All engines prefer cool air as it's more dense and so contains more oxygen molecules for a given volume, hence bigger bang. I don't know of any injection system that has any requirement for warm air Carburettor icing is a big issue on piston engine aircraft with carbs, especially in conditions of high humidity and low throttie openings, such as on an approach. All such aircraft have a carb heat control to offset this undesirable adiabatic effect.
Then why does a Rover HotWire +8 have such elaborate stuff to heat this cool air?
Carburettor icing is a big issue on piston engine aircraft with carbs, especially in conditions of high humidity and low throttie openings, such as on an approach. All such aircraft have a carb heat control to offset this undesirable adiabatic effect.