2011 PORSCHE CAYMAN S ignition

3233
Two examples of the uncompromising efforts of our engineers.
Going forward.
The engines of the Cayman models.
3.4 - litre flat-six engine of the Cayman SCayman S: 370 Nm at 4,750 rpm, 235 kW (320 hp) at 7,200 rpm
Cayman: 300 Nm bet ween 4,400 and 6,000 rpm, 195 kW (265 hp) at 7,200 rpm
larger capacit y of 3.4 litres.
Power output is 235 kW (320 hp)
at 7,200 rpm. Maximum torque:
370 Nm at 4,750 rpm.
Each of the engines convinces
with its outstanding performance
figures, extremely smooth
driver regulates engine power –
and of course sound – using the
extremely sensitive electronic
accelerator pedal.The flat-six engines.
The mid-mounted engines of

both Cayman models are compact
and light weight, and the layout is
familiar: six horizontally opposed
cylinders.
running, optimised gas cycles
and tremendous cornering agilit y.
Fuel consumption and CO2
emissions have been reduced by
up to 15 % and 16 %, depending on
the model. All of this is achieved
by DFI (in the Cayman S), a
lightweight construction and

The 2.9 -litre engine of the Cayman
delivers 195 kW (265 hp) at an
engine speed of 7,200 rpm.
The maximum torque of 300 Nm
is achieved bet ween 4,400 and
6,000 rpm. The engine of the
Cayman S features direct fuel
injection (DFI, p. 34) and has a a host of other engineering
advancements, e.g. VarioCam Plus
(p. 43). This system increases
torque in the lower engine speed
range and power output in the
upper engine speed range. Injec
-
tion and ignition are controlled
by the engine electronics. The
Cayman | Drive
Power (kW)
Torque (Nm)
Engine speed (rpm)
200
280 300
320
340
360 380 400
420
40 60 80
100 120 140 160 180 200 220
240
260
1500 7500
2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 220 240
260
1000
235 kW (320 hp)
370 Nm
280
440
40 60 80
100 120 140 160 180 200 220
240
260
1500 7500
2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 1000
195 kW (265 hp)
300 Nm
280 Power (kW)
Torque (Nm)
Engine speed (rpm)
200
280 300
320
340
360 380 400
420
220
240
260
440
Cayman models: fuel consumption in l/100 km (mpg) urban 14.1 (20.0) –13.6 (20.8) ·
extra urban 7.1 (39.8) – 6.5 (43.5) · combined 9.5 (29.7) –9.1 (31.0); CO
2 emissions 223–214 g / km

36
1
2
3
4
56
78
9
11
12
13
14
15
16
19
20
21
10
17
18
20
37
3.4 - litre flat-six engine of the Cayman S
1. High-pressure pump
2. High-pressure injector
3. Ignition rod module
4. Camshaft controller
5. Switch tappet with integrated
valve clearance compensation
6. Intake camshaft
7. Intake valves
8. Valve spring
9. Combustion chamber with
Alusil cylinder liner surface
10. Forged aluminium piston
11. Forged connecting rod
12. Crankshaft
13. Water pump
14. Vibration damper
15. Resonance valve
16. Distribution pipe flap
17. Intake manifold with integrated
sound chamber
18. Vacuum pump
19. Coolant jacket
20. Crankcase breather
21. Timing chain
Cayman | Drive
Cayman S: fuel consumption in l/100 km (mpg) urban 14.1 (20.0) –13.6 (20.8) ·
extra urban 7.1 (39.8) – 6.6 (42.8) · combined 9.5 (29.7) –9.4 (30.1); CO
2 emissions 223–221 g / km

4041
Input dataRegulation/control of
Electronic engine management
ME 7.8/Cayman – SDI 3.1/ Cayman S
Engine load
Lambda sensor signals
Engine speed (from crankshaft)
Inlet camshaft phase angle
Knock sensor signals
Vehicle speed
Air-conditioning settings
Accelerator pedal
Temperatures
– Coolant
– Intake air
– Air in engine compartment
– Engine oil
– Ambient air
Pressures
– Engine oil
– Fuel
– Ambient air
Ignition
Manifold injection (Cayman)/
direct fuel injection (Cayman S)
Heating of Lambda sensors
Fuel pump (Cayman)/
fuel pumps controlled on demand
(Cayman S)
Fuel-tank venting
CAN interface with driving dynamics control, transmission control, immobiliser, instrument cluster, climate control,
SPORT button, SPORT PLUS button, sports exhaust system button, diagnostics, etc.
Valve lift switchover
(VarioCam Plus)
Secondary-air injection (Cayman)
Starter
Throttle-valve angle
Idling via throttle valve
and ignition
Fuel pressure (Cayman S)
Throttle valve
Camshaft position
Engine fan
Continuously variable oil pump
Cayman
same conditions, they are
monitored individually by the
knock control. The ignition point
is shifted individually, as and
when necessary, to protect the
cylinders and pistons at high
engine speeds. The on -board
diagnostics, which are compliant
with European standards, ensure
timely detection of any faults
and defects that may occur in the
exhaust and fuel systems and
notif y the driver immediately. This
also prevents increased pollutant
emissions and unnecessary fuel
consumption.Engine cooling system.
Our cross-flow cooling system,
as used in motorsport, minimises
the engine’s tendency to knock
and ensures comparatively low
emissions, fuel consumption and
noise levels.
Engine management system
with E-Gas.
The electronic engine management
system ensures optimum engine
performance at all times. It regu-
lates all engine-related functions
and assemblies (see diagram).
The results: optimum performance
and torque with comparatively low
fuel consumption and emissions.
Another important function of the
system is cylinder-specific knock
control. Since the six cylinders
never all work under exactly the
Cayman | Drive

4445
Cayman S exhaust systemCayman S t win tailpipes Cayman S
Cayman tailpipe
circuitry controls and monitors
each cylinder bank separately.
For each exhaust tract, four corre
-
sponding oxygen sensors regulate
the composition of the exhaust
gas and monitor the conversion
of pollutants in the cataly tic con -
verters.
A sports exhaust system – for
a
more resonant sound – is
available as an option for

each of the Cayman models.
Ignition system.
The ignition system is designed
for static high -voltage distribution.
Individual ignition coils on each
of the spark plugs ensure perfect
ignition every time. The individual
ignition coils are controlled
directly by the engine electronics.
Servicing.
It is a good idea to have your
vehicle serviced regularly, but it
makes just as much sense to keep
the time bet ween maintenance
services as long as possible. Why?
Because a Porsche belongs on
the road, and not in the workshop.
The alternator, power-steering
pump and the air- conditioning
compressor are all driven by a
Exhaust system.
The exhaust system – with t win
tailpipes on the Cayman S – is
made of stainless steel. Until it
converges in the connecting tube,
the exhaust gas is channelled
through t wo separate tracts and,
thanks to separate exhaust gas
cleaning systems, the exhaust
gas can flow more freely – for
increased power and torque.
The stereo Lambda control
single self-adjusting belt. Hydraulic
valve clearance compensation
makes valve clearance adjustment
unnecessary. The drive chains
on the camshaf ts do not normally
require servicing. With the sole
exception of the spark plugs,
the ignition system is also
maintenance-free.
Put simply, we don’t expect to
see your Porsche too often.
Cayman | Drive

7475
Porsche Side Impact Protection System (POSIP)Cayman
Other passive safet y features
include headrests integrated into
the seat backrests, an energy
absorbing steering column,

three-point seat belts, front seat-
belt pretensioners and force
limiters, energy-absorbing
elements in the dashboard
and flame-resistant materials
throughout the interior.
Child seats.1)
The child seat preparation
package, which includes ISOFIX
mounting points and a key switch
for deactivating the passenger
airbag, is available from Porsche
Tequipment. A full range of
child seats is also available from
Porsche Tequipment.
Passive safety: airbags.
Each of the full-size airbags is
inflated in t wo stages, depending
on the severit y of an accident.
In less serious accidents, the
airbags are only partially inflated,
thereby minimising discomfort
for the occupants. Also fit ted as
standard is the Porsche Side
Impact Protection System
Anti-theft protection.
Both models are equipped
with an immobiliser with in -key
transponder. In addition, the
Cayman S has an alarm system
with contact-sensitive exterior
protection as standard (optional
for the Cayman). It is activated
and deactivated by the remote
control integrated in the ignition
key, which is also used to lock and
unlock the doors. Radar-based
interior surveillance is available as
an option for both models.
(POSIP). It comprises side impact
protection elements in the doors
and t wo airbags on each side. An
integral thorax airbag is located
in the seat backrests, while each
door panel contains a head air
-
bag. With each having a volume
of approximately 8 litres, these
airbags of fer excellent protection
in the event of a side impact.
Porsche Vehicle Tracking
System (PVTS).
In conjunction with the alarm
system, this optional preparation
enables future installation of the
Porsche Vehicle Tracking System
(PV TS) available from Porsche
Tequipment. It makes it possible
to locate a stolen vehicle across
most of the countries of Europe.
The package includes a special
wiring loom and a higher- capacit y
bat tery. A tilt sensor for the alarm
system is also included.
1) Child seats must not be used with
sports bucket seats.
Cayman | Safet y

8283
Adaptive sports seat with driver memor y
Comfort seat with driver memor y Sports bucket seat Automatic climate control
fore/af t position is adjusted
manually, the backrest electrically.
Adaptive sports seats with
driver memory.
The optional adaptive sports
seats in leather combine excellent
comfort with first-rate track
performance.
Along with all the adjustment
features of the comfort seats, the
side bolsters on the seat surface
and backrest are individually
electrically adjustable, for increased
comfort on long journeys and tailor-
made lateral support through
bends or on the racetrack. The
memory function supports the
exterior mirrors and all driver’s
seat positions, apart from the side
bolsters.
Air conditioning.
Both Cayman models come
with a powerful and quiet air-
conditioning system as standard.
The optional climate control
system of fers even more uniform
and comfortable ventilation.
Cruise control.
This optional automatic speed
controller for the 30 to 240 km/ h
(19 –149 mph) speed range
is operated using a switch on a
separate control stalk on the
steering column.
Standard seats.
The standard seats with centre
upholstered in Alcantara offer a
high degree of comfort with good
lateral support and optimised
under-seat suspension. Through
bends, your seat gives you a
feeling of securit y without restric -
tion. The seats are equipped as
standard with manual height and
fore/aft adjustment and an electric
backrest adjustment, enabling
virtually every driver to find the
ideal seat position, regardless of
physical build.
Comfort seats with
driver memory.
Comfort seats with electric fore/
af t, height, backrest and lumbar
support adjustment are available
as an option. The tilt angle of the
Sports bucket seats.1)
For the ultimate sports experience,
you could opt for sports bucket
seats with a folding backrest,
integral thorax airbag and manual
fore/aft adjustment. The backrest
shell is made from glass-/carbon-
fibre-reinforced plastic and has a
st ylish carbon-weave finish. The
backrest pivots are positioned high
in the side bolsters to provide
lateral support to the pelvic region,
characteristic of a race seat. The
seat upholstery is offered in all
available leather t ypes and colours.
seat squab is also electrically
adjustable. The memory function
supports the exterior mirrors and
all seat positions on the driver’s
side. Using the control switches
in the door panel, it is possible to
restore one of t wo personalised
set tings. Additionally, you can
store a further seat position in
each of the ignition keys. As soon
as you unlock the door using
the key remote, the driver’s seat
and exterior mirrors resume their
stored position.
Sports seats.
The optional sports seats have
firmer leather upholstery than
the standard design. Higher side
bolsters on the seat squab and
backrest provide additional lateral
support. The seat height and
Seat heating and ventilation.
As an option, all compatible seats
– apart from sports bucket seats
– can be equipped with t wo -level
seat heating.
Seat ventilation for the standard
seats and comfort seats is also
available as an option (only in
conjunction with seat heating,
climate control and part or full-
leather interior). A slipstream
effect evaporates perspiration
moisture – for a comfortable

seating environment. Ventilation
intensit y can be set to one of
three levels.
Cayman | Comfort
1) Child seats must not be used with sports bucket seats.

136137
Index
Te r m Pa g e
A
Active safet y 66
Airbags 74
Air- conditioning system 83
Anti-theft protection 75
Audio interface, universal 95
B
BOSE® Surround Sound
System 96
Braking system 69
C
CD autochanger 95
CDR-30 audio system 90
Chassis 56
Child seats 75
Colours 108
Cornering lights, dynamic 67
Cruise control 83
D
Direct fuel injection 34
Dry-sump lubrication,
integrated 38
E
Engine cooling 40
Engine management 40
Engine, flat-six 32
Environment 98
Exclusive 127
Exhaust emission control 100
Exhaust system 44
F
Factory collection 128
Fuel 103
Fuel system 103
G
Garage door opener
(HomeLink
®) 84
H
Headlight cleaning system 67
Headlights, Bi-Xenon 67
Hill-start assist 53
HomeLink
® (programmable
garage door opener) 84
I
Ignition 44
Instruments 80
L
LED day time running lights 67
Logbook, electronic 94
Luggage compartment, front 86
Luggage space, rear 86
M
Maintenance 103
Maintenance requirements 45
Manual gearbox 53
Materials 103
N
Navigation module 92
Noise 103
O
Oil supply 38
On -board computer
integrated 80
P
ParkAssist 85
Passive safety 73
Personalisation options 106
Porsche Active Suspension
Management (PASM) 60
Porsche Ceramic Composite
Brake (PCCB) 70
Porsche Communication
Management (PCM) 92
Porsche Doppelkupplung
(PDK) 48
Porsche Side Impact
Protection System (POSIP) 74
Porsche Stability Management
(PSM) 72
Porsche Vehicle
Tracking System (PV TS) 75
R
Rear differential lock 60
Rear wiper 85
Recycling 103 Resonance intake manifold
43
Roof transport system 89
S
Safet y, active 66
Safet y, passive 73
Seat heating 83
Seat ventilation 83
Seats, comfort 82
Service 130
Side windows,
water-repellent 84
Sound Package Plus 95
Sport Chrono Package 62
Sport Chrono Package Plus 63
Sports bucket seats 83
Sports exhaust system 44
Sports seats 82
Sports seats, adaptive 82
Standard seats 82
Steering 58
Steering wheel heating 81
Steering wheels 81
Storage compartments 88
T
Technical data 134
Telephone 94
Telephone preparation 95
Transport concept 86
TV tuner 94
Tyre Pressure Monitoring
(TPM) 59
V
VarioCam Plus 43
Voice control system 94
W
‘Welcome Home’ lighting 84
Wheels 59
Windscreen wipers 84
Index