10-15-2010, 03:45 PM
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#11 (permalink)
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T-100 Road Warrior
Join Date: Apr 2008
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Please reconsider posting up piccies. Sometimes we can spot things that you haven't thought of or might have dismissed. Remember to take all comments with a grain of salt and don't take anything personal. In the end...it's yer vehicle. 
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 Today
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10-15-2010, 04:37 PM
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#12 (permalink)
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Pokémoderator
Join Date: Dec 2007
Location: Southern California
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2007 ion2 -
Even if it doesn't work, pictures are always appreciated because they help give people ideas on how to do their mods.
CarloSW2
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10-15-2010, 05:28 PM
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#13 (permalink)
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in tents
Join Date: Dec 2009
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At what speed did you start your coast-down? 38 seconds to coast down to zero MPH implies you were going less than 40mph to start. Aerodynamic drag goes up with speed squared, so if you test at 60mph (or whatever your cruise speed is), the benefit (if any) of the skirts will be more pronounced.
__________________
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10-15-2010, 05:52 PM
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#14 (permalink)
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(:
Join Date: Jan 2008
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I ran skirts for a couple years and could not pick any fe change out of the log that could be attributed to them. Now they're off.
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10-15-2010, 06:09 PM
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#15 (permalink)
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...beats walking...
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...I'd agree, aerodynamics are more important the faster you go, so 0-40 mph wouldn't be anywhere nearly as "drag'y" as 50-70 mph.
...hence, city driving won't display as much (if any?) FE-improvement as highway driving will.
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10-15-2010, 07:47 PM
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#16 (permalink)
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Master EcoModder
Join Date: May 2008
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Air temperature affects drag to a certain extent. If the tires are underinflated, or a brake is dragging, or there is an alignment problem, these will swamp the difference in aero.
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10-15-2010, 10:24 PM
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#17 (permalink)
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VX Padawan
Join Date: Apr 2008
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Pics would be a huge help!
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10-15-2010, 10:42 PM
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#18 (permalink)
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Pokémoderator
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Old Tele man -
Quote:
Originally Posted by Old Tele man
...I'd agree, aerodynamics are more important the faster you go, so 0-40 mph wouldn't be anywhere nearly as "drag'y" as 50-70 mph.
...hence, city driving won't display as much (if any?) FE-improvement as highway driving will.
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Yeah, I like to say that well-designed aero-mods help all of the time, but the magnitude is, as you say, greatly diminished and/or undetectable at low speeds (but it's still there). The best-case scenario is that it "all adds up".
CarloSW2 |
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10-15-2010, 11:21 PM
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#19 (permalink)
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EcoModding Lurker
Join Date: Sep 2010
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It was 70 to 40.
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10-16-2010, 12:44 PM
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#20 (permalink)
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EcoModding Apprentice
Join Date: Jun 2010
Location: CT usa
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As an honorary scotsman im going to call mine wheel kilts.
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