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watts linkage mounting points
Cousin Cleotis - 7/6/05 at 07:05 PM

should the two outer mounting points of a watts linkage mount on the chassis or axle?

Thanks, Paul

Neville Jones - 7/6/05 at 07:14 PM

I've read that it saves unsprung weight if the outers are on the axle and the bellcrank is on the chassis. I think this is how the early Ford rally cars were configured.

britishtrident - 8/6/05 at 07:45 AM

Doing it one way the roll centre is constant wrt ground level the other way it constant wrt the cars cg -- dosen't make much difference all depends on how easy it to provide decent stiff mountings.

My person choice would a horizontal linkage Malllock style with the bell crank under the diff.

[Edited on 8/6/05 by britishtrident]

Volvorsport - 8/6/05 at 11:06 AM

glad to hear somebody else is doing the watts linkage .

mine is using the chassis for the centre mount , axle for the puter points - be warned the lower tube may foul the chassis on droop /roll , so make sure youve got clearance , ill post some pics later in the week , when i have it finished .

britishtrident - 8/6/05 at 03:01 PM

quote:
Originally posted by Volvorsport
glad to hear somebody else is doing the watts linkage .

mine is using the chassis for the centre mount , axle for the puter points - be warned the lower tube may foul the chassis on droop /roll , so make sure youve got clearance , ill post some pics later in the week , when i have it finished .



Yes please sounds interesting :-)

Volvorsport - 9/6/05 at 07:54 PM

links to pics as promised

http://homepage.ntlworld.com/mj.slater2/Phot0036.jpg

http://homepage.ntlworld.com/mj.slater2/Phot0037.jpg

http://homepage.ntlworld.com/mj.slater2/Phot0038.jpg

http://homepage.ntlworld.com/mj.slater2/Phot0039.jpg

apologies if theyre not up to scratch quality wise

Glan Noye - 9/6/05 at 11:06 PM

I was considering a Watts linkage until I came across this http://not2fast.com/chassis/mumford.shtml Now I have too many choices!

Cousin Cleotis - 11/6/05 at 01:21 PM

thanks for the help and the pictures.

Paul

NS Dev - 14/6/05 at 12:16 PM

quote:
Originally posted by Glan Noye
I was considering a Watts linkage until I came across this http://not2fast.com/chassis/mumford.shtml Now I have too many choices!


If you don't mind the extra work and designing it, then the mumford link is a VERY good way of locating a live axle, in fact the principle is the only one that allows easy adjustment of the roll centre height with a live axle.