# Hollow or solid? v.swaybars

**URL:** <https://forums.speedlife.net/t/hollow-or-solid-v-swaybars/18928>\
**Category:** NYSpeed Automotive\
**Created:** [October 17, 2006, 1:21pm UTC](https://forums.speedlife.net/t/hollow-or-solid-v-swaybars/18928 "2006-10-17T13:21:16Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![LAFENGAS](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/lafengas/32/7573_2.png) [@LAFENGAS](https://forums.speedlife.net/u/LAFENGAS)\
**Post date:** [October 17, 2006, 1:53pm UTC](https://forums.speedlife.net/t/hollow-or-solid-v-swaybars/18928/7 "2006-10-17T13:53:06Z")

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> [@newman](#):
>
> you sure about that… torsional stiffness is typically a constant. 0,0 intercept… So you can make a solid bar behave in exactly the same manner as a hollow bar… it’s just a matter of cross section design… But you aren’t going to get it to behave as anything other than a linear spring…

i mentioned weight as being the constant.

EDIT:  
the weight of a solid shaft …you can’t change the diameter. for a hollow tube, you can design larger diameter with a thinner wall or a smaller diameter with a thick wall and everywhere in between.

EDIT: EDIT:  
If the wall thickness is too thin to be stable, the tubing would collapse prematurely. obvious.

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