BMW HP4 - Engine

Engine
Engine design Transversely mounted, four-cylinder four-stroke
in-line engine tilted 32° forward, with four valves
per cylinder, two overhead camshafts with cam
followers; liquid cooled, with electronic fuel injec-
tion, integrated six-speed gearbox, wet-sump lub-
rication.
Displacement 999 cm
3
Cylinder bore 80 mm
Piston stroke 49.7 mm
Compression ratio 13:1
Nominal output 142 kW, at engine speed: 13000 min
-1
with reduced power output, 79 kW
OE
79 kW, at engine speed: 8750 min
-1
Torque 112 Nm, at engine speed: 9750 min
-1
with reduced power output
OE
89 Nm, at engine speed: 8500 min
-1
Maximum engine speed max 14200 min
-1
Idle speed 1250 min
-1
, Engine at regular operating tempera-
ture
11
171
z Technical data