I find that in practice, with springs (even though I presume they are meant to be progressive) that the first 1 CM of travel approx. is very soft so the spacer will likely not raise the ride height much. So a thin-ish spacer of say 1 CM would at a guess only raise the ride height a few MM.
It's a strange thing, but I've noticed it many times with a variety of springs.
Helper springs themselves take up a fair bit of height, so I guess the solution really requires shorter main springs too. All gets expensive very quickly as usual.
So what do you think your 1 inch spacer does to your ride height, where the spring is pretty well loaded? It has the exact same effect as moving the spring collar 1 inch down and will raise your car... (and by about 1.4 inch due to the wishbone lever action)
What you would need is fabricate a spacer that has say 1 inch length at max droop and almost no length when the spring is fully loaded. Hey presto; those variable length spacers exist and are called helper/tender springs!
Yea, you're right, I'm not sure what I was thinking.
Edited by Nev, 06 January 2017 - 06:18 PM.