Re: Torsion Bars

["Gary H." <spigot2039@xxxxxxxxxxx>]

Think of the torsion bar as a coil spring that has been straightened; "a length of spring steel that consistently returns to its original position after being distorted (twisted), as its main, weight-bearing spring. One end of the bar is held in place firmly to the chassis while the other end is attached to a perpendicular lever that attaches to the axle, suspension arm, or spindle. Vertical motion of the axle causes the torsion bar to twist around its axis and is resisted by the bar's torsion resistance. The spring rate of this style of suspension system is determined by the length and diameter of the bar and by the length of the fulcrum points of the arm."
http://www.streetrodderweb.com/tech/0902sr_putting_torsion_bars_on_a_hot_rod/index.html

Do you notice a difference in the stationary end vs. the end that twists?

Thanks,
Gary H.


-----Original Message-----
> Interesting , Gary can u expand on that, what does a" 30 degree left
>handed twist look like" I have a set laying here on the floor and I
>would like to check this out.
>  neal zimmerman, eugne oregon
>
>On 6/29/09, Gary H. < > wrote:
>>
>> Yup, torsion bars only twist in one direction. <"Come on baby lets do the
>> twist!">
>>
>> "Mopar torsion bars are preset at the factory in the direction of use. You
>> can observe this preset by laying the bars down on a flat surface and
>> observing how the bar is twisted. The driver’s side bars will have a 30
>> degree right hand twist. A passenger side bar will have a 30 degree left
>> handed twist. Pre-setting the bars in this manner improves the load carrying
>> capacity in the pre-set direction. But, the load carrying capacity is
>> reduced in the other direction of twist. This is why it is so important to
>> get the bars installed on the correct side of the car."
>> http://www.arengineering.com/articles/tbartango.html
>>
>> Also see
>> http://www.1962to1965mopar.ornocar.org/ml-mopar-torsion-aire-suspension.html
>>
>> Thanks,
>> Gary H.
>>
>> -----Original Message-----
>>
>>>
>>>I don't believe they can go on either side. Has to do with the twist when
>>> they're made.Can someone confirm this?
>>>George


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