Originally Posted by
howardcano
It would be very informative if you showed, given zero toe setting, how much lock you get on the outside tire when the inside is at some reference angle (let's say 30 degrees), and how the angle of the outside tire varies with different ball positions. That's a bunch of work, but you'll have many people referencing that video until the end of time, and piling even more accolades upon you!
Many thanks for your efforts on all of these videos.
That would actually be simple to do with the right software. Which brings me to another point. The reason you want the rods to sweep back (servo saver more forward of the steering block tie rod mount) is to avoid going over center. What I mean by that is that with straight rods or only slightly swept back, the rods can go from a condition of being swept back, going towards straight as steering is applied to swept forward at full lock. This could cause a weird S curve in a plot of the ackerman. It should never cause reverse ackerman, the geometry of the spindles would make that really tough to achieve but you could still see some undesirable traits.
All that being said, 1/12ths don't seem to be all that super sensitive to it. Yes it does make some difference but I have driven some cars with some whacked steering geometry that were still dialed.