Wärtsilä 46 Performance upgrade for marine

The Wärtsilä 46 Performance upgrade is a tailored performance upgrade package that boosts engine performance by optimising the combustion process and tuning the engine to the most frequently used operating range. This leads to lowered specific fuel oil consumption, lowered emissions, and increased operational flexibility.

    Technical info

    The scope of the upgrade depends on the customer requirements. Wärtsilä will study and propose a tailored performance package; these components and settings may be affected:

    • Turbocharger exchange or specification change
    • Inlet valve timing (Miller cycle)
    • Engine tuning

    Engine documentation update (i.e. EIAPP amendment), in case needed, is also part of Wärtsilä’s delivery scope.

    • Enable fuel savings of up to 3%
    • Reduce NOX emissions in order to comply with emission limits
    • Increased operational flexibility
    Wärtsilä 46 marine engines



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