Subject	Golf Ball Effect
Posted by	Shiers69 on October 23, 2009 at 12:16 PM
	This message has been viewed 569 times.
Message	Happy Friday everyone! In case you haven't seen this yet, mythbusters tackled an interesting automotive related myth in this episode. Does a dirty car create a golf ball like effect resulting in reduced drag? Results were interesting, to sum it up... Baseline: 26mpg Dirty Car: 26mpg BUSTED But then they packed the car with molding clay and actually tried to reproduce golf ball dimples. Car w/ clay on panels: 26mpg Car w/ Dimples cut in clay: 29+mpg I'd like to see some professionals throw up numbers before I intentionally drive my Z through a hailstorm to get the same effect. Still interesting though. Here's the clip (see 40 min mark) La-Z-Link Here's more info La-Z-Link One more La-Z-Link
Follow Ups	Golf Ball Effect - Shiers69 12:16:03 10/23/09 hmm...pretty interesting! (n/m) - MAD_96TT(ATX) 12:26:51 10/23/09 wow, maybe some rethininking into aerodynamics will come - d_flore 12:31:35 10/23/09 lol - ZLover4Life 16:43:50 10/23/09 I think you mean the marketing people.. - turtleboy 21:51:04 10/23/09 No, I mean the engineers. - ZLover4Life 22:59:58 10/23/09 Link and explanation - NytWolf 12:37:14 10/23/09 The dimples will create positive lift (not ideal). - ni[X]it 12:38:53 10/23/09 on dry streets with good traction, i would hate to see lift - d_flore 12:42:53 10/23/09 Dead on. If golfballs didn't have dimples you wouldn't - Gold Z 12:45:29 10/23/09 I'm pretty sure I can miss the green either way (n/m) - Shiers69 13:04:47 10/23/09 2nd, they haven't invented a dimple big enough for my - zgene4 13:11:56 10/23/09 The dimples cause a delay in the seperation - RICH1 13:09:54 10/23/09 Idea: put the dimples on the underside of the car - jkeyser14 13:14:31 10/23/09 no dimples on the bottom of F1 cars, certainly Adrian Newey - zgene4 13:24:54 10/23/09 Lexus did that on the GS430... - CaliguyPurdue (Selin Design) 13:53:02 10/23/09 Re: The dimples cause a delay in the seperation - ni[X]it 14:36:48 10/23/09 what about inverted dimples for mad down forces (n/m) - Adam (NoVA) 15:07:33 10/23/09 Same concept as a boost jet (n/m) - jdubs 15:08:48 10/23/09 that's the venturi effect. (n/m) - ni[X]it 15:47:23 10/23/09 Bernoulli is as Bernoulli does (n/m) - Technomancer 16:15:04 10/23/09 Saw that one. Was not expecting the results! - collegeboy 13:10:41 10/23/09 It surprised me too. - lazer(NV) 14:57:36 10/23/09 for extra geek points... - Technomancer 16:14:40 10/23/09 Re: for extra geek points... - ttzcadet 17:58:58 10/23/09 lol (n/m) - Ashman2k2 18:30:27 10/23/09 Re: Saw that one. Was not expecting the results! - ybnormal70 16:24:42 10/23/09 What were the results of the tailgate episode? (n/m) - collegeboy 00:41:45 10/24/09 Re: What were the results of the tailgate episode? - ybnormal70 07:57:50 10/24/09 Good excuse not to remove the dings from my car! (n/m) - ZXoltan 13:28:04 10/23/09 dents in bondo ftw (n/m) - ZiNnYc 21:08:27 10/23/09 Interesting experiment. - darkmann 13:21:49 10/24/09
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