andygriffiths Posted November 29, 2001 Share Posted November 29, 2001 How many different types of anti roll bar are there available to fit wide track suspension on a 1992 de-dion Vauxhall HPC? How much are they and who supplies them? Andy G Link to comment Share on other sites More sharing options...
Chelspeed Posted November 30, 2001 Share Posted November 30, 2001 For the rear the standard Caterham made and supplied anti roll bar is adjustable by means of 4 holes on each side (gives 12 diffeent settings). I think this also comes in different diameters which will give a further adjustment. Available from Caterham Parts Dept. For the front Caterham sell a number of different diameter anti roll bars, changing to a different diameter effectively adjusts the bar. Juno Sportscars also sell an in-situ adjustable roll bar, it has a blade at one end which you can rotate, it's soft when flat and hard when vertical. Juno will (or used to) make these in a range of diameters, both solid and tubular, to give an even bigger range. Link to comment Share on other sites More sharing options...
captain chaos Posted December 2, 2001 Share Posted December 2, 2001 I've just bought the Juno one for the front of my wide tracked Vx...£150. See Ad in Low Flying..."Cynics of the World unite". Link to comment Share on other sites More sharing options...
JP Posted December 2, 2001 Share Posted December 2, 2001 Maybe I'm just being a bit dim, but how do 4 holes give rise to twelve settings on the rear ARB (or can it be set assymmetrically)? James. Link to comment Share on other sites More sharing options...
captain chaos Posted December 2, 2001 Share Posted December 2, 2001 Is it 12? I thought there was only 10...question.gif Link to comment Share on other sites More sharing options...
JP Posted December 2, 2001 Share Posted December 2, 2001 10! where do you get 10 from? - Surely it's 5! Link to comment Share on other sites More sharing options...
captain chaos Posted December 2, 2001 Share Posted December 2, 2001 When posting a message like this I get nervous. In the back of my mind I am expecting Arnie, Alex or PeterC to quickly shoot me down in flames and prove me wrong. He who dares wins Rodney.... 4 holes each side...starting with hole 1 on one side 1:1 1:2 1:3 1:4 2:2 2:3 2:4 3:3 3:4 4:4 10 settings Asbestos suit at the ready.... Link to comment Share on other sites More sharing options...
Blatman Posted December 2, 2001 Share Posted December 2, 2001 Can't get my head around not setting the bar evenly on each side. Can some-one please explain the why's and wherefores...confused.gif Link to comment Share on other sites More sharing options...
captain chaos Posted December 2, 2001 Share Posted December 2, 2001 Blatman, I've not done this myself as my ARB is set evenly on 1:1 (softest) but the above was explained to me by an instructor at Oulton last year. Hence my feeling of nervousness making the posting. I just understood it at making fine steps by moving the hole settings one at a time. I never understood why, say, postion 1:3 was not the same as, say, 2:2. Zipping up suit as we speak.... Link to comment Share on other sites More sharing options...
andygriffiths Posted December 2, 2001 Author Share Posted December 2, 2001 Hi captain, have you had chance to try the bar out yet,if so has it made any difference and what thickness is it.All the reports so far seem good,but is the juno bar the only alternative? Andy G smile.gif Link to comment Share on other sites More sharing options...
captain chaos Posted December 2, 2001 Share Posted December 2, 2001 Andy, Nope I'm sorry, the bar is still in it's packaging! It will be in by next weekend, but unfortunately the engine won't be! As far as I know it's the only one available. Link to comment Share on other sites More sharing options...
EFA Posted December 2, 2001 Share Posted December 2, 2001 My vote of correctness goes to Gary, athough prior to rading his post I'd have gone with Graham. Good triv question!! Fat Arn The NOW PROVEN R500 Eaterid=red> See the Lotus Seven Club 4 Counties Area Website hereid=green> Link to comment Share on other sites More sharing options...
captain chaos Posted December 2, 2001 Share Posted December 2, 2001 Phew, that suit was getting a bit warm! Link to comment Share on other sites More sharing options...
Blatman Posted December 2, 2001 Share Posted December 2, 2001 Assuming that the roll bar can be set assymetrically, then CC is short of a few combinations too. Assuming his numbers are "real life" settings, with the numbers on the left referring to the left side of the car, and the numbers on the right to the right, then you are missing: 2.1 3.1 3.2 4.1 4.2 4.3 This is getting worse.......confused.gif Edited by - Blatman on 2 Dec 2001 23:47:41 Link to comment Share on other sites More sharing options...
JP Posted December 2, 2001 Share Posted December 2, 2001 Blatman, I suppose that depends on whether the torsional stiffness is communicated evenly across the bar from wheel to wheel. If it is, then it doesn't matter whether it is 1:4 or 4:1, for example. If I am wrong and it does matter, what is the point of having different anti-roll settings across an axle? James. Link to comment Share on other sites More sharing options...
Alex Wong1697456877 Posted December 2, 2001 Share Posted December 2, 2001 As long as the links are adjusted to give no twist on the ARB at rest, the 2 sides can be set unevenly to result in equal resistance to roll on both sides. Otherwise Juno's front ARB wouldn't work either. Link to comment Share on other sites More sharing options...
captain chaos Posted December 2, 2001 Share Posted December 2, 2001 But, if the bar acts as one setting to the whole suspension isn't 4:1 from the right the same as 1:4 from the left? Link to comment Share on other sites More sharing options...
captain chaos Posted December 2, 2001 Share Posted December 2, 2001 I was writing my reply just as James and Alex were...sorry. Link to comment Share on other sites More sharing options...
Blatman Posted December 2, 2001 Share Posted December 2, 2001 Don't know, that's why I'm here smile.gif How do you measure torsional loading at rest Alexquestion.gif I would have though that if the adjustment holes are even each side, then there will only be tension if different holes are used. But is the force equally distributed, as CC saysquestion.gif If so then it doesn't matter, but if not, you have a car that works better turning one way rather than the other. Link to comment Share on other sites More sharing options...
captain chaos Posted December 3, 2001 Share Posted December 3, 2001 Calling PC, Calling PC.... Link to comment Share on other sites More sharing options...
Alex Wong1697456877 Posted December 3, 2001 Share Posted December 3, 2001 The force will be evenly distributed, but the car will be tilted to one side if there is torsional force through the ARB at rest. If the car is on a flat surface and the link is adjusted to go into the ARB without having to bend the ARB, then it's gone in at zero torsional force. This could be complete c**p but I think it's right. Link to comment Share on other sites More sharing options...
JP Posted December 3, 2001 Share Posted December 3, 2001 Good point Blatman! Alex? Mmmm need sleep. Will probably be joining in discussion again about 02:00 knowing my luck! James. Link to comment Share on other sites More sharing options...
Alex Wong1697456877 Posted December 3, 2001 Share Posted December 3, 2001 Bet I get bleeped before you do! smile.gif Alex Link to comment Share on other sites More sharing options...
captain chaos Posted December 3, 2001 Share Posted December 3, 2001 That's how I see it Alex. Link to comment Share on other sites More sharing options...
JP Posted December 3, 2001 Share Posted December 3, 2001 As the bar is a cross piece with trailing arms, if the two ends are set differently won't the moment arms at each end be different giving different resistance to roll for a given degree of suspension travel? James. (It's too late for this!) Link to comment Share on other sites More sharing options...
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