spitfires
[Top] [All Lists]

Re: Spitfire Swing Spring

To: "Barry Schwartz" <bschwart@pacbell.net>,
Subject: Re: Spitfire Swing Spring
From: <ptegler@cablespeed.com>
Date: Thu, 2 Sep 2004 12:15:39 -0400
And everyone gave me guff when I stated this a week
or two ago.     Geometry is geometry, like (or understand it)
or not   :-)

Paul Tegler
ptegler@cablespeed.com
www.teglerizer.com
----- Original Message ----- 
From: "Barry Schwartz" <bschwart@pacbell.net>
To: "Luke Lewis" <superluke@execulink.com>
Cc: <spitfires@autox.team.net>
Sent: Thursday, September 02, 2004 11:49 AM
Subject: Re: Spitfire Swing Spring


> Because when the angle of the upright changes, and you don't change the
> length of the pivot points between the spring eye and the hub on the
> upright, the axle is at a slightly different position in relation to the
> road.  In effect the axle, when lengthened (which pushes the hub out an
> inch), shortens the distance between the spring eye (fixed) and the axle
> (in the vertical plane).  This means the car sits slightly lower (given
the
> same spring loading), and if the car is lower the wheels camber inwards
more -
> ********************************************
> >How could the length of the axle change the camber, when the hub is
pressed
> >on to the end?  The upright may sit at a different angle, but the angle
of
> >the roadwheel is always 90 degrees off of the angle the axle comes out of
> >the differential (Which, ideally, would be 0).  This is also why I think
the
> >real main reason our cars lean left after a "pilot-only" drive is because
> >the tire can't "Scrub" back in and relax the spring because the bottom of
> >the tire would have to drag along the road about 1/2" to restore the car
to
> >its real resting height.  I tried this on my alignment rack at work and
the
> >car doesn't lean left when I park it on the turntables.
> Barry Schwartz (San Diego)
> ---
> Outgoing mail is certified Virus Free.
> Checked by AVG anti-virus system (http://www.grisoft.com).
> Version: 6.0.746 / Virus Database: 498 - Release Date: 8/31/2004





<Prev in Thread] Current Thread [Next in Thread>