What is the difference in both?

 

Camber is derived by the postion, or orientation of the top of the tire. When looking at the front (or back of your car) and the top of the wheel is pointed inward, that i said to be negative camber. When the top of the wheel is pointed outward, that is positive camber. I.E / \ <-negative. \ / <--positive.

Caster is the position of the bottom of the wheel in relation to the top of the strut assembly (used as a pivot point) when looking from the side of the car. If the bottom of the wheel is closer to to the front of the car than the pivot point, that is said to be positive caster. Likewise, if the bottom of the wheel is closer to the back of the car in relation to the pivot, that is negative caster.

 

Great page for basic info:

http://www.familycar.com/alignment.htm

This doesn't touch on the performance aspects of camber and caster, so here's a quick list:

More Negative Camber-
Plus:
1) More cornering grip
Minus:
1) Increased tire wear (generally <1.5 degrees will not cause trouble)
2) Decreased straightline stability- car will "wander" on uneven pavement

More Positive Caster-
Plus:
1) Steering self-centers better
2) Better steering feel
Minus:
1) More steering kickback from mid-corner bumps
2) Increased steering effort
3) Increased understeer at higher settings

 

sorry to bring this old topic back up
but, i had a question on caster.

can adjusting the caster, on the top strut mount by moving it one block inwards have anything to do with wearing the tires.

basicall heres what i want to do. i want to have a little more steering response, and ive heard that you can increase caster by moving the top strut mount.

am i right on this, or could someone tell me if i'm thinking wrong about this?

thanks in advace,

attaching picture (crude) as well: