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

[Paul L Fisher]

The term bump steer, I believe, means that when you go over a bump, the
suspension compresses (duh) and since the geometry is different than OEM
design, the wheels turn and cause the car to dart one way or the other. As
Don said, a 1"-2" drop should not be that noticeable but if you go much
further than that, bump steer and CV axle angles come into play.


Paul L Fisher

1999 Ford Taurus SHO TR 64K - Stock. Kirk'ed.

Visit my website: http://www.paul-fisher.com
SHOClub Member: http://www.shoclub.com

-----Original Message-----
From: shotimes-admin@autox.team.net [mailto:shotimes-admin@autox.team.net]
On Behalf Of Carl Prochilo
Sent: Friday, April 16, 2004 11:41 AM
To: Donald Mallinson
Cc: techsho@topica.com; shotimes@autox.team.net
Subject: Re: [Shotimes] Re: Adjusting Steering Rack height to compensate for
loweredsuspension

.

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?
-- 
Cheers,
Carl Prochilo
1992 Ultra Red Crimson

Donald Mallinson said:
> Carl,
>
> Raising the steering rack is only done on cars that are
> lowered significantly.
>
> The reason is that once you lower the car, the angle of the
> steering arms is changed and the car can "bump steer" more
> than when at the stock angle.  By raising up the rack, you
> put the arms more centered in their travel.
>
> This is mostly for those that used the SHO Shop linear
> springs or others that lowered about 2".  The Eibachs don't
> lower enough to cause much bump steer.
>
> If the bump steer doesn't bother you, it isn't necessary.
>
> Don Mallinson
>
> Carl Prochilo wrote:
>> ===========================================================
>> Your opinion counts! Were conducting a survey for a
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>> .
>>
>> Kirk's latest post on SF now has me wanting to revisit a topic
>> I've
>> read about a while back.  Specifically I've heard that people use
>> washers raise the height of the steering rack(?).
>>
>> Obviously from my question I do not perceive any problems with my
>> current setup.  However, I would like to know again why people do
>> this, what the expected benefit is, and the procedure to do it.
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