Quote:
Originally Posted by chillsworld
So you're telling me my radiator ducting becomes a secondary form of propulsion as air flies out the hood?  |
Apparently it was worth several mph on the P51 fighter back in WWII, enough that they studied and optimized the effect. I don't have a reference handy but I think one or more of the NACA papers at the NASA archive deal with this. On a car at 55 mph, who knows :-).