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Re: [FOT] Sway Bars

To: <fot@autox.team.net>
Subject: Re: [FOT] Sway Bars
From: <triumph_marx@freenet.de>
Date: Wed, 25 Oct 2006 09:22:59 +0200
Jim,

I agree with all you saying but driving a car hard does overuse the tires.
They will give up early and then lap time drops.
So driving without a rear sway bar and a welded diff would be good for
practise winning but not for the race where you have to go 15 or 20 laps the
fast way.
>From my experience, a lot of people are 2-4 laps fast and then the tires give
up. Easy points.

Chris
  ----- Original Message -----
  From: norlinengineering@comcast.net
  To: triumph_marx@freenet.de ; Todd Redmond ; fot@autox.team.net
  Sent: Wednesday, October 25, 2006 4:48 AM
  Subject: Re: [FOT] Sway Bars


  I'm finding this a very interesting conversation, particularily since the
welded rear end has entered the topic.  I currently race a Spitfire with a
welded rear end and no rear sway bar.  The car handles really well.  Years
ago, I raced a C Sports Racer that was a converted formula Ford with a welded
rear end.   Both cars, but the CSR in particular, need to be driven hard in
order to work right.  Driving the CSR at anything less than 95% was difficult
due to terminal understeer.  The only way to drive that car was to pitch it
into the corners and hammer the throttle.  The Spit is similar, but not nearly
as bad.  BTW, the welded rear end is worth about 2 seconds a lap at Portland
in both cars over an open differential.  From my experience, the rear bar on
most cars should be used for fine tuning the overall balance.  I've done a lot
of analysis of spring and sway bar setups on small formula cars, and the rear
bars typically account for a very small percentage of the overall roll
stiffness.

  Jim Norlin

    -------------- Original message --------------
    From: <triumph_marx@freenet.de>

    > The very basic rule is:
    > That a front sway bar induce understeer
    > and a rear sway bar induce oversteer
    >
    > A welded diff has a lot understeer when getting into a corner which I
don't
    > like.
    > So I use that rear bar to have a neutral car at the corner entrance and
an
    > oversteer car when I apply throttle.
    >
    > Chris
    >
    >
    > ----- Original Message -----
    > From: "Todd Redmond"
    > To: ;
    > Sent: Wednesday, October 25, 2006 1:08 AM
    > Subject: Re: [FOT] Sway Bars
    >
    >
    > > << In addition I have a welded diff so the understeer is close to the
edge
    > > to be out of control without the rear sway bar.>> Please explain this
    > >
    > > I have a welded diff. Will I need a rear sway bar? I was going to go
with
    > > a thick front bar, up to 1" and no rear bar. What is the best "Rule of
    > > thumb" for a TR3A?
    > >
    > > Todd Redmond
    > >
    > >
    > > ----- Original Message -----
    > > From:
    > > To:
    > > Sent: Tuesday, October 24, 2006 4:56 PM
    > > Subject: Re: [FOT] Sway Bars
    > >
    > >
    > > >I tried this once and I was found several times in the gravel fields
when
    > > >my car went straight ahead instead of cornering.
    > > > In addition I have a welded diff so the understeer is close to the
edge to
    > > > be out of control without the rear sway bar.
    > > > ;-)
    > > >
    > > > chris
    > > >
    > > >> Several of the
    > > >> TR racers I know used to run an anti-sway bar in the rear, but when
they
    > > >> removed it they liked it much better, and did not put it back on.
    > > >>
    > > >> Bill Dentinger
    > > >
    > > >
    > > > === Help keep Team.Net on the air
    > > > === http://www.team.net/donate.html
    > >
    > >
    > > === Help keep Team.Net on the air
    > > === http://www.team.net/donate.html
    >
    >
    > === Help keep Team.Net on the air
    > === http://www.team.net/donate.html



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