2012 PORSCHE CAYMAN S torque

20
It ’s always worth taking the direct route:
from stimulus to response, from resting
pulse to pounding heart, from impulse to
endorphin rush – not least when the dis-
tance to travel is less than half a metre.
The new Cayman is equipped with a com -
pletely newly developed 2.7- litre boxer
engine and the Cayman S is driven by a

3.4-litre variant, both of which are tuned
for sport y driving. Accelerator pedal in -
puts are translated directly into propul -
sion. Maximum torque is available over a
broad engine speed range. Both engines feature direct fuel injection
(DFI) and VarioCam Plus. Power is trans
-
mit ted to the wheels by a smooth
6-speed manual gearbox or the optional

7-speed Porsche Doppelkupplung (PDK).
Exemplary efficiency is achieved by means
of sophisticated technologies. As stand ard,
these include the auto start/stop function,
electromechanical power steering, elec -
trical system recuperation and intelligent
thermal management. The result, depend -
ing on the equipment variant, is a 16 %
reduction in CO2 emissions compared with
the previous model.
Six cylinders. Four heart chambers.
Just 30 cm apart.

e ngineering.
Thanks to our principles of intelligent light -
weight construction, we have succeeded
in making the body stiffer and simultan-
eously lighter. The chassis has been com -
pletely revised. For enhanced dynamic per -
formance and increased driving stability
when the car is pushed to the limit, both
models are equipped with Porsche Stability
Management (PSM). Enhanced Porsche
Active Suspension Management (PASM)
is available as an option and includes a
ride height reduction of 10 mm. Porsche
Torque Vectoring (PT V) with rear differen -
tial lock for increased agilit y and traction
in corners is also available on request.
For fuel consumption, CO
2 emissions and efficiency class, please refer to page 131.
The optional Sport Chrono Package makes
the response and handling characteristics
of the new Cayman even sportier. For the
first time, the package now also includes
dynamic transmission mounts, which make
a perceptible contribution to handling
stabi l ity in fast corners whilst ensuring
a high degree of ride comfort.
Several years of development work and
countless draf ts later, our engineers have
realised their goal: the direct link bet ween
action and reaction. Experience the result
in the new Cayman, and let your pulse
rate be the measure of success.
The new Cayman models |
Engineering

25
24 The new Cayman models |
Cayman S
Those who give their all,
should be given it all back.

The new Cayman S.Having an idea is one thing, thinking it
through to the end is another. Some-
times you have to give your all, and with
the new Cayman S this is exactly what
we did – in every respect and with suc -
cess. Its 3.4-litre flat-six engine with DFI
and VarioCam Plus generates 239 kW
(325 hp). It accelerates from 0 to 100 km/ h
(0–62 mph)
in 5.0 seconds and achieves

a top speed
of 283 km/ h (175 mph).
With PDK and the Sport Chrono
Package, both of which are optional, it
reaches 100 km/ h in just
4.7 s e c o n d s. Improved performance demands capable
components. The chassis of the new

Cayman S is matched specifically to the
high power output of the engine. Even
greater levels of agilit y, traction and con -
trol in corners can be achieved with
Porsche Active Suspension Management
(PASM), Porsche Torque Vectoring (PTV)
with rear differential lock and the dynamic
gearbox mounts of the Sport Chrono
Package – all of which are available from
our list of options. For added safet y, the
front axle is equipped with larger brake
discs to cope with the increased engine
power. The brake calipers are finished
in red. Imposing 19-inch Cayman S light-
alloy wheels with a classic five-spoke
design are fit ted as standard.
On the new Cayman S, Bi-Xenon headlights
are fit ted as standard. The precisely st yled
LED front light units accentuate the front
air intakes finished in black. At the rear,
the twin tailpipe in brushed stainless steel is located in the centre and produces the
typically resonant
Porsche sound.
For the new Cayman S, we gave our all.
As a mat ter of principle, out of passion
and in anticipation of the corner ahead.
For fuel consumption, CO
2 emissions and efficiency class, please refer to page 131.

134
21 34
2
31
30
For fuel consumption, CO2 emissions and efficiency class, please refer to page 131.
2.7-litre engine.
The Cayman is equipped with a free-
rev ving 2.7-litre flat-six engine with direct
fuel injection (DFI) and VarioCam Plus. It
develops 202 kW (275 hp) at 7,400 rpm.
The maximum torque of 290 Nm is
available across a wide speed range
from 4,500 to 6,500 rpm. The new Cayman with six-speed manual
gearbox accelerates from 0 to 100 km/ h
(0 – 62 mph) in 5.7 seconds and reaches
a top speed of 266 km/ h (165 mph).

With the optional Porsche Doppelkupplung
(PDK), it completes the 0 to 100 km/ h
(0 – 62 mph) sprint in 5.6 seconds
and achieves a maximum speed of 264 km/ h (164 mph). Available as an

option, the Sport Chrono
Package of fers
a further performance boost, enabling
the new Cayman to accelerate from
0 to 100 km/ h (0 – 62 mph) in just

5.4 seconds.
3.4-litre engine.
The Cayman S draws its agilit y from a
3.4-litre flat-six engine with direct fuel
injection (DFI) and VarioCam Plus. It pro -
duces 239 kW (325 hp) at 7,400 rpm and
its maximum torque of 370 Nm is gener -
ated bet ween 4,500 and 5,800 rpm.
The new Cayman S with six-speed manual
gearbox races from 0 to 100 km/ h
(0 – 62 mph) in
5.0 seconds and reaches
a top speed of
283 km/ h (175 mph).
Even sportier figures are
achieved
with
optional PDK: 4.9 seconds from 0 to
100 km/ h (0 – 62 mph) and a top
speed of 281 km/ h (174 mph). In con -
junction with the Sport Chrono Package
available on request, the Cayman S
finishes the sprint to 100 km/ h (62 mph)
in just 4.7 seconds.1 Power output and torque chart for the Cayman
2 Power output and torque chart for the Cayman S
3 Engine, gearbox and exhaust system of the Cayman S
4 Cayman S engine
Drive |
Engine
4060 80
100 120 140 160 180 200 220 240 260
1500 75008000
2000 2500300035004000450050005500600065007000
1000
280
Power (kW)
T orque (Nm)
Engine speed (rpm)
200
280 300 320 340 360
380 400
420
220 240 260
440
202 kW (275 hp)
290 Nm
40
60 80
100 120 140 160 180 200 220 240 260
1500 75008000
2000 2500300035004000450050005500600065007000
1000
280
Power (kW)
T orque (Nm)
Engine speed (rpm)
200
280 300 320 340 360
380 400
420
220 240 260
440
239 kW (325 hp)
370 Nm

32
resonance intake manifold.
The resonance effect, where the air mass
inside the intake manifold is caused to
oscillate, is used to improve air induction
and, in turn, to optimise the formation
of the fuel/air mixture. In the Cayman S,
the manifold is also equipped with a
switchable resonance valve.
The results are high torque, a uniform
torque curve and high power output.

The sound produced is characteristically
resonant and deep.
Direct fuel injection (DFI).
Direct fuel injection (DFI) is featured as
standard in both Cayman models. Multi-
hole injectors deliver fuel directly into the
combustion chamber with millisecond
precision. The injection pattern has been
optimised for torque, power output, fuel
consumption and emissions. Combustion
is even more effective as a result.
With direct injection, the engine manage -
ment system regulates injection timing
individually for each cylinder as well as
the injection rate for each cylinder bank.
This optimises the combustion process
and therefore fuel economy. Depending on the engine operating con
-
dition, multiple fuel injections take place
so that the cataly tic converter reaches
normal operating temperature sooner
after a cold start and a greater top-end
torque can be achieved.
DFI improves the internal cooling of the
combustion chamber by having the mix -
ture prepared directly in the cylinder. This
allows for a higher compression ratio,
which helps to deliver greater power out -
put at the same time as enhanced engine
efficiency. Injection is regulated by the
electronic engine management system
and emissions are monitored by the
stereo Lambda sensors, thus helping to
protect the environment.
For fuel consumption, CO
2 emissions and efficiency class, please refer to page 131.
Drive |
Engine

12
36
Thermal management.
The intelligent thermal management
system in the Cayman models regulates
the temperature in the engine and gear -
box
to reduce friction losses that occur
during the warm-up phase.

Thanks to the purposeful control of heat
flow and on-demand, gradual activation
of the various cooling circuits, the engine
and gearbox warm up to normal operat -
ing temperature more rapidly. The result -
ing reduction in friction also reduces fuel
consumption and CO
2 emissions. During
sporty driving, thermal management also
acts to reduce temperatures so as to
maintain a high degree of performance. Our cross-flow cooling system, as used

in motorsport, supplies each engine cylin -
der uniformly with coolant, which protects
all valves against thermal overload and,
therefore, premature wear. This improves
combustion and keeps emissions, fuel con -
sumption and noise comparatively low.
exhaust system.
In the new Cayman models, each cylinder
bank has its own stainless-steel exhaust
tract. Downstream of their respective rear
silencer, the tracts converge into a con -
necting tube and a single (Cayman) or t win
(Cayman S) tailpipe. The stereo Lambda
control circuitr y

controls and monitors each cylinder bank
separately. For each
exhaust tract, four
corresponding oxygen sensors regulate
the composition of the exhaust gas and
monitor the performance of the catalytic
converters. The separate
tracts enable
the exhaust gas to flow more
f re e l y. T h e
resulting reduction in pressure loss has
a positive impact on power output, torque
and the unmistakable engine sound.
Available as an option for the new Cayman
models is the sports exhaust system*
including sports tailpipe. It produces an

even more resonant Porsche sound.
1 Standard tailpipe of the Cayman S
2 Standard tailpipe of the Cayman
* Available from 03/2013 at the earliest.
Drive |
Engine

2
1
2
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e ngine management.
The electronic engine management
system ensures optimum perfect engine
performance at all times. It regulates all
engine-related functions and assemblies.
The results are optimum power output
and torque with comparatively low fuel
consumption and emissions – whatever
the driving st yle.
One example is the cylinder-specific knock
control. Since engine cylinders never all
work under exactly the same conditions,
the knock control function monitors each one separately. The ignition point is shift
-
ed individually, as and when necessary,
so as to protect the cylinders and pistons
at high engine speeds and loads. For
compliance with EU standards, the on-
board diagnostics detect any faults and
defects that may occur in the exhaust
and fuel systems and then display them
on the on-board computer. This also
helps to avoid increased pollutant emis
-
sions and unnecessary fuel consumption.
a uto start/stop function.
The auto start/stop function, which is in -
tegrated as standard in the new Cayman
models, switches off the engine when
you stop, select neutral and release
the clutch pedal. In cars with Porsche
Doppelkupplung (PDK), it is simply a
case of applying and holding the brake.
All audio and communication systems
remain switched on. The engine will

restart as soon as you operate the clutch
or, in cars with PDK, release the brake.
This fuel-saving innovation is designed

primarily for use in urban traffic. The auto start /stop function can be deac
-
tivated and reactivated using a separate
but ton on the centre console. The func -
tion is deactivated automatically under
particular circumstances, e.g. in the
event of extreme outside temperatures,
activation of the SPORT but ton or low

bat tery charge.
Drive |
Engine
1 Auto start /stop but ton
2 SPORT but ton

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With the SPORT but ton selected, the full
advantages of the new version of PDK
are brought into play: a more immediate
response to throt tle inputs, relatively
short shift times and swift throt tle-blip
downshifts on overrun, such as during
braking into a corner, and always accom -
panied by an emotive engine sound.
With the optional Sport Chrono Package,
PDK is enhanced by ‘Launch Control’
and the ‘motorsport-derived gearshift
strategy’ for even faster and firmer gear
changes and best possible per formance,
thanks to a boost in torque during up -
shift phases. Overrun downshifts provide
extremely sport y braking and accelera -
tion for added excitement.
Coasting.
Efficiency is another area in which the
performance of the new Cayman models
has been further improved. The coasting
function available with Porsche Doppel-
kupplung (PDK) enables you to save even
more fuel where the situation allows.
The engine is decoupled from the trans -
mission to prevent deceleration caused
by engine braking. In this way, optimum
use is made of the vehicle’s momentum,
allowing it to coast for longer distances.
For example, you may want to slow down
from 100 to 80 km/ h (70 to 50 mph) in
anticipation
of the change of speed limit
ahead. As you ease off the accelerator
pedal, PDK deselects the current gear
automatically and you begin to coast in
neutral with minimal input required on
your part until
you have reached your desired speed.
As soon as you operate
the accelerator
or brake pedal, PDK
re-engages the appropriate gear within
fractions of a second. The process
is smooth and seamless, thanks to the
extremely fast
clutch.
Another way to reduce fuel consumption
is to utilise the coasting function on down -
hill gradients that are gentle enough for
you to maintain a constant speed. Efficient
on long journeys, such as on the motor -
way, PDK remains ready to respond as

swiftly and precisely as you would expect.
In short, driving in coasting mode makes
a real impact on fuel consumption without
the need to compromise on comfort or
sporty performance.
Drive |
Tra n s m i ssi o n
For fuel consumption, CO2 emissions and efficiency class, please refer to page 131.

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Another key advantage of PCCB is the
extremely low weight of the ceramic brake
discs, which are approximately 50 % light-
er than standard discs of a similar design
and size. As well as enhancing perfor -
mance and fuel economy, this represents a major reduction in unsprung and rotat
-
ing masses. The consequence of this is
bet ter road holding and increased com -
fort, particularly on uneven roads, as well
as greater agility and improved handling. Please note that circuit racing, track day
use and other forms of performance driv
-
ing can significantly reduce the service
life of even the most durable pads and
discs. As with conventional high-perfor -
mance braking systems, we recommend that all brake components be profession
-
ally inspected and replaced where neces -
sary after each track event.
e lectric parking brake.
The electric parking brake, which can be
activated and deactivated manually, is
released automatically as you pull away
with your seat belt fastened. A hill hold
function is integrated as standard for the
manual gearbox and for PDK. It assists
you in making a comfortable, smooth
and roll-free start on an incline. Whenever
you come to halt on an incline, this is
detected automatically and the braking
effect of the electric parking brake is

supplemented by application of the wheel
brakes. As long as a gear remains en -
gaged, the brake pressure is maintained
at all four wheels. To pull away, simply
apply throt tle. As soon as sufficient
starting torque is available, the brake
is
released and the vehicle moves off.
Drive |
Chassis