- 1. Semi-Trailing Arm Next Ralph Nader No No??? (score: 1)
- Author: Paul Foster <pfoster@gdi.net>
- Date: Mon, 16 Aug 1999 14:51:01 -0400
- <<<FWIW the likely cause of the E30's propensity to roll is the semi-trailing-arm layout of the rear suspension. The roll center of such a design is very high compared to a strut or double A-arm desi
- /html/autox/1999-08/msg00570.html (8,444 bytes)
- 2. Re: Semi-Trailing Arm Next Ralph Nader No No??? (score: 1)
- Author: Sam Strano <strano@stranoparts.com>
- Date: Mon, 16 Aug 1999 15:07:39 -0400
- As did the 280 and 300ZX's from 79-89. I only know one that rolled (but I think there were other circumstances, like a curb involved). Mercedes also have semi-trailing arms. Sam Strano Strano Perform
- /html/autox/1999-08/msg00573.html (8,401 bytes)
- 3. Re: Semi-Trailing Arm Next Ralph Nader No No??? (score: 1)
- Author: Mark Sirota <msirota@isc.upenn.edu>
- Date: Mon, 16 Aug 1999 15:27:50 -0400
- Nonsense. I'm not intimately familiar with the 911, 924, 928, 944, or 968, but the 914 did not have semi-trailing arms. It had true trailing arms. They run parallel to the car, and their pivot was pe
- /html/autox/1999-08/msg00574.html (9,431 bytes)
- 4. Re: Semi-Trailing Arm Next Ralph Nader No No??? (score: 1)
- Author: "Justin Hughes" <ka1ult@channel1.com>
- Date: Mon, 16 Aug 1999 15:45:54 -0400
- Well that's reassuring, being a 320i pilot. :) Yet I can attest that even with the optional rear sway bar, a stock E21 has A LOT of body roll (see my pics at http://www.channel1.com/users/ka1ult/igo
- /html/autox/1999-08/msg00575.html (9,152 bytes)
- 5. Re: Semi-Trailing Arm Next Ralph Nader No No??? (score: 1)
- Author: Paul Foster <pfoster@gdi.net>
- Date: Mon, 16 Aug 1999 15:56:59 -0400
- Well, the 914 may not have, and also the 911 - certainly no air-cooled expert, but the 924, 944, and 968 certainly use semi-trailing arms. Paul Foster
- /html/autox/1999-08/msg00576.html (10,080 bytes)
- 6. Re: Semi-Trailing Arm Next Ralph Nader No No??? (score: 1)
- Author: Mark Sirota <msirota@isc.upenn.edu>
- Date: Mon, 16 Aug 1999 16:40:15 -0400
- I'm not talking about the amount of body roll. I'm talking about the roll rate -- the speed at which the body rolls. And in particular, the speed at which it contacts the bump stops (which results in
- /html/autox/1999-08/msg00580.html (8,861 bytes)
- 7. Re: Semi-Trailing Arm Next Ralph Nader No No??? (score: 1)
- Author: "Justin Hughes" <ka1ult@channel1.com>
- Date: Mon, 16 Aug 1999 16:45:52 -0400
- Gotcha - I misunderstood. My 320i can roll all it wants, but if it bounces softly off the bump stops instead of suddenly halting, then continuing to roll onto the outside two wheels, I'm OK. I sit c
- /html/autox/1999-08/msg00582.html (9,211 bytes)
- 8. Re: Semi-Trailing Arm Next Ralph Nader No No??? (score: 1)
- Author: TeamZ3@aol.com
- Date: Mon, 16 Aug 1999 17:28:42 EDT
- << The same suspension, and same problem, is shared by 318Ti's and Z3's (yep, one of those even rolled at Mineral Wells a couple years back).>>> I'm not sure if you can blame semi-trailing arm suspen
- /html/autox/1999-08/msg00586.html (9,316 bytes)
- 9. RE: Semi-Trailing Arm Next Ralph Nader No No??? (score: 1)
- Author: Alan Pozner <AlanP@identicard.com>
- Date: Mon, 16 Aug 1999 17:58:44 -0400
- What do you think causes the especially high roll rate? Obviously soft compression shocks make a difference but it must be something more significant in this case. Interested in hearing your ideas..
- /html/autox/1999-08/msg00588.html (9,690 bytes)
- 10. Re: Semi-Trailing Arm Next Ralph Nader No No??? (score: 1)
- Author: Mark Sirota <msirota@isc.upenn.edu>
- Date: Mon, 16 Aug 1999 18:07:18 -0400
- I've never closely studied the suspension geometry or anything, but I'd expect to find a combination of high roll couple (distance from the roll center to the CG at each axle), low roll stiffness, an
- /html/autox/1999-08/msg00592.html (9,253 bytes)
- 11. RE: Semi-Trailing Arm Next Ralph Nader No No??? (score: 1)
- Author: "Kelly, Katie" <kkelly@spss.com>
- Date: Mon, 16 Aug 1999 15:18:54 -0700
- Mark Sirota writes... Kinda like airplanes. Airplanes aren't dangerous. It's that damned gravity. Sorry. I have nothing intelligent to contribute. It's all I had. Katie K.
- /html/autox/1999-08/msg00596.html (10,136 bytes)
- 12. Re: Semi-Trailing Arm Next Ralph Nader No No??? (score: 1)
- Author: "Jeff Lloyd" <jslz3@hotmail.com>
- Date: Mon, 16 Aug 1999 23:04:14 GMT
- Hello all, As president of "people for the ethical treatment of semi trailing arms" I just want to introduce my $.02 shocks did make all the difference in the world on my e36-7 AKA Z3 the propensity
- /html/autox/1999-08/msg00600.html (9,294 bytes)
- 13. Re: Semi-Trailing Arm Next Ralph Nader No No??? (score: 1)
- Author: Hottvr@aol.com
- Date: Mon, 16 Aug 1999 19:45:19 EDT
- << Sorry. I have nothing intelligent to contribute. It's all I had. Katie K. >> This is just too easy, even for me. Katie thats a "Classic" Mike B. TLS#1
- /html/autox/1999-08/msg00602.html (8,895 bytes)
- 14. Re: Semi-Trailing Arm Next Ralph Nader No No??? (score: 1)
- Author: "Steve Hoult" <stevehoult@home.com>
- Date: Mon, 16 Aug 1999 19:49:38 -0500
- Possibly not, but when you combine it with the high center of gravity (relatively) it does contribute. Steve Hoult '89 SC ASP 9 Flat Duck Racing Visit the MR2 SC Registry at www.mr2sc.com Join the M
- /html/autox/1999-08/msg00609.html (9,054 bytes)
- 15. Re: Semi-Trailing Arm Next Ralph Nader No No??? (score: 1)
- Author: "Phil Ethier" <pethier@isd.net>
- Date: Tue, 17 Aug 1999 00:59:05 -0500
- And about every GM front-engine rear-drive live-axle car and truck which used coil springs on the back. Phil Ethier Saint Paul Minnesota USA Lotus Europa, VW Quantum Syncro, Chev Suburban LOON, TCVWC
- /html/autox/1999-08/msg00625.html (9,493 bytes)
- 16. Re: Semi-Trailing Arm Next Ralph Nader No No??? (score: 1)
- Author: "Phil Ethier" <pethier@isd.net>
- Date: Tue, 17 Aug 1999 01:02:11 -0500
- the 914 did not have semi-trailing arms. Sounds like the Quantum Syncro. Also several FWD cars from VW, I believe. My '75 Rabbit had full-trailing arms. Phil Ethier Saint Paul Minnesota USA Lotus Eur
- /html/autox/1999-08/msg00626.html (8,896 bytes)
- 17. Re: Semi-Trailing Arm Next Ralph Nader No No??? (score: 1)
- Author: Craig Blome <cblome@yahoo.com>
- Date: Tue, 17 Aug 1999 05:41:49 -0700 (PDT)
- I misstated the case then...it isn't the semi-trailing arm layout in general so much as the specific implementation on the E30 (presumably high CG, soft springs/shocks, hard bump stops...anyone know
- /html/autox/1999-08/msg00633.html (8,796 bytes)
- 18. Re: Semi-Trailing Arm Next Ralph Nader No No??? (score: 1)
- Author: "Justin Hughes" <ka1ult@channel1.com>
- Date: Tue, 17 Aug 1999 09:38:46 -0400
- Kind of like a certain digest member who shall remain anonymous told me recently in a private e-mail (and correctly so) - don't worry so much about the car, worry about fixing that loose nut behind
- /html/autox/1999-08/msg00639.html (8,555 bytes)
- 19. Re: Semi-Trailing Arm Next Ralph Nader No No??? (score: 1)
- Author: Roland Zuk <roland@digiweb.com>
- Date: Wed, 18 Aug 1999 22:59:10 -0400 (Eastern Daylight Time)
- Interesting discussion regarding various vehicle models/designs, dampers, etc., but, IMHO, the original premise of this debate is incorrect: It is true that a high roll center may create a propensity
- /html/autox/1999-08/msg00754.html (9,584 bytes)
- 20. Re: Semi-Trailing Arm Next Ralph Nader No No??? (score: 1)
- Author: Craig Blome <cblome@yahoo.com>
- Date: Thu, 19 Aug 1999 06:54:57 -0700 (PDT)
- Close; actually, the roll center winds up being a function of the angle of the pivot axis vs. the axle centerline. Draw the pivot axis of each arm out to where it intersects the vertical plane of the
- /html/autox/1999-08/msg00783.html (9,661 bytes)
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