamics that are even more
direct.
The 3.4-litre engine of the 911 Carrera
models demonstrates, therefore,
that performance and efficiency need
not be mutually exclusive. Rather, the
comparatively low engine capacity
combined with a high maximum torque
are the intelligent basis by which high
power output can be achieved in
an environmentally acceptable and
sustainable way.
In their search for improved efficiency,
our engineers analysed an extensive series
of engine components. Answers were
found, including rapid heating of the
engine and gearbox to normal operating
temperature after an engine start by the
thermal management system, improved
air induction and extremely effective
direct fuel injection (DFI).
Weight is critical to efficiency. This is
why the engines have a light-alloy
construction, making them lightweight
and yet structurally rigid. The result is
comparatively low fuel consumption and
a long service life. The engine is the intelligent core of our
identit y. What else could the ‘Dr. Ing.’ in
our company name possibly stand for?
For fuel consumption, CO
2 emissions and efficiency class, please refer to pages 141/143.

4041
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
efficient drive systems. The same applies
on the road. It ’s about get ting the most
out of what you’ve got.
Auto start/stop function.
The auto start/stop function is standard
in the 911 Carrera models.
In cars with the manual gearbox, the
engine switches off automatically
when, for example, you stop at traffic
lights, 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,
for example: extreme outside tempera
-
tures, when the SPORT but ton is selected
or if bat tery charge is low. It is also pos -
sible to deactivate the function manually
using a separate but ton on the centre
console.
Thermal management.
The 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 911 Carrera models are also
equipped as standard with fuel-saving
electrical system recuperation tech -
nology. 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.
T emperament | Engine
Not as thirsty as you might think.

Efficiency-enhancing measures.
For fuel consumption, CO2 emissions and efficiency class, please refer to pages 141/143.

4445
T
emperament
| Engine
Integrated dry-sump lubrication.
Integrated dry
-sump lubrication ensures
a reliable supply of oil even when a
sport y driving st yle is adopted. It also
has additional cooling functions.
The oil tank is located in the engine,
thereby eliminating the need for an
external oil tank, which saves both space
and weight. To reduce power loss and
increase efficiency, an electronically
controlled oil pump supplies the lubricat -
ing points inside the engine as and
when required. When demand is low, the
oil pump is operated at reduced power,
thereby saving fuel.
Air intake system.
The resonance intake system increases
the intake volume by exploiting the fact
that air oscillates as it passes through
the intake manifold. The system can
adjust to engine speed. Benefits of this
include higher torque at low engine
speeds and a flat ter torque curve. The
911 Carrera S models operate a t wo -
stage system.
The entire intake system is made from
light weight plastic. In the 911 Carrera
models, the resonator volume of the air
filter housing varies with engine speed to
bring added character to the engine
sound, which becomes much more
powerful at higher rpm.
Exhaust system.
The exhaust system of the 911 Carrera
models is a concept that delivers a clear
statement, not only in terms of
acoustics.
The stainless steel exhaust system com-
prises two distinctive and independent
exhaust tracts. The cataly tic converters
heat up rapidly for effective emissions
reduction.
A selectable t wo -tract sports exhaust
system featuring distinctive polished
stainless steel tailpipes is available as
an option. Activated by a but ton, it
produces an even more intensive sports
car sound.
Engine management system.
The EMS SDI 9.1 engine management
system ensures optimum engine perfor -
mance at all times. It controls, for
example, the position of the electronic
throt tle valve (ETC) – a prerequisite for
compatibility with the Porsche Stability
Management (PSM), which comes as
standard. It also regulates all engine -
related functions to achieve optimum
fuel consumption, emissions and power
output whatever the driving st yle.
Another function is the cylinder -specific
knock control. Since the cylinders never
all work under exactly the same condi -
tions, the knock control function monitors
each one separately. The ignition point
is shifted individually, as and when
necessary, to protect the cylinders and
pistons at high engine speeds.
For compliance with EU standards, the
on -board diagnostics detect any faults
and defects that may occur in the exhaust
and fuel systems and then notify the
driver immediately. This also prevents
increased pollutant emissions and
unnecessary fuel consumption.
For fuel consumption, CO2 emissions and efficiency class, please refer to pages 141/143.
Twin tailpipe of the spor ts exhaust system Single
-tube tailpipe on the 911 Carrera
Twin tailpipe on the 911 Carrera S

5455
T
emperament
| Chassis and body
Aluminium
Deep -drawn steels
Multiphase steels
Super- high -strength micro -alloyed steels
Boron- alloyed steels
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
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
low vehicle weight 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
composite rigidit y, a high degree of
dynamic torsional stiffness, and
especially sporty handling.
The long wheelbase improves comfort as
well as straight-line accuracy and driving
stabilit y at high speeds and in fast
corners.

5657
T
emperament
| Chassis and body
Hood.
To our engineers, clever and innovative
hood technology is particularly
important. The result we see today is
a flexible fabric hood comprising a fixed
glass rear screen and three integral hood
elements, which are manufactured from
magnesium. This makes the hood highly
robust and, yet, particularly light weight.
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. In the case of the 911 Carrera Cabriolet
models, for example, it ’s as low as 0.30.
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
operated using a but ton on the centre
console or via the key remote. It opens
or closes in just 13 seconds and remains
operable up to a speed of 50 km/ h. 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.