Operation CHARM: Car repair manuals for everyone.

Engine of the Boxster M96.25



Engine of the Boxster M96.25

General

The engines have been revised in the course of developing the new Boxster generation. The Boxster now has a 2.7 liter engine with a power output of 240 hp (176 kw). Even more impressive than the actual power ratings is the extra acceleration which the new engines offer in the low and middle rev range.







The most important changes:
- All-aluminium bearing cradle
- Reinforced bearing shells
- Crankshaft with deeper center bore at flywheel end
- Mechanical vacuum pump
- Tension and idler pulley in plastic on vehicles with manual transmission
- New oil level measuring system
- Optimized cooling system
- Extended maintenance intervals

Full-power Curve (Boxster 2.7)







A - Power rating in hp
B - Power rating in kW
C - Torque in Nm
nM - Engine speed in rpm

Important engine data:
Displacement 2.7 Liter
Bore 85.5 mm
Stroke 78 mm
Power output 240 hp (176 kW)
at rpm 6400 rpm
Max. torque 199 ft lbs (270 Nm)
at rpm 4700 - 6000 rpm
Compression ratio 11,0
Cut-off speed 7200 rpm
Idle speed 680 ± 40 rpm