Volvo diesel engines

I wanted to highlight the difference between the 2.4 L D5 diesel engine and the other 1.6 and 2.0 L diesels because there is a huge gap between them! The 1.6 and 2.0 L versions are developed by PSA (Peugeot & Citroen's commonly developed engines) compared to the 2.4 L which is a Volvo Car Corporation product.

Description:
The Volvo D5 is a type of turbocharged diesel engine developed by Volvo Car Corporation for use in its passenger cars.

It is an all aluminium 5 cylinder engine with 20 valves and double overhead camshafts. In all but one late version it has a VGT turbocharger of the type VNT (Variable Nozzle Turbine), common rail direct injection and cooled exhaust gas recirculation.

There are three generations of D5 engines. The first generation was introduced in 2001; the second generation was introduced in 2005 and the third was introduced in 2009. The second generation got a slight reduction in stroke and has a reduced compression ratio, a water cooled VNT turbocharger with a bigger compressor and an electric servo motor to adjust the vanes, an improved EGR system, a throttle valve, revised intake and exhaust ports and a newer generation of common-rail direct injection with improved injectors. The third generation got a further reduction in compression ratio, a two-stage turbo system (D5244T10), an improved EGR system, revised intake and exhaust ports and a newer generation of common rail direct injection with higher pressure and piezoelectric injectors.
Volvo has a special version of the D5 for use in the C30, S40, V50 and C70 models that produces 180 HP and 400 NM of torque (reduced to 350 NM with automatic transmission). The engine compartments of these cars are smaller so among other things the engine has a different air intake system, different exhaust system, smaller charge air cooler and a smaller radiator.

The D5244T is also offered as a marine engine by Volvo Penta under the name D3. The marinised engine is in large parts identical to D5244T. This includes crankshaft, pistons, camshafts, valves, cylinder block, cylinder head, turbo, injectors and the high pressure pump. The D3 ECU has a modified software, which e.g. gives a modified torque suited for marine applications and has a simplified starting sequence. The hardware differences between D5244T and D3 are: a water cooled inter-cooler, a water cooled exhaust manifold, a heavier monolithic crankwheel, a seawater pump and a heat exchanger. The output is 110 HP at 3000 rpm, 130 HP, 160 HP, 190 HP, 220 HP at 4000 rpm and it is coupled to a duoprop I/O system.

	D5244T	D5244T2	D5244T4	D5244T5	D5244T7	D5244T8	D5244T13	D5244T18	D5244T10	D5244T11	D5244T14	D5244T15	D5244T16/T17
Max power	163 HP @ 4000 rpm	130 HP @ 4000 rpm	185 HP @ 4000 rpm	163 HP @ 4000 rpm	126 HP @ 4000 rpm	180 HP @ 4000 rpm	180 HP @ 4000 rpm	200 HP @ 3900 rpm	205 HP @ 4000 rpm	215 HP @ 4000 rpm	175 HP @ 3,000-4000 rpm	215 HP @ 4000 rpm	163 HP @ 4000 rpm
Max torque	340 NM (251 lb·ft) @ 1750-2750 rpm	280 NM (207 lb·ft) @ 1750-3000 rpm	400 NM (295 lb·ft) @ 2000-2750 rpm	340 NM (251 lb·ft) @ 1750-2250 rpm	300 NM (221 lb·ft) @ 1750- 2750 rpm	350 NM (258 lb·ft) @ 1750-3250 rpm	400 NM (295 lb·ft) @ 2000-2750 rpm	420 NM (310 lb·ft) @ 1900-2800 rpm	420 NM (310 lb·ft) @ 1500-3250 rpm	420 NM (310 lb·ft) @1500-3250 rpm	420 NM (310 lb·ft) @ 1500-2750 rpm	440 NM (325 lb·ft) @ 1500-3000 rpm	420 NM (310 lb·ft) @ 1500-2500 rpm
Redline	4600 rpm	4600 rpm	5000 rpm	5000 rpm	5000 rpm	5000 rpm	5000 rpm	5000 rpm	5200 rpm	5200 rpm	5000 rpm	5200 rpm	5000 rpm
Bore	81 mm (3.19 inches)
Stroke	93.2 mm (3.67 inches)		93.15 mm (3.667 inches)
Cylinder capacity	2401 cm3		2400 cm3
Compression ratio	18:1		17.3:1						16.5:1
Charging system	VNT								Two-stage turbo		VNT	Two-stage turbo
Common rail	Second generation (1600 bar)								Third generation (1800 bar)