compression ratio VOLVO S60 2009 Owner´s Manual

11 SpecificationsEngine specifications
11242
Engine designation
B5244T5
B5254T2
Output
kW/rps
hp/rpm
191/92
257/5500
154/83
208/5000
Torque
Nm/rps
ft. lbs./rpm
330/42 – 87
258/2100 – 5000
320/25 – 75
236/1500 – 4500
No. of cylinders
5
5
Displacement (liter/cu.in.)
2.4/146.5
2.52/153.8
Bore (in./mm)
3.19/81
3.19/81
Stroke (in./mm)
3.67/93.2
3.67/93.2
Compression ratio
8.5:1
9.0:1
Charge air cooler (Intercooler)Turbocharged engines employ a turbo-com-
pressor to force air into the engine inlet mani-
fold and a charge air cooler to cool the
compressed inlet air. The resulting increase in
air flow raises pressure in the intake manifold
and increases engine power over that devel-
oped by the normally-aspirated engine. The
charge air cooler (which resembles a radiator)
is located between the turbo-compressor and
inlet manifold.
Fuel systemThe engine is equipped with a multiport fuel
injection system.