compression ratio PORSCHE BOXSTER 2005 2.G Owners Manual

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Vehicle Identification, Technical Data
Technical DataEngine data
Boxster Boxster S
Ty p e M 9 6 / 2 5 M 9 6 / 2 6
Horizontally opposed engine, liquid cooledHorizontally opposed engine, liquid cooled
Number of cylinders 6 6
Bore 3.37 in./85.5 mm 3.66 in./93 mm
Stroke 3.07 in./78 mm 3.07 in./78 mm
Cubic capacity 163.96 cu. in./2687 cm
3 193.98 cu. in./3179 cm
3
Compression ratio 11.0 : 1 11.0 : 1
Net-horsepower, SAE J 1349 240 hp/176 kW 280 hp/206 kW
at crankshaft speed 6400 rpm 6200 rpm
Net torque, SAE J 1349 199 ft. lb./270 Nm 236 ft. lb./320 Nm
at crankshaft speed 4700 - 6000 rpm 4700 - 6000rpm
Alternator 2100 W 2100 W
Firing order 1 - 6 - 2 - 4 - 3 - 5 1 - 6 - 2 - 4 - 3 - 5
Engine control Stationary high-voltage distribution, sequential injection,
cylinder-selective knock-control, stereo oxygen sensor closed-loop control, diagnostic system,
4 overhead camshafts, Porsche VarioCam, hydraulic valve clearance compensation