Quote:
Originally Posted by redneck
I talked with a representative of Smart Truck today. I asked him the purpose of part C. He explained to me that part C was a rear diffusser and that the whole Under Tray System was designed to compress and tunnel the air. Thus speeding it up before entering the low pressure area. If you look closely at the bottom of part C you will notice a slight downward angle that helps with final compression.
I told him about this website so maybe he will chime in later.
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He probably should not use the 'compress' and compression' as terms to describe what his product does.This phenomena would not begin to occur until around 250 mph.
Better that he should say it 'accelerates' the flow which actually lowers its pressure.
It's hard to imagine that it does anything other than ride in the wake of the first component ahead of the wheels and the wheels themselves.