3 Link Wishbone Fixes

Aggressive1

Aggressive1

Well-Known Member
Joined
Apr 19, 2005
Location
Myrtle Beach
Ok, trying to correct my suspension geometry using a 4 link calculator. I started out with a 218% antisquat and man it sucked. I am learning how to repair this and made some changes on the 4 link calculator that I know are possible to do with some work. This pic shows antisquat down to 115% which is much better, but I realize still not perfect. But what about my roll center? And other factors?
2744e622439972d.jpg
 
Your Cg seems very low at only 3" above the lower link frame mount? That's great if it really is..

Also, I believe (and this was really confusing), Vehicle Mass is sprung weight only, so unless your rig weighs 6,000lbs, you're a little over. ;) Could be wrong on that, but I think it's sprung only.

IMO, it looks pretty good.. just make sure the AS doesn't rise sharply when the axle droops, but it should be close.
 
Total vehicle mass should be 4,500, so I will have to check on that. Gonna calculate it down to see what effect it makes anyways.
Not sure how to tell if the as will go up or not.

Thanks for the help Rich. I'd really like to save this suspension with some mounting motifications only.
 
Alright Rich, realized I need to control the center of gravity. I have no idea what it really is, but no matter what I put it at it does not seem to effect these numbers. I did change the weights and it actually reduces the A/S some. I had also forgotten to adjust the wheel base which after moving the mounting points and adjusting the upper length, will be 3 inches longer. That also helped the A/S. Here is the updated version:

2744e6714d3911f.jpg
 
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