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Re: Sway bar formula

To: "Linnhoff, Eric" <elinnhoff@smmc.saint-lukes.org>,
Subject: Re: Sway bar formula
From: "Chris Teague" <cteague@home.com>
Date: Thu, 20 Jul 2000 18:12:34 -0700
Eric,

>From "How to make your Car Handle", Ancient Edition:

K=(500000*D^4)/(0.4244*A^2 + 0.2264*C^3)

Where

K=stiffness in in-lbs
A=length of bar arm in fore-aft direction
B=length of straight part of bar
C=length of bar arm along the direction of the arm
D=diameter of the bar

This is for a steel bar.  For a hollow bar, as Kevin said,
calculate the outer diameter, then subtract the inner diameter.
A=C if the bar arms are 90 degrees to the center of the bar.
For most bars that have a little more than 90 degrees, C would
be slightly longer.  I hope that is clear.  I can try to draw a picture
if that is not clear.

Chris Teague
97 M3/4
Still waiting for that TSB on the camber correction bolts....

----- Original Message -----
From: "Linnhoff, Eric" <elinnhoff@smmc.saint-lukes.org>
To: "'autox'" <autox@autox.team.net>
Sent: Thursday, July 20, 2000 8:54 AM
Subject: Sway bar formula


> Okay, since I was asleep the first 20 times, would someone please send me
> the formula for determining sway bar stiffness for both solid and hollow
> sway bars.
>
> I'm assuming that only the "straight" portion of the bar is the "twister
> resistor", right??  For example, the rear sway bar on my Neon goes through
> several bad contortions and bends to clear the rear suspension parts but
> there is a straight center section.
>
> Eric Linnhoff in KC
> 1998 Dodge Neon R/T
> #69 DS    #13 TLS
> eric10mm@qni.com
>
> "I ask sir, who is the militia? It is the whole people...To disarm the
> people, that is the best and most effective way to enslave them..." -
George
> Mason
>
>


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