Ronin
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| posted on 24/3/05 at 04:40 PM |
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Chassis any good?
I'm thinking about buying this
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&a
mp;category=36631&item=4537268875&rd=1
Anyone think it would be any good ? If it is an early Dax does anybody know if I can still use Cortina uprights?
Thanks, Alex
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clbarclay
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| posted on 24/3/05 at 04:50 PM |
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There was a topic about this chassis not long ago.
http://www.locostbuilders.co.uk/viewthread.php?tid=23970
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JonBowden
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| posted on 24/3/05 at 05:04 PM |
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If you look carefuly at the chassis, you can see that it is somewhat different from a locost chassis.
The top side rails are different and the back end near where the suspension trailing arms attach is different.
These differences are not necessarily bad but may cause you some problems paneling the chassis.
Look carefully at the pictures
Jon
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Ronin
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| posted on 24/3/05 at 05:14 PM |
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Cheers gents. 
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Liam
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| posted on 24/3/05 at 05:21 PM |
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Definately a Dax I'd say. Has all the Dax distinguishing features: sides taper inwards all the way instead of parallel seating area sides then
kinking in afterwards; chassis sides raise upwards towards the front of the chassis instead of being level; has the odd inwards step at the trainling
arm brackets. All these features are on modern Dax chassis and nobody else does it this way. Looks like modern dax bodywork could fit too - but
worth checking with them.
I'd say the suspension looks designed for cortina uprights. On one of the views it looks like there is hardly any KPI which suggests cortina
and definately not sierra. Also looks like the wishbones were put on wrong in the photo as there is major positive caster (or is it negative - the
wrong way anyway).
Interesting chassis, and a good excuse to use Dax arches and nosecone! Mmmmm.
Liam
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britishtrident
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| posted on 24/3/05 at 05:28 PM |
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It looks a great litle chassis
Wishbone are just sitting against the frame, from looking at this chassis and other pictures of Mohr/Dax chassis it looks like the lower wishbones
mount differently to the Westie/locost way.The lower wishbones mount directly on to FU1 & FU2 --- this should reduce bump steer but may mean a
standard locost nose won't fit because it might be too narrow at the bottom. but a Dax nose should.
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clbarclay
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| posted on 24/3/05 at 05:29 PM |
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Haven't a clue what castor DAX use, but I had a feeling that some manufacturers have used positive. Maby on some mercs.
[Edited on 24/3/05 by clbarclay]
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Liam
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| posted on 24/3/05 at 05:31 PM |
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For comparison... (note this is an irs Dax Quadra)
Liam
 
Rescued attachment 20.JPG
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Liam
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| posted on 24/3/05 at 05:42 PM |
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quote:
Originally posted by clbarclay
Haven't a clue what castor DAX use, but I had a feeling that some manufacturers have used positive. Maby on some mercs.
[Edited on 24/3/05 by clbarclay]
Uuuur! Wouldn't caster (and therefore the trail assuming uprights like cortina/sierra) being the other way around be terrible!? Like inherent
instability. Anti-self-centering?? (imagine turning the castors 180 degrees on your sainsbury's trolley and expecting then to stay pointed
that way). Probably not what you'd want on your seven! Correct trail (and therefore self centering) could be achieved with positive caster
with 'funny' uprights, but now I'm getting way OT and anoraky. Nah I imagine the top bone that has been 'installed' for
the photo is up-side-down or the wrong one. No biggy.
BT - the main problem with a standard caterham copy nosecone would be the height of the top rails. Would need to chop the side of the nose a bit.
Dax nose should go on fine (he says).
Liam
[Edited on 24/3/05 by Liam]
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Liam
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| posted on 24/3/05 at 05:50 PM |
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quote:
Originally posted by Liam
I'd say the suspension looks designed for cortina uprights.
Having said that them transit tre's aren't screwed in very far and I could well be mistaken anyway. But it will be sierra or cortina, so,
see what fits!
Or ask Dax.
Liam
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Ronin
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| posted on 24/3/05 at 07:12 PM |
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Thanks everyone. Looks like I might be putting in a bid.
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Mark18
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| posted on 24/3/05 at 07:18 PM |
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He might just have the wishbones on upside down. If it's a Dax, then you're unlikely to have handling problems.
Mark
"I don't know what I may seem to the world. But as to myself I seem to have been only like a boy playing on the seashore and diverting myself
now and then finding a smoother pebble or a prettier shell than the ordinary, whilst the great ocean of truth lay all undiscovered before me." -
Isaac Newton
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