Originally Posted by lamchop
I am going to a local welding shop and see if they can do something for me and I will keep you guys updated.
I was interested in the rear sway bar also but the only thing that I saw was a 7/8 bar,I measure my with a ruler am it look very close to that, My car is a 95 SSEI, I am not sure if it comes with a bigger one then the SE model.
Diameter is generally the easiest concept to grasp, as it is somewhat intuitive that a larger diameter bar would have greater torsional rigidity. Torsional (or twisting) motion of the bar is actually governed by the equation:
twist = (2 x torque x length)/(p x diam4 x material modulus)
And since "diameter" is in the denominator, as diameter gets larger, the amount of twist gets smaller. Which, in a nutshell, means that torsional rigidity is a function of the diameter to the fourth power! This is why a very small increase in diameter makes a large increase in torsional rigidity.