2009 PORSCHE 911 transmission

Porsche Doppelkupplung (PDK).
Derived from motorsport, PDK,
which is standard for 911 Turbo S
models and optional for 911 Turbo
models, achieves one thing
above all else: it provides the
perfect balance bet ween uncom -
promisingly dynamic performance
and exceptional levels of comfort.
It ’s purely about point of view.
The driver’s especially.
PDK, with both a manual and an
automatic mode, enables
extremely fast gear changes with
no interruption in the power flow.
For improved acceleration and significantly lower fuel consump
-
tion – without having to dispense
with the advantages of an auto -
matic.
The driver experiences a sportier,
even more dynamic drive with
more agilit y. Depending on driving
st yle, gear changes range from
exceptionally comfortable to
exceptionally sport y.
Manual gear changes are per -
formed using PDK’s ergono-
mically
designed gear lever or
alternatively, on the 911 Turbo
models, using the switches on
the three-spoke sports steering
wheel: nudge forwards to change
up, pull back to change down.
Fit ted as standard on 911 Turbo S
models and available as an option
for 911 Turbo models is the three-
spoke sports steering wheel
with gearshif t paddles, which is
also capable of operating PDK.
With its motorsport-derived gear -
shif t logic, you pull the right-hand
paddle to shift up and pull the
left-hand paddle to shift down.
PDK has been specially tuned
to the characteristics of the
911
Turbo models and the new
911 Turbo S models. It has seven
gears at its disposal. Gears 1 to 6
have a sports ratio, with the top
speed being reached in 6th gear.
The 7th gear has a long ratio and
helps to reduce fuel consumption
even further.
PDK is essentially t wo half-
gearboxes in one and thus
requires t wo clutches –
designed as a double wet
clutch transmission.
The principle is simple: the
transmission ensures that
the extraordinary engine
power isn’t manifested as a
blaze of noise and smoke.
Unless that’s what you really
want.
Calm. Storm. Which way
round is up to you.
Transmission.
Porsche Doppelkupplung (PDK) gear selector Power flow in 1st gear
Power flow in 2nd gear
Performance | Transmission
· 42 ·· 43 ·

This double clutch provides
an alternating, non positive
connection bet ween the t wo
half-gear
boxes and the engine
by means of t wo separate
input shafts
(input shaf t 1 is
nested inside the hollowed- out
input shaft 2).
The flow of power from the
engine is only ever 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, a conven -
tional shift no longer takes place.
Instead, one clutch simply opens
and the other closes at the same
time. Gear changes can therefore
take place within milliseconds.
Clutch 1 controls the first half-
gearbox, which contains the odd
gears (1, 3, 5, 7) and reverse.
Clutch 2 controls the second,
which contains the even gears
(2, 4, 6).
The Sport Chrono Package Turbo
with dynamic engine mount system (standard on 911 Turbo S
models) provides PDK with t wo
additional functions, ‘Launch

Control’ and ‘motor sport- derived
gearshif t strategy’ (page 60).
PDK – sport y, comfortable and
ef ficient. Characteristics that have
been given some thought else -
where too: in the specification for
the 911 Turbo model range.
Three-spoke sports steering
wheel with gearshift switches.
If combined with the optional
PDK, the three-spoke sports
steering wheel (standard on
911 Turbo and 911 Turbo Cabriolet)
has t wo ergonomic switches.
One press with the thumb and
PDK shif ts up. One pull with the
index finger and PDK shifts down.
Either the right or lef t hand can
be used.
The steering wheel rim and airbag
module are covered in smooth
leather, whilst the spoke covers
are painted in Black.
When combined with the Sport
Chrono Package Turbo with
dynamic engine mount system,
there is an additional display
above the airbag module. It tells
you whether the SPORT, SPORT
PLUS and Launch Control func -
tions are activated.
On request, the three-spoke
sports steering wheel with gear -
shift switches for the 911 Turbo
and 911 Turbo S models is also
available as a multifunction steer -
ing wheel (in leather, Aluminium
Look, carbon or macassar).
Steering wheel heating is avail -
able as an option.
Three-spoke sports steering
wheel with gearshift paddles.
The three-spoke sports steering
wheel with gearshif t paddles
(standard on 911 Turbo S models,
optional for 911 Turbo models)
allows you to make motorsport-
st yle gear changes. The paddles
are made from a strong alloy and
are ergonomically located behind the right and lef t steering wheel
spokes. Pull the right-hand paddle
and PDK shifts up. Pull the

left-hand paddle and the PDK
shifts down.
Visually, the steering wheel is
distinguished by its distinctive
high-qualit y t win-spoke design
and silver-coloured galvanised
spoke cover. The airbag module
is finished in the same colour as
the steering wheel rim.
This steering wheel also has an
additional display when combined
with the Sport Chrono Package
Turbo with dynamic engine mount
system. Located in the lef t and
right-hand steering wheel spokes,
it tells you whether SPORT,
SPORT PLUS and Launch Control
are activated.
Another feature reminiscent of
the world of motorsport is the top
centre marking on the steering
wheel rim.
Three -spoke sports steering wheel with gearshif t switches
Three -spoke sports steering wheel with gearshif t paddles
Performance | Transmission
· 44 ·· 45 ·

perfect ratio spread enabling a
smooth transition through the
gears. The gear lever throw is
short and precise, with only
minimal effort required. Thanks
to a dual-mass fly wheel, this

performance is achieved without
any compromise in comfort.
The linkage provides a direct
connection with the gearbox
unit while insulating the lever
from engine vibration.
One final detail – the gear

lever design is exclusive to the
911 Turbo models.
Six-speed manual gearbox.
The six-speed manual gearbox,
available as standard exclusively
for the 911 Turbo models, is
specifically adapted to the unique
characteristics and extremely
high torque of the engine in these
vehicles. Designed primarily
for sports driving, it features a
Hill-start assist.
Hill-start assist comes as standard
for both manual and PDK trans -
missions. It assists the driver in
making a smooth and roll-free
start on an incline.
After braking, the system auto-
matically detects whether the
of manual models), the brake
pressure is reduced once suffi -
cient revs have been generated.
Gear lever
vehicle has come to a stop on a
hill. When the driver releases the
footbrake with the car still in gear,
the brake pressure is retained on
all four wheels for around t wo
more seconds. This temporarily
prevents the vehicle from rolling
backwards. When the driver
accelerates (or accelerates and
releases the clutch in the case
Performance | Transmission
· 46 ·· 47 ·

Porsche Traction Management
(P TM).
Genuine high per formance calls
for more than just a power ful
engine. It also requires an ef fec-
tive means of delivering that
power to the road. One solution
to this is all -wheel drive. An
even bet ter one is the further-
enhanced Porsche Traction
Management (PTM), consisting

of active all -wheel drive with
electronically controlled multi -
plate clutch and including an
automatic brake differential (ABD)
and anti -slip regulation (ASR).
PTM improves vehicle dynamics
even further whilst ensuring that
none of the customar y traction
and driving safet y is lost. The
result is an even more enjoyable
sport y ride combined with
exceptional stability.
Torque is distributed actively
– and exceptionally quickly –
via an electronically controlled
multi-plate clutch. The advantage is that, through
continuous monitoring of the

driving conditions, a more imme -
diate response to changing
scenarios can be achieved. The
status is monitored with the aid
of on-board sensors. These are
used to measure a range of

values, including the rotational
speed of all four wheels, the
lateral and longitudinal accelera -
tion of the car, and the current
steering angle. The sensor data
is analysed in ‘real time’, enabling
immediate adjustments in front-
end drive torque as and when
required. If, for example, the rear
wheels lose traction under
acceleration, a greater proportion
of drive torque is automatically
transmit ted to the front axle. At
the same time, ASR prevents the
rear wheels from spinning by
adapting the engine power. When
cornering, the system controls
drive to the front wheels in order
to maintain optimum lateral grip.
On variable-grip surfaces, traction
is enhanced using the automatic
brake dif ferential (ABD). If a wheel threatens to spin, PTM brakes it
via ABD and in doing so transfers
more drive torque to the other
wheel on the same axle.
Assisting PTM is Porsche Stabilit y
Management (PSM). Combined,
these systems provide excellent
torque distribution – and there
-
fore outstanding performance –
in all driving conditions.
The benefits of PTM are most
evident in wet and snow y
conditions. In these conditions,
the 911 Turbo models of fer
breathtaking acceleration. In short, PTM provides greater
active safet y and greater

performance, combined with
exemplary balance.
Performance | Transmission
Active all -wheel drive
· 48 ·· 49 ·

Porsche Torque Vectoring (PTV).
Porsche Torque Vectoring (stand-
ard on 911 Turbo S models,
optional for 911 Turbo models), with variable torque distribution
to the rear wheels and a mechan
-
ical limited-slip rear differential,
is a system that actively enhances
vehicle dynamics and stabilit y. As a function of steering angle
and steering speed, accelerator
pedal position, yaw rate and

vehicle speed, PT V is able to
improve steering response and steering precision significantly

by specific braking of the right or
left rear wheel.
In simple terms, this means that
when the car is driven assertively
into a corner, moderate brake
pressure is applied to the inside
rear wheel. Consequently, excess
drive force, which varies depend -
ing on the braking force applied
to the inside rear wheel, can be
distributed to the outside rear
wheel, and a rotational pulse (yaw
movement) is generated around
the vehicle’s vertical axis. This
assists the steering input and
results in a more assured steering
manoeuvre.
At low and medium vehicle
speeds, the system significantly
increases agilit y and steering
precision, whilst at high speeds,
and in combination with the
mechanical limited-slip differential,
it additionally ensures greater
driving stabilit y. The system, combined with

Porsche Traction Management
(PTM) and Porsche Stabilit y
Management (PSM), also puts

its stabilising ef fect to good use
on road surfaces with varying
levels of grip and on snow and ice.
As PT V increases the car’s
dynamic performance, the system
remains active when driving
on the racetrack, even if PSM
has been deactivated.
Where
efficien cy is concerned,
this
enhanced performance and
stabilit y are achieved without the
need for any additional compo -
nents, apart from the mechanical
limited-slip rear differential. In
other words, a more enjoyable
drive with no additional weight.
Performance | Transmission
· 50 ·· 51 ·

Sport Chrono Package Turbo
with dynamic engine mount
system.
The Sport Chrono Package Turbo
with dynamic engine mount
system is standard on 911 Turbo S
models and available as an
option for 911 Turbo models.

This integrated system provides
simultaneous enhancement for
engine, chassis and transmission.
Key features include a digital
and analogue stopwatch on the
dashboard, a performance dis -
play, a personal memor y function
in the Porsche Communication
Management (PCM), the SPORT
but ton and – in combination with
PDK – the SPORT PLUS but ton,
and an additional display on the
steering wheel which informs the
driver if the SPORT but tons and Launch Control have been acti
-
vated. The 911 Turbo models
additionally of fer the ‘overboost ’
function. This is how it works:
When ‘Sport ’ mode is selected,
the engine management system
creates a much more aggressive
response to pedal inputs. To do
this, it implements an alternative
throt tle map which relates the
pedal position in the foot well to
a wider angle of opening in the
throt tle body. In higher gears, it
uses a hard rev- limiter to protect
the engine under power.
In the 911 Turbo models, under
full acceleration, the maximum
boost pressure in the lower and
medium speed ranges is now
temporarily increased by approx -
imately 0.2 bar. As a result,
engine torque is boosted by 50 Nm to a maximum of 700 Nm for a
limited period. (The 911 Turbo S
models are configured to operate
with a higher boost pressure level,

which means that their maximum
torque is always 700 Nm.)
In addition to the engine, ‘Sport ’
mode is enabled in the standard
Porsche Active Suspension
Management (PASM) suspension.
The dampers become firmer,
enabling faster turn - in as well as
bet ter contact with the road.
In automatic mode of PDK,
the basic gearshif t pat tern is
switched to high-performance
mode. The gear change action is
virtually instantaneous, while the
shift points are timed for maxi -
mum acceleration. Lif t of f the
throt tle – even at high revs – and
the system automatically shif ts
down to apply engine braking. In
manual shif t mode, gear chang -
ing is faster and more dynamic.
Porsche Stabilit y Management
(PSM) is also adapted, with the
intervention threshold raised. As
a result, the car has a more natu -
ral response to lateral and longi -
tudinal forces. Cornering agilit y
is greatly enhanced, when both braking to turn in and applying
power on exit – particularly

in low-speed bends. For even
greater driving pleasure.
For maximum manoeuvrabilit y,
PSM can be partially disabled
while the car is still in ‘Sport ’
mode. PSM simply monitors the
forces acting on the car and
will only intervene in the most
critical scenarios, e.g. when ABS
assistance is required on both
front wheels.
In conjunction with PDK (standard
on 911 Turbo S models), the
Sport Chrono Package Turbo with
dynamic engine mount system
has t wo additional functions that can be activated via the SPORT
PLUS but ton, for a sport y drive
that borders on a motorsport
experience.
The first function is ‘Launch
Control’, which, for example
when per forming laps, helps you
achieve optimum acceleration
from a standing start, a racing
start in other words.
The function works like this:
press the SPORT PLUS but ton
when the transmission is in ‘D’
or ‘M’. Then, with your lef t foot,
press the brake pedal and accel -
erate fully with the right foot.
The car recognises ‘Launch’ mode
from the accelerator kickdown action and adjusts the engine
speed to the optimum level,
which is around 5,000 rpm. At
the same time, boost pressure
is increased to approximately

0.5 bar, engine torque is
increased and the clutch is
applied lightly. ‘Launch Control’
now appears in the steering
wheel display. Now release the
brake as quickly as you can –
and feel the acceleration power
unleashed to the road.
Steering wheel display with PDK and Sport Chrono Package Turbo
Performance | Chassis
· 58 ·· 59 ·

equipment packages. Detailed
information can be found on
the following pages and in the
separate price list.
To make your 911 Turbo or
911 Turbo S model even more of
an individual statement, please
ask about the Porsche Exclusive
factory-fitted modifications.
You can also continue to enhance
your car with Porsche Tequipment.
Numerous examples can be
found in the respective
brochures. For more information,
please consult your Porsche

Centre.
Then comes the moment when
you take delivery of your dream
car. Where bet ter to do it than
at the place where the success
story began, in Zuf fenhausen?
For full details about the factory
collection option, please consult
the price list.
Personalisation options and
factory collection.
Is there any thing bet ter than the
911 Turbo concept? Of course
there is. Your interpretation of
that concept. What bet ter way to
complement this captivating
sportscar than by using the power
of your imagination?
To enhance the individualit y of
your car – both inside and out –
you can choose from a range of
individual items of equipment and
911 Turbo Cabriolet with interior in t wo -tone combination (Black and Stone Grey) 911 Turbo Cabriolet with hardtop 911 Turbo with Aerokit Turbo and 19 - inch RS Spyder wheels
The vehicles pictured in the chapter on personalisation may include additional options not featured in this catalogue.
For information on these options, please consult your Porsche Centre.
For information on the options featured in this catalogue, please refer to the price list. – not available
I number/extra - cost option• standard equipmentw no - cost option
Personality | Personalisation
9 11 T u r b o
911 Turbo Cabriolet
9 11 T u r b o S
911 Turbo S CabrioletI no. Page
Option
Engine, transmission and chassis.
• Porsche Doppelkupplung (PDK)•• ••250 42
•
Porsche Ceramic Composite Brake (PCCB)
•• ••450 68
•
Porsche Torque Vectoring (PTV)
•• ••220 50
•
Sport Chrono Package Turbo with dynamic engine mount system
•• ••640 58
•
Wheel centres with full- colour Porsche Crest
•• w
w446
•
19 -inch RS Spyder wheels with central locking device
•• ••422 54
• 19-inch 911 Turbo II wheels
• •w
w421 54
Personality | Personalisation
Exterior.
•
Special colours••••Code 93
• Individual colours
••••Code
•
Dynamic cornering lights
•• ••603 65
• Deletion of model designation
w www498
•
Park Assist (parking aid at rear)
• •••635 85
•
Aerokit Turbo
• –•–XAF
99
•
Rear wiper
• –•–425
•
Windscreen with grey top tint
• •••567
•
Electric slide/tilt sunroof
• –•–650
•
Hardtop
–• –•550
25, 99
•
Roof transport system
• –•–549
84
· 97 ·· 98 ·· 99 ·

Technical data
911 Turbo / 911 Turbo Cabriolet
Engine
C y linders 6
Displacement 3,800 cm
3
Power (DIN)
at368 kW (500
hp)
6,000 – 6,500 rpm
Max. torque at 650 Nm at 1,950 – 5,000 rpm
with ‘overboost ’ 700 Nm at 2,100 – 4,000 rpm
Compression ratio 9 . 8 : 1
Transmission
Layout All-wheel drive with electronically controlled multi-plate clutch
6-speed manual gearbox Standard
7-speed PDK Optional
Chassis
Front axleMcPherson strut suspension
Rear axle LSA multi - link suspension
Steering Variable steering ratio, power-assisted (hydraulic)
Turning circle 10.9 m
Brakes 6 - piston monobloc aluminium fixed calipers at front, 4 - piston monobloc
aluminium fixed calipers at rear, discs internally vented and cross- drilled
Vehicle stabilit y system Porsche Stability Management (PSM)
Anti - lock braking system ABS 8.0
Wheels Front
Rear 8.5 J x 19 ET 56
11 J x 19 ET 51
Tyres Front
Rear 235/35 ZR 19
305/30 ZR 19
Technical data
911 Turbo 911 Turbo Cabriolet
Weights
Manual gearbox/PDK Manual gearbox / PDK
Unladen weight (DIN) 1,570 k g / 1,59 5 k g 1,6 4 5 k g / 1,670 k g
Unladen weight (EC)* 1,6 4 5 k g / 1,670 k g 1,72 0 k g / 1,74 5 k g
Permissible gross weight 1,93 5 k g / 1,9 6 0 k g 1,995 kg /2,020 kg
PerformanceManual gearbox/PDK Manual gearbox/PDK
Top speed km/ h (mph) 312 (19 4) / 312 (19 4)312 (194)/312 (194)
0 –100 km/ h (0 – 62 mph) 3.7 secs/3.6 secs (3.4 secs
**)3.8 secs/3.7 secs (3.5 secs**)
0 –160 km/ h (0 –99 mph) 7.8 secs/7.7 secs (7.4 secs
**)8.1 secs/8.0 secs (7.7 secs**)
0 –200 km/ h (0 –124 mph) 11.9 secs/11.6 secs (11.3 secs
**) 12.4 secs/12.1 secs (11.8 secs**)
Flexibilit y 80 –120 km/ h (50 –75 mph)
in 5th gear
Acceleration 80 –120 km/ h (50 –75 mph) 3.7
secs/–
–/2.1 secs 3.8
secs/–
–/2.2 secs
Fuel consumption/emissions***Manual gearbox/PDK Manual gearbox/PDK
Urban in l/100 km (mpg) 16.5 (17.1)/16.5 (17.1)16.7 (16.9)/16.7 (16.9)
Extra urban in l/100 km (mpg) 8.3 (34.0)/8 1 (34.9)8.4 (33.6)/8.2 (34.4)
Combined in l/100 km (mpg) 11. 6 ( 2 4 . 4 ) / 11. 4 ( 2 4 . 8 )11.7 (24.1)/11.5 (24.6)
CO
2 emissions g/km 272/268275/270
Dimensions/aerodynamics
Length 4,450 mm4,450 mm
Width (incl. exterior mirrors) 1,852 mm (1,952 mm)1,852 mm (1,952 mm)
Height 1,300 mm1,300 mm
Wheelbase 2,350 mm2,350 mm
Luggage compartment volume ( VDA) 10 5 l i t res10 5 l i t res
Tank capacity 67 litres67 litres
Drag coef ficient c
w = 0.31cw = 0.32
*** Data determined in the NEDC (New European Driving Cycle) in accordance with the Euro 5 (715/2007/ EC and 692/2008/ EC) measurement
method. The figures do not refer to an individual vehicle nor do they constitute part of the of fer. They are intended solely as a means of
comparing dif ferent t ypes of vehicle. You can obtain further information about individual vehicles from your Porsche Centre. Fuel consump -
tion calculated for vehicles with standard specification only. Optional equipment may af fect fuel consumption and per formance.
Some of the vehicles illustrated in this brochure are fit ted with optional equipment which is available at additional cost.

All information regarding supplied equipment, appearance, per formance, dimensions, weight, fuel consumption and
running costs is correct to the best of our knowledge at the time of going to press. Porsche reserves the right to alter
specifications and other product information without prior notice.* Weight is calculated in accordance with the relevant EC Directives and is valid for vehicles with standard specification only.
Optional equipment increases this figure. The figure given includes 68 kg for the driver and 7 kg for luggage.
** Figures for PDK include the optional Sport Chrono Package Turbo with SPORT PLUS but ton selected.
· 110 ·· 111 ·