I designed and built heavy 3/4" dia, front and rear panard bars for my Panel Delivery, with the large side surface area, I know I will have a handling problem in a cross wind. I mounted them as far out board as possible and firmly to the opposite frame. I believe they will cancel out uneven loading of the shackles in certain conditions. If one would study what the Allard racers did in the early 50"s to improve corner handling, you would see what I am refering to, the Allard's used 46-48 Ford running gear.
pannard bar
- Thread starter jerry shook
- Start date
Richard in Anaheim CA
Well-known member
I have run the AC&R bars front and rear for over 50,000 miles in my 28 tudor. My theory is the shackle "swing" is what is minimized by the bars.
Yes, there is some movement of the wheels side to side as the wheels move up and down and the bars allow an arc movment instead of straight up and down. but not near what you have without the bars.
You have probably all had the experience of holding the car straight against a very strong side wind. Drive under a bridge and the car darts the other direction, you correct just as the front of the car exits the underpass and the car darts the other way, you correct and then the rear of the car exits-------. You get the picture. It's worse than an a VW Bus and extremely dangerous.
Shocks dampen up and down movement. The bars, call them what you want, limit straight back and forth movement. Neither is 100% efficient, both do their job to the extent of their design.
See you on the road in 2011.
Have a very Merry Christmas
Richard
Anaheim CA
Yes, there is some movement of the wheels side to side as the wheels move up and down and the bars allow an arc movment instead of straight up and down. but not near what you have without the bars.
You have probably all had the experience of holding the car straight against a very strong side wind. Drive under a bridge and the car darts the other direction, you correct just as the front of the car exits the underpass and the car darts the other way, you correct and then the rear of the car exits-------. You get the picture. It's worse than an a VW Bus and extremely dangerous.
Shocks dampen up and down movement. The bars, call them what you want, limit straight back and forth movement. Neither is 100% efficient, both do their job to the extent of their design.
See you on the road in 2011.
Have a very Merry Christmas
Richard
Anaheim CA
gweilbaker
Well-known member
Whoops, wrong term, I meant to state Death Wobble instead of bump steer. DW is the uncontrollable shaking of the front end with steering wheel almost being ripped from thy hands. A worn radius ball also is suspect of same behavior. To answer the OP question, I have driven a few cars with PH bars but they were on the cars to fix suspension instabilities. The bars were removed when the worn components replaced. I would use a PHB if I were to drive competitively which in Chiwaukee is everytime you hit the pavement!
GW
GW