Quote:
Originally Posted by Topless
It's a physics thing. By breaking the lift it also partially diffuses the aft vortex behind the car. A major source of drag. The same is true in a standard pickup truck. All the homies drive around with their tailgate down thinking it will improve gas mileage but it has the opposite effect. Having the tailgate in place creates a pressure zone known as a separated bubble that significantly improves the aerodynamics. Both concepts were proven in the wind tunnel.
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I think that applies when another car is drafting the car in front of it. I'm am however going to read up more on this.
http://www.strangeholiday.com/oops/stuff/annurev.fluid.38.050304.092016.pdf
39 pages, I'm all for learning something new.
My car
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