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Volvo SI6 engine

From Wikipedia, the free encyclopedia

Volvo SI6 engine
Volvo S60 Polestar - T6 3.0l V6 turbo (MSP16).jpg
ManufacturerVolvo Cars/Ford Motor Company
Displacement3.0–3.2 L (2,953–3,192 cc)
Cylinder bore82 mm (3.23 in)
84 mm (3.31 in)
Piston stroke93.2 mm (3.67 in)
96 mm (3.78 in)
Block materialAluminum
Head materialAluminum
ValvetrainDOHC 4 valves x cyl. with VVT and VVL
Compression ratio9.3:1, 10.8:1
TurbochargerLow pressure with intercooler (on 3.0 L versions)
Fuel systemFuel injection
ManagementBosch ME
Fuel typePetrol
Oil systemWet sump
Cooling systemWater-cooled
Power output233–350 PS (171–257 kW; 230–345 hp)
Torque output300–500 N⋅m (221–369 lb⋅ft)
Dry weight190 kg (420 lb)[2]
Emissions target standard
Emissions control technologyCatalytic converter
PredecessorVolvo Modular Engine

The SI6 (Short Inline 6) is a family of straight-six engines developed by Volvo and used by Land Rover and Volvo.


Volvo designed the SI6[3] ("short inline 6") straight-6 automobile engine for use in 2007 models. An evolution of the company's long-used straight-5 Volvo Modular engine, which itself is an evolution of the Volvo B6304 straight six engine, the SI6 can be mounted transversely for front wheel drive or all wheel drive applications. Despite the added cylinder and displacement, the engine remains compact, and is in fact 1 mm (0.039 in) shorter than the previous straight-5. The engine was initially offered in two displacements — a 3.0 L turbocharged version and a 3.2 L naturally aspirated version. Both offered 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 engine it also had 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.[4][5]


The engine codes consist of a series of letters and digits:

  • 1st: Fuel type (B) B = Bensin (Petrol)
  • 2nd: Number of cylinders (6)
  • 3rd & 4th: Approximate displacement in deciliters, may be rounded up or down. (29 ~= 3.0 L)
  • 5th: Valves per cylinder (4)
  • 6th: Induction method (S/T) S = standard (naturally aspirated), T = turbocharged
  • 7th: Engine variant (2/4/5)

Engine codes are not necessarily unique to a specific engine as power levels can vary depending on market, manufacturer and model.


The 3.0 L (2,953 cc) straight-six engine is intercooled and turbocharged. Cylinder bore and stroke are 82 mm × 93.2 mm (3.23 in × 3.67 in) with a compression ratio of 9.3:1.


The B6304T2 has a power output of 285 PS (210 kW; 281 hp) at 5600 rpm, and produces 400 N⋅m (295 lb⋅ft) of torque at 1500–4800 rpm.



The B6304T4[8] has a power output of 304 PS (224 kW; 300 hp) at 5600 rpm, and produces 440 N⋅m (325 lb⋅ft) of torque at 2100–4200 rpm.[9]



The B6304T5 has a power output of 350 PS (257 kW; 345 hp) at 5250 rpm, and produces 500 N⋅m (369 lb⋅ft) of torque at 3000–4750 rpm.[10]



The 3.2 L (3,192 cc) straight-six engine is naturally aspirated. Cylinder bore and stroke are 84 mm × 96 mm (3.31 in × 3.78 in) with a compression ratio of 10.8:1.


The B6324S has a power output of 238 PS (175 kW; 235 hp) at 6200 rpm, and produces 320 N⋅m (236 lb⋅ft) of torque at 3200 rpm.[12]








The B6324S5 has a power output of 243 PS (179 kW; 240 hp) at 5600 rpm, and produces 320 N⋅m (236 lb⋅ft) of torque at 3200 rpm.[9]
In its PZEV version power output is reduced to 234 PS (172 kW; 231 hp) at ????rpm and produces 300 N⋅m (220 lb⋅ft) of torque at ???? rpm.

Model Power Torque
3.2 245 PS (180 kW; 242 hp) 320 N⋅m (236 lb⋅ft)
3.2 PZEV 234 PS (172 kW; 231 hp) 300 N⋅m (221 lb⋅ft)



See also


  1. ^ Chris Davies (30 May 2016). "2016 Volvo V60 Polestar T6 Review – Swedish mettle". Archived from the original on 2018-01-05. Retrieved 2017-10-20.
  2. ^ Darlene Fritz (2 August 2012). "Gasoline turbo I6 boosts Volvo S80 performance". SAE International. Archived from the original on 2018-01-05. Retrieved 2018-01-05.
  3. ^ Greg Kable (14 June 2005). "Volvo's Super 6". Archived from the original on 2011-05-22. Retrieved 2017-10-20.
  4. ^ Wim Oude Weernink; Bradford Wernle (30 March 2006). "Building Blocks: Ford learns a lesson from Lego". AutoWeek. Archived from the original on 2006-05-28. Retrieved 2006-03-30.
  5. ^ "Ford To Produce New PAG 6-Cylinder Engine". BlueOvalNews. 26 May 2006. Archived from the original on 2006-10-23.
  6. ^ a b "2010 Volvo S80 Betriebsanleitung" [2010 Volvo S80 owner's manual] (PDF). (in German). Volvo Car Corporation. 2009. pp. 294, 301. Archived (PDF) from the original on 2017-01-31.
  7. ^ "2008 Volvo S80 Betriebsanleitung" [2008 Volvo S80 owner's manual] (PDF). (in German). Volvo Car Corporation. 2007. p. 227. Archived (PDF) from the original on 2017-09-27.
  8. ^ a b "Volvo S60 owner's manual MY12" (PDF). Volvo Car Corporation. 2011. pp. 238–239. Archived (PDF) from the original on 2018-01-31.
  9. ^ a b "Volvo V70 & XC70 Betriebsanleitung MY13" [Volvo V70 & XC70 owner's manual MY13] (PDF). (in German). Volvo Car Corporation. 2012. pp. 413–420. Archived (PDF) from the original on 2017-10-20.
  10. ^ "Volvo S60 & V60 Polestar" (PDF). (Brochure). Volvo Cars of North America. pp. 26–27. Retrieved 2018-02-02.
  11. ^ "S60 Polestar" (PDF). (Brochure). April 2014. Retrieved 2018-02-02.
  12. ^ "Volvo V70 / XC70 Betriebsanleitung MY08" [Volvo V70 / XC70 owner's manual MY08] (PDF). (in German). Volvo Car Corporation. 2007. p. 291. Archived (PDF) from the original on 2016-10-02.
  13. ^ a b "Volvo S80 Betriebsanleitung" [Volvo S80 owner's manual] (PDF). (in German). Volvo Car Corporation. 2006. pp. 217, 221. Archived (PDF) from the original on 2017-08-27.
  14. ^ "2010 Volvo XC60 brochure (US)" (PDF). Volvo Cars of North America. 2009. p. 47. Archived (PDF) from the original on 2017-07-05.
This page was last edited on 3 January 2020, at 19:03
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