Volvo SI6 engine


The SI6 is a family of straight-six engines developed by Volvo and used by Land Rover and Volvo.

History

Volvo designed the SI6 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 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.
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.

Nomenclature

The engine codes consist of a series of letters and digits:
Engine codes are not necessarily unique to a specific engine as power levels can vary depending on market, manufacturer and model.

3.0

The straight-six engine is intercooled and turbocharged. Cylinder bore and stroke are with a compression ratio of 9.3:1.

B6304T2

The B6304T2 has a power output of at 5600 rpm, and produces of torque at 1500–4800 rpm.
Applications:
The B6304T4 has a power output of at 5600 rpm, and produces of torque at 2100–4200 rpm.
Applications:
The B6304T5 has a power output of at 5250 rpm, and produces of torque at 3000–4750 rpm.
Applications:
The straight-six engine is naturally aspirated. Cylinder bore and stroke are with a compression ratio of 10.8:1.

B6324S

The B6324S has a power output of at 6200 rpm, and produces of torque at 3200 rpm.
Applications:
Applications:
TBD
Applications:
The B6324S5 has a power output of at 5600 rpm, and produces of torque at 3200 rpm.
In its PZEV version power output is reduced to at ????rpm and produces of torque at ???? rpm.
ModelPowerTorque
3.2
3.2 PZEV

Applications:
Applications: