[DML] Re: Upgraded Front Suspension
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[DML] Re: Upgraded Front Suspension

This is why I left rubber bushings in the crumple extension mounts (LCA end is polyurethane). I also turned them around so the meaty side is towards the back (sway bar arc pushes forward into an empty space). Horizontally it makes no difference which way the bushing is turned.

Combined with the 45 degree shape of our sway bars (Lotus' sway bars have a sharp 90 degree bend), I think arc of travel arguments are a Red Herring.

An owner at FFT'11 told me Rob Grady turns his bushings around as normal practice even on OEM suspensions, probably to try and minimize the LCA pulling backwards during braking.

Bill Robertson

--- In dmcnews@xxxxxxxxxxxxxxx, Marc Levy <malevy_nj@...> wrote:
> Thanks Mike..
> So, in the Lotus application there was no obvious changes made to allow for the arc travel of the ARB?  The movement is absorbed by the ARB itself?  Or did they maybe use softer bushings? 
> --- On Thu, 10/27/11, Michael Griese <mike.griese@...> wrote:
> > From: Michael Griese <mike.griese@...>
> > Subject: Re: [DML] Upgraded Front Suspension
> > To: dmcnews@xxxxxxxxxxxxxxx
> > Date: Thursday, October 27, 2011, 1:22 AM
> > Basically Lotus modified the original
> > LCA to take on a lower A arm geometry.  
> > They separated the fore/aft location of the LCA from the
> > ARB by adding the extra 
> > piece.  The washer you see is not a collar but a
> > washer used to compress the 
> > bushing on the end of the ARB.  The reasons Lotus did
> > this was the improvements 
> > in tire technologies over the years, the increase in
> > horsepower available from 
> > the drivetrain and the improvements in braking.  The
> > improved grip of 
> > performance tires was starting to overwhelm the suspension
> > design.
> > 
> >  --
> > Mike
> > 
> >


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