been wondering when adjusting basic settings to a car
(ie adjustable damper rates and spring rates)

what Actual effects does it have on the car??
In General i mean, as obviously different cars have different roll bar set-ups ETC..

IE: will making the rear stiffer make the car have less understeer? or more?

things like this.. as i know its probably all too easy to fook up a potentially nice road car, with Chav 'slam to the deck and wind the dampers up' settings. lol

any input appreciated