- 1. [Land-speed] Polar Moment (score: 1)
- Author: "Elon" <saltfever@comcast.net>
- Date: Tue, 15 Jan 2008 18:41:59 -0800
- A few days ago Ed mentioned how important Polar Moment (PM) was and felt a car should be set up with a high polar moment. Jack also confirmed such a configuration. With Jack's outstanding experience,
- /html/land-speed/2008-01/msg00168.html (8,682 bytes)
- 2. Re: [Land-speed] Polar Moment (score: 1)
- Author: <neil@dbelltech.com>
- Date: Tue, 15 Jan 2008 19:53:53 -0700
- I think the main point of having a high polar moment of inertia in an LSR vehicle is to keep the car controllable. A low PM vehicle is great for autocross and road racing as it can change direction
- /html/land-speed/2008-01/msg00169.html (9,351 bytes)
- 3. [Land-speed] Polar Moment (score: 1)
- Author: "Elon" <saltfever@comcast.net>
- Date: Tue, 15 Jan 2008 19:45:28 -0800
- Hi Neil. Good point, I understand the effect on controllability. I can see, on a short wheel base, car how you would want to slow down the twitchiness! However, some small coupes and sedans I see the
- /html/land-speed/2008-01/msg00171.html (7,704 bytes)
- 4. Re: [Land-speed] Polar Moment (score: 1)
- Author: NT788@comcast.net
- Date: Wed, 16 Jan 2008 04:07:39 +0000
- I agree with Neil! Jack _______________________________________________ Support Team.Net http://www.team.net/donate.html Land-speed mailing list http://autox.team.net/mailman/listinfo/land-speed
- /html/land-speed/2008-01/msg00172.html (8,285 bytes)
- 5. [Land-speed] Polar Moment (score: 1)
- Author: "Elon" <saltfever@comcast.net>
- Date: Wed, 16 Jan 2008 20:10:54 -0800
- I want to offer sincere thanks to everyone that responded to my request. I am overwhelmed with the number of responses (both public and private) within a 4 hr period. I am now starting to work my way
- /html/land-speed/2008-01/msg00206.html (7,506 bytes)
- 6. [Land-speed] Polar Moment (score: 1)
- Author: "Elon" <saltfever@comcast.net>
- Date: Wed, 16 Jan 2008 23:05:11 -0800
- Great idea, Neil. Even if you don't have a swimming pool you could use something like 10"-12" irrigation PVC. Cap it at both ends and fill with water. A single sawhorse in the back yard could set pla
- /html/land-speed/2008-01/msg00207.html (8,094 bytes)
- 7. Re: [Land-speed] Polar Moment (score: 1)
- Author: <neil@dbelltech.com>
- Date: Thu, 17 Jan 2008 09:49:39 -0700
- That might work. The TPS sensor would need a big pulley to keep its rotation angle within limits. With a big pulley the drag of the TPS sensor might not be to much of a factor. Regards, Neil Tucson,
- /html/land-speed/2008-01/msg00210.html (9,490 bytes)
- 8. Re: [Land-speed] Polar Moment (score: 1)
- Author: NT788@comcast.net
- Date: Thu, 17 Jan 2008 17:06:10 +0000
- Elon Caster when turned creats a diagonal weight bias ie right turn loads r.f and l.r. very bad with a locked rear end!Wheels steer best when all four both touch the ground equally"lsr." Weight on fr
- /html/land-speed/2008-01/msg00212.html (9,225 bytes)
- 9. Re: [Land-speed] Polar Moment (score: 1)
- Author: "don thigpen" <piggy@accessatc.net>
- Date: Thu, 17 Jan 2008 12:33:34 -0500
- A lot of caster = steer-correct- steer-correct-steer-spin! A lot of castor would work good rock climbing! jack you mean i have had this all wrong for the last 45 years ? oh you are talking about nega
- /html/land-speed/2008-01/msg00213.html (8,384 bytes)
- 10. Re: [Land-speed] Polar Moment (score: 1)
- Author: NT788@comcast.net
- Date: Thu, 17 Jan 2008 17:54:29 +0000
- Hi Don Caster is an old fashioned notion, old rails had alot, they didn't understand bump steer. IE 10' drag link with 4" control arms. In "63 I welded my rails axle to the frame. They said I had to
- /html/land-speed/2008-01/msg00216.html (9,117 bytes)
- 11. Re: [Land-speed] Polar Moment (score: 1)
- Author: NT788@comcast.net
- Date: Thu, 17 Jan 2008 18:53:41 +0000
- O deg in 7070,5050,8080,3deg 988 788 all go straight Jack oh , i understand bump steer entirely and it is a matter of where you put the steering elements of the front end more than anything , along w
- /html/land-speed/2008-01/msg00217.html (8,652 bytes)
- 12. Re: [Land-speed] Polar Moment (score: 1)
- Author: "don thigpen" <piggy@accessatc.net>
- Date: Thu, 17 Jan 2008 13:07:05 -0500
- oh , i understand bump steer entirely and it is a matter of where you put the steering elements of the front end more than anything , along with the range of travel of the spindle . but ........ camb
- /html/land-speed/2008-01/msg00219.html (8,546 bytes)
- 13. Re: [Land-speed] Polar Moment (score: 1)
- Author: drmayf <drmayf@mayfco.com>
- Date: Thu, 17 Jan 2008 15:46:42 -0800
- Well, Don, I agree with you, lol! I have about 16 degrees in my SUnbeam and it is pretty much a light steering control car. When I managed to spin it this October due to other issues, I found the whe
- /html/land-speed/2008-01/msg00222.html (9,951 bytes)
- 14. Re: [Land-speed] Polar Moment (score: 1)
- Author: "Ed Van Scoy" <ed@vetteracing.com>
- Date: Fri, 18 Jan 2008 00:37:35 +0000
- Actually Mayf, it was a 900 degree "maneuver"..... Idid n't run over my chute either.... In fact, if it had come out in the first place, Iwouldn't have had to pitch the car ;-) (shoulda just run over
- /html/land-speed/2008-01/msg00224.html (10,298 bytes)
- 15. Re: [Land-speed] Polar Moment (score: 1)
- Author: "joseph lance" <jolylance@earthlink.net>
- Date: Thu, 17 Jan 2008 20:23:15 -0500
- If I remember correctly, some American auto manufacturers (in the 1950s or thereabouts) went to zero or negative caster to reduce low speed steering effort (before power steering) with those nose hea
- /html/land-speed/2008-01/msg00228.html (9,685 bytes)
- 16. Re: [Land-speed] Polar Moment (score: 1)
- Author: drmayf <drmayf@mayfco.com>
- Date: Thu, 17 Jan 2008 17:28:04 -0800
- Oh! I was just quoting you on one of your emails to me..now the truth comes out, lol. In my instance, when I pulled the chute, I moved my had back to the steering wheel expecting the small lurch..ins
- /html/land-speed/2008-01/msg00229.html (8,436 bytes)
- 17. Re: [Land-speed] Polar Moment (score: 1)
- Author: "Ed Van Scoy" <ed@vetteracing.com>
- Date: Fri, 18 Jan 2008 02:30:53 +0000
- And... I have 50 feet of line on my chute, which gives me plenty of time to "get a grip" before it hits. Ed Van Scoy SCTA-BNI/Gear Grinder _______________________________________________ Support Team
- /html/land-speed/2008-01/msg00233.html (9,072 bytes)
- 18. Re: [Land-speed] Polar Moment (score: 1)
- Author: "John Burk" <joyseydevil@comcast.net>
- Date: Fri, 18 Jan 2008 00:44:44 -0500
- Not if the scrub radius is zero . John _______________________________________________ Support Team.Net http://www.team.net/donate.html Land-speed mailing list http://autox.team.net/mailman/listinfo
- /html/land-speed/2008-01/msg00239.html (8,433 bytes)
- 19. Re: [Land-speed] Polar Moment (score: 1)
- Author: drmayf <drmayf@mayfco.com>
- Date: Thu, 17 Jan 2008 22:17:00 -0800
- My tow is about 40 ft or so. That gives me a couple of seconds to grip the wheel plenty of time. And my chute never hits like a ton of bricks but you go faster thanme, lol.. Every body goes faster th
- /html/land-speed/2008-01/msg00240.html (9,397 bytes)
- 20. Re: [Land-speed] Polar Moment (score: 1)
- Author: NT788@comcast.net
- Date: Sun, 20 Jan 2008 14:54:01 +0000
- Could be, be carefull! Jack _______________________________________________ Support Team.Net http://www.team.net/donate.html Land-speed mailing list http://autox.team.net/mailman/listinfo/land-speed
- /html/land-speed/2008-01/msg00271.html (8,754 bytes)
This search system is powered by
Namazu