Thanks guys!!! That should get us started on making improvements for next years race buggy. . .
. . .now how do I reduce bump steer, i.e. what part of my design do I need to change to affect bump steer. . .talking about unequal length A-arms?
thedirtforum said:In order to accomplish zero bump the tie rod must fall between an imaginary line that runs from the upper ball joint through the lower ball joint and an imaginary line that runs through the upper a-arm pivot and the lower control arm pivot. In addition, the centerline of the tie rod must intersect with the instant center created by the upper a-arm and the lower control arm.
The tie rod must travel on the same arc as the suspension when the car goes through travel. Simply matching lengths and arcs to prevent any unwanted steering of the front tires.
Couldn't you clamp a straight edge to your hub or rotor (something flat/straight), set the hub at ride height and meassure from your straight edge to fixed reference point. Then cycle your suspension and meassure to the same reference point?