Home built rack and pinion+ coilover build.

Getting zero bump steer means placing the outer tie rod end where ever it needs to be, and it may not wind up in perfect relation to where it needs to be for proper ackerman angle. Ackerman angle is simply the needed difference in angle between the inside tire in a turn and the outside tire in a turn. The sharper the turn combined with a shorter wheel base, the more difference there will be in angles. My race car has zero ackerman, meaning the tires stay dead parallel at all times. Makes it a real bear to push around a corner, or move it around the shop if you need to turn the front wheels. But the scrub you get when you go around a corner is liveable on a track only car, and actually is much better if the car gets sideways. The front tires don't toe out, so the front doesn't "push" and try and make the car switch ends. You wouldn't believe how fast my track car recovers from being out of shape. It snaps right back like it was on rails.
Proper Ackerman is achieved when the lower ball joint, outer tie rod end and the center of the rear axle all line up on a single line. On a front steer car, that puts the needed location out beyond the ball joint. That is why you will never see a front steer car with drum brakes. The tie rod end would be inside the brake drum! The best education on front end geometry that I can think of is in the Mopar Chassis manual. The chapter on plotting bumpsteer really explains it all very well. I hope to gert back out to the shop tomorrow and get some more things done and post some more pics. This is the front of my Racer. How many odd things do you see in this photo?