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Old 08-09-2015, 06:40 PM   #12
Hoosier Daddy
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Quote:
Originally Posted by PST View Post


Here's a plot showing roll gradient (°/G) over three laps.

Green- Stock springs, stock bars
Red- 400 lb springs, stock bars
Blue- 400 lb springs, Whiteline Bars (3X & 2X stiffer than OEM)

This shows the effectiveness of springs and bars fairly well. Increasing spring rate by a factor of 2.5 or so dropped the roll gradient by what, 30%? If your springs were only 30% stiffer, your roll gradient would hardly be affected.

Considering you're looking at this from a street perspective, I think you're going about it backwards. Bars will allow you to corner flat while maintaining compliance over bumps, whereas stiffer springs all around will handle everything like a skateboard.
Unfortunately, all your plots show is less body roll with stiffer springs and then even less with stiffer springs and stiffer bars. That doesn't say anything about actual handling. If body roll is really bad then even stiffer springs/bars is better... Although, your last point is more than valid, mirroring my own comment.
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