fuel consumption PORSCHE 911 GT2 2010 5.G Information Manual

| 8
carbon air outlet in front of the
front lid guides the air flowing
through the central radiator up
over the vehicle, thus increasing
the downforce on the front axle.
Immediately noticeable are the
front wings which are 26 mm
wider, enabling a wider toe angle
and the use of wider tyres. The
19-inch GT2 RS wheels have a
white gold metallic finish.
A further striking feature is the
black ‘GT2 RS’ logo on the side.
The rear with a carbon middle
section makes an impression.
And the carbon lip on the fixed
rear wing sits 10 mm higher.
For extreme driving stability.
For greater efficiency and more
engine power, as the speed in-
creases, additional air is pressed
into the intake channel through
the air inlet channels in the wing
supports. This ram air system
builds up the air in front of the
Lightweight construction.
Anyone who wants to go beyond
the horizon has to work on their
performance – and concentrate
on strength. The way to achieve
this is to make sacrifices. But only
with regard to weight. The new
911 GT2 RS is 70 kg lighter than
the 911 GT2. Its weight-to-power
ratio: just 2.21 kg/ hp. For excel-
lent performance. And with rela-
tively moderate fuel consumption.
This is achieved thanks to a whole
series of modifications. In parti-
cular, the use of materials that
are more typically found in motor-
sport. The front lid, the side air
intakes on the charge air cooler,
the slats in front of the front lid,
the rear middle section, the rear
spoiler lip and the rear wing are
all constructed from carbon. As
are the lightweight bucket seats
and door sills with the ‘RS’ logo.
The front mud flaps are also
available in carbon as an option. Instead of the usual steel, the
diagonal struts on the rear axle
are made from aluminium. As are
the fixed calipers of the PCCB on
the front and rear axle. The engine
cover, rear window and rear side
windows are made from a synthetic
material. In addition to this, the
new 911 GT2 RS has light weight
door panels with side pads and
door pulls. Throughout the body,
much of the soundproofing has
been removed and the interior
soundproofing has also been
reduced.
The lightweight single mass
fly wheel makes the engine even
more responsive. Weight has
even been reduced in the body
structure: there are no fittings for
a roof transport system and there
are no reinforcements for fasten-
ing the seat belts in the floor.
The battery in the new 911 GT2 RS
is also lighter. A lithium ion battery
which provides an additional weight
saving of over 10 kg compared to the conventional standard battery
is available as an option. The
lithium ion battery is inserted in
the vehicle and can easily be

replaced by the standard battery
for use on the racetrack.
In addition, you can opt to do
without the CDR-30 audio system,
the air conditioning and the

Clubsport package. To achieve an
even lower power-to-weight ratio.
Design.
Even the appearance of the new
911 GT2 RS leaves no room for
doubt: it is more powerful than
before.
Power is demanding. So, with
regard to aerodynamics, the design
has been aimed at achieving the
best possible cooling and the
greatest possible downforce. The
large air inlets ensure that the air
is directed straight to the central
radiator and the front brakes. The turbochargers. This relieves the
turbochargers, thus lowering
exhaust gas back pressure and
increasing engine power.
To sum up: a drag coefficient
value of only
0.34. Along with
increased downforce on the front
and rear axles. For better road
holding, greater stabilit y and
excellent handling. In short, a
design that fulfils its purpose:
to create awe.

| 14
VarioCam Plus.
VarioCam Plus is a two-in-one
engine concept which adapts to
the particular demand for power.
The system switches seamlessly
thanks to the engine management
system. The result is spontaneous
acceleration and smoother run-
ning.
At medium revs and low engine
loads, the system reduces fuel
consumption and emissions by
lowering the valve lift settings
and advancing the timing. Fuel
economy is especially noticeable
at lower revs. High torque values
and maximum power are achieved
with the high valve lift setting,
which results in exceptional engine
power with comparatively low fuel
consumption.
Expansion intake manifold.
Essentially, in all intake systems,
as well as flowing through, the
air also vibrates. These vibrations
consist of both a compression
phase in which the air is com-
pressed and also an expansion
phase in which the air expands.
Until now, more air has meant
more power. The compression
phase of the air vibrations in the
intake system is used to press
more air into the combustion
chamber. The disadvantage is
that, when it is compressed, the
air is also heated. It is therefore
impossible to achieve optimum

ignition of the fuel and air mixture
to maximise power.The expansion intake manifold
adjusts the air vibrations in a com-
pletely different way. It uses the
expansion phase because, when
it expands, the air cools. The mix-
ture in the combustion chamber
therefore becomes cooler – and
optimum ignition can be achieved.
In using the expansion phase,
less air gets into the cylinders.
However, a slight increase
in the charge pressure by the
turbocharger compensates for
this effect. The heating of the
air caused by the higher charge
pressure is in turn compensated
by the charged air cooler. The
result is much higher efficiency
for even greater engine power
and improved fuel consumption

at high loads and engine speeds.
In principle it is quite easy to be in
awe: just breath deeply.
Power transmission.
The light weight six-speed gearbox
in the 911 GT2 RS is designed
specifically for the large amount
of engine power. The gear lever
throw is short and precise – for
rapid and precise gear changes.
Instead of a dual-mass flywheel as
in the 911 GT2, the 911 GT2 RS
uses a single mass flywheel. This
is lighter and the engine can rev
more freely in the upper speed
ranges. Also, the gear ratios have
been readjusted specifically for
use on the racetrack.

21 |
Porsche Ceramic Composite
Brake (PCCB).
Being in awe also means knowing
when
to brake – when necessary.
The new 911 GT2 RS is equipped
as
standard with the Porsche
Ceramic
Composite Brake (PCCB).
This braking technology has already
demonstrated its performance
credentials on the racetrack,
for example, in the vehicles of
the Porsche Mobil 1 Supercup.
Its
ceramic brake discs have a
diameter of 380 mm at the front
and 350 mm at the back – for
excellent braking power. The ceramic discs are made from
a specially treated carbon-fibre
compound that is silicated in a
high-vacuum process at approxi-
mately 1,700 °C. The resulting
brake discs are much harder and
therefore more resistant to exces-
sive temperatures than cast iron
discs. Typical of PCCB, the low
thermal expansion prevents defor-
mation under heavy braking. Fur-
thermore, the ceramic brake discs
are totally resistant to corrosion
and offer bet ter noise-damping
properties.The use of six-piston aluminium
monobloc fixed calipers on the front
axle and four-piston aluminium
monobloc fixed calipers on the
rear axle ensures a very high and,
above all, constant braking pres-
sure. The brake response is much
faster and more precise and
requires only moderate input.
All the necessary ingredients are
there for short braking distances,
especially in tough conditions.
And safety is also increased when
braking from high speeds, thanks
to the excellent fade resistance
of PCCB.
The key advantage of the ceramic
brake system is in the extremely
low weight of the brake discs: they
are approximately 50% lighter than
cast iron discs of similar design and size. In the new 911 GT2 RS
the calipers on the front and rear
axles are made from light weight
aluminium giving an additional
weight saving of approx. 4.8 kg
compared with stainless steel
calipers. This doesn’t just have
a positive effect on driving per-
formance and fuel consumption.
Above all, it means that the
unsprung and rotating masses
are reduced.
The result is improved road-

holding and comfort, especially on
uneven roads. As well as greater
agilit y and even bet ter handling.
Please note that circuit racing,
trackday use and other forms
of performance driving can sig-
nificantly reduce the service life
of even the most durable pads
and discs. As with conventional
high-performance braking sys-
tems, we recommend that all
brake components be profession-
ally inspected and replaced where
necessary after every track event.
Safety means being able to rely on the
systems working in the background.

25 |
Instruments.
The instruments in the new
911 GT2 RS are designed for
pure sports performance. They
provide quickly accessible infor-
mation and are ergonomic and
clearly visible – just like the rev
counter with a titanium blue dial
located in the centre of the five
round instruments. The instru-
ment needles and dial markings
are coloured yellow. For optimum
acceleration, the gearshift indica-
tor is located in the rev counter.
The integrated on-board compu-
ter provides you with information
on boost pressure, average fuel
consumption, speed and distance
lef t to travel.
Interior materials.
The materials used in the interior
meet the demands placed
on a thoroughbred racing car.
Alcantara, for example, which
offers exceptional grip and
easy-care properties.
So red Alcantara has been used
wherever there is hand contact.
On the steering wheel, gear lever,
handbrake lever and the door
handles. Also on the arm rests
in the door panels, the storage
compartment lid in the central
console, the roof lining and the
centre of the seats.
It provides a sport y contrast with
the otherwise predominant colour
in the interior: pure black.This sporting trend continues
with a material that is typical of
motorsport: carbon. The standard
lightweight bucket seats are made
from carbon and are covered in
leather/Alcantara. The badges on
the dashboard and the door sills
have a carbon finish and bear the
‘RS’ logo.
At no extra cost a black leather
trim with either red or black
Alcantara is available.
Steering wheel.
The three-spoke GT2 RS steering
wheel has manual reach and
height adjustment. It is upholstered
in Alcantara to ensure a good grip.
A striking feature is the yellow top
centre marking on the steering
wheel.
Lightweight bucket seats.
Fit ted as standard in the new
911 GT2 RS are lightweight carbon
bucket seats (page 32). They are
designed to provide exceptionally
good side support and feature
manual fore/aft adjustment. In
place of a thorax airbag, the door
panels have no storage pocket and
are padded. The lightweight bucket
seats together weigh only about
20 kg – for a noticeable weight
reduction. The seats are covered
with black leather with the seat
centres in red Alcantara.
Sports bucket seats.
Available as an option are sports
bucket seats (page 32) with a
folding backrest, integrated thorax
airbag and manual fore/aft adjust-
ment. The backrest shell is made
from glass and carbon-fibre
reinforced plastic with a carbon
surface. Depending on the
trim, the seats are covered in
leather/Alcantara in black/red
or black/black.
Adaptive sports seats.
Available as a no-cost option in
the new 911 GT2 RS are adaptive
sports seats with thorax airbag
(page 32). They feature electric
fore/aft, height and seat squab
angle adjustment and the side
bolsters on the seat and backrest
can be adjusted individually.
For the perfect fit to provide
side support when cornering
and greater comfort on straight
stretches. Depending on the

trim, the seats are covered with
leather/Alcantara in black/red
or black/black.
Completely free space.
Now also on the inside.

35 |
Fuel consumption/emission2), 3)
Urban in l/100 km (mpg) 17.9 (15.8)
Extra urban in l/100 km (mpg) 8.7 (32.5)
Total in l/100 km (mpg) 11.9 (23.7)
CO
2 emissions g/km 284
Dimensions/aerodynamics
Length 4,469 mm
Width (including exterior
mirrors) 1,852 mm (1,952 mm)
Height 1,285 mm
Wheelbase 2,350 mm
Luggage compartment volume 105 litres
Tank capacity (refill volume) 90 litres
Drag coefficient 0.34
1) According to the EC standard, the unladen weight applies to standard -specification vehicles.
Optional equipment increases the weight. The figure given includes 68 kg for the driver and 7 kg for luggage.
2) Provisional figures; there are no of ficially tested values available at the time of going to print.
Final, of ficially tested values can be obtained from your Porsche Centre.
3) The figures have been obtained using the method specified in 80/1268 EEC, latest version at the time of going
to print. 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. Further information on individual vehicles
can be obtained from your Porsche Centre. Fuel consumption is determined on the basis of the standard
specification. Optional equipment may influence fuel consumption and performance.

The models featured in this
publication are approved for road
use in Germany. Some items of
equipment are available as extra-
cost options only. The availability
of models and options may vary
from market to market due to
local restrictions and regulations.
For information on standard
and optional equipment, please
consult your Porsche Centre.
All information regarding con-
struction, features, design,
performance, dimensions, weight,
fuel consumption and running
costs is correct at the time of
going to print. Porsche reserves
the right to alter specifications
and other product information
without prior notice. Colours may
differ from those illustrated.
Errors and omissions excepted.
© Dr. Ing. h.c. F. Porsche AG, 2010
All text, images and other
information in this publication
are copyright of
Dr. Ing. h.c. F. Porsche AG.No part of this publication may
be reproduced, transmitted,
or otherwise used, without from
the prior written consent
of Dr. Ing. h.c. F. Porsche AG.
Porsche, the Porsche Crest,
911, Carrera, Tequipment,
PCCB, PCM and PSM are
registered trademarks of
Dr. Ing. h.c. F. Porsche AG.
Dr. Ing. h.c. F. Porsche AG
supports the use of paper from
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is printed on paper made from
100% PEFC certified pulp
(Programme for the Endorsement
of Forest Certification).
Dr. Ing. h.c. F. Porsche AG
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70435 Stut tgart
Germany
www.porsche.com
Ed i t i o n: 01/ 2010
Printed in Germany
WSLC 1001000320 GB/ WW