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BMW N55B30 Engine
BMW N55B30 Engine
BMW N55B30 Engine
BMW N55B30 Engine
BMW N55B30 Engine
BMW N54B30 Engine
  1. BMW N55B30 Engine
  2. BMW N55B30 Engine
  3. BMW N55B30 Engine
  4. BMW N55B30 Engine
  5. BMW N55B30 Engine
  6. BMW N54B30 Engine

N55B30 Engine Assembly — BMW (BMW) | Compatible with N55 Series F10 / F12 / F13 Models (535i / 640i)

The BMW N55B30 is a 3.0-liter (2,979 cc) turbocharged inline-six engine produced from 2009 to 2017. Notable for succeeding the N54 series, this engine is distinguished by its use of a single twin-scroll turbocharger, in contrast to the previous twin-turbo layout. The N55B30 features an aluminum engine block, Valvetronic variable valve lift technology, the VANOS variable valve timing system, and direct fuel injection; depending on the specific model variant, its power output ranges from 300 to 365 horsepower, with peak torque ranging from 300 to 369 pound-feet.

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Description

Key Technical Specifications (Standard Version N55):
Engine Type: Inline-6, Turbocharged (Single-scroll, Twin-pipe).
Displacement: 2,979 cc (3.0 liters).
Bore x Stroke: 84.0 mm x 89.6 mm (3.31 in x 3.53 in).
Compression Ratio: 10.2:1.
Horsepower: 300–322 hp (Base Version); up to 365 hp (M2/X4 M40i).
Torque: 300–332 lb-ft (Base Version); up to 369 lb-ft (M2).
Valvetrain: DOHC (Dual Overhead Camshafts), 4 valves per cylinder, featuring Valvetronic.
Engine Management System: Bosch MEVD 17.2.

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