Volvo SI6 engine

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Volvo designed the SI6 ("short inline 6") straight-6 automobile engine for use in 2007 models. An evolution of the company's long-used straight-5, which itself is an evolution of the Volvo B6304 straight six engine, the SI6 can be mounted transversely for front wheel drive applications or longitudinally for rear wheel drive. Despite the added cylinder and displacement, the engine remains compact, and is in fact 1 mm (0.0 in) shorter than the previous straight-5. The engine will be offered in two displacements initially — a 3.0 L turbocharged version and a 3.2 L naturally aspirated version. Both offer variable cam timing, though only the turbo version varies both the intake and exhaust valves. On top of the variable cam timing used on the intake cam of the naturally aspirated it also has variable valve lift by using Cam Profile Switching (CPS).

Production of the Volvo SI6 began at the Ford Bridgend Engine Plant in Wales in May 2006. It was assumed that the engines would be used in European Ford and Jaguar products as well as Volvos.[1][2]

3.0 T6[edit]

The 3.0 L turbocharged engine is available in a light-pressure turbo (LPT) version. Cylinder bore is 82.0 mm (3.23 in) and stroke is 93.2 mm (3.67 in) with a compression ratio of 9.3:1.
In 2010 for MY2011 a new upgraded version was unveiled with the new Volvo S60 giving higher output and lower fuel consumption to replace the old T6 in all cars.

Model Power Torque
T6 304 PS (224 kW; 300 hp) 325 lb·ft (441 N·m)


Model Power Torque
T6 285 PS (210 kW; 281 hp) 295 lb·ft (400 N·m)



The naturally aspirated 3.2 L engine has a bore of 84.0 mm (3.31 in) and stroke is 96.0 mm (3.78 in) with a compression ratio of 10.8:1.
In 2010 for MY2011 a new upgraded version was unveiled with higher output and lower fuel consumption.

Model Power Torque
3.2 245 PS (180 kW; 242 hp) 236 lb·ft (320 N·m)
3.2 PZEV 231 hp (172 kW) 221 lb·ft (300 N·m)


Model Power Torque
3.2 238 PS (175 kW; 235 hp) 236 lb·ft (320 N·m)
3.2 PZEV 221 hp (165 kW) 221 lb·ft (300 N·m)


Model Power Torque
3.2 233 PS (171 kW; 230 hp) 234 lb·ft (317 N·m)


See also[edit]



  1. ^ Wim Oude Weernink and Bradford Wernle. "Building Blocks: Ford learns a lesson from Lego". AutoWeek. Retrieved March 30, 2006. 
  2. ^ Staff Report. "Ford To Produce New PAG 6-Cylinder Engine". Retrieved May 26, 2006.