Camber, caster, toe, anti-roll bars, tires, springs......

[NoHachi]

I disagree with the last article on the following points:
Anti roll bars are not the way to go when increasing roll stiffnes. ARB's reduce your cars overall cornering limit by lifting the inside wheel up. Bumping springrates does not have this drawback.
ARB's reduce your suspensions ability to work independently. They are sort of a solid axle conversion set.
Higher springrates do increase ride harshness, but only to a extent. Softer damperrates can make a higher rate spring quite liveable. Bumpdampening is the single most important influence on ride quality.
TTLD, or FRC= front roll couple. Setting FRC at 60% (60/40 TTLD) is a good thing on a RWD car. A high hp car may need up to 70% FRC. Yes it understeers, but it also gets the power down much much earlier. Understeer through FRC settings are more a sign of poor driver controll over the cars rotation then poor suspension design.
On a FWD car you'd want the opposite, so the remarks in the article are correct. Though I disagree that the settings of 60+ on a fwd car are used because of safety. The dynamic balance of the vehicle is never mentioned. A 65% FRC car in a 90 mile an hour corner has an effective 50% dynamic FRC. Its not a question of whether you want oversteer or not. Its where you want it, at 30mph or 90+.

There are a lot more of these small errors in the articles, so i wouldn't use them as a guide. Try to understand the principles behind them and you won't have to carry around a booklet with you to every trackday.