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Old 07-13-2010, 01:35 PM   #65 (permalink)
bnmorgan
16 Ferret Circus
 
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Join Date: May 2009
Location: Ecru, Mississippi
Posts: 95

GrumblyDavidson - '00 Harley Davidson Road King FLHRP-I
90 day: 38.37 mpg (US)

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Quote:
Originally Posted by Frank Lee View Post
Those lips do nothing except make money for the sellers.
On a MC windshield, I must fervently disagree. The one i have on my Givi shield (on an SV650 motorcycle) is fairly easily removable, and I've checked it one versus the other several times, as have other riders on my bike. It makes a significant difference in the buffeting of the helmet.

That said, it don't mean it would or should do squat for the cars. I just wanna figure out something to bring us a little better airflow. I'm still not sure if more or less adhesion is good. I understand the idea of abrupt detachment being good, with smaller detachment "zone". I wonder if some sort of VG would be beneficial by taking it further down the car instead of that 3x5' box of turbulence. either a quick zap like the roof spoiler someone mentioned, or something to help it stay stuck till further down the car, etc. getting air to do what I want isn't the problem, it's knowing what i want that I don't get. Aerodynamics and aeronautic engineering aren't in my field.
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