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#1
13th November 2009, 07:14 PM
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Having been out for a "little spin"
 in Spuds Roadster today,( decided we needed half hour of fun after a long week/weeks  ) & i personally don,t think an anti roll bar is needed, maybe other manufactured cars need them to hide a design set up problem or overkill as a sales ploy, whereas the Roadster is a well balanced/handling car without the need.just my opinion of course  cheers andy Last edited by HandyAndy : 13th November 2009 at 07:29 PM. Reason: granma... i mean gramma grammer, you know what i mean 
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#2
13th November 2009, 08:27 PM
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hey another new person, i thought anti-roll bars on normal cars were mainly to stop body roll and although ive never been in a roadster there isnt much of a body to roll as its low ? just my thinking.
cheers sean
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#4
13th November 2009, 08:38 PM
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Cherno...
i,ve just been reading your blog pages ( well looking at the photos/video,s as can,t read French  ), you have a very nice car contact forum member "Slimtater" to get your forum badge for a completed car. well done mate cheers andy
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#5
13th November 2009, 08:51 PM
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An anti roll bar helps the handling by allowing softer damper and spring rates while indeed reducing roll. Roll bars can be adjustable by varying where you attach the uplinks relative to the wishbones and the forward or rear link bars i.e the bits of the roll bar that point back or forward relative to the part that runs across the car.
On my (not a haynes) car the sierra anti roll bar forms part of the lower wishbone with the standard track control arm, in this configuration it is indeed to stiff, even the thinnest of fords anti roll bars is to thick. So i milled the bar across half of its width to half thickness and it works well. Using standard steel rod will probably not work as it is not sprung and would just twist and settle over time.
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#6
16th November 2009, 12:55 PM
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By adding an anti roll bar you are increasing the overall spring stiffness at that end of the car whilst this does allow a reduction in coil spring to acheive the same overall spring stiffness value and therefore increase comfort levels. By introducing a roll bar front or rear you can effect the amount of understeer or oversteer the car suffers from. On a well balanced car this is can be seen as uneccessary. let us know what happens
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#7
16th November 2009, 06:00 PM
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Have a look at page 159 in the book and it gives pro's and con's to using anti roll bars and the effect on steering and under/oversteer along with damper,tyre settings etc.
I must agree with HandyAndy after being in and now having driven Spud's Roadster it handles like a kart (all credit to the builder and attention to detail and setup,absolutely magic! If you want Roadster parts these are the boys.) Experimentation is the only way to find out unless someone has the software to do it and it will be interesting to see the outcome. And it is the nut behind the wheel, not the nut holding it on that is the cause of all the problems  Good luck.
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