novacaine
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| posted on 29/1/08 at 04:59 PM |
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How does a Dedion axle work?
Ive been having a browse around the site for the past hour or so trying to work out how a dedion axle works...
ok so take for example the gts Dedion axle, does the sierra diff attack to the dedion axle then it can just be treated like a live axle or is the diff
mounted to the chassis then the dedion goes around the diff but is not attached to it?
sorry if its been covered before i just cant find any relavant threads
cheers !
And you run and you run to catch up with the sun but its sinking, Racing around to come up behind you again, the sun is the same in a relative way but
your older, shorter of breath and one day closer to death
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Alan B
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| posted on 29/1/08 at 05:02 PM |
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The diff is solid mounted to the chassis, and the De Dion tube basically holds the wheels together. So really it's a lot like a live axle, but
with the diff taken out of unsprung weight.
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novacaine
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| posted on 29/1/08 at 05:06 PM |
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ahh right cheers!
Clever, simplicity of live axle without the weight
thanks
And you run and you run to catch up with the sun but its sinking, Racing around to come up behind you again, the sun is the same in a relative way but
your older, shorter of breath and one day closer to death
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jkarran
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| posted on 29/1/08 at 05:12 PM |
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quote:
Originally posted by Alan B
The diff is solid mounted to the chassis, and the De Dion tube basically holds the wheels together. So really it's a lot like a live axle, but
with the diff taken out of unsprung weight.
And the prop shaft torque removed from the 'axel' presumably?
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onzarob
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| posted on 29/1/08 at 05:18 PM |
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This is the best explanation i have found, about 3/4 the way down the page.
http://www.carbibles.com/suspension_bible.html
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novacaine
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| posted on 29/1/08 at 05:36 PM |
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quote:
Originally posted by onzarob
This is the best explanation i have found, about 3/4 the way down the page.
http://www.carbibles.com/suspension_bible.html
that is pretty damn good, thanks for the link
And you run and you run to catch up with the sun but its sinking, Racing around to come up behind you again, the sun is the same in a relative way but
your older, shorter of breath and one day closer to death
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dhutch
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| posted on 29/1/08 at 06:05 PM |
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Yeah, sounds about right.
- Rightly or wrongly I was first introduced to it as 'a way to use a diff deisgned for independate rear suspention in a car designed for a live
rear axle' .
- But yes, basically its bastardised halfway house between live rear and fully independant, that actaully seams to work quite well.
Daniel
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bracey
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| posted on 29/1/08 at 06:19 PM |
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got it on rear of indy works great good traction
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mcerd1
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| posted on 29/1/08 at 07:14 PM |
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quote:
Originally posted by jkarran
And the prop shaft torque removed from the 'axel' presumably?
the torque reaction will be through the chassis like an IRS
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NS Dev
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| posted on 30/1/08 at 07:16 PM |
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de-dion is a great setup, probably pretty much the ultimate seven setup really.
Combines the light CAR weight of a live axled car with the light UNSPRUNG weight of an IRS car, and maintains good rear end traction due to excellent
camber control.
(Note the caps above, irs cars tend to be heavier in broad terms due to the chassis having to "reach further" and live axle cars lighter
due to simpler chassis i.e. only panhard rod or wl behind the axle line.
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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procomp
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| posted on 1/2/08 at 09:44 AM |
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Hi although a dedion setup is usually 20-25kg heavier than a live axle setup overall. 
Cheers Matt
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