2014 PORSCHE 911 compression ratio

4243
DFI delivers fuel directly into the combustion
chamber with millisecond precision. The
spray and cone angles of the multi -hole
injectors have been optimised for torque,
power output, fuel consumption, emissions
and efficient combustion.
With direct injection, the engine manage -
ment system regulates injection timing
individually for each cylinder as well as
the injection rate for each cylinder bank.
This improves the combustion process
and fuel economy.
This results in instant acceleration,
extremely smooth running and an
extraordinary level of tractive power,
but with a comparatively low level of
fuel consumption.

For faster heating of the cataly tic converters
after a cold start and optimum torque in
the upper load range, up to three injection
pulses take place per combustion cycle.
DFI improves the internal cooling of
the combustion chamber by having the
mixture prepared directly in the cylinder.
This allows for a higher compression
ratio, which helps to deliver more output
at the same time as enhanced engine
efficiency. Injection is regulated by the
electronic engine management system
and emissions are monitored by the
Lambda sensors.
T emperament | Engine
VarioCam Plus.
VarioCam Plus is a two- in
-one engine
concept for adjusting the intake
camshafts and switching the lift of the
intake valves.
The system first differentiates bet ween
driver inputs that typify normal,
everyday driving and those inputs
that demand maximum performance.
The electronic engine management
system then seamlessly adapts valve
operation to the prevailing conditions.
What lies between your home and Le Mans?
Advanced engineering as standard.
Direct fuel injection (DFI).
For fuel consumption, CO2 emissions and efficiency class, please refer to pages 141/143.

140141
911 C a r r e r a911 Carrera Cabriolet911 Carrera S911 Carrera S Cabriolet
Weights
Manual / PDK Manual / PDK Manual / PDK Manual / PDK
Unladen (DIN) 1,400 kg / 1,420 kg1,470 kg / 1,490 kg1,415 kg / 1,435 kg1,485 kg / 1,505 kg
Unladen (EC)
1)1,475 kg / 1,495 kg 1,545 kg / 1,565 kg1,490 kg / 1,510 kg1,560 kg / 1,580 kg
Permissible gross weight 1,795 kg / 1,815 kg1,850 kg / 1,870 kg1,830 kg / 1,850 kg1,885 kg / 1,905 kg
PerformanceManual / PDK Manual / PDK Manual / PDK Manual / PDK
Top speed 289 km/ h / 287 km/ h286 km/ h / 284 km/ h304 km/ h / 302 km/ h301 km/ h / 299 km/ h
0–100 km/h 4.8 secs / 4.6 secs5.0 secs / 4.8 secs4.5 secs / 4.3 secs4.7 secs / 4.5 secs
Sport Chrono Package (with PDK) 0 –100 km/ h – / 4.4 secs – / 4.6 secs– / 4.1 secs – / 4.3 secs
0 –16 0 k m / h 10.4 secs / 10.0 secs 10.8 secs / 10.4 secs9.4 secs / 9.0 secs 9.8 secs / 9.4 secs
Sport Chrono Package (with PDK) 0 –160 km/ h – / 9.7 secs – / 10.1 secs– / 8.7 secs – / 9.1 secs
Flexibilit y (80 –120 km/ h) in 5th gear 6.4 secs / –6.7 secs / –5.9 secs / –6.2 secs / –
Overtaking acceleration (80 –120 km) – / 2.8 secs – / 2.9 secs– / 2.4 secs – / 2.5 secs
Fuel consumption/emissions 2)Manual / PDK Manual / PDK Manual / PDK Manual / PDK
Urban in l/100 km 12.4 / 11.312.7 / 11.513.3/ 12.1 13.6/ 12.2
Extra urban in l/100 km 7.0 / 6.67.2 / 6.77.3/ 6.77.5/ 6.9
Combined in l/100 km 9.0 / 8.29.2 / 8.49.5 / 8.79.7 / 8.9
CO
2 emissions g/km 211 / 191216 / 195223 / 202228 / 207
Efficiency class3)Manual / PDK Manual / PDK Manual / PDK Manual / PDK
Efficiency class (Germany) G /
FG / F G / GG / F
Efficiency class (Switzerland) G / GG/ GG / GG / G
Dimensions/aerodynamics
Length 4,491 m m4,491 m m4,491 m m4,491 m m
Width 1,808 mm1,808 mm1,808 mm1,808 mm
Height 1,303 mm1, 2 9 9 m m1, 2 95 m m1, 2 92 m m
Wheelbase 2,450 mm2,450 mm2,450 mm2,450 mm
Luggage compartment volume
(German Car Manufacturers’ Assoc.) 14 5 l i t r e s
14 5 l i t r e s14 5 l i t r e s14 5 l i t r e s
Tank capacity (refill volume) 64 litres64 litres64 litres64 litres
Drag coefficient 0.290.300.290.30
911 Carrera / 911 Carrera Cabriolet 911 Carrera S / 911 Carrera S Cabriolet
Engine
Cylinders 6 6
Displacement 3,436 cm
33,800 cm3
Max. power (DIN)
at rpm257 kW (350 hp)
7, 4 0 0 294 kW (400 hp)
7, 4 0 0
Max. torque
at rpm 390 Nm
5,600 440 Nm
5,600
Compression ratio 12.5 : 1 12.5 : 1
Transmission
LayoutRear- wheel drive Rear- wheel drive
Manual gearbox 7 -speed 7 -speed
PDK (optional) 7 -speed 7 -speed
Chassis
Front a xle McPherson strut suspension McPherson strut suspension
Rear axle Multi -link suspension Multi -link suspension
Steering Variable steering ratio, power- assisted (electromechanical) Variable steering ratio, power-
assisted (electromechanical)
Turning circle 11.1 m 11.1 m
Brakes Four-piston aluminium monobloc fixed calipers front and rear,
discs internally vented and cross-drilled Six-

piston aluminium monobloc fixed calipers at front, four
-piston
aluminium monobloc fixed calipers at rear, discs internally vented
and cross- drilled
Vehicle stability system Porsche Stability Management (PSM) including ABS
with additional brake functions Porsche Stability Management (PSM) including ABS
with additional brake functions
Standard wheels Front: 8.5 J x 19 ET 54, Rear: 11 J x 19 ET 69 Front: 8.5 J x 20 ET 51, Rear: 11 J x 20 ET 70
Standard tyres Front: 235/40 ZR 19, Rear: 285/35 ZR 19 Front: 245/35 ZR 20, Rear: 295/30 ZR 20
Technical data.
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 6 (715/2007/ EC, 195/2013/ EC and ECE- R 101.01) measurement method. The figures do not refer to an individual vehicle nor do they constitute
par t 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 fur ther information about individual vehicles from your Porsche Centre.
3) Valid in countries listed only.

142143
911 Carrera 4911 Carrera 4 Cabriolet911 Carrera 4S911 Carrera 4S Cabriolet
Weights
Manual / PDK Manual / PDK Manual / PDK Manual/PDK
Unladen (DIN) 1,450 kg / 1,470 kg1,520 kg / 1,540 kg1,465 kg / 1,485 kg1,535 kg / 1,555 kg
Unladen (EC)
1)1,525 kg / 1,545 kg 1,595 kg / 1,615 kg1,540 kg / 1,560 kg1,610 kg / 1,630 kg
Permissible gross weight 1,845 kg / 1,865 kg1,900 kg / 1,920 kg1,875 kg / 1,895 kg1,935 kg / 1,955 kg
PerformanceManual / PDK Manual / PDK Manual / PDK Manual / PDK
Top speed 285 km/ h / 283 km/ h282 km/ h / 280 km/ h299 km/ h / 297 km/ h296 km/ h / 294 km/ h
0–100 km/h 4.9 secs / 4.7 secs5.1 secs / 4.9 secs4.5 secs / 4.3 secs4.7 secs / 4.5 secs
Sport Chrono Package (with PDK) 0 –100 km/ h – / 4.5 secs– / 4.7 secs– / 4.1 secs– / 4.3 secs
0 –16 0 k m / h 10.6 secs / 10.2 secs11.0 secs / 10.6 secs9.6 secs / 9.2 secs10.0 secs / 9.6 secs
Sport Chrono Package (with PDK) 0 –160 km/ h – / 9.9 secs– / 10.3 secs– / 8.9 secs– / 9.3 secs
Flexibilit y (80 –120 km/ h) in 5th gear 6.5 secs / –6.8 secs / –6.0 secs/ –6.3 secs/ –
Overtaking acceleration (80 –120 km/ h) – / 2.9 secs– / 3.1 secs– / 2.5 secs– / 2.7 secs
Fuel consumption/emissions 2)Manual / PDK Manual / PDK Manual / PDK Manual / PDK
Urban in l/100 km 12.9 / 11.713.1 / 11.8 13.8 / 12.4 13.9 / 12.5
Extra urban in l/100 km 7.4/ 6.87.5 / 6.97. 6 / 7. 0 7. 7 / 7. 1
Extra urban in l/100 km 9.3 / 8.69.5 / 8.79.9 / 9.1 10.0 / 9.2
CO
2 emissions g/km 218 / 200223 / 202233 / 212235 / 214
Efficiency class 3)Manual / PDK Manual / PDK Manual / PDK Manual / PDK
Efficiency class (Germany) G /
FG / F G / GG / F
Efficiency class (Switzerland) G / GG/ GG / GG / G
Dimensions/aerodynamics
Length 4,491 m m4,491 m m4,491 m m4,491 m m
Width 1,8 52 m m1,8 52 m m1,8 52 m m1,8 52 m m
Height 1,3 0 4 m m1,3 0 0 m m1, 2 9 6 m m1, 2 9 4 m m
Wheelbase 2,450 mm2,450 mm2,450 mm2,450 mm
Luggage compartment volume
(German Car Manufacturers’ Assoc.) 125 l i t re s
125 l i t re s125 l i t re s125 l i t re s
Tank capacity (refill volume) 68 litres68 litres68 litres68 litres
Drag coefficient 0.300.310.300.31
911 Carrera 4 / 911 Carrera 4 Cabriolet 911 Carrera 4S / 911 Carrera 4S Cabriolet
Engine
Cylinders 6 6
Displacement 3,436 cm
33,800 cm3
Max. power (DIN)
at rpm257 kW (350 hp)
7, 4 0 0 294 kW (400 hp)
7, 4 0 0
Max. torque
at rpm 390 Nm
5,600 440 Nm
5,600
Compression ratio 12.5 : 1 12.5 : 1
Transmission
LayoutAll-wheel drive All-wheel drive
Manual gearbox 7-speed 7-speed
PDK (optional) 7-speed 7-speed
Chassis
Front a xleMcPherson strut suspension McPherson strut suspension
Rear axle Multi-link suspension Multi-link suspension
Steering Variable steering ratio, power-assisted (electromechanical) Variable steering ratio, power-assisted (electromechanical)
Turning circle 11.1 m 11.1 m
Brakes Four-piston aluminium monobloc fixed calipers front and rear,
discs internally vented and and cross-drilled Six-piston aluminium monobloc fixed calipers at front, four-piston
aluminium monobloc fixed calipers at rear, discs internally vented
and cross-drilled
Vehicle stability system Porsche Stability Management (PSM) including ABS
with additional brake functions Porsche Stability Management (PSM) including ABS
with additional brake functions
Standard wheels Front: 8.5 J X 19 ET 54, Rear: 11 J X 19 ET 48 Front: 8.5 J X 20 ET 51, Rear: 11 J X 20 ET 52
Standard tyres Front: 235/40 ZR 19, Rear: 295/35 ZR 19 Front: 245/35 ZR 20, Rear: 305/30 ZR 20
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 6 (715/2007/ EC, 195/2013/ EC and ECE- R 101.01) measurement method. The figures do not refer to an individual vehicle nor do they constitute
par t 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 fur ther information about individual vehicles from your Porsche Centre.
3) Valid in countries listed only.