|
Hi All,
Its commonly said that Aero Drag reduction in % will improve highway mileage by half that %. For example, improve aerodyamic drag by 20 % will give a 10 % reduction in highway fuel consumption.
On the blown mirrors idea, the issue is air friction. A scoop system has air friction too. Probably more then just letting the air flow over the top of the car. To get it less, the tubing that routes the air to the mirrors, would need to very large. For example, for dust collector systems, the difference between 4 and 6 inch diameter is quite significant to how easily the low pressure air will flow down the tubing.
The way one might get an adavantage is route air that is already coming through, to the mirrors. And the exhaust it uniformly around the whole circumfrence of the rear of the mirror. Exhausting only partially around the circumference will result in lift or sideways thrust, which will generate more drag.
So, now, how does one get a 6 inch hole from the engine compartment to the backside of the mirror?
|