Dorkiphus.net - View Single Post - Suspension question. What does sway bar preload do?
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Old 05-05-2014, 09:11 AM
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Hunter Hunter is offline
 
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Ah, I think I need my TJ high school kid to help me with the math......


Quote:
Originally Posted by Trak Ratt View Post
Some might disagree! ! Don't forget sway bars can effectively increase spring rates

Formula for sway bar stiffness of a solid steel bar

500,000 D^4
K (lbs/in) = --------------------------------------------------
(0.4244 x A^2 x B) + (0.2264 x C^3)


B
---------------------
A | / \ C
| / \

A - Length of end perpendicular to B (torque arm - inches)
B - Length of center section (inches)
C - Length of end (inches)
D - Diameter bar (inches)



Don't overlook things like endlink bushing compliance and motion ratio once you've got a bar-only stiffness but then you kind-a-sort-of sort or hinted at that..

A little heavy on one side? Might shift some weight around with sway bar adjustment. Lots,and lots of info on this on interwebs... some might even be true!
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