2013 PORSCHE 911 GT3 transmission

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.

Porsche Doppelkupplung (PDK).
It ’s the year 1984. Porsche unveils the
962 and a turbocharged flat­six engine
capable of producing 500 kW (680 hp).
It ’s a racing car intended to push through
existing limits and write its own motor ­
sport histor y.
Now ­legendar y victories were to follow
in Le Mans 1986 and 1987, introducing
Derek Bell, Hans ­Joachim Stuck and
Al Holbert in a C version of the 962.
A secret of its success was the double ­
clutch transmission that Porsche had
Motorsport history can be written in 60 years.
Or in milliseconds.
been continually refining since the 1960s.
In the Porsche 962C, it enabled extreme ­
ly fast gear changes, shaving off seconds
in motorsport and minutes in the 24 ­hour
race.
The subsequent transfer from the race ­
track to series production was equally
successful. Today, Porsche Doppel­
kupplung (PDK) is set ting standards on
the road, with gear changes that take
place in milliseconds and with no inter ­
ruption in the flow of power to provide
faster acceleration and low fuel con­
sumption. And yet our engineers still were not

satisfied – at least, not with the develop ­
ment of the new 911 GT3. So they
pushed the limits once again. Their goal
was to produce a transmission with gear
ratios specific to the 911 GT3 and with
a 50 % reduction in shift throw on the
even crisper and more dynamic gearshift
paddles. The result was a PDK perfectly
tuned to match the 3.8 ­litre engine. This
is the first time that it has been fit ted in
a 911 GT3, and it comes as standard. Goal achieved. Racing feel included,

with seven performance ­oriented gears
where even 7th gear has a sports ratio
engineered for maximum speed. Manual
operation of the 911 GT3 ­specific gear
selector is based on the established
motorsport principle: back to shift up,
forward to shift down.
Thrust I 25

60 I Pit stop
Motorsport.
Competing for every hundredth of a
second and calling on over 60 years of
experience – that ’s Porsche Motorsport.
But what ’s our motivation? Everyone
who drives us forward with 100 % passion
and expertise – from the driver to the
engineer. On all racetracks in the world.
Everyone who shares the same dream,
a dream that has been a realit y for
generations: Ferry Porsche’s dream of
a car that ought to be just as capable
of winning as it is suitable for everyday
use. And has so far led to more than 30,000 racing victories. Take, for exam
­
ple, the Porsche 956 – one of the most
successful race cars of all time. Not
to forget the other cars that promise
the very same potential, such as the
911 GT3 RSR or the 911 GT3 Cup.
Two racing machines that have proven a
success in circuit and endurance events.
As successful as the entire brand, Porsche
Motorsport has so far built more than
3,000 race cars, over 1,000 of which are
still in use today. They appear at the
lowest amateur levels and line up at the very pinnacle of the sport, competing

in US GT races and in over 19 one ­make
championships, including the Porsche
Carrera Cup Germany and the Porsche
Mobil 1 Supercup. New destinations
await, not least the 24 Hours of Le Mans
in 2014. A protot ype newly conceived
from the ground up is set to take to the
grid with a view to extending the run
of 16 outright wins at the Sarthe circuit.
For Porsche, however, what matters even
more than a place on the winners’ podi ­
um is how much experience is gained, as well as the ideas and visions that the
race inspires. All findings from the race
­
track are transferred into series produc ­
tion as design and test principles. Our
exhaust turbocharging or double ­clutch
transmission technologies are t wo exam ­
ples. This proximit y bet ween the race ­
track and the road is unique. It lets every
Porsche customer take part in the race –
directly or indirectly. It lets the customer
feel what drives us. Yesterday, today
and tomorrow: Spirit. Vision. Principle.
For all those who are not thinking about the 7:30 early flight to London.
And are thinking instead about lap times on the Nürburgring.

Technical data I 9190 I Technical data
Engine
C y linders6
Displacement 3,79 9 c m
3
Max. power (DIN)
at rpm 350 kW (475 hp)
8,250
Max. torque
at rpm 440 Nm
6,250
Induction Direct fuel injection (DFI)
Transmission
LayoutRear­wheel drive
Gearbox 7­speed Porsche Doppelkupplung (PDK)
Chassis
Front axle McPherson strut suspension
Rear axle LSA multi­link suspension
Steering Variable steering ratio, power­assisted, electromechanical
Turning circle 11.1 m
Brakes Six­piston monobloc aluminium fixed brake calipers
at front and four ­piston units at rear, composite brake
discs internally vented and cross ­drilled
Chassis
Vehicle stabilit y system Porsche Stability Management (PSM)
t wo­stage (ESC OFF, ESC+TC OFF)
Anti ­lock braking system ABS 8.0 (integrated into PSM)
Standard wheels Front: 9 J x 20 ET 55
Rear: 12 J x 20 ET 47
Standard tyres Front: 245/35 ZR 20 (sports t yres)
Rear: 305/30 ZR 20 (sports t yres)
Weights
Unladen weight (DIN) 1,4 3 0 k g
Unladen weight EC
1)1,5 05 k g
Permissible gross weight 1,720 k g
Performance
Top speed 315 k m / h
Acceleration 0 –100 km/ h 3.5 secs
Acceleration 0 –160 km/ h 7.5 secs
Acceleration 0 –200 km/ h 11.4 secs
Fuel consumption/emissions2)
Urban in l/100 km 18.9
Extra urban in l/100 km 8.9
Combined in l/100 km 12.4
CO
2 emissions g/km 289
Efficiency class3)
Efficiency class (Germany) G
Ef ficiency class (Switzerland) G
1) Weight is calculated in accordance with the relevant EC Directives and is valid for vehicles with standard specification only. Optional equipment increases this figure. The figure given includes 68 kg for the driver and 7 kg for luggage.2) Data determined in the NEDC (New European Driving Cycle) in accordance with the Euro 5 (715/2007/ EC, 692/2008/ EC and ECE ­R 101) measurement method. The figures do not refer to an individual vehicle nor do they constitute part
of the of fer. They are intended solely as a means of comparing dif ferent t ypes of vehicle. Fuel consumption calculated for vehicles with standard specification only. Actual consumption and per formance may var y with items of optional
equipment. A vehicle’s fuel consumption and CO
2 emissions depend not only on its ef ficient use of fuel but also on driving st yle and other non ­technical factors. The latest Porsche models with petrol engine are designed to operate on
fuels with an ethanol content of up to 10 %. You can obtain further information about individual vehicles from your Porsche Centre.
3) Valid in the countries listed only.
Tyre identification
Ty r e t yp e SizeFuel efficiency class/
rolling resistanceWet grip class
External rolling noise*
class
External rolling noise
(dB)
Sports t yres (S) 245/35 ZR 20GA 69
Sports t yres (S) 305/30 ZR 20EA 72
Dimensions/aerodynamics
Length 4,545 mm
Width
(including exterior mirrors) 1,852 mm (1,978 mm)
Height 1, 269 m m
Wheelbase 2,457 m m
Luggage compartment
volume (German Car
Manufacturers’ Assoc.) 125 l i t re s
Tank capacity (refill volume) 64 litres
Drag coef ficient 0.33
For logistical and technical reasons relating to the production process, we are unable to accept orders for a particular make of t yre.
* Quiet rolling noise, Moderate rolling noise,
Loud rolling noise.