How about a 60 chevy pu
>
> From: "John Burk" <joyseydevil@comcast.net>
> Date: 2003/10/13 Mon PM 09:00:30 CDT
> To: <land-speed@autox.team.net>
> Subject: Fw: rear suspention
>
> From: "John Burk" <joyseydevil@comcast.net>
> To: <ddahlgren@snet.net>
> Sent: Monday, October 13, 2003 6:51 PM
> Subject: Re: rear suspention
>
>
> > Hi Dave . My friend Bill came up with this suspension idea in the 60's .
> > Later NASCAR "copied" it . If a hypothetical rear had an input torque of
> 500
> > ' # and 3:1 ratio (1500 ' # output) it would take 250 # downward on a 6 '
> > lever arm to resist pinion lift . If the lever was 2 ' off center (to the
> > right) the 250# downward push times the 2 ' off set cancels the effect of
> > drive shaft twist (equal tire loading without undesired roll stiffness) .
> > ----- Original Message -----
> > From: "Dave Dahlgren" <ddahlgren@snet.net>
> > To: "John Burk" <joyseydevil@comcast.net>
> > Cc: <land-speed@autox.team.net>
> > Sent: Tuesday, October 14, 2003 4:34 AM
> > Subject: Re: rear suspention
> >
> >
> > > This sounds like a NASCAR modified rear suspension..
> > > How does the math work for the offset what are the units used give an
> > example
> > > please.
> > > Dave Dahlgren
> > >
> > >
> > >
> > > >
> > > > A simpler
> > > > fix
> > > > ; use a single torque arm a little to the right of the drive shaft
> .The
> > > > offset
> > > > needs to be the torque arm length divided by the ring & pinion ratio .
> > With
> > > > this design the torque arm exactly cancels the undesirable effects of
> > drive
> > > > shaft torque , wheel loading stays equal under acceleration or
> > deceleration
> > > > and roll stiffness can be as desired . The only drawback is wheel
> > loading
> > > > is
> > > > unequal under braking . Only the torque arm should resist axel torque
> > > > (single
> > > > link on each side) and only the single links should locate the rear
> > front to
> > > > rear . The front of the torque arm needs to be free front to rear
> (slot
> > or
> > > > vertical link) so there is no torque arm arc to fight with the side
> link
> > > > arcs
> > > > . Hope my description is clear enough . John
>
"Sparky"
Lakester 2211
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