2008 PORSCHE CAYENNE PORSCHE CAYNNE 2008 1.G Information Manual

Another impressive feature is the
new braking system. The larger-
diameter discs provide extremely
high standards of active safety
in all driving scenarios. As a result,
the Cayenne Turbo achieves bench-
mark performance in decelerationand stability under load. The new
calipers are larger in size with
a distinctive red paint finish. The
Porsche Ceramic Composite
Brake (PCCB) is available as an
option.
Externally, the Cayenne Turbo is
instantly recognisable by the
‘power domes’ on the engine lid.
Other standard features include
Bi-Xenon headlights with static and
dynamic cornering lights. Together
with the elongated lights in the
front air intakes, they lend additional
presence and character to the car.
The interior is a blend of sporting
style and exclusivity: comfort
seats with a comfort memory
package and leather upholstery
as standard. Sports seats are
offered as a no-cost option, also
with a comfort memory package.
The standard BOSE®Surround
Sound System delivers perfect
sound at every seat position.
Other standard features include
Porsche Communication
Management (PCM) with satellite
navigation (see page 132).
The cluster of five round instru-
ments in the Cayenne Turbo has
a 5-inch colour display in the
central dial. This provides infor-
mation from a range of systems,
including the on-board computer.
The far right-hand dial contains
the boost pressure gauge.
All interior trim elements in the
Cayenne Turbo have an elegant
satin aluminium finish.
The Cayenne Turbo. Uncom-
promising in performance, a
technological benchmark, yet
practical in everyday use. Virtually
unlimited on or off road – but
always in comfort and safety.
Model range
5-inch colour display
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Drive More drive.
More power.
More efficiency.More of the things that make
the Cayenne a Porsche.
· 39 · · 38 ·

1. Air intake system
2. High-pressure pump
3. VarioCam Plus
(rotary-vane adjuster)
4. Duplex timing chain
5. High-pressure fuel rail
6. Injector (obscured)
7.
VarioCam Plus (switchable
tappet with hydraulic valve
clearance adjustment)
8. Inlet camshaft
9. Exhaust camshaft
10. Valve
11. Piston
12. Spark plug
13. Exhaust manifold
14. Turbocharger
15. Oil filter
16. Oil /coolant heat exchanger
17.
Air-conditioning compressor
18. Oil pump pick-up pipe
19. Water pump (obscured)
20. Ancillary drive belt
21. Throttle-valve tract
(electronic throttle)
Cayenne Turbo engine
1011
12
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14
15
16
17
18
19
20
21
1
2
3
4
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78
9
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Drive

100 300 350
400
450
500 550 600
6500 30
60 90 120150
180 210 240 270
300
3301500
7500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000
150 200
250
1000
Power (kW)Torque (Nm)
Engine speed (rpm)
360700
283 kW (385 hp)
500 Nm
100 300 350
400
450
500 550 600
6500 30
60 90 120150
180 210 240 270
300
3301500
7500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000
150 200
250
1000
Power (kW)Torque (Nm)
Engine speed (rpm)

360700
213 kW (290 hp)
385 Nm
Cayenne: 385 Nm at 3,000 rpm, 213 kW (290 hp) at 6,200 rpm Cayenne S: 500 Nm at 3,500 rpm, 283 kW (385 hp) at 6,200 rpm
The engine is the heart of every
Porsche. It is the origin of its power,
presence and sound, its unique
Porsche character and performance.
On all four Cayenne engines, we
have used direct fuel injection (DFI)
to achieve a significant increase in
specific power and torque as well
as better fuel economy and lower
emissions. All four units are relatively
compact in spite of their large
displacement. The engine cooling
system is extremely effective,
coping easily with heavy trailer loads.
The Cayenne has a naturally
aspirated 3.6-litre V6 with direct
fuel injection and variable valve
timing.
Maximum power output is 213 kW
(290 hp) at 6,200 rpm with
maximum torque of 385 Nm at
3,000 rpm. The results: 0 to
100 km / h (62 mph) in 8.1 seconds
(with manual gearbox) and a max-
imum speed of 227 km / h (141 mph).
The Cayenne S has a naturally
aspirated 4.8-litre V8 with direct
fuel injection and VarioCam Plus.
Maximum outputs are 283 kW
(385 hp) at 6,200 rpm and
500 Nm of torque at 3,500 rpm.
Top speed is 252 km / h (157 mph)
with a manual gearbox and
250 km / h (155 mph) with
Tiptronic S. The standard sprint
to 100 km / h (62 mph) requires
6.6 seconds (manual) or
6.8 seconds (Tiptronic S).
Cayenne S engine
Drive
Taking a little. Giving a lot.
The heart of the Porsche Cayenne.
Cayenne engine
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100 300 350
400
450
500 550 600
6500 30
60 90 120150
180 210 240 270
300
3301500
7500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000
150 200
250
1000
Power (kW)Torque (Nm)
Engine speed (rpm)
360700
390750
298 kW (405 hp)
500 Nm
800420
100 300 350
400
450
500 550 600
6500 30
60 90 120150
180 210 240 270
300
3301500
7500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000
150 200
250
1000
Power (kW)Torque (Nm)
Engine speed (rpm)

360700
390750368 kW (500 hp)700 Nm
800420
The Cayenne GTS has a more
powerful naturally aspirated
4.8-litre V8 with direct fuel
injection and VarioCam Plus.
The induction system has been
specially modified to increase
power and efficiency. Maximum
output is 298 kW (405 hp) at
6,500 rpm with 500 Nm of
torque at 3,500 rpm. With the
standard manual gearbox,
the Cayenne GTS accelerates
to 100 km / h (62 mph) in
6.1 seconds. Maximum speed
is 253 km / h (157 mph).
The Cayenne Turbo has a 4.8-litre
twin-turbo V8, also with direct fuel
injection and VarioCam Plus.
Maximum outputs are 368 kW
(500 hp) at 6,000 rpm with 700 Nm
of torque between 2,250 and
4,500 rpm. Top speed in appropriate
track conditions is 275 km / h
(171 mph). From a standing start,
it reaches 100 km / h (62 mph) in
a breathtaking 5.1 seconds.
Drive
Cayenne Turbo engine
Cayenne Turbo: 700 Nm between 2,250 and 4,500 rpm, 368 kW (500 hp) at 6,000 rpm Cayenne GTS engine
Cayenne GTS: 500 Nm at 3,500 rpm, 298 kW (405 hp) at 6,500 rpm
· 45 · · 44 ·

440
400
360
320
280
24 0
20 0
160
120
80 900
850
800
750
700
650
600
550
500
450
2000 4000 6000
Our greatest motivation:
to exceed our own achievements.
Powerkit Cayenne Turbo.
The Porsche Turbo is a simple
concept: ultimate performance in
every respect. The Cayenne Turbo
continues this tradition with power,
dynamism and agility. This capability
can only be achieved when you’re
always striving to improve. Which
is why even the Cayenne Turbo
can offer increased power and,
with it, greater active safety.
The optional Powerkit Cayenne
Turbo increases maximum output
from 500 to 540 hp.
This is achieved using a new
intake manifold and a number
of modifications to the engine
management system. The result:
397 kW (540 hp) at 6,000 rpm.
Maximum torque is increased by
50 Nm to 750 Nm (between
2,250 and 4,500 rpm). Acceleration
to 100 km / h (62 mph) requires
just 4.9 seconds. Maximum speed
is 279 km / h (173 mph).
Even the engine compartment
immediately conveys the promise
of pure performance. Special
features include a throttle body
cover in carbon fibre and a plaque
in brushed aluminium. These are combined with a titanium-coloured
intake manifold with carbon inlays
and silver-coloured ‘turbo’ logo.
The propeller shaft has also been
revised to match the increased
loads. The overall result:
even greater exhilaration on
the racetrack, even greater
responsiveness on the road.
Drive
Powerkit Cayenne Turbo*
Fuel consumption**
Urban 22.5 l/100 km (12.6 mpg)
Extra urban 10.5 l/100 km (26.9 mpg)
Combined 14.9 l/100 km (19.0 mpg)
CO2emissionsCombined 358 g/km
· 47 · · 46 ·
397 kW
(540 hp)
Power (kW)
Torque (Nm)
Cayenne Turbo with Powerkit
Cayenne Turbo with standard engine
750 Nm
(2,250 – 4,500 rpm)
Engine speed (rpm)Cayenne Turbo engine with Powerkit
** Only available in conjunction with 19-inch Porsche wheels or larger (with requisite approval).
** Emissions were recorded in accordance with Directive 80/1268/ EC on standard vehicles as valid at the time of publication.
The respective figures were not recorded on individual vehicles and do not constitute part of the offer.
This data is provided solely
for the purposes of comparison between the respective models. For more information, pleasecontact your Porsche Centre.

Power is the product of efficiency.
Lightweight alloy engine construction.
‘Less is more’ – less weight, more
performance – is a key principle of
Porsche design.
The V8 Cayenne engines have
a ‘closed-deck’ aluminium
crankcase and lightweight
aluminium bedplate. The cylinder
block and its associated coolant
channels are therefore a fully
enclosed system. This not only
reduces the weight of the engine,
it also improves its dimensional
stability. Since the engine is
stronger, it also has a longer
service life.
Other major lightweight compon-
ents include cast aluminium
pistons and aluminium cylinder
heads. On the Cayenne Turbo, the
pistons are forged to compensate
for the higher loads.
The Cayenne V6 has a cast-iron
crankcase and one-piece cylinderheads in die-cast aluminium. This
combination produces high power
output while reducing the weight
of the engine.
Drive
Lightweight construction used on the V8 engines
Consistent performance and a longer service life.
Engine cooling system.
Each engine remains within its
optimum temperature range at
all times. Clearances throughout
the engine are extremely small,
thereby reducing wear. The entire
cooling system is designed for
prolonged
heavy-duty use, e.g.,
off-road driving or heavy towing
and carrying applications.
Emissions, noise and fuel
consumption remain low, while
power and torque are improved.
Lubrication.
The V8 engines use dry-sump
lubrication to ensure a consistent
supply of oil in all load conditions.
The oil reservoir is located inside
the engine. As well as saving
space and reducing weight, the oil
is always there where it’s needed.
Oil is circulated around the
V8 engines using a demand-driven
pump and two-stage scavenging
system, providing optimum
delivery in even the toughest
scenarios.
The V6 engine has a wet-sump
lubrication system that is
also designed for challenging
conditions, e.g., performance
road driving or extreme off-road
gradients.
A high-performance engine can
only maintain its optimum capability
over a long service life if all com-
ponents are operating consistently
within a specific temperature
range.
The V8 engines have an optimised
coolant management system offering
effective temperature control
throughout the engine. While 20 %
of coolant flows longitudinally
through the crankcase, 80 % serves
the cylinder heads using the
proven cross-flow principle (from
hot to cold).
On all Cayenne models, the piston
heads are cooled using oil-spray
jets integrated in the main lubrica-
tion system.
· 49 · · 48 ·

Controlling fuel delivery for optimum combustion.
Direct fuel injection (DFI).
Drive
designed to improve power, torque
and emissions. The swirling of the
injected fuel creates a homogenous
air/fuel mix, thereby enhancing
combustion.
At engine speeds up to 3,500 rpm,
a double injection process is used.
Here, the required fuel volume
is delivered in two successive
injections per working stroke. The
results are faster catalyst warm-up
and increased torque in the upper
load range. All four Cayenne engines feature
direct fuel injection.
As the name suggests, fuel is
injected directly into each
combustion chamber using electro-
magnetic injectors offering
extremely high precision in
terms of both timing and volume.
A high-pressure pump provides
the necessary pressure of up to
120 bar.
The injector position and spray
geometry have been carefully
From road to racetrack. At the push of a button.
‘Sport’ button.
Throttle response in ‘Sport’ mode
Throttle response
in ‘Normal’ mode
Both sets of characteristicsare dependent on engine
speed.
Pedal travel (%)
(%) Torque
(as percentage of maximum)
All Cayenne models have a
standard ‘Sport’ function with
a choice of comfort-oriented
(‘Normal’) or high-performance
(‘Sport’) setup.
When ‘Sport’ mode is enabled
using a button on the centre
console, the engine management
system selects a more ‘aggressive’
map for the electronic throttle.
The pedal response is quicker
and the engine more dynamic
and direct. On vehicles with
Tiptronic S, upshifts are performed
later, downshifts earlier. The
chassis control systems PASM
and PDCC (if present) are also
set to ‘Sport’ mode. Cars with
air suspension are lowered to
Low Level I, creating a firmer
ride, more positive turn-in and
better contact with the road.
The ‘Sport’ sound mode on the
sports exhaust system (standard
on Cayenne GTS; optional on
Cayenne S with Tiptronic S) is
also enabled when ‘Sport’ mode
is selected.
‘Sport’ button on centre console Comparison of electronic throttle map in ‘Normal’ and ‘Sport’ mode
By mixing the fuel and air directly
in the combustion chamber, DFI
contributes to engine cooling.
As a result, it was possible
to increase the compression
ratio and therefore output and
efficiency.
The engine management system
regulates the injection process
based on changing output require-
ments. Oxygen sensor circuits
are used to monitor emissions
and minimize impact on the
environment (see page 60). This
also reduces ownership costs.
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