2013 PORSCHE 911 GT3 Information Manual

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Dynamic engine mounts.
Simply responding at the limit means that
you’ve already lost. On sport y drives in
particular, it is essential not to underesti­
mate the unforgiving forces of physics.
Instead, they should be exploited in the
interests of dynamic per formance. This is
what we do with dynamic engine mounts.
The electronically controlled system
minimises the oscillations and vibrations
of the entire drivetrain, especially the
engine, and combines the benefits of a hard or soft engine mounting arrange
­
ment.
A hard engine mounting delivers optimum
dynamic performance because it offers
the highest degree of handling precision
possible. Soft engine mounts, on the other
hand, minimise oscillations and vibrations.
While comfort is improved on uneven
road surfaces, this comes at the expense
of dynamic performance. Our engineers have solved this problem
by enabling the engine mounts to adapt
their stiffness and damping performance
to changes in driving st yle and road sur
­
face conditions. This has been achieved
by use of a fluid with magnetic properties
in interaction with an electrically gener­
ated magnetic field.
Handling is perceptibly more stable under
load change conditions and in fast cor ­
ners. The dynamic engine mount system
also reduces the vertical oscillations of the engine when accelerating under

full load. The results are greater and
more uniform drive force at the rear
axle, increased traction and better
acceleration. Whenever a less assertive
driving st yle is adopted, the dynamic
engine mounts automatically soften to
provide a greater level of comfort.
Pushing to the limit is one thing. Staying
there is another.

Wheels and tyres.
Twent y inches instead of the 19 on the
predecessor model. Another improvement
to dynamic performance that brings you
closer to the sport y limit. The wheels
are platinum ­coloured and made from a
forged alloy.
The central locking device with ‘GT3’ logo
is derived from motorsport. Compared
with the conventional five ­bolt wheel con ­
nection, it offers enhanced performance
thanks to the reduction in rotating masses.
And, of course, it ensures a faster wheel
change, which is vital when you’re in the
pit and the clock is ticking. Tyre sizes are 245/35 ZR 20 on

9 J x 20 at the front and 305/30 ZR 20
on 12 J x 20 at the rear.

Road ­legal sports t yres on the new
911 GT3 help to provide the grip it
needs. Bear in mind, however, that the
reduced tread depth increases the
risk of aquaplaning on wet surfaces.
Tyre Pressure Monitoring (TPM) is fit ted
as standard in the new 911 GT3. Not only
does it send warnings to the on ­board
computer’s display screen in the event
of a gradual or sudden loss of pressure,
it also features a racetrack mode. This
takes into consideration the pressure and temperature characteristics of the t yres
on the circuit and precisely monitors
the pressure set in each individual t yre.
In other words, TPM is designed around
your sporting passion.
Porsche Active Suspension

Management (PASM).
This electronic active damping system
offers continuous adjustment of the
damping force on each wheel based on
the current driving situation and your
driving st yle.
At the press of a but ton, you can select
bet ween t wo different modes. ‘Normal’
mode is designed for sport y driving on
public roads and on wet racetracks.
‘Sport ’ mode is specially tuned for
maximum lateral acceleration and offers
the best possible traction on the track.
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Porsche Stability Management (PSM).
PSM is an automatic control system for
providing stabilit y at the limits of dyn­
amic driving performance. In addition to
the anti ­lock braking system, it includes
Electronic Stability Control (ESC) and
Traction Control (TC).
Sensors continuously monitor the direc ­
tion, speed, yaw velocit y and lateral
acceleration of the car. Using this infor ­
mation, PSM is able to calculate the
actual direction of travel at any given
moment. If the car begins to oversteer or
understeer, PSM applies selective braking
on individual wheels to restore stabilit y. What ’s special about PSM in the new
911
GT3? The systems intervene at the
limits of dynamic driving performance
with exceptional sensitivit y and precision.
In addition, the systems can be complete ­
ly deactivated in t wo stages for deliber ­
ately sporty handling.

Porsche Torque Vectoring Plus
(PTV Plus).
Porsche Torque Vectoring Plus is fit ted as
standard and has been specially adapted
to the new 911 GT3. It operates in con ­
junction with an electronically regulated
and fully variable rear differential lock.
Numerous driving parameter inputs are the basis for the system’s active control
outputs. The results are perceptible, par
­
ticularly at the limits of dynamic perfor ­
mance: greater traction, increased lateral
dynamics and a significant improvement
in driving stabilit y under the effects of
load changes in corners and when the car
changes lane. On surfaces with less grip,
such as in the wet, the system strategically
brakes the right or left rear wheel. This
means that, whenever the car enters a
corner, brake pressure is applied to the
inside rear wheel. Consequently, a greater
amount of drive force is distributed to the
outside rear wheel. This improves steering
behaviour and increases agility. In combination, both aspects of PT V Plus
offer tangible benefits, giving you
unrivalled pleasure at every t wist and
turn. It ’s just as well there happens

to be so many waiting on the racetrack.

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Brakes.
At the limit, you need one thing above all:
reserves. Not only for power, but for
safet y, too. This is possible only with a
race­proven technology on which the
driver can depend at all times. Only this
can free up extra room for manoeuvre,
especially in the red zone.
The new 911 GT3 is therefore equipped
with a particularly powerful yet light ­
weight brake system with a specifically
Driving at the limit.
But never beyond.
matched brake booster. The red six ­piston
aluminium brake calipers on the front axle
and the four ­piston equivalents at the
rear are designed as monobloc units. This
makes them tougher and enables a more
rapid response and release of the brake,
even under heav y loads.
That’s not all. The brake dimensions on
the new 911 GT3 have been enlarged to
cope with the increase in engine power.
The brake discs are 380 mm in diameter not only at the front but now also at

the rear. Thanks to their t wo ­piece
construction with cast iron brake discs
and aluminium brake chambers, they
reduce weight and thus the unsprung
and rotating masses. The brake discs
are cross ­drilled and internally vented
for powerful braking even in adverse
weather conditions. Or when pitted
against the challenges of motorsport.

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Porsche Ceramic Composite Brake
(PCCB).
From the start, Porsche has been synony­
mous with motorsport. Ever since 1948,
we have pushed the boundaries of
dynamic performance on the racetrack.
We have taken the experience we have
gained and applied it directly to the road.
The optional Porsche Ceramic Composite
Brake (PCCB) is a fine example. In numer ­
ous race series, including the Porsche
Mobil 1 Supercup, it has been proven to
withstand the harshest demands of the
track.
Nevertheless, resting on our laurels isn’t
our st yle. That ’s why we have also adapt ­
ed PCCB dimensions to match the perfor ­
mance capabilities of the new 911 GT3. The cross
­drilled ceramic brake discs are
now 410 mm in diameter at the front
and 390 mm at the rear for even more
formidable braking performance.
The use of six ­piston aluminium mono ­
bloc fixed brake calipers on the front
axle and four ­piston units at the rear –
all finished in yellow – ensures extremely
high brake forces which, crucially, are
exceptionally consistent.
PCCB enables shorter braking distances
in even the toughest road and race
conditions. Excellent fade resistance

provides greater balance when slowing
from racetrack speeds.
The key advantage of PCCB is the
extremely low weight of the ceramic
brake discs, which are approximately
50 % lighter than standard discs of a
similar design and size. As well as
enhancing performance and fuel econ­
omy, this represents a major reduction
in unsprung and rotating masses.
This results in bet ter road holding and
increased comfort, particularly on uneven
roads, as well as greater agilit y and
improved handling.
Please note that circuit racing, trackday
use and other forms of performance
driving can significantly reduce the
service life of even the most durable
pads and discs. As with conventional high
­performance braking systems, we
recommend that all brake components
be professionally inspected and replaced
where necessary after every track event.
Driver and passenger airbags.
We use advanced airbag technology in
the form of full ­size driver and front pas ­
senger airbags, which are inflated in t wo
stages depending on the severit y and
t ype of accident (e.g. frontal or offset
frontal). In less serious accidents, the air ­
bags are only partially inflated, thereby
minimising discomfort to the occupants.
Porsche Side Impact
Protection System (POSIP).
POSIP, fit ted as standard, consists of
side impact protection beams in the
doors and t wo side airbags on each side:
an integral thorax airbag is located in
each seat side bolster and an upwards ­
inflating head airbag is incorporated
within each door.
Additional safety features include the
headrests which form an integral part of
each seat, an energy ­absorbing steering
column, three ­point seat belts with pre ­
tensioners and force limiters and energy ­
absorbing elements in the dashboard.

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Clubsport package.
Always pushing to the max and rarely
easing off. Experiencing the excitement
without suffering the anxiet y. The limits
of dynamic driving performance obey
laws of their own. This requires superior
driving skills – and materials of superior
strength. The resilient Clubsport package – available on request at no extra cost –
provides additional protection on the
racetrack. The ideal platform for reaching
sport y extremes.
The Clubsport package comprises a roll
cage bolted to the body behind the front
seats, a six
­point racing harness in red supplied ready to install on the driver’s
side, a ready
­to ­install fire extinguisher
with mounting bracket and preparation
for bat tery master switch. This and the
front roll cage elements for race events
are available to purchase separately
from the Porsche Motorsport department.