Quote:
Originally Posted by Brianstanford
What about tire wear? Car will be 100% street use for now, no foreseeable track use
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99% of driving miles are run straight ahead, caster doesn't affect the angle of the tire relative to the pavement, so does not affect wear. It DOES improve stability and "return-to-center" after turning.
During turns, caster tilts the outside wheel inboard at top so preventing tire "tuck under" thereby improving tire life.
Extreme caster (8* and more) will cause tire wear and is too much on a wet road with low profile tires.....car will PUSH BAD.
Four degrees is very conservative.
Everybody needs "slalom" when that autonomous Tesla comes out of the side-street.......not just for autocross guys.
VERY simple explanation (there are other factors at work)::::Caster is the difference between shopping cart wheel flutter, and a bicycle when u push it along using the seat only. Caster being the angle of the head stem where the steering bearings are.