I'm at college studying to become a car mechanic, one of my lecturers said that if you lower a car by 60mm as one of the oher students has, it will mean you have to reset the castor and camber and some other suff.
Earlier I was reading www.Carbibles.com and came across this
What if I get shorter springs to lower the car? Will I need to adjust my caster and camber angles?
Generally the answer would be no. Most cars have a good 10-13cm (4-5 inches) movement in their suspension from the factory. As most of the lowering springs you can buy only lower by 2-7cm (1-3 inches), your suspension should still be well within it's designed operating limits. Therefore, caster and camber angles shouldn't need looking at.
Who is right?