compression ratio VOLVO S40 2011 Owner´s Manual

11 Specifications
Engine specifications
11

275
Engine designationB5254T7
OutputA
kW/rps
hp/rpm169/83
227/5000
TorqueA
Nm/rps
ft. lbs./rpm320/25-80
236/1500-4800
No. of cylinders5
Displacement (liters/cubic inches)2.52/153.8
Bore (mm/in.)83/3.27
Stroke (mm/in.)93.2/3.67
Compression ratio9.0:1
Spark plugs
type
gap inches/mm
tightening torque ft. lbs./Nm
Volvo kit no. 30650379
0.027 in./0.7mm
22.5 ft. lbs./30 Nm
AThe engine specifications for output and torque listed in this table are based on the use of premium fuel.
Charge air cooler (Intercooler)
The engine employs a turbo-compressor to
force air into the engine intake manifold and a
charge air cooler to cool the compressed inletair. The resulting increase in air flow raises
pressure in the intake manifold and increases
engine power over that developed by the nor-
mally-aspirated engine. The charge air cooler(which resembles a radiator) is located
between the turbo-compressor and intake
manifold.