Daddylonglegs
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| posted on 28/11/08 at 07:27 AM |
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Chassis Mods
Guys,
I have been looking around on the USA Locost site, and came across a modification to the chassis someone carried out.
Basically, due to the fact that the seats he had caused his elbows to catch on the side of the chassis rail, he lowered the rear end of the N1 rail to
sit further down F1 (in line with M1).
My question is ...(apart from why didn't he raise the seat a little?  )...what effect do people think this may have on integrity/strength of
the chassis, if any?
Cheers.
JB
It looks like the Midget is winning at the moment......
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A1
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| posted on 28/11/08 at 08:58 AM |
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any pics of it?
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Daddylonglegs
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| posted on 28/11/08 at 12:07 PM |
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quote:
Originally posted by A1
any pics of it?
Best I can do...
http://www.locostbuilders.co.uk/photos.php?action=showphoto&photo=seven030.jpg
[Edited on 28/11/08 by Daddylonglegs]
It looks like the Midget is winning at the moment......
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gingerprince
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| posted on 28/11/08 at 02:02 PM |
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Isn't that the same as the Raw Striker does?
If it's good enough for them...
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Canada EH!
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| posted on 28/11/08 at 03:39 PM |
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Have a look at a Caterham, shouldn't make any difference, however leaves the upper torso without much protection from the side.
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clubbie7au
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| posted on 1/12/08 at 12:55 PM |
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G'Day All,
If you drop rear of the cockpit side rails 60mm it gives a much nicer side profile to the car. The standard Locost side rail makes it look
like a bath tub.
Regards,
Mike.
Mike @ The 'CLUBHOUSE'
Clubman Workshop. ;-))
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Daddylonglegs
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| posted on 1/12/08 at 01:30 PM |
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Thanks for the input guys. I haven't got my seats yet, but once I have at least I know I should be OK to mod if necessary.
Thanks again. 
JB
It looks like the Midget is winning at the moment......
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cymtriks
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| posted on 7/12/08 at 04:11 PM |
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To answer the OP, it makes it worse.
I've done a full analysis of the locost design in FEA (Nastran) and do structural analysis for a living.
However it has to be said that the difference is probably small and also probably no more than other changes you may have to make as you go along.
The tubes that really affect the stiffness are tubes R and S. "short" R tubes are often used to get around a big engine manifold but its
far better to use a Y brace (as on a Caterham), and better still to use a brace each side of the engine.
If you do lower the sides then you are making yourself more vulnerable to an impact but it probably ammounts to different levels of deadness in the
real world.
You could double up the top side tube (some seven kits do this anyway) and get some peace of mind if it wories you.
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Daddylonglegs
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| posted on 8/12/08 at 08:36 AM |
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quote:
If you do lower the sides then you are making yourself more vulnerable to an impact but it probably ammounts to different levels of deadness
in the real world.
You could double up the top side tube (some seven kits do this anyway) and get some peace of mind if it wories you.
That's my thoughts exactly. If you take a side hit then the chances are if you don't get crushed you'll probably break your neck
with whiplash or something anyhow 
If it's my time then it's my time. 
JB
It looks like the Midget is winning at the moment......
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