RE: [DML] Re: Upgraded Front Suspension

["Rob Grady" <rob@xxxxxxxxxxx>]

Bill,

 

I don't know who said that but they were mistaken as I normally leave the
bushings in the original factory position.

 

Rob Grady

P.J. Grady Inc.

 

 

From: dmcnews@xxxxxxxxxxxxxxx [mailto:dmcnews@xxxxxxxxxxxxxxx] On Behalf Of
content22207
Sent: Thursday, October 27, 2011 9:15 AM
To: dmcnews@xxxxxxxxxxxxxxx
Subject: [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
#5939

--- In dmcnews@xxxxxxxxxxxxxxx <mailto:dmcnews%40yahoogroups.com> , 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 <mailto:dmcnews%40yahoogroups.com> 
> > 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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