Less wind resistance. Horsepower improves acceleration. Less wind resistance improves top speed.
They also used fuel other than petrol to get extra power. About 90 is when the wind effect is most noticeable, but the drag starts at a lower speed. There was not need to stop. Engine drag and wind drag do the work.
They also used fuel other than petrol to get extra power. About 90 is when the wind effect is most noticeable, but the drag starts at a lower speed. There was not need to stop. Engine drag and wind drag do the work.
