Panhard bar locations

I have seen what looks like panhard bars running from the front mount of a 4 link to the rear mount on the opposite side. Are these in fact taking the place of the common panhard bar?

 

yes

 

Track bar, used mainly in drag cars.

 

Sounds like a track locater. Pics would be most helpful.

 

Are these then just as effective as the conventional panhard bar? I'm not building a drag car, street car but I would like it to corner well.

 

install a adjustable watts linkage, then u can adjust the roll center, once set roll center will not change, my 2 cents worth

 

Ugh, every time I read up on roll centers and instant centers I get a headache. "I'm a doctor Jim, not a ch***is engineer!". Ch***is engineering is harder, and doctors get paid whether it works or not.

I need a do***entary movie that explains it. 3rd grade level.

 

Paul,
This method is very simple and doesn’t bind . But it is not the best method for body roll in both directions.[ great for drag racing ]

What you have in the above photo is basically an A-arm on the RH side of the rear end.

The suspension movement on this side pivots on an imaginary fulcrum line at the front lower joints, but any body roll is rotational around the RR lower joint.

Effectively it has the Roll centre [and instant centre ] on the RH side of the car which is not a good thing for cars that turn both left and right.

That is why it is preferable to triangulate the lower links inward at the diff centre [ 3 Link ] on non adjustable road racing and street vehicles.

On modern Road Racing 4 link rears the Watts Link is preferred because Roll Centres can be tuned independently to Anti Squat/ Lift etc normally in 4 link rears.