2013 PORSCHE 911 GT3 ECO mode

Engine.
Located just above the tarmac and posi­
tioned low down in the rear is the newly
developed water ­cooled six ­cylinder alu ­
minium engine with four valves per cylin ­
der, VarioCam and a separate engine
oil tank.
This high ­revving concept promises excep ­
tional
power. The engine has a maximum
speed of 9,000 rpm.
Maximum torque
of 440
Nm is available at 6,250 rpm and
maximum power output is
produced
at 8,250 rpm. Particularly light weight
Two hundredths of a second are worlds apart.
What are we waiting for?
titanium connecting rods facilitate the
unit’s impressive rpm capability.
The engine taps into its capacit y of
3.8 litres to generate a maximum power
output of 350 kW (475 hp). This corre ­
sponds to a power output per litre of
92 kW (125 hp). The new 911 GT3 tears
acceleration limits asunder: it sprints
from 0 to 100 km/ h in just 3.5 seconds –
0.6 seconds faster than its predecessor.
The 200 km/ h mark is also reached
0.9 seconds sooner, after precisely
11. 4 s e c o n d s .
How is that possible? Thanks to a weight
­
to ­power ratio of only 4.1 kg / kW
(3.0 kg / hp), a great deal of fine ­tuning
and the short transmission ratios of
Porsche Doppelkupplung (PDK). These
increase torque and acceleration potential
in all seven gears. Limits? The new
911 GT3 accepts that only the other side
of the 315 km/ h mark is beyond its reach.
Direct fuel injection (DFI), fitted in a
911 GT3 model for the first time, makes
a decisive contribution to the efficiency
of the engine – and its power output. It does it with millisecond precision and

a pressure of up to 200 bar for optimum
mixture formation and combustion in the
combustion chamber.
For fuel consumption, CO
2 emissions and efficiency class, please refer to page 91.

Thrust I 27
This is how it works. PDK is essentially
t wo gearboxes in one and thus requires
t wo clutches. This double clutch
arrangement provides an alternating,
non­positive connection between the
t wo half gearboxes and the engine by
means of t wo separate input shafts.
During a gear change, therefore,
one clutch simply opens and the other
closes at the same time, enabling
gear changes to take place within
milliseconds. Highly responsive and especially sport y – just as you would
expect of the 911
GT3.
That in itself has consequences, not least
for acceleration, for overall performance
and for fuel economy. Positive conse ­
quences in fact. Driving feels even more
dynamic and agilit y is increased.
What about the gear changes them ­
selves? You’ll feel them and you’ll hear
them. Just like before, or indeed more
than ever. The electronic gearbox control logic of the Intelligent Shift Program (ISP)
offers more immediate and faster traction
­
induced upshifts and throttle ­blip down ­
shifts on overrun. In PDK SPORT mode,
downshifts under braking are more
aggressive while, under acceleration, the
shift points are raised even further. So
changing up a gear becomes a physical
experience – and an emotive one.
Shift fast without a moment ’s hesitation.
Just like the professionals.
For fuel consumption, CO
2 emissions and efficiency class, please refer to page 91.

Environment.
We’ve already spoken about our contribu­
tion to motorsport. To be more precise,
about our responsibility for the future of
motorsport. We meet this responsibility
with intelligent technology, unconven ­
tional ideas and optimum performance.
Our approach to environmental protec ­
tion is no different. In an era of intensify ­
ing debate about global climate change
and CO
2 emissions, every automotive
manufacturer is asking what it has to
offer right now. Our answer has long
been the same: high power output
combined with high efficiency.
Porsche has managed to reduce fuel
consumption significantly across all
model ranges compared with the respec ­
tive previous model even though perfor ­
mance has been increased. This is made
possible by an efficient drive concept,
lightweight construction, optimised
aerodynamics and low rolling resistance.
The environmental management team
at the Porsche Development Centre in
Weissach aims to demonstrate a high
level of environmental responsibility. Here, technological developments are
carried out with environmental protection
in mind. The goal is to enhance perfor
­
mance – but preferably not at the expense
of the environment.
Fuel economy and recycling.
Intelligent lightweight construction has
been part of Porsche DNA since 1948 –
for both technological and ecological
reasons. And, of course, with competitive
advantages in mind. In motorsport, weight
is increasingly the number one factor
of success. Lightweight construction is
therefore the basis for low consumption
The true challenge:
not merely getting faster, but better.
values combined with outstanding
performance.
On the technical side, various compo ­
nents are made with a high proportion
of aluminium, magnesium, plastics and
super ­high ­strength sheet steel. The
materials used have been selected for
their abilit y to withstand load, yet they
are considerably lighter overall than
conventional steel.
Pit stop I 71

On the ecological side, all materials used
are meticulously selected. Each light­
weight material is easily recyclable
and all plastic components are labelled
to facilitate separation for recycling.
The
reduction in the number of plastic
variants helps to ensure more efficient
recycling. Recycled plastics are used
where they meet our exacting technical
requirements.
In short, the new 911 GT3 is around 95 %
recoverable. In addition, Porsche uses a
high proportion of environmentally friendly
water ­based paints. For us, environmental protection does not begin at the end of

a vehicle’s life. It starts at the planning
and development stage.
Emission control.
The new 911 GT3 meets the strict Euro 5
emission standard in the EU and LEV II
in the USA. Vehicles manufactured by
Porsche demonstrate that even high ­
performance sports cars can achieve
moderate emission values in their
respective category. This puts the new
911 GT3 among not only the most powerful sports cars of the future, but
also the cleanest.
This has been accomplished not least by
the t wo cataly tic converters and stereo
Lambda control circuits, which monitor
each cylinder bank separately. For each
exhaust tract, t wo Lambda sensors regu
­
late the composition of the exhaust gas.
Another Lambda sensor for each cylinder
bank monitors pollutant conversion in the
respective cataly tic converter.
Fuel.
All Porsche models – including the new
911 GT3 – are designed to operate on
fuels with an ethanol content of up to
10 %, e.g. ‘E10’. Ethanol has a positive
impact on the CO2 balance since the
plants grown for the production of
this biofuel also absorb CO
2 from the
atmosphere.
The release of hydrocarbons from the
fuel system has been minimised thanks
to the active carbon filter and the
multi ­layered material from which the
fuel tank is made. All fuel lines are
made from multi ­layered plastic, steel
or aluminium.
For fuel consumption, CO2 emissions and efficiency class, please refer to page 91.
72 I Pit stop

80 I Personalisation
OptionI no. Page
Interior: leather.
Leather interior package in black•Code80
Leather interior with decorative stitching in red
•749
GT3 SportDesign steering wheel in black smooth ­finish leather
■840 52
Audio and communication.
CDR audio system1)•55
CDR Plus audio system
1)•P25 55
Porsche Communication Management (PCM) including navigation system
1), 3)•P23 57
Sound Package Plus
•490
Digital radio
4)•691
Mobile phone preparation
2)•619
Telephone module
2)•666
Voice control system
2)•671
Six ­disc CD autochanger
1)•692 57
Six ­disc CD/ DVD autochanger
1)•693 57
Sport Chrono Package
•639/640 57
1) May be incompatible with some copy ­protected CDs (CDR) or audio CDs/ DVDs
(CDR Plus, PCM).
2) Mobile phone preparation or telephone module in HFP mode: The use of a mobile
phone inside a car may cause an increase in the interior electromagnetic field
strength and, accordingly, in the electromagnetic radiation to which passengers
are exposed. If a cradle is used to mount the mobile phone, the field strength in
the passenger compartment can be reduced because the phone can be connected
up to the external aerial (feature depends on how specific mobile phones connect
to the cradle). For information about the availabilit y of a cradle for your mobile
phone, please contact your Porsche Centre. The use of the telephone module for
PCM via Bluetooth
®, SAP connection or with inserted SIM card prevents exposure
to electromagnetic radiation as only the car’s external aerial is ever used.
3) For information on compatibility with your client device, please contact your
Porsche Centre.
4) Dependent on local network availability.
I number/extra ­cost option• Standard equipment■ Available at no extra cost
Leather interior with decorative stitching in red, seat belts in Guards Red and other optional equipment
Personalisation I 81