On
Sep 17, 2014 Mieser said:
For link calcs it is best to use SPRUNG CoG. With the way you measured you have an excellent number for overall vehicle CoG. I think the newest version of the 4-link calculator helps you calculate the sprung version with the front and rear unsprung mass. I think all your really worried about for link calcs is sprung cog height also.
On your link design
-Getting the upper links that close together will be difficult.
-Pinion change with the shorter upper links may be difficult to manage with the shorter wheelbase and rear driveshaft.
-A good goal is to try and get the suspension to cycle between 0% AS on full compression and 100% on full droop. Its harder than it sounds.
-I would try and built in a little adjustment to the frame side upper mounts that would allow you to set the AS between 40-75% or so.
-The length of the instant center is good. 2x wheelbase seems to be a decent number to shoot for.
-Height of instant center is ok, a little lower might be better.
-Roll understeer is good, don't go much more though. It will handle a little better with slight roll understeer on the road.
-Try and hide the lower links. Making them so long the mounting points snag on the belly sucks.
-10" of vertical separation is good but you don't HAVE to have that much if your going to have good quality joints.
