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Total 15 documents matching your query.

1. [Land-speed] Contact patch size (score: 1): Author: Jon Wennerberg <jonwennerberg@nancyandjon.org>; Date: Mon, 17 Nov 2008 08:45:14 -0500; I posted this on the landracing.com forum -- and I'll try it here, too, to see if there's a good answer to the quandary. "I've got this nagging thought about the size of the contact patch - maybe som; /html/land-speed/2008-11/msg00135.html (7,753 bytes)
2. Re: [Land-speed] Contact patch size (score: 1): Author: "Jim Dincau" <jdincau@qnet.com>; Date: Mon, 17 Nov 2008 07:10:55 -0800; That's just how it works. Lower tire pressure equals more traction and more compliant suspension (sidewall flex). The down side is more tire distortion and heat build up. That is why some venues (mo; /html/land-speed/2008-11/msg00136.html (6,826 bytes)
3. Re: [Land-speed] Contact patch size (score: 1): Author: <neil@dbelltech.com>; Date: Mon, 17 Nov 2008 13:46:07 -0700; That works great for sand rails but on an LSR car it might lead to catastrophic tire failure. As the tire flexes as it rotates, the carcass generates heat and it gets worse as the speed increases. Re; /html/land-speed/2008-11/msg00137.html (8,738 bytes)
4. [Land-speed] Contact patch size (score: 1): Author: "Elon" <saltfever@comcast.net>; Date: Mon, 17 Nov 2008 13:23:43 -0800; It can't be as simple as that. I'm not an engineer but it has to do with the way load members reacting to a force. My guess tire construction has more to do with it. Radial vs. bias ply geometry dist; /html/land-speed/2008-11/msg00138.html (7,854 bytes)
5. Re: [Land-speed] Contact patch size (score: 1): Author: Skip Higginbotham <saltrat@pahrump.com>; Date: Mon, 17 Nov 2008 13:59:49 -0800; Please explain to me how patch size "obviously" varies with surface medium. I assume here that you are not talking about mud. We don't run on mud, snow or sand. Also, when most of us talk about pres; /html/land-speed/2008-11/msg00139.html (8,455 bytes)
6. Re: [Land-speed] Contact patch size (score: 1): Author: Jon Wennerberg <jonwennerberg@nancyandjon.org>; Date: Mon, 17 Nov 2008 17:20:26 -0500; On Nov 17, 2008, at 3:46 PM, <neil@dbelltech.com> <neil@dbelltech.com> That works great for sand rails but on an LSR car it might lead to catastrophic tire failure. As the tire flexes as it rotates,; /html/land-speed/2008-11/msg00140.html (9,978 bytes)
7. Re: [Land-speed] Contact patch size (score: 1): Author: "Doug Odom" <dlodom@charter.net>; Date: Mon, 17 Nov 2008 15:58:30 -0800; Jon, Anytime you are thinking or talking about race tires first you have to understand. It makes all the difference in the world if you are talking about a radial tire or a bias belted tire. Having s; /html/land-speed/2008-11/msg00141.html (11,002 bytes)
8. [Land-speed] Contact patch size (score: 1): Author: "Elon" <saltfever@comcast.net>; Date: Mon, 17 Nov 2008 16:28:03 -0800; Skip I am only responding to Jon's definition. He says 'patch' is the square inches of rubber in contact with the ground. Using that definition the patch area will vary with surface density or hardne; /html/land-speed/2008-11/msg00142.html (9,176 bytes)
9. Re: [Land-speed] Contact patch size (score: 1): Author: Jon Wennerberg <jonwennerberg@nancyandjon.org>; Date: Mon, 17 Nov 2008 19:45:49 -0500; Skip I am only responding to Jon's definition. He says 'patch' is the square inches of rubber in contact with the ground. Using that definition the patch area will vary with surface density or hardne; /html/land-speed/2008-11/msg00143.html (10,294 bytes)
10. Re: [Land-speed] Contact patch size (score: 1): Author: "Benn" <karhu@california.com>; Date: Mon, 17 Nov 2008 16:48:44 -0800; Awright, my 2 cents: If your tire were a 1-mil-thick balloon, then the approach strictly using tire pressure might be appropriate. But tires aren't balloons--e.g. "run flat" tires can have zero press; /html/land-speed/2008-11/msg00144.html (8,801 bytes)
11. Re: [Land-speed] Contact patch size (score: 1): Author: Jon Wennerberg <jonwennerberg@nancyandjon.org>; Date: Mon, 17 Nov 2008 19:50:57 -0500; Jon, Anytime you are thinking or talking about race tires first you have to understand. It makes all the difference in the world if you are talking about a radial tire or a bias belted tire. Having s; /html/land-speed/2008-11/msg00145.html (10,279 bytes)
12. Re: [Land-speed] Contact patch size (score: 1): Author: Jon Wennerberg <jonwennerberg@nancyandjon.org>; Date: Mon, 17 Nov 2008 19:54:56 -0500; Awright, my 2 cents: If your tire were a 1-mil-thick balloon, then the approach strictly using tire pressure might be appropriate. But tires aren't balloons--e.g. "run flat" tires can have zero press; /html/land-speed/2008-11/msg00146.html (9,809 bytes)
13. [Land-speed] Contact Patch Size (score: 1): Author: "Elon" <saltfever@comcast.net>; Date: Mon, 17 Nov 2008 17:21:32 -0800; Jon, my apologies I will have to bow out for a day or so because of current work load. I appreciate what you are trying to accomplish by filtering out the variables. So to keep it simple; you assume; /html/land-speed/2008-11/msg00147.html (8,874 bytes)
14. Re: [Land-speed] Contact patch size (score: 1): Author: "joseph lance" <jolylance@earthlink.net>; Date: Mon, 17 Nov 2008 22:06:03 -0500; You're math sounds okay, but try a simple experiment to test it with a vehicle and tire of your choice. Jack it up on one corner, paint a section of the tire with a sticky white paint, very slowly l; /html/land-speed/2008-11/msg00149.html (10,835 bytes)
15. Re: [Land-speed] Contact patch size (score: 1): Author: Jon Wennerberg <jonwennerberg@nancyandjon.org>; Date: Tue, 18 Nov 2008 08:34:02 -0500; Jon, So, lemme in on the reason for asking his particular question...trying to win a bar bet or what, lol... mayf Darn near, Mayf. We got a foot or more of snow yesterday and I was in the doldrums. W; /html/land-speed/2008-11/msg00150.html (8,395 bytes)

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