2014 PORSCHE 911 Information Manual

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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.

ef\037cient
wild
superior
true
spontaneous
assertive
down-to-earth
T
relaxed

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.

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3839
T
emperament
| Engine
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. Camshaf t 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. Crankshaf t
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 throt tle valve
25. Oil filter
26. Electronic map -controlled thermostat
27. Vacuum pump
28. Coolant jacket
29. Crankcase breather
30. Timing chain
31. Star ter
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 100 km/ h in 4.8 seconds and a top
speed of 289
km/ h. The 911 Carrera 4
accelerates to 100 km/ h in 4.9 seconds
and has a top speed of 285
km/ h.
For fuel consumption, CO
2 emissions and efficiency class, please refer to pages 141/143.
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 100 km/ h in 4.3 seconds and
achieves a top speed of 302
km/ h.

T h e 911
Carrera 4S also completes the
0 to 100
km/ h sprint in 4.3 seconds
and boasts a top speed of 297
km/ h.
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294 kW (400 hp)440 Nm
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Power (kW)
T orque (Nm)
Engine speed (rpm)
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460
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Power (kW)
T orque (Nm)
Engine speed (rpm)
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220 240 260
460
440
257 kW (350 hp)
390 Nm

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.

4243
DFI delivers fuel directly into the combustion
chamber with millisecond precision. The
spray and cone angles of the multi -hole
injectors have been optimised for torque,
power output, fuel consumption, emissions
and efficient combustion.
With direct injection, the engine manage -
ment system regulates injection timing
individually for each cylinder as well as
the injection rate for each cylinder bank.
This improves the combustion process
and fuel economy.
This results in instant acceleration,
extremely smooth running and an
extraordinary level of tractive power,
but with a comparatively low level of
fuel consumption.

For faster heating of the cataly tic converters
after a cold start and optimum torque in
the upper load range, up to three injection
pulses take place per combustion cycle.
DFI improves the internal cooling of
the combustion chamber by having the
mixture prepared directly in the cylinder.
This allows for a higher compression
ratio, which helps to deliver more output
at the same time as enhanced engine
efficiency. Injection is regulated by the
electronic engine management system
and emissions are monitored by the
Lambda sensors.
T emperament | Engine
VarioCam Plus.
VarioCam Plus is a two- in
-one engine
concept for adjusting the intake
camshafts and switching the lift of the
intake valves.
The system first differentiates bet ween
driver inputs that typify normal,
everyday driving and those inputs
that demand maximum performance.
The electronic engine management
system then seamlessly adapts valve
operation to the prevailing conditions.
What lies between your home and Le Mans?
Advanced engineering as standard.
Direct fuel injection (DFI).
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

4647
T
emperament
| 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 shift 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,
however, has a long ratio, which reduces
torque and helps to reduce fuel consump
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tion. Lower engine revs at fast driving
speeds also ensure a high level of comfort
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 sport y or comfortable
gear, the way you reach your destination
is in your own hands.
For fuel consumption, CO
2 emissions and efficiency class, please refer to pages 141/143.