Porsche 911 GT3 - Manuel utilisateur

The new 911 GT3 WSLC0901123720 GB/WW

The new 911 GT3

From the inner sanctum

The new 911 GT3

For many motorsport is enjoyable.

For us it is a core value.

The new 911 GT3 6

Drive 18

Chassis 32

Safety 44

Comfort 56

Motorsport 66

Environment 76

Personalisation 80

Service 92

Summary 94

Technical data 96

Index 100

· 12 ·

The new 911 GT3 | The new 911 GT3

You can develop a sportscar from experience.

Or from the heart.

The new 911 GT3.

power and higher torque, resulting

in 320 kW (435 hp) at 7,600 rpm.

The maximum engine speed is

8,500 rpm and maximum torque is

430 Nm at 6,250 rpm. Impressive

values, especially if you look at the

performance figures it can achieve.

A smooth six-speed manual

gearbox effectively transmits

this power onto the road. The

gear-lever throw is short and

the handling precise.

With regard to propulsion, two

values sum up the potential power

of the new 911 GT3. Firstly,

acceleration: 4.1 seconds from

0 to 100 km/h (62 mph).

Secondly, maximum speed:

acceleration doesn’t stop until

the car reaches 312 km /h

(194 mph).

You might be able to build a

sportscar with experience alone.

But never a Porsche – and

especially not a 911 GT3.That

takes much more: engineers

who are dedicated to the develop-

ment of race cars right from

the start. Whose passion is for

motorsport, above all else.

Engineers who firmly oppose any

form of compromise. Developed

from the heart. The new 911 GT3.

At the heart of the new 911 GT3

is a new engine. A development

from motorsport, of course.

An engine with more power than

its predecessor, but with a

similar level of fuel consumption.

The key data: a flat-six Boxer

engine located right at the back

for a low centre of gravity and

increased traction on the drive

axle. The cubic capacity has been

increased to 3.8 litres. The engine

has advanced VarioCam, a system

for adjusting the inlet camshafts,

and now also the outlet cam-

shafts. This gives even more

Improved driving dynamics and

stability are achieved with the new

optional dynamic engine mounts

(page 34). This system reduces

vibration and the movement of

inert masses in the power unit

by automatically modifying the

stiffness and damping of the

engine mounts.

· 15 ·

The new 911 GT3 | The new 911 GT3

Porsche Active Suspension

Management (PASM, page 42)

ensures a responsive drive and

superior handling.

Everything that’s crucial for use on

the racetrack can be adjusted on

the chassis, including the settings

for height, camber, toe angle and

the anti-roll bars on the front and

rear axles.

Also, for the first time, the 911 GT3

has Porsche Stability Management

(PSM, page 40) with two control

systems: Stability Control (SC)

to provide stabilisation within the

limits of driving dynamics and

Traction Control (TC) to regulate

the longitudinal dynamics and

improve acceleration on various

road surfaces. Both systems can

be disabled completely in two

stages – for an active driving

experience on the racetrack.

One feature that has come directly

from motorsport is the central

locking device for the newly

designed 19-inch GT3 wheels

(page 38). The road-approved

sport tyres are designed to enable

higher cornering speeds, as

well as precision handling on the

road or racetrack. Tyre Pressure

Monitoring (TPM) is included as

standard.

Everything on the new 911 GT3

is designed to save weight. The

doors and front lid are made from

aluminium and the new engine

cover is made from a lightweight

synthetic material. The result:

a weight-to-power ratio of just

3.2 kg per hp.

Even everyday use has been

considered, with a new optional

ride-height lift system for the front

axle (page 37). At low speeds,

the front of the vehicle can be

raised by 30 mm if there is a

risk of it grounding.

Our approach to safety is as

uncompromising as usual, in terms

of both active and passive safety

features. New compound brake

discs with aluminium monobloc

calipers and a totally reinforced

but lighter braking system offer

excellent performance, even in

extreme conditions. The Porsche

Ceramic Composite Brake (PCCB,

page 50) is also available as an

option.

For additional protection on the

racetrack, a Clubsport package

(page 54) is available as a no-cost

option.

The latest in communication tech-

nology is also included with the

new standard CDR-30 audio system

or the latest optional Porsche

Communication Management (PCM,

page 63).

The new 911 GT3. Developed from

the heart so that you do not have

to make compromises.

The new 911 GT3 | The new 911 GT3

· 16 ·

combination with the front lip

spoiler, provide even more front-

end downforce. As is typical in

motorsport, all of the cooling

air inlets are protected by new

air inlet grilles with a dark grey

powder-coated finish.

The lights on the new 911 GT3

have also been completely

redesigned, with Bi-Xenon head-

lights fitted as standard. Indicators

and LED daytime running lights are

harmoniously integrated into the

separate front light units over the

outer air intakes.

At the rear, distinctive LED lights

are drawn right into the wing and

taper outwards. Unmistakable –

just like the new fixed bi-plane

wing.

This provides aerodynamic

downforce and greater driving

stability, even at the highest

speeds. It is made from light-

weight synthetic material and the

angle of incidence on the upper

wing profile can be adjusted for

use on the racetrack. Embossed

on the side of the rear wing:

‘3.8’. A reference to the engine

size and a clear indication of its

power.

In motorsport there are clear

rules. One of these is to push the

boundaries of performance. An

attribute that is clearly reflected in

the exterior of the new 911 GT3

with a design that follows function

in every respect.

The newly designed front air vents,

ahead of the front lid, channel

cooling air to the radiator and, in

The combined effect of all of

these aerodynamic refinements

is a low drag coefficient of just

0.32. The benefits are improved

downforce, better aerodynamic

balance, excellent road-holding

characteristics, better directional

stability and improved driving

safety.

Our core motorsport values can

be both felt and seen in the new

911 GT3.

Along ideal lines.

The aerodynamics and design of the new 911 GT3.

As the car’s speed increases, two

ram-air collector intakes on the

engine lid help to force additional

air into the intake manifold and

engine compartment.

Another distinctive feature of the

911 GT3 is the central, black

dual-tube tailpipe of the sports

exhaust system.

Drive

Many ignore the figures that come after the decimal point.

We measure ourselves against them.

· 21 ·

Powering the new 911 GT3 is a

water-cooled six-cylinder Boxer

engine with four-valve technology

and enhanced VarioCam variable

valve timing (page 24). It gener-

ates 320 kW (435 hp) from a

total displacement of 3,797 cm3.

The maximum torque is 430 Nm.

The maximum engine speed is

8,500 rpm.

The new 911 GT3 reaches

100 km/h (62 mph) in just

4.1 seconds, with a top speed

of 312 km/h (194 mph).

The weight-to-power ratio is

3.2 kg per hp and the new

engine provides an output of

115 hp per litre.

In short: the popularity of the new

911 GT3 is assured due to this

increase in power, yet similar fuel

consumption.

This efficiency is demonstrated

by the vehicle’s compliance with

the stringent requirements of

the Euro 5 emissions standard.

The new 911 GT3 | Drive

A consistent supply of oil to the

engine, even at times of high

lateral acceleration, is ensured by

a dry sump lubrication system

(page 24) with an external engine

oil reservoir. The oil is cooled by

an oil-water heat exchanger. Both

of these systems have proven

themselves on the racetrack.

An extremely lightweight titanium

connecting rod and lighter pistons

reduce oscillating masses, thus

ensuring dynamic engine speed

development. The inlet and

exhaust valves are actuated by

extremely lightweight tappets

and hydraulic valve clearance

adjustment. This enables a maxi-

mum engine speed of 8,500 rpm

which, together with the short

sporty gear ratios, provides

plenty of performance potential.

Added to this is a variable intake

manifold with two resonance

valves (page 26) which work

together with the sports exhaust

system to ensure efficient cylinder

charging and high throughput

rates. The large volume of the

exhaust system supplements the

low-resistance intake manifold

to improve cylinder charging and

increase performance.

The development of the new

engine. A challenge as always.

Which is why it is proof of our

core values.

3.8-litre Boxer engine

Perhaps the clearest evidence of our core values.

The engine.

911 GT3: 430 Nm at 6,250 rpm, 320 kW (435 hp) at 7,600 rpm

280

360

380

400

420

440

460

480

500

100

120

140

160

180

200

220

2000 3000 4000 5000 6000 7000

300

320

340

1000

Power (kW)

Engine speed (rpm)

 20

 40

240

260

280

520

540

Torque (Nm)

8000 9000

320 kW (435 hp)

300

560

580

320 600

340 620

360 640

430 Nm

19 18

1. VarioCam for inlet valves

2. VarioCam for outlet valves

3. Tappets with hydraulic valve

clearance adjustment

4. Inlet valves

5. Valve springs

6. Crankshaft

7. Intake camshaft

8. Camshaft drive chain

9. Tensioner rail

10. Forged aluminium piston

11. Titanium connecting rod

12. Nikasil-coated cylinder bore

13. Resonance valve

14. Throttle valve (electronically actuated)

15. Variable intake manifold

16. Separate engine oil reservoir

(dry-sump lubrication)

17. Oil filler pipe

18. Oil scavenge pumps for cylinder heads

19. Vacuum pump

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