2008 PORSCHE CAYENNE gearbox

The standard Porsche Traction
Management (PTM – see page 66)
combines permanent all-wheel drive
with an electronically variable
centre differential, two-speed transfer
gearbox, anti-slip regulation (ASR)
and automatic brake differential
(ABD). The results are excellent
dynamics and greater active safety.
The Cayenne models
The Cayenne V6 develops 213 kW
(290 hp) at 6,200 rpm. Maximum
torque of 385 Nm is available
from 3,000 rpm. The V8 unit in
the Cayenne S produces 283 kW
(385 hp) and 500 Nm of torque
from 3,500 rpm.
In the Cayenne GTS, the V8 engine
develops 298 kW (405 hp) at
6,500 rpm plus 500 Nm of torque
from 3,500 rpm. Maximum output
ratings on the Cayenne Turbo are
368 kW (500 hp) at 6,000 rpm
and as much as 700 Nm of torque
between 2,250 and 4,500 rpm.
The Cayenne, Cayenne S and
Cayenne GTS are all equipped as
standard with a high-performance,
high-precision six-speed manual
gearbox. Alternatively, there’s the
option of six-speed Tiptronic S,
which is standard in the Cayenne
Turbo. Maximum speeds with
Tiptronic S are 227 km / h (141 mph)
for the Cayenne, 250 km / h (155
mph) for the Cayenne S, 251 km / h
(156 mph) for the Cayenne GTS
and 275 km / h (171 mph) for the
Cayenne Turbo.
Direct fuel injection (DFI) increases
engine output while improving fuel
efficiency. The V6 Cayenne has
variable valve timing on inlet and
exhaust. The V8 models feature
VarioCam Plus,combining variable
valve timing with two-stage valve
lift on the inlet side. The results:
high performance, low fuel
consumption and low exhaust
emissions. Seemingly paradoxical,
yet typically Porsche.
For extreme off-road driving,
there’s t
he optional Off-road
Technology package (see page
88), which is
available for the
Cayenne, Cayenne S
and Cayenne
Turbo.
The science: always breaking new ground.
Engineering.
The Cayenne models have high-
capacity engines featuring a range
of innovative technologies. Each
car reconciles the two extremes
of high performance and low fuel
consumption. The Cayenne has a
3.6-litre V6, the Cayenne S and
Cayenne GTS have 4.8-litre V8s,
while the Cayenne Turbo tops the
range with a 4.8-litre twin-turbo V8.
· 17 · · 16 ·

Model range
Exceptional performance.
What else would you expect from a Porsche?
The Cayenne.
A high-performance six-speed
manual gearbox is standard
equipment. The optional six-speed
Tiptronic S includes gearshift
controls on the steering wheel.
It is also equipped with standby
control for better fuel economy
(see page 64).
The powerful brakes increase
active safety in all driving scenarios.
The black-finish calipers are unique
to the V6 model.
With its precision steering and
sports chassis setup, the Cayenne
is agile and responsive. Using
Porsche Traction Management (PTM)
and Porsche Stability Management
(PSM), power is transmitted through
the permanent all-wheel drive with
efficiency, precision and safety. In
difficult terrain, the electronically
variable centre differential combines
with the anti-slip regulation (ASR)
and automatic brake differential
(ABD) to maintain optimum traction
at all times. This ability is enhanced
in low-range mode, where all gear
ratios are reduced. As a result,
the car remains mobile in soft
ground and performs better when
towing a heavy trailer load. For
the toughest off-road conditions,
the electronically variable centre
differential can be fully locked while
in low-range mode using the PTM
control on the centre console.
The torque split is then fixed with
38 % of drive being transmitted
to the front wheels and 62 % to
the rear.
For extreme off-road use, there’s
the optional Off-road Technology
package. As well as increasing
underbody protection, it includes
an electronically variable rear
differential (see page 89). This
differential can also be manually
locked to increase off-road
traction.
The Cayenne is an excellent on-
road performer with a wide range
of other talents: off-road capability,
comfort, safety, sporting style and
practicality.
Its powerful V6 engine features
direct fuel injection (DFI), variable
valve timing on inlet and exhaust
and a variable resonance intake
manifold. The results: generous
performance and excellent fuel
economy.
The 3.6-litre engine develops
213 kW (290 hp) at 6,200 rpm.
Maximum torque is 385 Nm
from as low as 3,000 rpm. With
a manual gearbox, it requires
8.1 seconds to reach 100 km / h
(62 mph). Maximum speed is
227 km / h (141 mph).
Press the standard ‘Sport’ button
and the engine management is
adjusted to maximise throttle
response.
· 23 · · 22 ·

The Porsche ‘S’ has long been
a mark of heightened sports
performance. On the Cayenne S –
as on many cars before – it means
power, athleticism, more efficient
dynamics – even greater driving
pleasure.
To experience its effects, simply
drop down a gear on the six-speed
manual gearbox (option: six-speed
Tiptronic S) and open up the
throttle on the 4.8-litre V8 engine.
Thanks to direct fuel injection (DFI),
the effect is immediate with drive
transmitted to a set of 18-inch
Cayenne S II wheels. The car is
propelled to 100 km / h (62 mph) in
as little as 6.6 seconds. Maximum
speed is 252 km / h (157 mph).
The naturally aspirated V8 develops
283 kW (385 hp) at 6,200 rpm.
Maximum torque is 500 Nm
from 3,500 rpm. This exceptional
performance is, in part, achieved
with the aid of variable valve
timing and two-stage valve lift
(VarioCam Plus). This system is
also responsible for the smooth
running characteristics, significantly
improved fuel economy and lower
exhaust emissions.
The engine sound is typically
Porsche – even more so with the
optional sports exhaust system
(available in conjunction with
Tiptronic S). As well as enhancing
the acoustics of the car, it features
twin chrome-plated stainless
steel tailpipes. The sports exhaust
has a ‘Sport’ sound setting that
is automatically enabled when the
general ‘Sport’ mode is selected.
Reaches places that others can only dream of.
Like the heights of driving pleasure.
The Cayenne S.
The handling characteristics and
driving properties are exemplary
for a car of such versatility. Equally
impressive are the standard safety
systems, including larger brakes
with distinctive silver-finish calipers.
Porsche Stability Management (PSM)
is standard on all Cayenne models
and provides a further reduction in
braking distances (see page 98).
The Porsche Ceramic Composite
Brake (PCCB) is available as optional
equipment on the Cayenne S,
Cayenne GTS and Cayenne Turbo.
The driving dynamics can be
further enhanced with the optional
air suspension featuring Porsche
Active Suspension Management
(PASM – see page 76).
Model range
· 27 · · 26 ·

Breaking new ground.
On the road.
The Cayenne GTS.
Drive is transmitted through a
high-performance six-speed manual
gearbox or optional six-speed
Tiptronic S. The GTS model has
a shorter final-drive ratio than
the Cayenne S, which increases
acceleration. The benchmark sprint
to 100 km / h (62 mph) requires
just 6.1 seconds (with standard
manual gearbox). Maximum
speed is 253 km / h (157 mph).
The engine sound is specially
enhanced by the standard sports
exhaust system.
Developing the Cayenne GTS was
an exercise in what we do best:
more performance, more agility,
a more immediate driving experi-
ence. In short: more sport – both
visually and technically – designed
exclusively for the road.
The 4.8-litre naturally aspirated
V8 features direct fuel injection
(DFI). It also includes a range
of performance enhancements
compared with the Cayenne S.
The revised intake manifold and
engine management system
enable greater power and
efficiency. The results: 298 kW
(405 hp) at 6,500 rpm and
500 Nm of torque at 3,500 rpm.
Another special feature on the
Cayenne GTS is the combination
of steel-sprung sports suspension
and Porsche Active Suspension
Management (PASM) as standard
(air suspension available as an
option). The ride height has been
lowered by 24 mm (20 mm
on optional air suspension) to
improve handling and high-speed
stability. The car’s cornering
potential is immediately apparent
from the standard 21-inch
Cayenne Sport wheels.
Model range
· 31 · · 30 ·

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
· 43 · · 42 ·

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 ·

Drive
Precision control on road and track.
Comfort and durability on all terrain.
Six-speed manual gearbox.
Drive-off Assistant, which enables
easier hill starts without using the
brakes.
The gear linkage is insulated from
the engine and transmission,
thereby eliminating vibration in
the gear lever.
For additional weight saving, the
gearbox casing is made from
lightweight die-cast aluminium.
throw is short and precise, with
only minimal driver effort required.
Gearbox performance is equally
impressive in low-range mode.
All components are specifically
adapted for the demands of
off-road driving, e.g., deep water
crossings and gradients of up
to 45° in every direction. Special
features include the Porsche The Cayenne, Cayenne S and
Cayenne GTS are all equipped as
standard with a six-speed manual
gearbox. It is specially designed
for the heavy loads encountered
in high-performance, off-road and
towing use.
The sports-oriented setup enables
optimum progression through all
six forward gears. The gear lever
Gear lever
· 63 · · 62 ·

Drive
The convenience of an automatic.
The excitement of a sequential gearbox.
Six-speed Tiptronic S.
Each gearshift point is automatically
selected based on current road
conditions and driving style.
Within a short space of time,
you’ll develop a feel for the
system and begin to influence
gearshifts using the throttle alone.
The benefits of Tiptronic S are most
apparent in high-performance driving.
The immediacy of response, with
practically no interruption in drive,
is comparable with that of a manual
gearbox.
Tiptronic S automatically selects
the optimum gearshift pattern,
even in low-range mode. The
low-range gearing is available at
speeds of up to 15 km / h (9 mph).
You can also return to high-range
mode at up to 30 km / h (19 mph).
For complete manual control,
simply slot into manual and use
the gearshift controls on the
steering wheel. If you prefer, you
can use the gear selector lever
on the centre console. Even in
automatic mode, you can change
gear manually via the rocker
controls on the steering wheel.
If there is no further manual
input for a period of 8 seconds,
the system reverts to automatic
mode.
One of the special features in
Tiptronic S is standby control.
When the car is stationary in an
active gear position and with the
foot brake applied, the input
clutch automatically disconnects
the engine from the driveline,
thereby reducing fuel consumption.
Other useful functions include
a warm-up programme which
temporarily suppresses upshifts
in order to accelerate warm-up
in the catalysts and thus reduce
emissions. If rapid throttle inputs
are detected, the system automat-
ically selects the ‘Sport’ gearshift
pattern, i.e., there is no need to
use a ‘kickdown’ function. When
the throttle is released quickly, e.g.,
on entering a corner, unwanted
downshifts are prevented.
Mid-corner gearshifts are also
suppressed, enhancing stability
and safety.Under heavy braking, Tiptronic S
shifts down to maximise engine
braking. An incline sensor enables
better uphill acceleration and
better engine braking on descent.
Another special feature, Porsche
Hill Holder, permits easy hill starts
without the need to use the brakes.
The gearbox cooling system is
specifically designed to match
the performance, transport,
towing and off-road capabilities
of all Cayenne models.
Tiptronic S is standard equipment
on the Cayenne Turbo and optional
on the other three models. The
six forward ratios transmit power
with smoothness, efficiency and
precision – whatever your choice
of terrain.
In automatic mode, the gearshift
maps range from maximum
economy to maximum performance.
Tiptronic S gearshift control on steering wheel
Tiptronic S gear selector
· 65 · · 64 ·