[Shotimes] Re: Adjusting Steering Rack height to compensate for lowere

[Leigh Smith]

Carl
The correct bump-steer adjustment is when both the lower control arm AND the
tie-rod are exactly parallel.
It would be ideal if they were both exactly horizontal, but that rarely
happens on street cars.
McPhearsons usually angle down a little.
Lee

----- Original Message ----- 
From: "Carl Prochilo" <gr8sho@prochilo.myserver.org>
To: "Donald Mallinson" <dmall@mwonline.net>
Cc: <techsho@topica.com>; <shotimes@autox.team.net>
Sent: Friday, April 16, 2004 1:49 PM
Subject: Re: [Shotimes] Re: Adjusting Steering Rack height to compensate for
lowere


> .
>
> Okay, now I got this understood.  I may actually be feeling this
> moderately.  I think the 235s also accentuate the effect.  So, what
> is the procedure to correct the geometry?
>
> Don, forevermore when I stare at a wall I'll be thinking of bump
> steer.  ; )
>
> -- 
> Cheers,
> Carl Prochilo
> 1992 Ultra Red Crimson
>
> Donald Mallinson said:
> > As the name implies...when you hit a bump, the steering
> > wheel will move and tend to steer the car one way or the
> > other.  It is due to the steering arms being at an angle to
> > the centerline of the mounting points.
> >
> > Here is an example.  stand so your side is to a wall.
> >
> > stand so when you hold your arm EXACTLY straight out at a 90
> > degree angle that your fingertips just brush the wall.
> >
> > Then step a couple inches closer to the wall and hold your
> > arm so the fingers just touch the wall.  Your arm will be at
> > an angle now, it can't be straight out.  If you try to raise
> > your arm, your body has to move.  Same thing with the
> > steering gear.
> >
> > When you lower your car the TOE adjustment will be way off.
> >   So you lengthen the steering arms to get toe back in line.
> >   Now when you hit a bump, the longer arm pushes back and
> > can cause the car to go a bit "off line" or move around.
> > To some people it is a bother.
> >
> > Don Mallinson
> >
> > Carl Prochilo wrote:
> >> ===========================================================
> >> Need to find the right school to fit your needs
> >> CollegeInformation.info has already found it. Get educated
> >> on your future  degrees, financial aid and more!
> >> http://click.topica.com/caab8Lbb1dhxAb3hy7Da/ College Info
> >> ===========================================================
> >>
> >>
> >> .
> >>
> >> Maybe I haven't experienced this.  What exactly would I feel?  A
> >> bump when turning the wheel?  There is no doubt the Tokico/Eibachs
> >> lowered the car and altered the geometry.  How do you know how to
> >> make the adjustment so the steering is optimal?  Is there
> >> something
> >> I can measure or inspect?
> > _______________________________________________
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> >
>
>
> -- 
> Cheers,
> Carl Prochilo
> 1992 Ultra Red Crimson
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