2008 PORSCHE 911 GT2 wheel

· 49 · · 48 ·
The 911 GT2 |Chassis
The 911 GT2 is fitted with Porsche
Active Suspension Management
(PASM), an electronic damper
adjustment system. This active
damping system offers continuous
adjustment of individual damping
forces based on current road
conditions and driving style.
The driver can choose from two
basic setup modes: ‘Normal’ and
‘Sport’. ‘Normal’ mode is designed
for general road driving and wet
circuit use. ‘Sport’ mode enables
greater lateral acceleration and
increases traction on the race-
track.
In either mode, the system
responds to changing loads by
automatically applying the optimum
rate on each individual damper
from a range of predefined options.Various sensors are used to
monitor the movement of the body
during acceleration, braking and
cornering manoeuvres, as well as
on poor road surfaces. The PASM
control unit then evaluates this
data and modifies the damping
force on each individual wheel in
accordance with the selected
mode. The results are a reduction
in pitch and roll as well as con-
sistent road contact on all four
wheels.
If ‘Sport’ mode is selected using
the PASM button identified by a
damper symbol, the suspension is
set to a harder damper rating that
is specially designed for perform-
ance driving. If the quality of the
road surface falls below a certain
threshold, the system immediatelychanges to a softer rating within
the ‘Sport’ setup range. This
adjustment enhances occupant
comfort as well as traction and
grip. When the road surface
improves, PASM automatically
reverts to the original, harder
rating.
Rebound in ‘Sport’ mode –
damper piston with bypass
valve closedRebound in ‘Normal’ mode –
damper piston with bypass
valve open
Compression in ‘Normal’ mode –
damper piston with bypass
valve open
Compression in ‘Sport’ mode –
damper piston with bypass
valve closed
Redefining ‘normal’.
Porsche Active Suspension Management (PASM).

· 51 · · 50 ·The 911 GT2 |
Chassis
Some things never change,
including driver expectations of
a 911 GT2 : sports-oriented
performance, a direct response
and impressive power.
So Porsche Stability Management
(PSM) has been specially adaptedfor the 911 GT2. In addition to
ABS, the package includes two
automatic driver aids: stability
control (SC) and traction control
(TC).
Stability control (SC), which is
responsible for lateral dynamics,uses a range of sensors to moni-
tor the direction, speed, yaw
velocity (speed of rotation around
the vertical axis) and lateral
acceleration of the car. Using
this information, it is possible to
calculate the actual direction of
travel at any given moment. If thecar begins to oversteer or under-
steer, selective braking is applied
on individual wheels to restore con-
trol in critical driving scenarios.
Traction control (TC), with its
integrated ABD (automatic brake
differential), ASR (anti-slip regula-
tion) and EDC (engine drag-torque
control) functions, is responsible
for the longitudinal dynamics of the
car. Configured for sports-oriented
driving, traction control improveshandling under acceleration on
surfaces with inconsistent grip.
It also prevents the rear from
‘stepping out’ if a wheel loses
traction under full power. The
trigger threshold is relatively high,
which means it is rarely employed
in normal dry conditions.
A unique feature of PSM on
the 911 GT2 is that the control
interventions are delayed and
can be disabled completely in
two stages – for deliberate per-
formance handling.
Stage 1 disables the stability con-
trol (SC) via the ‘SC OFF’ switch in
the centre console. In ‘SC OFF’
mode, the control system does
not intervene if the car goes off-
course in the lateral direction,
which means the throttle can
be used to help steer the car.
Traction control (TC) is still active
in this mode.
Stage 2 disables the traction con-
trol as well via the separate
‘SC+TC OFF’ switch, giving the
driver full command of the vehi-
cle. Another unique feature is the fact that stability control
remains disabled in stages 1 and
2 even when the ABS is required
under braking. Specially develop-
ed for the 911 GT2, this revised
system strategy means the car
can also be enjoyed to maximum
effect on the racetrack.
The anti-lock braking system
(ABS 8.0) is integrated in PSM
and remains active, irrespective
of which settings have been
selected. ABS ensures a relatively
short braking distance and thus
enhanced safety.
It’s good to know who’s in control.
Porsche Stability Management (PSM).

· 53 · · 52 ·
The 911 GT2 |Chassis
The steering system is extremely
direct and provides detailed
feedback from the road. This
high level of precision is very
advantageous in both racing and
normal road use. Thanks to the
precise front-axle kinematics andthe variable steering ratio, the
car responds to every movement
of the wheel.
An important feature of the
steering system is the variable
ratio gearing. Around the straight-ahead position, the ratio
is less direct, enabling smoother
manoeuvres, such as during
motorway driving. There is less
risk of excessive steering inter-
vention destabilising the car at
high speed. Naturally, the systemprovides excellent feedback as
well as the usual agility. As the
wheel is turned harder, the ratio
becomes more
direct and the
steering more responsive. This
variability is
particularly beneficial
in low-speed hairpin bends. The
energy-absorbing steering column
is a key safety feature since, in
the event of a front-end impact, it
enables a deformation path of
100 mm.The intermediate steering shaft is
made from aluminium, while the
protective tube and steering lock
housing are die-cast magnesium.
The standard three-spoke GT2
steering wheel features manual
height and reach adjustment.
Used in conjunction with the seat
adjustment options, it enables
every driver to find the ideal seat-
ing position.
Maximum precision, however powerful the performance.
Steering.

· 71 · · 70 ·
The 911 GT2 |Comfort
Steering wheel.
The three-spoke GT2 steering
wheel can be manually adjusted
for height and reach. The steering
wheel is upholstered in Alcantara
and the airbag module has a
leather finish.
The multifunction steering wheel
and the three-spoke sports
steering wheel are also optionally
available in smooth-finish leather.
Interior materials.
The high-quality materials in the
interior of the 911 GT2 reflect its
sporting credentials: genuine
leather and Alcantara. Offering
exceptional grip and easy-care
properties, Alcantara can be found
wherever optimum hand contact isrequired: on the steering wheel
rim, gear lever, handbrake lever
grip and door handles, as well as
on the door panels, storage com-
partment lids and centre console.
The standard folding sport bucket
seats and the optional adaptive
sports seats are trimmed in blackleather, while the seat
centres are
covered with Alcantara.
A GT2 logo
is integrated in the rear bulkhead
lining.
The front centre console has
been totally redesigned and is
now predominantly trimmed in
classic black.
Three-spoke sports steering wheel
in smooth-finish leather

· 79 · · 78 ·
The 911 GT2 |Comfort
pairing is complete, the mobile
phone’s aerial is switched off to
conserve battery charge and the
phone operates via the car aerial.
Depending on the mobile phone
model, this gives access not only
to the numbers on the SIM card
but also to the phone’s internal
memory. Also, depending on the
phone, it can be controlled using
the PCM, the multifunction steering
wheel or the voice control system,
without it ever leaving your pocket.
Mobile phone preparation.
As an option, the mobile phone
preparation kit (with or without
cradle) is available for Bluetooth
®
connection of mobile phones
which only support the hands-free
profile (HFP). For connection by
HFP, the PCM acts merely as a
hands-free system. Here, too, the
mobile phone can remain tucked
away. Only the basic phone func-
tions can be operated using the
PCM. The GSM connection is
established via the aerial of the
mobile phone.**
Universal audio interface.
With this optional feature, the
storage compartment in the centre
console will contain three connec-
tions: one for your iPod
®, one
for a USB stick/MP3 player and
one as an AUX interface for any
chosen compatible audio source.
The iPod
®or USB stick can be
operated conveniently and safely
via the PCM, the multifunction
steering wheel or the voice control
system. The USB connection can
also be used to download data
from the performance display of
the Sport Chrono Package Plus
and the electronic logbook.
Sound Package Plus.
Fitted as standard is Sound Pack-
age Plus. A separate amplifier with
a total rated output of 235 Watts,
combined with nine speakers,
ensures a perfect sound for the
interior.
Electronic logbook.
The optional electronic logbook
allows automatic recording of
mileage, distance covered, date
and time, starting point and desti-
nation on each trip. Once you
have downloaded the logbooks
from the PCM via Bluetooth
®or
via the optional USB interface,
the data can be analysed on
your home PC using the software
supplied. The software complies
with all statutory requirements
for automatic logbooks as speci-
fied by the German revenue
authorities.
TV tuner.
A TV tuner, available as a option,
receives analogue and digital
television broadcasts (DVB-T) to
provide entertainment between
journeys. For your safety, the
TV picture cannot be displayed
while the vehicle is in motion.
Voice control system.
Almost all of the functions of the
PCM can be controlled via the
latest optional voice control sys-
tem. The menu item is read aloud
exactly as it is displayed on thescreen and the voice control
system recognises commands or
number sequences, irrespective
of the speaker. It gives audible
feedback and guides you through
the functions. There is no need to
‘train’ the system. Phone book
entries can be retrieved, a radio
station selected or the navigation
destination entered directly by
speaking whole words, rather than
dictating one letter at a time.
Telephone module.
The optional GSM telephone
module offers convenience and
excellent reception. By inserting a
SIM card directly into the PCM’s
integral SIM reader, calls can be
made using either the hands-free
facility or the optional cordless
handset. For even more conve-
nience, the Bluetooth
®capability
of a mobile phone can be used
to make calls via the SIM Access
Profile (SAP)*. Once automatic
TV tuner*/** Note: see page 97.

· 91 · · 90 ·
The 911 GT2 |Personalisation
Exterior.1)
Option I no. Page
• Metallic paint (no-cost option)WCode 88, 90
• Special colours
• •Code 89
• Deletion of model designation
W498
• ParkAssist (parking aid at rear)
• •635 74, 90
• Grey top tint on windscreen
• •567
• Automatically dimming interior/exterior mirrors with integrated rain sensor
• •P12 74
• Wheel centres with full-colour Porsche Crest
• •446 90
1)For exclusions and obligatory combinations of individual I numbers, please refer to the separate price list.
The vehicles pictured in the chapter on personalisation may include additional options not featured in this catalogue.
For information on these options, please consult your Porsche Centre.
For information on the options featured in this catalogue, please refer to the price list.
• •extra-cost option W no-cost option ParkAssist Metallic paint, wheel centres with full-colour Porsche Crest

· 95 · · 94 ·
The 911 GT2 |Personalisation
Interior: leather.1)
Three-spoke multifunction steering wheel in carbon, carbon interior package plus various options from Porsche ExclusiveNatural leather interior in Dark Grey
Option I no. Page
• Leather interior package in natural leather (Dark Grey)• •998 89, 94
•
Three-spoke sports steering wheel in smooth-finish leatherW46071
•
Three-spoke multifunction steering wheel in smooth-finish leatherW43171
1)For exclusions and obligatory combinations of individual I numbers, please refer to the separate price list.
The vehicles pictured in the chapter on personalisation may include additional options not featured in this catalogue.
For information on these options, please consult your Porsche Centre.
For information on the options featured in this catalogue, please refer to the price list.
• •extra-cost option W no-cost option
Interior: carbon.1)
Option I no. Page
• Interior package in carbon•
•EZA 94
• Three-spoke multifunction steering wheel in carbon
• •453 94

· 107 · · 106 ·
The 911 GT2 |Technical data
Technical data
Engine
Cylinders6
Displacement3,600 cm3
Max. power (DIN)390 kW (530 hp)
at rpm6,500
Max. torque680 Nm
at rpm2,200 – 4,500
Compression ratio9.0 : 1
Transmission
LayoutRear-wheel drive
Manual gearbox6-speed
Chassis
Front axleMcPherson-strut suspension
Rear axleLSA multi-link suspension
SteeringVariable steering ratio,
power-assisted (hydraulic)
Turning circle10.9 m
BrakesPorsche Ceramic Composite Brake (PCCB):
6-piston monobloc aluminium fixed calipers
at front, 4-piston monobloc aluminium fixed
calipers at rear, discs internally vented and
cross-drilled
Vehicle stability systemPSM
Anti-lock braking systemABS 8.0
WheelsFront: 8.5J x 19 ET 53
Rear: 12J x 19 ET 51
Ty r e sFront: 235/35 ZR 19 (sport tyres)
Rear: 325/30 ZR 19 (sport tyres)
Weights
Unladen weight (DIN)1,440 kg
Unladen weight (EC)*1,515 kg
Permissible gross weight1,750 kg
Performance
Top speed329 km / h (204 mph)
0 –100 km / h (0 – 62 mph)3.7 secs
0 –160 km / h (0 – 99 mph)7.4 secs
0 – 200 km / h (0 –124 mph)11.2 secs
Flexibility 80 –120 km / h (50 –75 mph) 4.1 secs
in 5th gear
Fuel consumption/emissions**
In accordance with 80 / 1268 /EC as valid at the time of going to print
Urban in l / 100 km (mpg)18.8 (15.0)
Extra urban in l / 100 km (mpg)8.9 (31.7)
Combined in l / 100 km (mpg)12.5 (22.6)
CO2emissions in g /km298
Dimensions /aerodynamics
Length4,469 mm
Width1,852 mm
Height1,285 mm
Wheelbase2,350 mm
Luggage compartment volume105 litres
Tank capacity (refill volume)90 litres
Drag coefficient0.32
** Weight is calculated in accordance with the relevant EC Directives and is valid for standard specification vehicles only.
Optional equipment means greater weight. The figure given includes 68 kg for the driver and 7 kg for luggage.
** The figures given refer to vehicles with standard specification in Germany. Data determined in the NEDC (New European Driving Cycle) in accor-
dance with the EU5 (80/1268/ EEC) measurement method in the version valid at time of going to print. The figures do not relate to an individual
vehicle, nor do they constitute part of the offer. They are intended solely as a means of comparing different types of vehicle. Further information
on the individual vehicles can be obtained from your Porsche Centre.