The Triumph Dolomite Club - Discussion Forum

The Number One Club for owners of Triumph's range of small saloons from the 1960s and 1970s.
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 Post subject: Double anti-roll bar
PostPosted: Tue Dec 03, 2019 8:38 pm 
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Joined: Sun Dec 08, 2013 8:03 am
Posts: 301
Location: High Wycombe
I’ve read about Geoff’s thicker ARB and heard of these fabled thicker ARBs on early cars.

Has anybody ever installed another ARB to reduce roll without fitting stiffer springs ?

Guess you’d need some kind of block bolted to the subframe, which splits in half to allow ARB installation. A similar block at the strut end too.

Is this idea bonkers ?

Does remind me of the double calliper trick, which used to be quite popular.


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 Post subject: Re: Double anti-roll bar
PostPosted: Wed Dec 04, 2019 8:00 am 
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Joined: Mon Dec 03, 2012 6:04 pm
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Quote:
I’ve read about Geoff’s thicker ARB and heard of these fabled thicker ARBs on early cars.

Has anybody ever installed another ARB to reduce roll without fitting stiffer springs ?

Guess you’d need some kind of block bolted to the subframe, which splits in half to allow ARB installation. A similar block at the strut end too.

Is this idea bonkers ?

Does remind me of the double calliper trick, which used to be quite popular.
In theory it would work, if an anti-roll bar can be modeled like a spring, adding springs in parallel gives you a single spring with the same sprint constant as the spring constant of the two springs added together.

Figuring out the mountings and the geometry is another matter.


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 Post subject: Re: Double anti-roll bar
PostPosted: Sun Dec 08, 2019 4:15 pm 
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Joined: Fri Nov 23, 2007 11:33 pm
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Location: hampshire
I had a double anti roll bar fitted to an Escort Mexico that I owned in the seventies and tried to copy the idea on the Sprint but gave up and made a thicker standard type one from a Sierra bar (what else). At castle Combe it made no difference to lap times but did not crash potholes so much. What happened to it I cannot recall because I junked it as a waste of effort.
Good luck Richard.

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