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Anti-Roll bar/sway bar sizes

Started by VLT-025 vbmenu_register("postmenu_1525069", true); · 21 Aug 2007 · 9 replies

Preserved from CalaisTurbo. Original authors and dates are shown; archived members are not current Holdcom accounts.

Does anyone know, or have a link to a site with some tech info to find out the diameter of either or both the Walkinshaw and VL Group a sway bars, front and rear? Or any other HDT cars for that matter. I'm keen to maybe upgrade but would prefer to tread a proven path. Cheers
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Anyone Some original photos have not been recovered yet.
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*crickets chirping*
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I cant help but I would look at 27mm front 16/18mm rear. Prefferably adjustable ones.
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dont know what the Walkinshaw or VL Group A had but 27mm for the front and 20mm for the rear would be good, i found out that whiteline sells 30mm for the front.
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I've got a whiteline 30mm front sway bar on my vl and its very firm, a bit too firm if you ask me but it has no body roll through corners and grips really well.
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Hmmm lots of differing opinions....Kinda why I wanted to know what the factory used. It's tried and proven. I do like the idea of the adjustable ones though.. Plus this PDF chart I have suggest approximately 50% difference in stiffness for a 2mm change...seems like a lot!! As far as the handling balance goes, it's more understeer for a heavier front bar isn't it? so more castor and/or camber should offset this difference right?
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I don't know if I would be too fussed about the factory parts as there are better bits available from the aftermarket now. The Walky is a 20 year old design now... The idea is to choose a manufacturer and buy a matched pair of bars. That way you know the bars are designed to work together and the car will be balanced. Caster & camber affect self centering of the steering and the angle of the tyre contact patch and are not a substitute for poor choice of sway bars. I have Whiteline adjustables on my wagon, 30mm front & 22mm rear. I also used VN struts with the mount on the strut itself, rather than on the bottom arm, as it increases the effectiveness of the bar.
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I wouldnt go too big (stiff) on the rear as you need it a bit softer to get the power down without wheel spin, then if you have a too bigger one on the front it might understeer! 27/18 would be a good start IMO, not over the top. and if they are adjustable, the stiffest setting might be equal to 29/20. Industrial springs in Adelaide make swaybars. http://www.industrialsprings.com.au/antiroll.htm
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What size would stock, N/A VL ones be? I might just get some new D bushes and link pins for mine for now...
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