Coilover Adjustment/Damping

[Carlos Fandango]

Thinking of purchasing some coilovers which I'll use on the road but want some with some adjustment for track work. The units that are on the market, in which way are they adjustable, the damper as a hole, for bump, rebound......what do I want/need and why?

 

[Phil @ P5]

Adjust the nut behind the wheel .....

 

[Carlos Fandango]

Come on, I know it's a rather in depth question.....but someone must be able to enlighten me?