Originally Posted by SCtud
don't you need to adjust a lowered car with aftermarket springs to have stiffer springs? thus the blue line is probably higher and steeper sloped to accommodate for the decreased travel? the graph would be right if someone simply cut their springs?
Yup, still a lot of variables missing to make a conclusion about absolute range of suspension travel with aftermarket springs. The increased spring rate of an aftermarket spring is one as well as the fact that most of the afterarket springs are progressive rate springs not linear like the OEM springs so that graph of the spring rate wouldn't be straight like it is shown.