Aled_g
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 posted on 12/10/09 at 08:30 PM |
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Convert De dion to IRS Suspension
hi guys, im looking to convert a de dion suspension setup on my locost to an independant rear suspension setup on the rear, but not sure which one
would give the best performance and cost, considering camber, stability, etc. Please see pic for more details
 
Rescued attachment 07102009092.jpg
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MkII
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| posted on 12/10/09 at 08:37 PM |
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caterham succesfully used a dedion set up for years, why do you want to go to all the trouble of changing yours. m.
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Davey D
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| posted on 12/10/09 at 09:11 PM |
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I really wouldnt bother changing it. It is a lot of messing around for little benefit
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mangogrooveworkshop
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| posted on 12/10/09 at 09:32 PM |
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Mines dedion and its next to no differance in handling from the irs. Ocassionally it gets upset by an uneven surface but it sorts its selfout.
Great for hard starts and very predictable when it steps out.
Rather finish the car and drive it than make sweeping changes putting you back years.
By the way we have three cars in the gang 1 indy and 2 dedions one of which is a caterham,other mk .
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Aled_g
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| posted on 13/10/09 at 09:20 AM |
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IRS Locost Suspension
It's for a project im doing in university, personally i would keep it at de dion setup but have to change it, i was thinking double wishbone or
just one lateral arm at each suspension corner
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nick205
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| posted on 13/10/09 at 10:48 AM |
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If it's for a Uni project, does the car actually have to be finished and put on the road?
If not then I would seriously consider leaving the actual car as it is and making a seperate IRS rear end to demonstrate how it would be made.
This means you have the existing car in tact, ready to complete and put on the road with minimal hassle/cost. It also means you could put the new
seperate IRS rear end allongside the actual car to properly illustrate the differences in suspension set-up.
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britishtrident
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| posted on 13/10/09 at 11:19 AM |
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A single lateral arm is known as a swing axle --- don't even think about using that as a solution, it can be made to work under a given set of
conditions but on the rear it is much more likely to result in a car that transitions from gentle understeer to extreme over steer in the blink of
an eye.
De Dion is the best setup for a car of this layout ---- it gives much better camber control than an independent system.
[Edited on 13/10/09 by britishtrident]
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Joe T
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| posted on 7/11/09 at 10:38 PM |
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Stick with the De dion, so much of the rear end would have to be changed to little or no advantage.
Joe T
[Edited on 7/11/09 by Joe T]
Cheers
Joe T
Costin Roadster Project
Work in progress
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