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Originally Posted by CliffBeer The CAVs, when set at the proper ride height and with the correct dimension tires, are stable and don't exhibit excessive bump steer. |
I do not agree with this statement. With small diameter front tires and 5" of ride height the bump steer will be better; however, with the original front end equipment the bump steer is non-zero for most any ride height. With a lowered car (e.g. 4.25" ride height and 245/45-17=25.6" tires) the bump steer can be .2" at 2" suspension travel. To get close to zero bump steer you want the inboard tie rod pivots to be near the line drawn between the inboard upper and lower pivots. In other words when viewed from the front of the car, if you draw a line between the upper suspension inboard pivots and the lower suspension inboard pivots the inboard tie rod should lie along this line. This is not 100% true but it will get you close. Optimal pivot point is slightly outboard of this point. You still need to adjust the angle of the tie rod relative to the angle of the suspension arms (thus the outboard shims). The original CAV rack pivots are inside of this "line" resulting in toe change with suspension movement. If you don't believe me just measure the bump steer and report the results.