Re: [DML] Wishbone LCA's
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Re: [DML] Wishbone LCA's



My god, if you are trying to make a wishbone out of the swaybar, that is even less of a wishbone than Ed brackets! 

As already mentioned, our swaybar, by virtue of its 45 degree bends, is extremely flexible fore/aft. That is the reason the stock LCA moves so far backwards during hard braking. Doesn't matter where you put the front bushings -- the problem is the bar itself.

A true wishbone would be a solid U shaped piece of metal, like this: http://sphotos.xx.fbcdn.net/hphotos-ash4/377059_271400929571831_100001057778755_832022_999504283_n.jpg
Speaking of which: why doesn't anybody ever give Rob a hard time about his swaybar ripping his front mounts off? If these truly are Mike Loasby's arms left over from Dunmurry, then inherent flexibility of the swaybar has been proven with nearly 3 decades of Rob's road testing!

Compare a DeLorean swaybar to a Lotus swaybar. Lotus' swaybars have a 90 degree bend, which makes them extremely inflexible fore/aft. Our swaybars are only halfway removed from a simple piece of 1" round bar, ie: very flexible lengthwise under the forces of a car.

Perhaps it is time for you to lighten up on Ed's backets. They are closer to a wishbone than what you are suggesting.

Bill Robertson
#5939



--- In dmcnews@xxxxxxxxxxxxxxx, "Martin Gutkowski" <martin@...> wrote:
>
> Where did I say anything about cutting anything in half?
> 
> The axis of rotation of the ARB is higher than the LCA main pivot axis. As long as the point where the ARB joins the LCA remains below the axis of the ARB, the LCA will be pushed back as the suspension compresses. Therefore eliminate the front bush and triangulate the lower arm along the main pivot axis and you have a true wishbone.
> 
> Martin
> Sent from my BlackBerry®
> 
> -----Original Message-----
> From: "content22207" <brobertson@...>
> Sender: dmcnews@xxxxxxxxxxxxxxx
> Date: Sun, 11 Mar 2012 22:23:20 
> To: <dmcnews@xxxxxxxxxxxxxxx>
> Reply-To: dmcnews@xxxxxxxxxxxxxxx
> Subject: Re: [DML] Wishbone LCA's
> 
> I really don't want to drive around with either my bushings cut in half, or the brackets themselves cut in half -- which were you proposing eliminating?
> 
> Bill Robertson
> #5939
> 
> --- In dmcnews@xxxxxxxxxxxxxxx, "Martin Gutkowski" <martin@> wrote:
> >
> > No, you really don't understand the point.
> > 
> > Martin
> > 
> > Sent from my BlackBerry®
> > 
> > -----Original Message-----
> > From: "content22207" <brobertson@>
> > Sender: dmcnews@xxxxxxxxxxxxxxx
> > Date: Sun, 11 Mar 2012 22:14:44 
> > To: <dmcnews@xxxxxxxxxxxxxxx>
> > Reply-To: dmcnews@xxxxxxxxxxxxxxx
> > Subject: Re: [DML] Wishbone LCA's
> > 
> > Or simply turn them around backwards....
> > 
> > Bill Robertson
> > #5939
> > 
> > --- In dmcnews@xxxxxxxxxxxxxxx, "Martin Gutkowski" <martin@> wrote:
> > >
> > > The Esprit evolved through many iterations and those contemporary to the DeLorean were the same but later units definitely were as you describe. The same can be achieved with the DeLorean by eliminating the front of the two LCA-ARB bushes
> > > 
> > > Martin
> > >  
> > > Sent from my BlackBerry®
> > > 
> > > -----Original Message-----
> > > From: Marc Levy <malevy_nj@>
> > > Sender: dmcnews@xxxxxxxxxxxxxxx
> > > Date: Sun, 11 Mar 2012 14:41:02 
> > > To: <dmcnews@xxxxxxxxxxxxxxx>
> > > Reply-To: dmcnews@xxxxxxxxxxxxxxx
> > > Subject: [DML] Wishbone LCA's
> > > 
> > > I just recently had a conversation with a Lotus owner about this, and hand an "ah-ha" moment when he said the ARB is just pushed in to the bushing on the Esprit design.  There is no nut on the back end to lock it in to the LCA..  
> > > 
> > > So, if that is true, the ARB in the lotus application is free to travel forward/aft inside the LCA..  eliminating the problem that Mike Loasby talked about.  
> > > 
> > > Clearly, the nut and front collar is needed in the DeLorean application because that is all that keeps the LCA from collapsing under the car.  It makes me wonder, can Ed's brackets keep the LCA in place if the nut on the end of the ARB was left off??   I know *I* would not try it on my car, and for sure would not propose that anyone else try it...  
> > > 
> > > 
> > > 
> > > --- On Sun, 3/11/12, Martin Gutkowski <martin@> wrote:
> > > 
> > > > I was referring to your frame
> > > > extension modification as heath-robinson, not Ed's brackets
> > > > which are a professionally produced product.
> > > > 
> > > > However in *my* professional opinion, the design is flawed.
> > > > If you're going to make the LCA's act as wishbones, make
> > > > them wishbones. Eliminate all fore/aft movement including
> > > > that generated by the ARB. Simples.
> > > > 
> > > > I have a concept in my head, I have started come CAD models
> > > > but I'm too busy making a living to spend much time on it at
> > > > present
> > > 
> > > 
> > > 
> > > ------------------------------------
> > > 
> > > To address comments privately to the moderating team, please address:
> > > moderators@
> > > 
> > > For more info on the list, tech articles, cars for sale see www.dmcnews.com
> > > 
> > > To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnewsYahoo! Groups Links
> > >
> > 
> > 
> > 
> > 
> > ------------------------------------
> > 
> > To address comments privately to the moderating team, please address:
> > moderators@
> > 
> > For more info on the list, tech articles, cars for sale see www.dmcnews.com
> > 
> > To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnewsYahoo! Groups Links
> >
> 
> 
> 
> 
> ------------------------------------
> 
> To address comments privately to the moderating team, please address:
> moderators@...
> 
> For more info on the list, tech articles, cars for sale see www.dmcnews.com
> 
> To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnewsYahoo! Groups Links
>




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