ady8077
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| posted on 29/4/06 at 08:04 PM |
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may kitcar mag
Hi
Interesting artical about a RH 2B being tested as part of a degree course
The chassis was torsional rigidity tested, 900Nm per deg
Has any locost chassis been tested? it goes on to say westies are around 3000 Nm's
Adrian
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graememk
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| posted on 29/4/06 at 08:19 PM |
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i think the luego one was..... note that it makes any differance now
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MikeRJ
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| posted on 29/4/06 at 09:42 PM |
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ISTR Cymtriks theoretical numbers for a book chassis were about 1400 lb ft/degree which is about 1900 nm/degree.
One of our Australian members should be able to give some real numbers though, their chassis's have to be tested as part of their
"SVA".
I always thought the 2B and SubK chassis's looked pretty poorly designed. Even the large diamter tubing can't make up for basic design
faults.
[Edited on 29/4/06 by MikeRJ]
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DIY Si
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| posted on 29/4/06 at 09:43 PM |
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The book chassis is rated at near 1400nm. But can easily be made up to near 3000nm if you follow cymtriks plans for stiffening. Basically, fully
triangulate the chassis and its near 3000nm.
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timmy
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| posted on 3/5/06 at 11:01 PM |
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As Mike says, our Oz chassis need to be tested (2000-2500Nm/deg IIRC). Most of our ones exceed that anyway. I know of several who have exceeded
4000Nm/deg, and one that did 6000Nm/deg with some engine bay cross-bracing.
Apparently swapping the main upper and lower chassis longitudinal members with 30x30 section makes a significant contribution.
Tim
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