What is TOE-in TOE-out

Toe is the amount of angle your wheels point inward (toe in) or outward (toe out) when looking at the wheels straight down with the front of the car at the top of the picture. A simpler explanation is how you stand on the ground. If you have both of your feet even and pointing forward you have zero toe. If you anlgle your feet to where your toes point outward like a pigeon, you have toe out. Now you know where the phrase came from too

These adjustments are slight but do have noticable changes. Typically, most cars run 1/16″ – 1/8″ toe out with production cars being much closer to the smaller side. With slight toe out it helps you initiate the corner entry better though straight line stability is kind of weird and is subject to personal preference. Toe in will give you great straight line stability at speed but sucks in the corners.

Camber is the angle of lean from the top of the wheel to the bottom. If the top leans in from the bottom, you have negative camber. If the top leans out, you have positive camber. Camber is good for cornering and to give a better contact patch when in a corner. The best way to measure this for performance at the track is tire temperatures by measuring the inside, middle and outside of the tread. For example, when you make a left hand turn, your suspension dives to the right and loads the right front tire. If you drove hard and had zero (neutral camber), not only would the car feel bad in the corner, the outside edge of the tire would overheat reducing traction and causing uneven wear. Now if you give the car a little negative camber (top of tire leaning in), the transferred weight/load is more even across the tire and everything starts coming together. The temps and wear are even and the handling through traction in the corner improves dramatically.

Credit  : fraz (AlfaBB)