Supercharged usually refers to an engine with a supercharger, which is a crankshaft driven pump used to force more air into the engine. It is similar to a turbo

Supercharged usually refers to an engine with a supercharger, which is a crankshaft driven pump used to force more air into the engine. It is similar to a turbocharger, except a turbo is driven by exhaust gas. N2O is typically used with a normally aspirated gasoline engine. It's just another way to get more oxygen into the combustion chamber. https://www.racingjunk.com/news/drag-race-101-its-a-gas/ https://www.racingjunk.com/news/drag-race-101-its-a-gas/