Here's the info I have -MARKP wrote:No. Arm length affects the leverage on the bar. The only true measurement would be wheel rate.
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OEM ND Front Sway Bar = 132 lbs/in
MY BAR -
Karcepts ND Front Sway Bar Kit - 0.120" Wall:
Hole 1 = 429 lbs/in
Hole 2 = 478 lbs/in
Hole 3 = 538 lbs/in
Hole 4 = 610 lbs/in
Hole 5 = 695 lbs/in
Kit Weight = 9.5 lbs
Reason I'm asking is that we went down to hole 1 yesterday. Not a lot of ND's doing that, and it really surprised me, but it seems to work.
I guess If I knew my motion ratio, I could calculate my applied spring rate, but is there a reasonable estimate in this case? Hole 1 is a huge increase over stock, and I'm starting to think that anything more than hole 1/2 is going to be too much, given the fact that the Miata has a good suspension and body roll isn't necessarily a bad thing.