Quote:
Originally Posted by JulianEdgar
I got impatient and tried some testing in very strong winds. However, the results were too inconsistent to be useful. So while you can test in some wind, really strong winds appear to be too variable, even over a 5 second or so average of top speed.
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Yes. That makes sense. Real world conditions are not really an advantage because we are talking about uncontrolled variables changing willy-nilly. When I did my coast down testing of my flat decklid spoiler in spring 2019 in the desert at El Mirage heat changes as the sun rose in the sky were noticable. Your method would be an interesting way to retest my flat decklid spoiler after I finish rebuilding it. It would take less time.
My coast down method was different than the one you describe. Rather than measuring time between two speeds, I coasted from X speed to a full stop, measuring distance with GPS. But I think I need better GPS. Mine was reporting accuracy of only to within 20 to 50 feet. I was coasting 2600 to 3500 feet to stop, so that's roughly 0.75 to 1.9 % inaccuracy in my calcs from just the GPS. Not awful but not great. What GPS are you using to confirm speed?
Here is my El Mirage data:
https://ecomodder.com/forum/showthre...tml#post602571