Reply to "Alignment and Bump Steer"

panteraturboMember

When you change caster you are altering the steering "steering axis inclination" or the axis on which the spindle is turning. Adding caster brings this axis a little closer to parallel with the ground effectively making you feel it more in the steering when the suspension hits a bump. If this axis was completely perpendicular with the ground you would feel no steering movement at all on a bump but the car would be a unstable at speed. I would imagine this could be affected by scrub as well. Hopefully I explained this ok. This is also only relevant if ONE tire was hitting a bump independently of the other as they would cancel each other if say you went straight over a speed bump..

6/9/109:05 AM

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