2013 PORSCHE 911 CARRERA gearbox

1819
Strength
|
Engineering
Let’s forget the future for a moment.
As we discover it in the present.

Engineering.
What use is the engineering of tomorrow
when it can be found on the road today?
None. So let ’s turn to the here and now.
The engines, as you would expect, are
characterised by six horizontally opposed
cylinders. The 3.4 ­litre engine in the
911 Carrera models produces 257 kW
(350 hp); in the 911 Carrera S models,
the 3.8 ­litre engine develops 294 kW
(400 hp). All variants are equipped with
direct fuel injection (DFI) and VarioCam
Plus for increased power and compara ­
tively low fuel consumption. Power is transmit ted to the wheels by the
7
­speed manual gearbox with the highest
gear designed specifically with fuel econ ­
omy in mind or, optionally, by efficiency ­
enhanced Porsche Doppel kupplung (PDK),
which offers gear changes with no inter ­
ruption in the flow of power.
On the 911 Carrera all ­wheel ­drive
models, the enhanced Porsche Traction
Management (PTM) distributes the power
to the wheels according to weather and
road conditions. Handling is even more
poised, particularly when the car is being
driven to its limits. As a result, you are
safer not just in the wet and snow, but
also when adopting a sport y driving st yle.
The chassis is also packed with forward ­
looking technology. Fitted as standard
in the 911 Carrera S and 911 Carrera S
Cabriolet, Porsche Torque Vectoring
(PTV) increases dynamic performance.
Available as an option for the S models,
Porsche Dynamic Chassis Control (PDCC)
improves dynamic performance further
still. Dynamic engine mounts, available
as an option for all models, provide per ­
ceptibly more precise handling – and
not just when cornering.
The 911 has a light weight composite
construction in aluminium and steel.
Used extensively and in just the right
places, lightweight aluminium improves fuel economy and dynamic performance
and helps to achieve an excellent weight
to power ratio of 4.7 kg / kW (3.5 kg / hp)

for the 911 Carrera S, for example.
The future of the sports car begins now.
For fuel consumption and CO
2 emissions, please refer to pages 143/145.

2021
Strength

| The 911 Carrera
Meetings, conferences, business lunches.
How about some leisure in between?

The 911 Carrera.
In the 21st century, we find ourselves
caught bet ween all kinds of opposites on
a daily basis: bet ween the demands of
our work life and our private life, between
the real world and virtual realit y. How can
they all be reconciled? With a strong iden ­
tit y and a sports car that has incorporated
many contradictory notions since 1963.
Sportiness and everyday practicality
are a prime example. The 911 Carrera is
equipped as standard with direct fuel
injection (DFI) and VarioCam Plus for high
power, high torque, efficient combustion
and, as a result, comparatively low fuel
consumption. Tradition and innovation blend seamlessly
together in the rear
­mounted 3.4 ­litre
flat ­six engine thanks to its downsized
capacity. Despite the reduced displace ­
ment, the engine is capable of delivering
even more power to the road than its
3.6 ­litre predecessor.
The figures speak for themselves. The
maximum power of 257 kW (350 hp) is
available at 7,400 rpm and the maxi ­
mum torque of 390 Nm is generated at
5,600 rpm. Yet, in conjunction with
Porsche Doppelkupplung (PDK), fuel con ­
sumption and CO
2 emissions have been
reduced by 16 % compared with the pre ­
vious model. Even more impressively, the
car accelerates from 0 to 62 mph in
4.8 seconds and reaches a top speed
of 179 mph.
The 911 Carrera generates powerful
forces, which are transmit ted precisely
and directly to the wheels by the 7 ­speed
manual gearbox. As with the optional PDK,
gears 1 to 6 have a sports ratio, while
7th gear has a long ratio for reduced fuel
consumption. The SPORT but ton, which
is fit ted as standard, makes it possible to
select an even more responsive engine
and transmission setup.
In terms of form and function, the single
tailpipes are especially imposing and emit a sound which is t ypically Porsche. The
19
­inch Carrera wheels are fit ted as
standard and improve driving stability
and performance.
Sports car technology as standard, in
the form of black four ­piston monobloc
aluminium fixed calipers, Porsche Stability
Management (PSM) and Bi ­Xenon head ­
lights, shows that sportiness and safety
are not mutually exclusive.
Sport, moderation, everyday practicality
and st yle. Four key themes, one unifying
concept: the 911 Carrera.
For fuel consumption and CO
2 emissions, please refer to pages 143/145.

2223
Strength

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

The 911 Carrera S.
Nothing defines us more than our heritage.
It says a lot about who we are. This is
particularly true of the 9 11 Carrera S,
which has all the characteristics you would
expect of a sports car whose origin is
in motorsport.
An elementary component of its DNA, there­
fore, 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 62 mph is completed in
just 4.5 seconds. Top speed isn’t reached
until 188 mph.
On figures alone, the 9 11 Carrera S
excels, particularly in terms of efficiency.
Fuel consumption and CO
2 emissions
have been reduced by 15 % 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 even
sport­
ier aerodynamics and the ride height low ­
ered 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 con ­
junction with the optional PDK, increase
traction and driving stability. Porsche
Dynamic Chassis Control (PDCC), the ac ­
tive roll stabilisation system, is available
as an option and improves agilit y, com ­
fort and safet y. On the subject of safet y, the brakes at
the front of the 911 Carrera S come
equipped with monobloc fixed calipers
with six, instead of four, pistons for im
­
proved braking performance and a short ­
er braking distance. Bi ­Xenon headlights
are standard and the Porsche Dynamic
Light System (PDLS) is available as an
option.
There is no doubt. The 9 11 Carrera S
knows its roots, and embraces them with
efficiency, power and sporty performance.
For fuel consumption and CO2 emissions, please refer to pages 143/145.

3839
Temperament
|
Engines
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 ­
of­the ­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 st a n d a rd . At the push of a but ton, the engine be
­
comes 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 downsized
engine capacity and increased maximum
torque are the intelli
gent basis by which
power output can be increased in an
environmentally acceptable and sustain­
able way. Fuel consumption and CO
2
emissions have been reduced by up to
16 % compared with the previous model. 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).
The same principle applies to the 3.8 ­litre
engine in the 911 Carrera S models.
There has been no change in displace ­
ment since the previous model, but
po wer output has been increased while
fuel consumption has been reduced by
up to 15 %. Weight is critical to efficiency. This is

why the engines have a light­alloy
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 and CO
2 emissions, please refer to pages 143/145.

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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 models: 257 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 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 143/145.
40 60 80
100
120 140 160 180 200 220 240 260
1500 75008000
2000 2500300035004000450050005500600065007000
1000
294 kW (400 hp)440 Nm
300
280
Power (kW)
T orque (Nm)
Engine speed (rpm)
200
280 300 320 340 360 380 400 420
220 240 260
460
44040
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.

4243
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 ficient 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 Doppelkupplung
(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 technology. The
vehicle bat tery is recharged by the alter ­
nator, 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
Not as thirsty as you might think.

Efficiency- enhancing measures.
For fuel consumption and CO2 emissions, please refer to pages 143/145.

4849
Temperament
|
Transmission
The long and winding road is where you’d like to be.
Sometimes, it pays to take the direct route.

Transmission.
The 7-speed manual gearbox.
Pure, direct, precise. Short shif t move ­
ments and an optimum transition from
one gear to the next. That ’s exactly what
you would expect of a Porsche manual
gearbox.
What you might not have expected is a
7 ­speed manual gearbox that combines
a high level of sport y performance with
an equally high level of efficiency and
offers extra comfort for longer journeys. It’s an exceptional innovation, and not
only in the sports car segment.
The design of this manual gearbox is
based in principle on that of Porsche
Doppelkupplung (PDK). Gears 1 to 6 have
a sports ratio and top speed is reached
in 6th gear. The additional 7th gear, how
­
ever, has a long ratio, which reduces
torque and helps to reduce fuel consump ­
tion. Lower engine revs at fast driving
speeds also ensure a high level of com
fort
on long stretches of road. In addition
, a gear indicator in the rev counter reminds
you which gear has been selected. The
upshift indicator in the instrument cluster
helps you actively conserve fuel.
Thanks to the elevated centre console,
the gear lever is within easy reach –

ideal for sport y gear changes.
Whether you select a sporty or comfortable
gear, the way you reach your destination
is in your own hands.
For fuel consumption and CO
2 emissions, please refer to pages 143/145.

462135
7R
5051
Porsche Doppelkupplung (PDK).
Available as an option for all 911 Carrera
models is 7­speed PDK, featuring manu ­
al and automatic modes. It facili
tates
extremely fast gear changes
with no
interruption in the flow of power, whilst at
the same time improving acceleration
and fuel efficiency. In total, PDK has seven gears at its dis
­
posal. 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.
PDK is essentially t wo gearboxes in one
and thus requires t wo clutches. This
double ­clutch arrangement provides an
Porsche Doppelkupplung (PDK)
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.The effect is instant. Driving feels even
sportier and more dynamic, and agility

is increased. Depending on the gearshift
programme (SPORT button activated
Temperament | Transmission
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. 67).
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 deceler ­
ation caused by engine braking. In this
way, optimum use is made of the vehi ­
cle’s momentum, allowing it to coast for
longer distances.
For example, you may want to slow down
from 62 mph to 49 mph in anticipation
of the change of speed limit ahead. As
soon as you release the accelerator
pedal, PDK deselects the current gear auto
matically 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. In short, driving in coasting mode makes
a real impact on fuel consumption without
any need for compromise on comfort or
sporty performance.
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.
For fuel consumption and CO2 emissions, please refer to pages 143/145.