The term describes the state of an engine when its throttle valve is fully opened, allowing the maximum amount of air and fuel mixture to enter the combustion chamber. This action results in the engine producing its maximum power output. For example, a driver might engage this state when needing to accelerate quickly for merging onto a highway or overtaking another vehicle.
Reaching maximum engine output provides immediate access to the vehicle’s full performance capabilities. Historically, understanding and utilizing this state has been critical in motorsports and performance driving, allowing for optimal acceleration and speed in competitive situations. Efficient management of this state, however, requires careful consideration of fuel consumption and potential engine strain.