2010 PORSCHE CAYMAN S fuel consumption

Cayman | Drive
VarioCam Plus
To improve throt tle response
during the warm -up phase,
VarioCam Plus selects high valve
lif ts with retarded valve timing.
In the middle and low load ranges,
low valve lif ts with advanced
timing reduce fuel consumption
and exhaust emissions. High valve
lif ts generate high torque and
maximum output.Two-stage resonance
intake manifold.
The intake manifold with
double-flow distributor pipe has
an adjustable flap that closes and
opens at defined engine speeds.
As a result of a t wo -stage
resonance ef fect, the air mass in
the intake manifold begins to
oscillate, which in turn generates
a turbocharging ef fect and
optimises induction. These t wo
ef fects combine to produce
higher torque at low engine
speeds, a flat ter torque curve and
increased power output at high
engine speeds, while the acoustic
properties of the system are
second to none. A sound that is
typically Porsche.
VarioCam Plus.
VarioCam Plus combines variable
valve timing with t wo -stage lift
on the inlet side. This results in
smoother running, bet ter fuel
economy and lower exhaust

emissions. As well as greater top-
end power and low- end torque. This two-in-one engine concept
seamlessly adapts in response

to driver input. The result: instant
acceleration and extremely
smooth running.
The variation in intake timing
is steplessly controlled by means
of an electrohydraulic rotary
vane adjuster at the head of the
corresponding camshaf t.
4243

If you want to get straight to the point,
you don’t take any detours.
Transmission.
Cayman S
This double clutch provides an
alternating, non-positive connection
bet ween the t wo half gearboxes
and the engine by means of t wo
separate input shafts (input shaft
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 conventional shif t 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).
Porsche Doppelkupplung (PDK).
The optional Porsche Doppel -
kupplung (PDK), with both manual
gearshif t and an automatic mode,
enables smooth gear changes
with no interruption in the flow of
power. This results in significantly
faster acceleration and lower
fuel consumption, without having
to sacrifice the ease of automatic
transmission. In total, PDK has seven gears

at its disposal. Gears 1 to 6 have
a sports ratio and top speed is
reached in 6th gear. The 7th gear
has a long ratio and helps to
reduce fuel consumption even
f u rt h e r.
PDK is essentially t wo half gear -
boxes in one and thus requires
t wo clutches – designed as a
double wet clutch transmission.
Cayman | Drive
4849

Multi - plate clutch 1
Multi - plate clutch 2
Semi -gearbox 2
(2nd, 4th, 6th gear)
Semi -gearbox 1
(1st, 3rd, 5th, 7th, R gear)
Differential



P DK function diagram
is established, and power is
transmit ted to the wheels.
The gear which is engaged is
displayed on the instrument
cluster. Depending on the
gearshif t programme, the gear
change is optimised for comfort
or for sport y handling and takes
place in a mat ter of milliseconds.
The advantages over a fully
manual transmission are very PDK is enhanced by the ‘Launch
Control’ and ‘motorsport- derived
gearshift strategy’ functions (p. 62).
In essence, PDK combines
sportiness with ef ficiency and
comfort. What does all this
mean for you? Exactly what you
would expect: uninterrupted
driving pleasure.
Porsche Doppelkupplung (PDK)
in detail.
The crankshaf t transmits engine
torque to the dual-mass fly wheel
which is then channelled through
the clutch housing and onto the
multi-plate clutches, or to be more
precise, the outer disc carrier.
Under oil pressure, clutch 1 closes
and forms a frictional connection rapid gearshif ts with no
interruption in the flow of power,
which result in a considerably
faster rate of acceleration for the
same rate of fuel consumption.
The advantage over a fully
automatic transmission is the

perceptible increase in driving
dynamics – with a similar level of
comfort, and a distinct reduction
in fuel consumption.
with input shaft 1. The torque is
now transmit ted through the
dif ferential to the rear axle.
At this stage, PDK has already
preselected the next gear.
Engine torque is already acting
on the other outer disc carrier
and, in response to a gear change
signal, the overlap shift is

initiated, i.e. as clutch 1 opens,
clutch 2 closes. The non-positive
connection with input shaf t 2 The compact dimensions of the
gearbox reduce rotational masses
which means that the engine
response is more direct and the
system is more light weight.
This, along with the long-ratio 7th
gear, helps to achieve reduced
fuel consumption and emission
figures comparable with those
of a manual gearbox. With the
optional Sport Chrono Package,
Cayman | Drive
50
46
2
1
R
7 3
5
51
4
6
2
R1
3
7
5

Cayman S dashboard with optional equipment, including PCM, cordless handset, Tyre Pressure Monitoring (TPM), Sport Chrono Package Plus and PDK
Doppel
kupplung (PDK), as well as
the selected gear. The dial on the
left contains the analogue speed -
ometer with digital trip meter and
total distance display. The design
and legibilit y of the dials are also
enhanced by the white backlight
illumination. of this steering wheel is of fered

as an option. Also available as an
option is the three-spoke sports
steering wheel with gearshift
paddles (p. 52). For extra comfort
on those cold days, steering
wheel heating is also available

on
request for all steering wheels
(steering wheel heating available
only in conjunction with heated
seats).
Instruments.
Each black circular dial in the
instrument cluster – aluminium-
coloured in the Cayman S model
– provides important information
at a glance. In the centre is the
analogue rev counter with digital
speedometer and a customisable
display of key data from the
Steering wheels.
The Cayman models feature as
standard a three-spoke sports
steering wheel with full-size airbag.
The steering wheel is adjustable
for height and reach and the
rim is in smooth -finish leather.
As an option, you can specif y a
three-spoke multifunction steering
wheel in leather with integrated
but tons for the most essential
standard on -board computer.

Additional data, such as average
fuel consumption, fuel range
or the data of the optional TPM
can be shown as desired.
The right-hand dial displays a
range of information, including
the outside temperature and shif t
pat tern of the optional Porsche audio and, where applicable,

navigation and telephone functions.
Alternatively, the multifunction
steering wheel is available in
smooth -finish leather, Aluminium
Look, carbon or macassar wood.
Fit ted as standard in conjunction
with Porsche Doppelkupplung
(PDK) is the three-spoke sports
steering wheel with gearshift
switches. A multifunction version
Cayman | Comfort
8081

Top marks for cleanliness.
1) Not in markets with leaded fuel.
In short, the Cayman is not only
extremely sport y, it is also very
clean.
This at tribute is achieved by
means of a t wo -stage cascade-
t ype cataly tic converter
which comprises t wo monolith
substrates on each of the t win
exhaust tracts. These specially
coated substrates contain
ultra-fine honeycomb channels in
which pollutants are converted
as exhaust gas passes through.
The stereo Lambda control
circuitry controls and monitors
each cylinder bank separately,
while another Lambda sensor
on each cylinder bank monitors
pollutant conversion in the respec -
tive cataly tic converter (p. 44).
1)
In an era of intensif ying debate
about global climate change and
CO
2 emissions, every automotive
manufacturer is asking itself
what it has to of fer in terms
of environmental protection. Our
answer has long been the same:
maximum ef ficiency.
Over the last 15 years, Porsche
has managed to reduce the
fuel consumption of its vehicles
by an average of 1.7 % each year.
Improvements in fuel economy
also have a beneficial impact
on CO
2 emissions. In relation to
power output (g / km per hp),
Porsche is already among those
manufacturers achieving the
lowest CO
2 emissions. This has
been achieved through an ef ficient
drive concept (DFI), light weight
construction, optimum aerody -
namics and low rolling resistance. This high level of environmental
responsibilit y is clearly demon
-
strated by our approach to
environmental management at the
Porsche development centre in
Weissach. Here, all technological
developments are carried out
with environmental protection in
mind. The goal? Pure perform -
ance – but not at the expense of
the environment. A goal achieved
by the Cayman models.
Exhaust emission control.
Both engines comply with stringent
emission standards, including Euro 5
in Europe and LEV II/ ULEV in
the USA. Vehicles manufactured
by Porsche demonstrate that even
high -performance sportscars
can achieve moderate emission
values in their respective category.
Cayman | Environment
100 101

Technical data
CaymanCayman S
Weights
Manual/ PDK Manual/ PDK
Unladen weight (DIN) 1, 3 3 0 k g / 1, 3 6 0 k g 1, 3 5 0 k g / 1, 375 k g
Unladen weight (EC)
1)1,4 0 5 k g / 1,4 3 5 k g 1,425 k g / 1,4 5 0 k g
Permissible gross weight 1,6 3 5 k g / 1,670 k g 1,6 4 5 k g / 1,675 k g
PerformanceManual/PDK (SPORT PLUS)2)Manual/PDK (SPORT PLUS)2)
Top speed km/ h (mph) 2 6 5 (16 5) / 2 6 3 (16 3) 27 7 ( 17 2 ) / 27 5 ( 17 1)
0 –100 km/ h (0 – 62 mph) 5.8 secs/5.7 secs (5.5 secs)
2)5.2 secs/5.1 secs (4.9 secs)2)
0 –160 km/ h (0 –99 mph) 13.4 secs/13.2 secs (12.9 secs)2)11.4 secs/11.2 secs (10.9 secs)2)
Flexibilit y
80 –120 km/ h (50 –75 mph) in 5th gear
In -gear acceleration
80 –120 km/ h (50 –75 mph) 7.6 secs/–

–/ 3.7 s e c s 6.5 secs/–

–/3.1 secs
Fuel consumption/emissions3)Manual/ PDK Manual/ PDK
Urban in l/100 km (mpg) 13.8 (20.5)/13.6 (20.8) 14.4 (19.6)/14.1 (20.0)
Extra urban in l/100 km (mpg) 6.9 (40.9)/6.5 (43.5) 7.2 (39.2)/6.6 (42.8)
Combined in l/100 km (mpg) 9.4 (30.1)/9.1 (31.0) 9.8 (28.8)/9.4 (30.1)
CO
2 emissions in g / km 221/214223/221
Dimensions/aerodynamics
Length 4,347 mm4,347 mm
Width (including exterior mirrors) 1,801 mm (1,952 mm)1,801 mm (1,952 mm)
Height 1,304 mm1,306 mm
Wheelbase 2,415 mm2,415 mm
Luggage compartment volume ( VDA)
front/rear 150 litres/260 litres
150 litres/260 litres
Tank capacit y (refill volume) 64 litres64 litres
Drag coef ficient 0.29/0.290.29/0.30
Technical data
CaymanCayman S
Engine
Ty p e Horizontally opposed cylinder Horizontally opposed cylinder
Installation Mid - mounted Mid - mounted
Cylinders 6 6
Displacement 2,893 cm
33,436 cm3
Max. power (DIN)
at rpm 195 kW (265
hp)
7, 2 0 0 r p m 235 kW (320
hp)
7, 2 0 0 r p m
Max. torque
at rpm 300 Nm
4,400–6,000 rpm 370 Nm
4,75 0 r p m
Compression ratio 11.5 : 1 12.5 : 1
Transmission
Layout Rear-wheel drive Rear-wheel drive
Manual gearbox 6-speed 6-speed
PDK (optional) 7-speed 7-speed
Chassis
Front axle Light weight spring strut suspension Lightweight spring strut suspension
Rear axle Light weight spring strut suspension Lightweight spring strut suspension
Steering Power-assisted (hydraulic), with
variable steering ratio Power-assisted (hydraulic), with

variable steering ratio
Turning circle 11. 1 m 11. 1 m
Brakes Four-piston aluminium monobloc
fixed calipers front and rear,
internally vented and cross-drilled discs Four-piston aluminium monobloc

fixed calipers front and rear,
internally vented and cross-drilled discs
Vehicle stabilit y system PSM (with ABS 8.0) PSM (with ABS 8.0)
Wheels
Front:
7 J x 17
Rear: 8.5 J x 17 Front:
8 J x 18
Rear: 9 J x 18
Tyres
Front:
205/55 ZR 17
Rear: 235/50 ZR 17 Front:
235/40 ZR 18
Rear: 265/40 ZR 18
3) 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 offer. They are intended solely as a means of comparing
different types of vehicle. You can obtain further information about individual vehicles from your Porsche Centre. Fuel consumption calculated for
vehicles with standard specification only. Optional equipment may affect fuel consumption and performance.1) 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.
2) In conjunction with the optional Sport Chrono Package or Sport Chrono Package Plus and with the SPORT PLUS button selected.
134 135

The models featured in this
publication are approved for road
use in Germany. Some items of
equipment are available as extra-
cost options only. The availabilit y
of models and options may vary
from market to market due to
local restrictions and regulations.
For information on standard
and optional equipment, please
consult your Porsche Centre.
All information regarding construc -
tion, features, design, per form -
ance, dimensions, weight, fuel
consumption and running costs
is correct at the time of going to
print. Porsche reserves the right
to alter specifications and other
product information without prior
notice. Colours may dif fer from
those illustrated. Errors and
omissions excepted.
©
Dr. Ing. h.c. F. Porsche AG, 2010
All text, illustrations and other
information in this publication
are subject to the copyright of
Dr. Ing. h.c. F. Porsche AG. Any reproduction, duplication

or other use is prohibited without
the prior writ ten consent of
Dr. Ing. h.c. F. Porsche AG.
Dr. Ing. h.c. F. Porsche AG supports
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on paper made from 100 % PEFC-
certified pulp (Programme for the
Endorsement of Forest Certification).
Porsche, the Porsche Crest, 911,
Carrera, Panamera, PCCB, PCM,
PDK, PSM and Tequipment are
registered trademarks of
Dr. Ing. h.c. F. Porsche AG.
Dr. Ing. h.c. F. Porsche AG
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Germany
www.porsche.com
Edition: 01/10
Printed in Germany
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