Exposed air filters in the engine bay lead to hot air intake ... Lift the hood of your car and have a good look at the intake system. Where does the airbox get outside air from?
The pumping of an engine’s pistons creates a vacuum in the cylinders, and that vacuum is filled by air drawn in through the intake system. If leaks develop in hoses or engine parts downstream ...
UK engineers developing a novel propulsion system say their technology ... The faster the flow of air into the engine's intake during the high-speed ascent, the higher the temperature.