Panhard bar question

[JeepFreak21]

Regarding the front panhard... for the most part, the length and angle are set by the draglink and any space constraints. Can somebody please remind me how the height of the mounts effects the roll axis and all of that?
Thanks,
Billy

 

[Goatman]

The roll axis is the height of the panhard mount, don't remember if it's the frame end or axle end, but it doesn't matter much. Higher roll axis adds stabilty to an offroad rig, so it has a better feel/less roll in off camber situations and in sharp turns. However, it also makes actual rollover less predictable as the rig feels more stable right up until the roll point.

By contrast, race cars build with low center of gravity and low roll center, the low roll center gives the driver more feel for what the car is doing.

 

[Weasel]

Roll center is located in the center on the panhard bar from the side view. Roll axis connect front and rear roll centers.

 

[Weasel]

The roll axis is the height of the panhard mount, don't remember if it's the frame end or axle end, but it doesn't matter much. Higher roll axis adds stabilty to an offroad rig, so it has a better feel/less roll in off camber situations and in sharp turns. However, it also makes actual rollover less predictable as the rig feels more stable right up until the roll point.

By contrast, race cars build with low center of gravity and low roll center, the low roll center gives the driver more feel for what the car is doing.

Center of the panhard bar actually. Rest is right on.

I think race cars can have higher roll centers as well. An added benefit is that with low roll centers you will use travel in roll rather then just in terrain changes.