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AdamR's MX-R1000 Build

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More CAD and more parts...


AdamR

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Not loads to report this time, but have made some bits of progress.

Done a bit more chassis 'design' (loose term - I'm pretty much just adding triangles everywhere I can and getting them to terminate at the same locations where possible!) and chucked it through the weight calculator on the software - coming out around 78kg at the moment, so should be under 100kg for chassis, wishbones and dampers which is reasonable I think. Not light, but should be stiff and durable. From here I think the whole car should end up around 450kg - we'll see!

There has been one major design feature addition to the design which is a bit Marmite... I'm struggling with the aesthetics a little at the moment, but mechanically it makes a lot of sense. it increases the second moment of area massively and also provides some side impact protection - you can't miss it on the images below :laugh:

tri-2.jpg

side-2.jpg

front-2.jpg

top-2.jpg

rear-2.jpg

The inspiration for this came from a similar build based in Croatia, where the chap had these side 'pods' and then added a few bits of extra bracing - in his software just two tubes increased the torsional stiffness off the chassis HUGELY: http://locostusa.com/forums/viewtopic.php?p=90171#p90171 - interesting stuff...

Other than that, had a comedy parcel through:

mani.jpg

It's a titanium manifold from the standard bike - £75, bargain! However, looks like it may not fit with the billet sump :( I will try and find a way around this as it's a very nice piece of kit and super light.

Also sent my diff off to be converted - starting weight (with output shafts) 24kg, after stripping down to only the required parts: 6kg. Should be under 10kg once all converted as in the second picture.

Had intended to do this myself but for the price I decided to let someone with a more manly lathe tackle it, then I could expend the time / energy elsewhere.

diff.jpg

mx5_1.jpg

After getting some drawings from the diff chap I have found out that clearance between the engine and OS of the chassis is VERY tight - I may need to shift the diff over a touch and pray that the CV joints stay connected. I'm hoping 10-15mm should do the job so fingers crossed... I think the engine (and therefore diff) will also need to go up a touch, not ideal for CoG but if it doesn't all fit together it's not a lot of use!

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