ground clearance PORSCHE 911 GT3 2010 5.G Owners Manual

5
Development philosophyPorsche 911 GT3 stands for a sports car with
exceptional performance, both on the road and on
the race track. This objective means that, in the
event of any compromise being required between
sportiness and comfort during the development
process, the tendency will be geared more
towards sportiness. This can result in the following
restrictions in comfort:
– Brake squeal when light pressure applied to
the pedal shortly before stopping.
– Rough engine operation in speed range around
3000 rpm.
– Cracking noise in area of front-axle coil
springs.
– Greater operating force for clutch and gear
shifting.
– Aerodynamic-related extremely low vehicle
position with restrictions in terms of ground
clearance.Sport tiresYour vehicle is equipped with special sport tires
(ultra high performance tires).
This type of tire is approved for use on public
highways and complies with all statutory require-
ments and safety criteria.The design of the tire is also geared towards use
on racing circuits (driver safety training courses,
sports driving schools, Club Sport events) and
provides distinct advantages here in terms of dry
grip and wear compared to conventional road
tires.
The major features are a reduced tread depth and
a special tread pattern and carcass.
Due to ultra high performance design and the
particular manufacturing process of these tires,
they must always be replaced in axle sets (2)
regardless of wear or mileage. Failure to do so
may have a negative affect on the handling charac-
teristics of the vehicle.
The design features of this sports tire result
in the following effects compared with other
summer tires when used under normal
driving conditions:
– Sport tires have a smaller tread depth, and
thus can reach their wear limit sooner.
As with all tires, the attainable mileage
depends on the individual driving style and the
conditions of use.
– Exercise caution when driving on wet roads,
paying special attention to hydroplaning situa-
tions (stagnant water, puddles, lane grooves).
Sport tires have a lower tread depth than
normal tires and you must therefore adapt
speed accordingly when driving on wet
surfaces.– The driver’s skill level must be commensurate
with the vehicle performance levels in the
upper range limits, due to increased safety
risks in the upper range limits.
fAt oudside temperatures below 45 °F (7 °C)
change to winter tires.
fNotify anyone using your car of these charac-
teristics and possible effects.
Danger!
Risk of accident through loss of road surface
contact, control over the vehicle and braking
ability, leading to serious personal injury or
death.
The reduced tire tread depth means that
there is an increased risk of hydroplaning on
wet roads.
fWhen driving on wet or mud-covered roads reduce speed significantly. Danger!
Risk of accident from worn tires.
Sport tires have a smaller tread depth, and
thus can reach their wear limit sooner.
It is important to check tire wear frequently
to avoid risk of serious personal injury or
death from worn tires.
fCheck tire wear frequently.
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6Service brakeBoth the standard brake system with composite
brake discs and the Porsche Ceramic Composite
Brake (PCCB) are high-performance brake
systems, designed specifically for driving on race
circuits.
Certain speeds, braking forces and ambient condi-
tions (e. g. temperature and humidity) therefore
might cause brake noises. This also applies after
completion of the running-in phase required for the
new brake components.
Wear on the different components of the braking
system, such as brake pads and brake discs,
depends to a great extent on the individual driving
style and the conditions of use and therefore
cannot be expressed in actual miles on the road.
The values communicated by Porsche are based
on normal operation adapted to traffic. Wear incre-
ases considerably when the vehicle is driven on
race tracks or through an aggressive driving style.
fPlease consult an authorized Porsche dealer
about the current guidelines in effect before
such use of your vehicle.
Aerodynamic componentsTo benefit from the high driving performance
without impairing the driving safety or the service
life of the vehicle components, certain vehicle
parts must be always fully operational while
driving.
fRegularly check your vehicle for signs of
damage.
Damaged, worn or missing aerodynamic
components such as spoilers or underside
panels affect driving behaviour and must there-
fore be replaced immediately.
To optimize the cooling of the brake discs, air
brake spoilers are fitted to the front and rear
running gear control arms as well as special air
brake ducts on the rear axle.
If these air-brake spoilers or air-brake ducts are
not fitted and there is a high thermal demand on
the braking system, the service life of the brake
discs could be reduced.
Brake wear expectations are based on normal
operations in street traffic. Wear increases consi-
derably when the vehicle is driven on race tracks
or with an aggressive driving style. Wear will also
increase considerably if the brakes are not
warmed up before being raced.
The aerodynamic stability of the vehicle is influ-
enced considerably at high speeds by the front lip.Due to the reduced ground clearance required for
optimization of road handling, the front lip and the
air-brake spoilers have to be placed in exposed
positions to fulfil their function. They can be
damaged, for example by ground or curbstone
contact.
SeatingYour car has two seats.
The area behind the seats is not intended for
passengers.
Danger!
In the event of an accident, serious personal
injury or death can result.
fNever allow anyone to sit in the area behind the
seats.
Persons occupying the area to the rear of the
two seats will not have a safety belt or airbag
protection, and in the event of an accident,
would be thrown around within or to the
outside of the vehicle compartment with
probable serious personal injury or death as the result.
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8Ground Clearance
Caution!
Risk of damage. The vehicle may touch the
ground as a result of reduced ground
clearance.
fDrive carefully and slowly on steep slopes (e.g.
parking lots, curbs, uneven roads, lifting
platforms etc.).
fAvoid steep ramps.Engine Exhaust
Danger!
Engine exhaust is dangerous if inhaled.
Engine exhaust fumes have many compon-
ents which you can smell. They also contain
carbon monoxide (CO), which is a colorless
and odorless gas.
Carbon monoxide can cause unconscious-
ness and even death if inhaled.
fNever start or let the engine run in an
enclosed, unventilated area.
It is not recommended to sit in your car for
prolonged periods with the engine on and the car not moving.California Proposition 65 Warning
Warning!
Engine exhaust, some of its constituents, and
certain vehicle components contain or emit chemi-
cals known to the State of California to cause
cancer and birth defects or other reproductive
harm.
In addition, certain fluids contained in vehicles and
certain products of component wear contain or
emit chemicals known to the State of Ca lifornia to
cause cancer and birth defects or other reproduc-
tive harm.
Hot Exhaust Pipes
Warning!
Risk of burn injury when standing near or
coming into contact with the exhaust pipe.
The exhaust pipe is hot when the vehicle is running
and remains hot for some time after the vehicle is
turned off.
fTo prevent injury, make a point of noting where
your vehicle’s exhaust pipe is, avoid placing
your legs near the exhaust pipe, and closely
supervise children around the vehicle when the
exhaust pipe could be hot. A hot exhaust pipe can cause serious burns.
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230
Practical Tips, Emergency Service
Towing Certain state statutes and local ordinances
prohibit towing with a chain, rope or even a tow
bar.
In addition, damage to your vehicle may result
from improper procedures.
Consult your authorized Porsche dealer for
details. Vehicle towing Flat bed towing is the preferred type of towing to
be used on Porsche vehicles.
Under certain circumstances, wheel lifts may be
used when the vehicle will not roll.
The vehicle must be towed with all four
wheels off the ground, otherwise damage to
the vehicle may result.
Towing hook The towing hook A is contained in the tool box in
the luggage compartment.
Caution!
Risk of damage to the vehicle.
fUse the towing hook only for an emergency to
remove the vehicle off the road. The towing
hook is to be used only to pull the vehicle onto
the flat bed, tractor or towing aparatus if the
vehicle will roll freely. Under no circumstances
is the vehicle to be secured using the towing
hook.
fNever use the towing hook to tow this or any
other vehicle.
fBear in mind the limited ground clearance of your car on uneven surfaces.Fitting towing hook
When fitting on the rear of the vehicle, the license
plate must be removed.
1. Press the lower edge of the appropriate
plastic cover into the bumper until the cover
disengages.
2. Pull cover out of the bumper and let it hang by
its thread.
3. Completely screw in the towing hook A.
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Technical Data
241
Dimensions
Suspension setupThe stabilizers at the front and rear axles can be adjusted individually.
We also recommend using the standard adjustment when driving on the racing circuit.
On public highways, the running gear must be in the standard position. Length 176.3 in./4479 mm
Width without door mirrors 71.2 in./1808 mm
Width with door mirrors 76.9 in./1952 mm
Height 50.4 in./1280 mm
Wheelbase 92.7 in./2355 mm
Ground clearance
at maximum gross weight3.7 in./93 mm
Turning circle 35.8 ft./10.9 m
Driving on public highways and on
race circuits
Front axle toe +0’ ±2’
Rear axle toe +13’ ±2’
Front axle camber –1°30’ ±5’
Rear axle camber –1°30’ ±5’
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Index
245
Driving
Hints .................................................... 11
Driving performance ................................... 240
Drop-center rim .......................................... 194
Dynamic cornering light
Functional description............................ 74
Dynamic engine mounting.............................. 63EElectrical system ........................................ 207
Emergency flasher switch.............................. 72
Emergency operation
Central locking...................................... 23
Ignition key ........................................... 69
Lids ................................................... 210
Tank flap ............................................ 165
Emergency service ..................................... 183
Emergency starting with jumper cables 217, 218
Emission control system ............. 116, 168, 169
Engine
Checking the oil level........................... 143
Exhaust .................................................. 8
Number .............................................. 235
Oil consumption ............................ 13, 159
Oil level .............................................. 160
Oil level indicator................................ 143
Oil pressure ........................................ 115
Oil temperature................................... 108
Oils ............................................ 159, 239
Speeds ........................................ 13, 240
Starting ................................................ 70
Stopping .............................................. 71Engine compartment
Blower .........................................71, 112
Blower fan ..........................................112
Care...................................................177
Lid .................................................85, 86
Lid warning light ....................................85
Engine oil
Choosing the right oil ..........................160
Consumption ........................................13
Topping off .........................................160
Viscosity.............................................160
Exhaust
Pipes .....................................................8
Tailpipes, stainless steel ......................178
External antenna ...........................................91
External audio source, AUX ............................93
FFiller flap ....................................................165
Filling pressure, tire.....................................237
Fire extinguisher ...........................................94
Flat tire ......................................................203
Floor mats ..................................................180
Fluids and fuels ...........................................239
FM reception ................................................89
Fog light, rear ...............................................73
Footbrake.....................................................54
Fresh air intake ...........................................101
Front axle lift system
Functional description ............................64
Lowering front axle................................65
Raise front axle .....................................64
Front lid .................................................85, 86Fuel................................................... 113, 165
Containers ..................................... 7, 167
Economy ........................................... 164
Evaporation control ............................ 167
Fuels containing ethanol ...................... 167
Level gauge ....................................... 113
Level warning light.............................. 113
Recommendation ....................... 166, 167
Recommendations.............................. 166
Tank.................................................. 166
Fuses, replacing......................................... 209
GGarage
Door ................................................... 71
Door opener ........................................ 95
Lift .................................................... 206
Glove compartment ...................................... 84
Gong ....................................... 17, 68, 73, 120
Ground clearance ........................................... 8HHalogen headlights
Changing bulb for low beam ................ 222
Handbrake ................................................... 53
Head restraints ............................................ 33
Headlights ................................................. 220
Adjusting ................................... 228, 229
Beam adjustment ................................. 74
Cleaning system ................... 76, 170, 239
Flasher ................................................ 75
Heated rear window..................................... 32
Heated rear window/Door mirror heating ..... 102
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