2006 PORSCHE CAYMAN fuel consumption

· 39 · · 38 ·VarioCam Plus The new Cayman and the Cayman S |
Drive
higher torque at low rpm, a flatter
torque curve, and greater top-end
power. It also brings an additional
dimension to the unique engine
sound.VarioCam Plus.
VarioCam Plus combines variable
valve timing with two-stage lift
on the inlet side. The resulting
benefits include greater power and
torque at all engine speeds, as
well as smoother running, better
fuel economy and fewer exhaust
emissions.
Essentially, the system creates
two engines out of one, switching
seamlessly between them as
driver inputs change. All operations
are centrally controlled by
the Motronic ME7.8 engine
management system. The result:
rapid acceleration and balanced
running characteristics.
The two-stage valve lift mechanism
on the inlet side incorporates
a series of electro-hydraulically
switchable tappets. Each of
the 12 tappets consists of two
concentric lifters which can be
locked together by means of a
pin when required by the engine
management system. When the
tappets are locked, the outermost
ring – which is driven by two large-
profile cams – is in direct contact
Two-stage resonance intake
manifold.
The intake manifold has a twin-flow
pipe with two-stage valve which
opens and closes at predefined
engine speeds. An additional
‘resonance’ pipe connecting the
twin plenum chambers is used
to alter the geometry within the
manifold. The resulting vibration in
the incoming air helps to maximise
cylinder charging and create the
optimum air/fuel mix. The results:
with the valve. When the pin is
removed, the innermost lifter –
operated by a smaller cam lobe –
has sole influence over the
amount of valve lift. The timing of
each valve is steplessly controlled
by means of an electro-hydraulic
rotary vane adjuster at the head
of each inlet camshaft.
To improve responsiveness when
starting from cold, VarioCam Plus
will raise the amount of lift and
retard the timing of the valves.
At medium revs and minimal load,
the valve lift is lowered and timing
advanced to help minimise fuel
consumption and emissions.
To achieve maximum power and
torque, the lift is raised and the
timing advanced.
Cayman

· 73 · · 72 ·The new Cayman and the Cayman S |
Comfort
consumption, average speed,
range till empty and audio
information.
Steering wheel.
Both Cayman models have a three-
spoke leather steering
wheel with full-size airbag as
Instruments.
A single glance is all it takes –
particularly when it comes to the
instruments. The familiar Porsche
grouping of symmetrical round
instruments forms an integral
part of the cockpit design.Above the instruments is a
specially designed shroud with
semi-transparent grille. The dials
on the new Cayman have a black
background, while those on the
Cayman S have an aluminium-
coloured finish. Both sets of
instruments feature crisp white
backlight illumination. An integral
light sensor automatically adjuststhe degree of illumination to match
the ambient light conditions.
The dials provide a continuous
overview of all key information,
including external temperature,
time, trip odometer, total odometer
and vehicle speed. You can also
view a range of additional data
from the standard on-board
computer, e.g., average fuel
access to audio, navigation and
– if fitted – telephone functions
(only in conjunction with PCM).
For a detailed overview of the
available steering wheel options,
see pages 109-113. standard. Special features include
40 mm of height and reach
adjustment. A smooth leather
finish is available as an optional
extra on the steering wheel rim
and airbag module. Alternatively,
you can specify a three-spoke
sports or three-spoke multifunction
wheel. The latter is equipped with
six integral keys offering direct
Cayman dashboard with optional equipment, e.g., leather interior package with two-tone combination, PCM

· 87 · · 86 ·The new Cayman and the Cayman S |
Comfort
zoom layers available on the map
enable a finer gradation of scale.
The time displayed in both the
instrument cluster and the PCM
terminal is synchronised with the
standard GPS time.
Extended navigation module.
Available in conjunction with PCM,
this optional expansion module
enables automatic navigation
along a previously recorded route
(reverse route navigation). It also
facilitates compass and GPS-
based navigation in regions not
covered by your navigation DVD.
Porsche Communication
Management (PCM).
PCM is an optional multimedia
control and display system
featuring radio, CD player, audio
controls, on-board computer and
GPS navigation. It can also be
combined with an optional tri-band
telephone module. Key features
include a high-resolution 5.8-inch
colour display with 16 : 9 aspect
ratio. The menu structure is easy
to navigate using a multifunction
rotary push-button control. A 12-
digit keypad is also included for
dialling outgoing calls. The system
also provides easy access to the
performance display and memory
function included with the optional
Sport Chrono Package Plus.The DVD drive used for satellite
navigation is housed in the front
luggage compartment. One of the
benefits of this arrangement is
that the MP3-compatible CD drive
in PCM can be used exclusively
for audio CDs.
On-board computer.
The standard on-board computer
provides a wide range of
information, including average
fuel consumption, average speed,
range till empty and audio data.
It can also be used to view data
from the optional Tyre Pressure
Monitoring (TPM). Information is
accessed using a control stalk on
the steering column and viewed in the central instrument display.
If combined with the optional
PCM, you can access additional
data and functions such as
average values and driver-defined
speed-limit warnings. The control
stalk for the computer is also
used to select the analogue and
digital timing functions in the
optional Sport Chrono Package
(see pages 54/55).Navigation system.
The PCM navigation system
includes an intuitive menu
structure and dedicated DVD
drive. One of the main benefits
of DVD navigation is rapid route
calculation. The wide range of
Porsche Communication Management (PCM)
Electronic logbook.
This optional addition to PCM
enables you to automatically
record on every journey the
mileage, route distance, date and
time as well as starting location
and destination. Data can be
downloaded from PCM via the
infrared port and processed on
a PC using software included
with the package. This easy-to-
use option fulfils the statutory
requirements for automatic
logbooks as specified by the
German revenue authorities.
Telephone module.
Available in conjunction with PCM,
this optional GSM telephone
module has an integral hands-free
facility. The microphone is
concealed beneath the steering
column casing and is directed
towards the driver’s position.
Functions can be accessed using
dedicated keys on the PCM
terminal, a control stalk on the
steering column, or the optional
three-spoke multifunction steering
wheel.Special features include SMS
(text) messaging as well as card-
free calls to emergency services.
The antenna is located neatly
out of sight beneath the scuttle
at the base of the windscreen.
A passive (keyless) handset
offering greater call privacy is
available as an optional extra.
CDC-4 CD autochanger.
This optional CD autochanger
has a total capacity of six CDs.
Compatible with both the
standard audio system and PCM,
it installs neatly away in a
compact niche within the front
luggage compartment. Both
standard cars include a CD
autochanger preparation.

· 89 · · 88 ·
EnvironmentThere are two possibilities when
it comes to protecting the
environment: react to regulations
or establish your own and
incorporate them within the
development process. For us,
there has only ever been one
way. With the Cayman and
Cayman S, we have followed that
path as on every Porsche before.
So while their powerful capability
is second to none, it doesn’t
come at any price. At Porsche,
the principle of high performanceextends to every area of the
car. Including its relationship
with the environment. That is our
commitment with the Cayman
and Cayman S. Why settle for
anything less?

4 catalytic converters with
4 Lambda sensors

EU4 /ULEV II-compliant

Lengthy service intervals

Modest fuel consumption

85 % recyclable (approx.)

· 90 ·
Exhaust emission control.
Four-valve cylinder heads and
VarioCam Plus ensure minimal
emissions at source. After leaving
the engine, the gases are cleaned
by a system of four catalytic
converters and four ‘Lambda’ or
oxygen sensors. Controlling it
all with optimum efficiency is
the Motronic ME7.8 engine
management system. Each bank
of cylinders has its own Lambda
circuit, enabling precision
adjustment of the air/fuel mix.
Each exhaust tract has two
Lambda sensors, one upstream
and one downstream of the
primary catalyst.* The resulting
benefits include full compliance
with both the EU4 emissions
standard and ULEV II regulations
in the United States, as well as
excellent fuel economy.
Noise.
The Cayman and Cayman S comply
with all current noise regulations
without any form of engine
encapsulation. To do that, we’ve
eliminated noise at source in
every area of each car. Engine
components are rigid, moving
parts are light, and tolerances
have been reduced to a minimum.
The result is a pure and distinctive
sound – with all the character
you’d expect from a Porsche.
Fuel system.
All fuel lines are made from robust
aluminium, while those carrying
vapours are multi-layer plastic. The
result is a significant reduction in
the evaporation of hydrocarbons.
Materials and recycling.
All structural components,
switchgear and trim are made
from fully recyclable materials.
Better still, it is highly unlikely
that they will ever need recycling
at all. Long-term durability is,
after all, one of the defining
qualities of every Porsche car.
A key objective during the
development process was all-
round weight reduction. This was
achieved using cast aluminium
alloys, synthetic materials and
high-tensile metals. Used correctly,
this blend of materials is both
stronger and lighter than
conventional
steel. As well as
reducing fuel consumption, it
offers positive environmental
benefits.
Approximately 85 % of all com-
ponents can already be recycled
using today’s technology. This
proportion is set to increase as
* Not featured in markets with leaded fuel.The new Cayman and the Cayman S |
Environment
new thermal methods are
introduced. To simplify recycling,
all synthetic components are
clearly labelled in accordance
with the relevant standards.
Both Cayman models are entirely
free of CFCs and components
manufactured with the aid of
these chemicals. Water-based
paints are used throughout each
car, thereby reducing the need
for chemical solvents during the
production process.
Servicing.
Longer service intervals are not
only more convenient for you, they
are also better for the environment.
With the new Cayman and
Cayman S, we have achieved
very modest servicing
requirements: engine oil every
20,000 miles (or two years),
oil filter every 20,000 miles, air
filter every 40,000 miles, spark
plugs every 60,000 miles (or
four years), and brake fluid every
two years.
In addition to the obvious
environmental benefits, the
advantage for you is two-fold: a
lower cost of ownership throughout
the life of the car, and more time
spent on the road. Based on
mileage alone, the new Cayman
models require just three stops
for servicing every 60,000 miles,
or one service every two years.
· 91 ·
There’s a world of driving pleasure to explore.
It needn’t cost the earth.
Cayman

· 122 ·
Technical data
Cayman Cayman S
Engine
TypeBoxer Boxer
InstallationMid-mounted Mid-mounted
Cylinders66
Displacement2,687 cm33,387 cm3
Max. power (DIN) 180 kW (245 bhp) 217 kW (295 bhp)
at rpm6,500 6,250
Max. torque273 Nm 340 Nm
at rpm4,600 – 6,000 4,400 – 6,000
Compression ratio11.3 :1 11.1:1
Transmission
LayoutRear-wheel drive Rear-wheel drive
Manual gearbox 5-speed 6-speed
Tiptronic S (optional)5-speed 5-speed
Chassis
Front axleMcPherson-strut suspension McPherson-strut suspension
Rear axleMcPherson-strut suspension McPherson-strut suspension
SteeringVariable steering ratio, Variable steering ratio,
power-assisted (hydraulic) power-assisted (hydraulic)
Turning circle11. 1 m 11. 1 m
Brakes4-piston monobloc aluminium fixed 4-piston monobloc aluminium fixed
calipers front and rear, discs calipers front and rear, discs
internally vented and cross-drilled internally vented and cross-drilled
Vehicle stability systemPSM (with ABS 8.0) PSM (with ABS 8.0)
Wheels Front: 6.5J x 17 Front: 8J x 18
Rear: 8J x 17 Rear: 9J x 18
Tyres Front: 205/55 ZR 17 Front: 235/40 ZR 18
Rear: 235/50 ZR 17 Rear: 265/40 ZR 18
· 123 ·The new Cayman and the Cayman S |
Technical data
Cayman Cayman S
WeightsManual gearbox/ Tiptronic S Manual gearbox/ Tiptronic S
Unladen weight (DIN)1,300 kg/1,360 kg 1,350 kg/1,390 kg
Unladen weight (EC)* 1,375 kg/1,435 kg 1,425 kg/1,465 kg
Permissible gross weight1,620 kg/1,665 kg 1,630 kg/1,670 kg
Performance Manual gearbox/ Tiptronic S Manual gearbox/ Tiptronic S
Top speed258 km / h (160 mph)/ 275 km / h (171 mph)/
253 km / h (157 mph) 267 km / h (166 mph)
0 –100 km / h (0 – 62 mph) 6.1 secs/7.0 secs 5.4 secs/6.1 secs
Flexibility 80 –120 km / h
(50 –75 mph)6.9 secs/7.2 secs (in 4th gear) 6.6 secs/6.3 secs (in 5th/4th gear)
Flexibility 100 – 200 km / h
(62 –124 mph) 21.5 secs/22.1 secs (in 4th gear)18.0 secs/17.8 secs (in 5th/4th gear)
Fuel consumption/emissionsManual gearbox/ Tiptronic S Manual gearbox/ Tiptronic S
In accordance with 80 / 1268 /EC as valid at time of going to press
Urban in l / 100 km (mpg)13.8 (20.5)/14.9 (19.0) 15.3 (18.5)/16.3 (17.3)
Extra urban in l / 100 km (mpg)6.8 (41.5)/7.7 (36.7) 7.8 (36.2)/7.9 (35.8)
Combined in l / 100 km (mpg)9.3 (30.4)/10.1 (28.0) 10.6 (26.6)/11.0 (25.7)
CO2emissions (g /km)222/242 254/262
Dimensions /aerodynamics
Length4,341 mm 4,341 mm
Width1,801 mm 1,801 mm
Height1,305 mm 1,305 mm
Wheelbase2,415 mm 2,415 mm
Luggage compartment150 litres/260 litres 150 litres/260 litres
volume front /rear
Tank capacity (refill volume)64 litres 64 litres
Drag coefficient0.29/0.29 0.29/0.30
* The unladen weight (EC) complies with the relevant EC Directives and is valid for standard specification vehicles only.
Some optional equipment can increase this weight. The figure specified above includes 68 kg representing the driver and 7 kg for luggage.