10-18-2009, 09:47 PM
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#11 (permalink)
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Moderate your Moderation.
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Quote:
Originally Posted by MetroMPG
I don't watch the show regularly, but this one might be worth tuning in for the entertainment factor.
Also.. don't they have it backward? Isn't the common myth that the clean car gets better mileage?
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New myth - it stems from the golf ball conundrum.
I can't imagine what type of thoughtless people frequent the MB forums to come up with/perpetuate this ****.
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"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"
I'd like to think that people might open their eyes at some point... instead, I find it more and more likely that I'll just close mine.
-- Author kept secret.
Je ne veux pas d'une meilleure vie. Je veux être heureux avec celle que j'ai maintenant.
(I do not want a better life. I want to be happy with the one I have now.)
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Today
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Other popular topics in this forum...
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10-18-2009, 10:30 PM
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#12 (permalink)
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EcoModder
Join Date: Jul 2008
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Golf Balls
It's always been my understanding (and that of my college professors) that dimpling an entire object serves no purpose if that object will not be changing orientation. The reason that it works on a golf ball is because the golf ball spins in the air and is not stabilized. I have seen pictures of bowling balls being dropped into some thick liquid, and they got the same effect by putting a simple wire to trip the boundary layer toward the front of the ball. Before you go dimpling the entire surface of an automobile, consider strategically placing something to trip the boundary layer.
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10-19-2009, 01:33 AM
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#13 (permalink)
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Grasshopper
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I was going to post this but I figured someone would get to it before me
From what I saw, theyre going to load up some kind of paint gun and spray mud on it
then they stamp it with a "golf ball" pattern
theyll also probably be covering up gaps and making some partial grill block with caked up mud
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10-19-2009, 04:06 AM
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#14 (permalink)
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EcoModding Lurker
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I just set my TiVo to record it. 
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10-19-2009, 12:27 PM
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#15 (permalink)
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Batman Junior
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Quote:
Originally Posted by RobertSmalls
I predict their conclusion will be "we can not detect a fuel economy difference between these two cars".
It would take a pretty extreme setup ...
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I predict the same thing - no detectable difference from a clean vehicle to a "plausibly" muddy one.
I also predict that where it will get most interesting and entertaining is when they test the "implausibly" muddy vehicle at the end to force some result to show up. |
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10-19-2009, 01:42 PM
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#16 (permalink)
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aero guerrilla
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Quote:
Originally Posted by MetroMPG
I also predict that where it will get most interesting and entertaining is when they test the "implausibly" muddy vehicle at the end to force some result to show up.
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Maybe they'll just blow it up?
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e·co·mod·ding: the art of turning vehicles into what they should be
What matters is where you're going, not how fast.
"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell
Piwoslaw's Peugeot 307sw modding thread
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10-19-2009, 04:50 PM
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#17 (permalink)
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Master EcoModder
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I keep my cars clean and waxed regularly as well as inside the garage.
I always wondered if the rough shark skin type surface would make a difference.
Golf ball dimples are more for predictable flight paths. Hit a smooth golf ball and its flight path is very erratic.
regards
Mech
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10-19-2009, 09:47 PM
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#18 (permalink)
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EcoModding Lurker
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VW set a 24 hour distance record with a very streamlined diesel car ~20 years ago and after each fuel stop, it gained several MPH due to the crew removing all the bugs from the nose. The speed slowly declined through each segment until the next 'scrub' cycle...
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10-19-2009, 09:49 PM
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#19 (permalink)
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Moderate your Moderation.
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Quote:
Originally Posted by MadBill
VW set a 24 hour distance record with a very streamlined diesel car ~20 years ago and after each fuel stop, it gained several MPH due to the crew removing all the bugs from the nose. The speed slowly declined through each segment until the next 'scrub' cycle...
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Source?
Welcome to EM
__________________
"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"
I'd like to think that people might open their eyes at some point... instead, I find it more and more likely that I'll just close mine.
-- Author kept secret.
Je ne veux pas d'une meilleure vie. Je veux être heureux avec celle que j'ai maintenant.
(I do not want a better life. I want to be happy with the one I have now.)
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10-19-2009, 10:34 PM
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#20 (permalink)
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EcoModding Lurker
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Maybe someone more adept at Googling than I can narrow down the results below the half-million mark, but the reference at the bottom of this article: http://media.gm.com/de/opel/de/downl..._Speedster.doc
is the best I could manage. I think the writeup was in Car & Driver in 1977.
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Past 
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