BMW gasoline straight-6 3.0 L S50 B30 (306S1) 291 HP engine DIY maintenance and service manual

General Information

BMW gasoline straight-6 3.0 L S50 B30 (306S1) 291 HP is an 2990 cc (2.63 UK qt.) internal combustion reciprocating Inline 6 engine. It has bore/stroke ratio of 86 mm × 85.8 mm (3.39 in × 3.38 in). This engine was rated 217 kW (291 hp). It was used in BMW cars.

Engine Performance Rating

SAE J1349 (SAE Net)

BMW gasoline straight-6 3.0 L S50 B30 (306S1) 291 HP engine performance rating according to SAE J1349 (SAE Net) standard.
Parameter	Output
Power Rating	217 kW (291 hp)

Specifications

General

BMW gasoline straight-6 3.0 L S50 B30 (306S1) 291 HP engine general specifications.
Parameter	Value
Type	Internal Combustion Reciprocating
Fuel Type	Gasoline
Cylinder Configuration	Inline 6
Engine Displacement	182.46 in³182.46 in³2990 cc
Bore	3.39 in3.39 in86 mm
Stroke	3.38 in3.38 in85.8 mm

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Engine head and valvetrain

BMW gasoline straight-6 3.0 L S50 B30 (306S1) 291 HP engine head and valvetrain specifications.
Parameter	Value
Valvetrain Type	DOHC
Valves per Cylinder	4

Air Intake

BMW gasoline straight-6 3.0 L S50 B30 (306S1) 291 HP air intake specifications.
Parameter	Value
Air Intake Method	Naturally Aspirated

Fuel Injection

BMW gasoline straight-6 3.0 L S50 B30 (306S1) 291 HP fuel injection specifications.
Parameter	Value
Injection Type	Carburetor
Injection Info	Intake Manifold Injection/ Carburettor