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Chassis any good?
Ronin - 24/3/05 at 04:40 PM

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


clbarclay - 24/3/05 at 04:50 PM

There was a topic about this chassis not long ago.

http://www.locostbuilders.co.uk/viewthread.php?tid=23970


JonBowden - 24/3/05 at 05:04 PM

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


Ronin - 24/3/05 at 05:14 PM

Cheers gents.


Liam - 24/3/05 at 05:21 PM

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


britishtrident - 24/3/05 at 05:28 PM

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.


clbarclay - 24/3/05 at 05:29 PM

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]


Liam - 24/3/05 at 05:31 PM

For comparison... (note this is an irs Dax Quadra)

Liam Rescued attachment 20.JPG
Rescued attachment 20.JPG


Liam - 24/3/05 at 05:42 PM

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]


Liam - 24/3/05 at 05:50 PM

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


Ronin - 24/3/05 at 07:12 PM

Thanks everyone. Looks like I might be putting in a bid.


Mark18 - 24/3/05 at 07:18 PM

He might just have the wishbones on upside down. If it's a Dax, then you're unlikely to have handling problems.

Mark