2011 PORSCHE CAYMAN S torque

89
Porsche Doppelkupplung (PDK,
p. 48) is available as an option.
The key elements of PDK are its
seven gears, t wo half gearboxes
and t wo clutches. It features both
manual and automatic modes.
Gears are changed using the gear
selector for PDK, the switches
on the sports steering wheel or
the new optional SportDesign
steering wheel with gearshift
paddles with race track control
logic. The gear change takes
place in a mat ter of milliseconds
without any interruption in the
flow of power. The advantage

over a fully manual transmission
is the 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.
Two dif ferent characters. One
personalit y. Their drive for power
is impressive, their spirited nature
fascinating. Two sports coupés
that go beyond all conventions.
Two cars that draw their drivers
under their spell, forever.
The concept behind the Cayman
models is the ‘Le Mans Coupé’,

a sports coupé designed in 1953
specifically for this legendary
race and based on the 550
Spyder. Its mid- engine layout is
what made this car special. The
car’s low centre of gravit y gave it
tremendous agilit y and cornering
dynamics. From this one basic
idea came great success, and
with this success our experience
grew. The result? Two sophisticated
sportscars. The Cayman and the
Cayman S.
Their uncompromising perform -
ance is generated by t wo engine
developments, which stand out
above all for their light weight
construction, power output
and ef ficiency. The Cayman has
a 2.9 -litre flat-six engine with a
power output of 195 kW (265 hp).
Even more impressive are the per -
formance values of the Cayman S
with direct fuel injection (DFI, p. 34).
The fuel/air mixture is prepared

entirely in the combustion chamber
af ter having been metered and
injected directly, with millisecond
precision. This means even more
power and torque. To express
this in figures, its 3.4-litre flat-
six engine unleashes a might y
235 kW (320 hp). Depending on
the model, it has been possible
to reduce fuel consumption by
up to 15 % and CO
2 emissions by
up to 16 %.
In either model, this tremendous
power is delivered to the road
by a precision six-speed manual
gearbox.
The primary target group:
your central nervous system.
The Cayman models.
Cayman | The concept
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

2627
6,000 rpm. From a standing start,
the Cayman accelerates to 62 mph
(100 km/ h) in 5.8 seconds. With the
optional Porsche Doppel
kupplung
(PDK), this sprint takes just
5.7 seconds. Top speed is 165 mph
(265 km/ h) in conjunction with the
manual gearbox. Equally impressive,
however, is the 10 % reduction in with 5-inch display. An integrated
six- disc CD autochanger is
available as an option.
The Cayman has found its way.
Its own? Without doubt.
The Cayman is the driving force
behind precisely one at titude:
the absolute conviction to remain
true to oneself. No middle roads.
No compromises. No nonsense.
One of the features that exempli
-
fies this at titude is the mid- engine
layout, which ensures a low centre fuel consumption and the 12
%
reduction in CO2 em issio ns,
depending on the t ype of gearbox.
The power of the engine is deliv -
ered to the road by a precision
six-speed manual gearbox. Fit ted
as standard are 17-inch wheels
with a star-shaped design, which
allows an eye-catching view of
of gravit y and thus a high degree
of agilit y and an extremely sport y
drive. The six-cylinder horizontally
opposed power unit has a capacit y
of 2.9 litres. The engine delivers a
power output of 195 kW
(265 hp)
at an engine speed of 7,200 rpm.
A maximum torque of 300 Nm
is achieved bet ween 4,400 and the powerful brake system. And
the interior? The overall impression
is simply one of high qualit y. For
instance, the rims of all available
steering wheels are covered in
smooth -finish leather. The centre
console, finished in traditional
black, is equipped as standard
with the CDR-30 audio system
You should never doubt your own principles.
The Cayman.
Cayman | Model range
Cayman: fuel consumption in l/100 km (mpg) urban 13.8 (20.5) –13.6 (20.8) ·
extra urban 6.9 (40.9) – 6.5 (43.5) · combined 9.4 (30.1) –9.1 (31.0); CO
2 emissions 221–214 g / km

2829
achieved at 4,750 rpm.
This means, it has been possible
to reduce fuel consumption by
up to 15 % and CO
2 emissions
by up to 16 %, depending on the
t ype of gearbox.
To accept no compromises,

to make conscious decisions, to
be governed by nothing other
than one’s own free will, and to
have a clear point of view. A
highly promising way to build a
sportscar. For us, it ’s the only
w ay. The Cayman S reaches 62 mph
(100 km/ h) in just 5.2 seconds.
Top speed isn’t reached until
172 mph (277 km/ h). Porsche
Doppelkupplung (PDK, p. 48)
is available as an option. The
fastest rate of acceleration

of 4.9 seconds is achieved

in conjunction with the optional
Sport Chrono Package.
In addition to having a higher
power output, the Cayman S
also dif fers from the Cayman in
This philosophy was also the
basis for the development of
the mid-mounted engine with a
3.4-litre capacit y and direct fuel
injection (DFI, p. 34). The engine
delivers a power output of 235 kW
(320 hp) at 7,200 rpm, and a
maximum torque of 370 Nm
is
its appearance. It has a front
spoiler painted in the vehicle’s
exterior colour, and t win
tailpipes in stainless steel. The
sound? Distinctive. In keeping
with the rest of the Cayman S.
But so much power also needs
to be tamed. This is the task of
the enlarged brake system with
four-piston aluminium monobloc
fixed calipers in a striking red
painted finish. To deliver the increased power
output to the road, the Cayman S
is fit ted with 18-inch Cayman S II
wheels. Their design exudes pure
dynamism – as befits the model’s
overall look.
In summary, the Cayman S

is more than just a sportscar.
It ’s a Porsche.It takes no prisoners,
except for your free will.
The Cayman S.
Cayman | Model range
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

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

3435
Cayman S
homogeneous distribution of the
air/fuel mixture and, therefore,
effective
combustion. Multiple fuel
injections
take place, depending
on the driving st yle. DFI improves
the internal cooling of the combus-
tion chamber by having the mixture
system. The exhaust gas cleaning
system ensures that emissions
remain well below the limits of

the Euro 5 emission standard,
thus helping to protect the envi -
ronment.
Direct fuel injection (DFI).
The engine of the Cayman S
has direct fuel injection (DFI).
With millisecond precision, fuel is
injected at up to 120 bar directly
into the combustion chamber by prepared directly in the cylinder.
This allows for a higher compres
-
sion ratio (12.5 : 1) which helps
to deliver more output along with
enhanced engine ef ficiency.
means of electromagnetically
actuated injection valves.
The spray and cone angles have
been optimised for torque,

power output, fuel consumption
and emissions by enabling a Depending on the t ype of gear
-
box, it has been possible to reduce fuel consumption by up to 15 %
and CO
2 emissions by up to 16 %.
Injection is regulated by the
electronic engine management
Cayman | Drive

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

4243
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.

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