compression ratio PORSCHE BOXSTER S 2011 2.G Information Manual

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Resonance intake manifold.
The resonance effect, where the air
mass inside the intake manifold is
caused to oscillate is used to optimise
the induction process at all engine
speeds. The engine in the Boxster S is
additionally equipped with a switchable
resonance valve.
The results are high torque, a flat ter
torque curve and high power output.
The sound produced is characteristically
resonant and deep, as you would expect
of a Boxster.

Direct fuel injection (DFI).
Direct fuel injection (DFI) is featured
as standard in both Boxster models.
Multi-hole injectors deliver fuel directly
into the combustion chamber with milli -
second precision. The injection pattern
has been optimised for torque, power
output, fuel consumption and emissions.
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 optimises the combustion process
and therefore fuel economy. Depending
on the engine operating conditions, multi -
ple fuel injections can take place on each operating cycle. This allows the cata
-
ly tic converter to reach normal operating
temperate sooner after a cold start and a
higher maximum torque to be achieved.
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 higher power output
at the same time as enhanced engine
efficiency. Injection is regulated by the
electronic engine management system
and emissions are monitored by the stereo
Lambda sensors.
For fuel consumption and CO
2 emissions please refer to page 127.

12 612 7
Boxster Boxster S
Engine
C y linders 6 6
Displacement 2.70 6 c m
33.436 cm3
Max. power (DIN)
at rpm195 kW (265 hp)
6.70 0 232 kW (315 hp)
6.70 0
Max. torque
at rpm 280 Nm
4.500 – 6.500 360 Nm
4.500–5.800
Compression ratio 12.5:1 12.5:1
Transmission
LayoutRear-wheel drive Rear-wheel drive
Manual gearbox 6-speed 6-speed
PDK (optional) 7-speed 7-speed
Chassis
Front axleLightweight spring-strut suspension Lightweight spring-strut suspension
Rear axle Lightweight spring-strut suspension Lightweight spring-strut suspension
Steering Variable steering ratio, power-assisted (electromechanical) Variable steering ratio, power-assisted (electromechanical)
Turning circle 10,9 8 m 10,9 8 m
Brakes Four-piston aluminium monobloc fixed calipers front and rear,
discs internally vented and cross-drilled Four-piston aluminium monobloc fixed calipers front and rear,

discs internally vented and cross-drilled
Vehicle stabilit y system Enhanced Porsche Stabilit y Management (PSM)
(with ABS 9.0) Enhanced Porsche Stabilit y Management (PSM)
(with ABS 9.0)
Anti - lock braking system A BS 9.0 A BS 9.0
Standard wheels Front: 8J x 18" ET 57, Rear: 9J x 18" ET 47 Front: 8J x 19" ET 57, Rear: 9,5J x 19" ET 45
Standard tyres Front: 235/45 ZR 18, Rear: 265/45 ZR 18 Front: 235/40 ZR 19, Rear: 265/40 ZR 19
Boxster Boxster S
Weights
Manual/PDK Manual/PDK
Unladen weight (DIN) 1.310 kg / 1.340 kg1.320 kg / 1.350 kg
Unladen weight (EC)
1)1.385 kg / 1.415 kg 1.395 k g / 1.425 k g
Pe r m issi b le gross we igh t 1.645 kg / 1.675 kg1.655 kg / 1.685 kg
PerformanceManual/PDKManual/PDK
Top speed 264 km/ h (164 mph) / 262 km/ h (162 mph)279 km/ h (173 mph) / 277 km/ h (172 mph)
0 –100 km/ h (0 – 62 mph) 5.8 secs / 5.7 secs5.1 secs / 5.0 secs
with Sport Chrono Package (in conjunction with PDK) – / 5.5 secs– / 4.8 secs
0 –160 km/ h (0 –99 mph) 13.1 secs / 13.0 secs 11.0 secs / 10.9 secs
with Sport Chrono Package (in conjunction with PDK) – / 12,7 secs– / 10,7 secs
Flexibilit y (80 –120 km/ h) (50 –75 mph) in 5th gear 8,2 secs / –6,7 secs / –
Overtaking acceleration (80 –120 km/ h) (50 –75 mph) – /3,7 secs– / 3,1 secs
Fuel consumption/emissions2)Manual/PDKManual/PDK
Urban in l/100 km (mpg) 11.4 (24.8) / 10.6 (26.6)12.2 (23.2) / 11.2 (25.2)
Extra urban in l/100 km (mpg) 6.3 (44.8) / 5.9 (47.9)6.9 (40.9) / 6.2 (45.6)
Combined in l/100 km (mpg) 8.2 (34.4) / 7.7 (3 6.7 ) 8.8 (32.1) / 8.0 (35.3)
CO
2 emissions g/km 192 / 18 0 20 6/ 18 8
Dimensions/aerodynamics
Length 4 . 374 m m4 . 374 m m
Width (including exterior mirrors) 1.801 mm (1.978 mm)1.801 mm (1.978 mm)
Height 1.282 m m1.281 m m
Wheelbase 2.475 mm2.475 mm
Luggage compartment volume (German Car Manufacturers’ Assoc.)
front / rear
150 litres / 130 litres150 litres / 130 litres
Tank capacity (refill volume) approx. 64 litresapprox. 64 litres
Drag coef ficient c
w = 0.30cw = 0.31
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/ EG, 692/2008/ EG, 566/2011/ EG und 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. You can obtain further information about individual vehicles from your Porsche Centre. Fuel consumption calculated for vehicles with standard specification only.
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. Actual consumption and per formance may var y with items of optional equipment.
Technical data.
Technical data