P6B rear sway bar - any suggestions

M

mikecoombs

Active Member
Back in the '80s I fitted a KMac rear anti role bar to my P6B. Essentially it was/is a bar running between two plates bolted to the lower control arms. Didn't do anything for the role but made the car very twitchy on rough road. I worked out that because the lower arms essentially meet in the middle of the car they parrallel the road surface ll the time. The body rolls independantly of the lower contol arms. Body roll is controlled by the springs alone. The anti roll bar mounted on the diff end plate is for that unit only, converting any twisting motion into up/down motion to keep the wheels centred on the body ie. reduce rear steer effect. I finally figured out I can mount a bar across the body on the control arm cross member and attach the lever ends to the plates from the other bar, that is to an extension of the lower control arm down near the spring mount.
Effect is to increase the roll resistance of the body without increasing the main spring pressure. Bumps and potholes would increase the load bearing by roughly half of the anti roll effect, so not much as the old bar which just transferred the shock to the other wheel.
Any thoughts on whether it is worthwhile persuing this would be welcome!
 
Hi Mike,

I have KMac springs that I fitted to my Rover in the early 90s. Didn't try the anti roll bar though.

Must admit that I have never given a great deal of thought to what you are suggesting. Chris York who once would frequent here on a daily basis had the greatest knowledge on all things involving suspension, so he would be the ideal person to reply. You could always send him a PM and see what happens.

Ron.
 
Hi Ron,
I might just try that. Car is in Panel Beater no.4 at the moment, so I am just planning at the moment. At the current rate it should be finished late spring. I have a set of Kmac springs but I haven't put them on as I don't want to lose the dirt road handling. As it is once it lets go it's gone for 360 at least, which is pretty nerve wracking when the road has blue gums on both sides.
 
I never did. I've had a farcical-presence for some years.
The P6 page is a bit hit & miss though. I much prefer it on here. Far more information, practical & otherwise.
 
The Rovering Member said:
They're actually advertising for gearbox gurus on there.
Click to expand...

That doesn't surprise me.

The Rovering Member said:
But you'll have to post all your family photos up there too. :wink: :LOL:
Click to expand...

Not a lot of chance of that happening.

I'll rely on you being my spy on the inside.
 
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