QUOTE(EJP914 @ Aug 7 2022, 03:57 PM)
Just installed new Bilstein shocks and 100lb springs (914 Rubber) on rear of my car. The rear of the car seems to sit higher than before. I have just about a 5" space from the top of the wheel rim to the fender opening measuring vertically. Car rides on 175/70-15 tires. Don't remember this gap being that large before with the old shocks/springs, but they were the originals from 1973.
Does this 5" space sound normal and will it gradually decrease over time?
Thanks for the thoughts.
EJP914
5 inches (125mm) is a bit high.
i fitted new bilsteins to replace my original boges a couple of years ago.
the boges have a non adjustable fixed perch.
i kept the original springs. (i think they are only about 60 ilbs originally, there were three different grades, suspect mine are softest, but not sure).
we replicated the spring perch ht to the nearest ring notch on the bills.
this resulted in a vert ht from rim to bottom of rear guard of almost 100mm (4 inches).
which was a tiny bit higher than how it had been. i reckon it had been about 75-80mm on the old boge set up maybe a tiny bit more. it was the old arse down front up stock set up so that tends to tip the car a bit too.
i put new bills on the front.
drove it around for a bit to settle suspension.
then adjusted front to get car level all round.
i probably could have dropped it one more notch on bills at rear but i kind of like it where it is as its not too harsh and feels about right at the front. i don't have it set up fierce
its running skinny 165s and street stock.
given you have 100 lb springs i think you are probably a notch or 2 too high with where you have the spring perches set.