It will then require a change in the tie rod length to be in proper alignment so the radius of the arc will change as well. If the radius arc of the tie rod is longer than stock on a front steer setup then the car will have more toe understeer. If the same scenario was applied to a rear steering design, then the car would exhibit less toe understeer.
Adjusting the tie rod length is necessary to achieve proper alignment, which in turn alters the radius of the arc. If the front steer setup has a longer tie rod arc than standard, the car will exhibit more pronounced toe understeer. In contrast, a rear steering design would display less toe understeer when subjected to the same conditions.