Fastrax review and alignment questions for the pros.
The diameter of the rotational plane does not effect the toe angle because you are measuring the difference between the front and the rear. 0 is 0 no matter how far it is projected. It can be measured in degrees or inches, just go into the preferences and pick which one you want. Hell you can measure it in millimeters if you want. The computer is measuring it in degrees and converting it to inches of mm for us.
Degrees are measured from the center-line of the car and can be more accurate as it eliminated part of the inch measuring equation plus now we are measuring individual toe instead of total toe.
If you can say, based on the simple tools I have, what are you thoughts on finding a center point of the car .
For example, the seam of the K frame and drop a plumb bob to the floor.
Or, more conveniently and accurately perhaps, use the frame rails near the tires with a plumb bob to the floor and split the difference.
Using that as a reference couldn't I , in theory, measure individual toe?
Factory give me 1/8 inch total"?
So each would be 1/16 in.
And then confirm total.
Seems like that might be a more accurate way to do it with little more trouble.
On a separate point, I read somewhere that the tie rods need adjusted to be equal in length to avoid bump steer.
If this is true (seem logical based on my understanding of front end geometry) this is an important item and should it be mentioned more.
