Turbocharged engine employing cylinder deactivation

A method of operating a turbocharged gasoline engine including:

• a turbocharger having a single-sequential compressor being mechanically coupled to a twin scroll turbine,
• wherein the single-sequential compressor includes a single housing, a dual sided impeller having a first blade arrangement in fluid communication with a first air inlet, and an opposing second blade arrangement in fluid communication with a second air inlet, and an outlet in fluid communication with the first air inlet and the second air inlet;
• wherein the twin scroll turbine includes a first scroll and a second scroll;
• a first subset of cylinders in fluid communication with a second scroll of the twin scroll turbine via a second exhaust manifold,
• a second subset of cylinders in fluid communication with a first scroll of the twin scroll turbine via a first exhaust manifold,
• a controller in communication with the turbocharger,
• the method comprising:
• determining a load request during an engine operation via the controller, wherein the load request includes a first load request and a second load request;
• providing a flow of compressed air from a single-sequential compressor via the first air inlet and the second air inlet to the second subset of cylinders of the engine;
• selectively deactivating the first subset of cylinders, by restricting a fuel from entering, through fuel injectors, the first subset of cylinders upon receipt of a command from the controller, wherein deactivating includes sealing the first subset of cylinders such that the fuel is restricted from entering the first subset of cylinders while the flow of compressed air is provided only to the second subset of cylinders.