Little bit of a story...
My drag car has had a short 16" panhard bar on it for 6 years now. It has worked great until I started running over 140ish mph. At this point the rear wiggles up and down on the pivot point and causes serious vibration that worsens the faster I go. (shake your fillings loose kind of vibration at 160). I've confirmed this is what the rear is doing with gopro video.
Buddy suggested I try a Diagonal Link to tie both ends of the rear together and hopefully eliminate the problem. So I installed a horiz. link and teh vibration is gone, but the car shakes side to side around 80 and gets worse at 110. To the point it feels dangerous.
So I installed the panhard bar again, With the intention of removing the diagonal link. Before removing the link, I tested the suspension travel with both installed. I see nothing binding rear end raises and lowers just fine. Is there any harm in running both? A brief ride seemed fine. I tested it at 120 or so and got no side to side movement. No idea if vibration is gone. I'll wait to try more speed at the track, don't' feel comfortable going 160 on streets around me.
Hopefully this pic helps.
Here is a video of the side to side movement with just the diag link installed. It would do this at speed. Felt sketchy. Top of the strut mounts would wiggle a ton while the bottom mounts barely moved. With the panhard bar installed it is very solid side to side movement wise.
https://youtu.be/SeCy3k4ADt8
My drag car has had a short 16" panhard bar on it for 6 years now. It has worked great until I started running over 140ish mph. At this point the rear wiggles up and down on the pivot point and causes serious vibration that worsens the faster I go. (shake your fillings loose kind of vibration at 160). I've confirmed this is what the rear is doing with gopro video.
Buddy suggested I try a Diagonal Link to tie both ends of the rear together and hopefully eliminate the problem. So I installed a horiz. link and teh vibration is gone, but the car shakes side to side around 80 and gets worse at 110. To the point it feels dangerous.
So I installed the panhard bar again, With the intention of removing the diagonal link. Before removing the link, I tested the suspension travel with both installed. I see nothing binding rear end raises and lowers just fine. Is there any harm in running both? A brief ride seemed fine. I tested it at 120 or so and got no side to side movement. No idea if vibration is gone. I'll wait to try more speed at the track, don't' feel comfortable going 160 on streets around me.
Hopefully this pic helps.
Here is a video of the side to side movement with just the diag link installed. It would do this at speed. Felt sketchy. Top of the strut mounts would wiggle a ton while the bottom mounts barely moved. With the panhard bar installed it is very solid side to side movement wise.
https://youtu.be/SeCy3k4ADt8