quite interesting, thanks for the info. do you have any more
information on this "Z"-bar?
--- RON E KRANTZ <RKRANTZ@prodigy.net> wrote:
> I have been racing spitfires since the early 70's in the
> CenDiv of SCCA.
> Back then when the rules were much like autox today, I used a
> rear swaybar
> in the shape of a "Z" with a stock rear spring with two leafs
> removed and
> the ends rolled to get more rear camber. The real reason you
> get oversteer
> in a spit is due to the swing axles which generates huge
> jacking forces.
> This is what takes the car from understeer to oversteer in the
> middle of a
> corner very quickly. What I used was a 1" bar up front and
> 1/2" Z-bar in
> the rear, solid bushings everywhere, and shortened spit or GT6
> springs to
> lower and stiffen the spring rates. The front bar actually
> controls the
> body roll and the rear bar adds a little to the inside front
> wheel in a
> corner - keeping it from lifting off the ground.
> Depending on the chassis stiffness (rollcage vs. single roll
> hoop). If the
> chassis has not been stiffened(the top of all 4 shocks tied
> together through
> the roll cage) use a camber compensator. If the chassis is
> stiff use
> swaybars.
> Hard fact is with swing axles you get jacking forces and
> ultimately
> oversteer. Both of the above modifications only delays or
> raises the point
> at which it will occur.
> Ron - ReK Racing
> ----- Original Message -----
> From: nikolai jaremka <njaremka@yahoo.com>
> To: <Spitfires@autox.team.net>
> Sent: Monday, November 08, 1999 11:55 AM
> Subject: Re: Camber compensator or rear sway bar.
>
>
> >
> >
> > well, i don't auto-x, but i do have a rear sway bar. i do
> know
> > that it was a little difficult to attach it the way i wanted
> it,
> > but it does signifigantly reduce body roll, and it looks
> like it
> > performs the same functions as joe's camber compensator.
> other
> > things to note: stock front suspension setup and poly
> bushings
> > all around, other than that, stock suspension. the most
> notable
> > change i noticed was a greater tendancy towards oversteer.
> >
> >
> > --- "Mostrom, Paul" <Mostrom.Paul@principal.com> wrote:
> > >
> > > Listers,
> > >
> > > I am looking to modify the rear suspension of my '77 1500
> to
> > > improve it's
> > > handling for auto-x. I would like some help or sugestions
> > > from those racers
> > > out there on whether it would help the roll/oversteer that
> I
> > > experience while
> > > powering through a curve to put a rear sway bar on my Spit
> or
> > > if a camber
> > > compensator would be a better choice.
> > >
> > > Or have I missed the point of the camber compensator all
> > > together?
> > >
> > > So far the modifications I have done to the suspension
> are:
> > >
> > > poly bushings
> > > rear air shocks (more to level the car than to stiffen the
> > > suspension)
> > > realignment to -3/4 camber on front
> > >
> > > Any other sugestions would be very welcome.
> > >
> > > Thanks,
> > > Paul Mostrom
> > > '77 Spitfire 1500
> > >
> > >
> > > 'Give a man a fish and you feed him for a day. Teach him
> to
> > > use the internet
> > > and he won't bother you for weeks!'
> > >
> >
> >
> > =====
> > nikolai jaremka
> > 72 spitfire mkIV
> > east aurora, new york
> >
>
>
=====
nikolai jaremka
72 spitfire mkIV
east aurora, new york
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