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Mar 19, 2020 12:15:24 GMT
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This is such a brilliant project. Have you seen this YouTube channel: www.youtube.com/channel/UCj1P9eBlPZKyT2k9pFEMBjA/videosGuy is building a single seater using VW Beetle underpinnings. Similar in conception to yous but obviously double the cylinders! Thought it might be useful/interesting. |
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Mar 19, 2020 14:15:10 GMT
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Interesting project dude!
Bookmarking this.
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cb11acd
Part of things
Posts: 132
Club RR Member Number: 122
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Mar 19, 2020 16:14:30 GMT
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I'd imagine you could get away with a smaller diameter steering wheel from a steering effort point of view, that would greatly help your egress issues. You might need to fit a different one for IVA as well thinking about it Might not fit with the aesthetic though... Cracking build by the way, been watching with interest
The wheel is bothering me a bit.
I will use a smaller wheel, the 2CV one was just what I had to hand. I will probably go down to 13inch.
To get in this buck I need to remove the wheel, and from what I can read this is 50?50 regarding passing an SVA test. The reasons cited are about it comming off during a drive by accident if it is a quick release (do they do slow release hubs? or locking hubs?) or because it is non-deformable. I plan on fitting a collapsable steering column anyway which sounds like it should be enough.
I had a quick skim through the SVA manual and most of it seems OK. I doubt it will pass first time as there is so much to trip up on but I don't think the changes would be drastic.
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Frankenhealey
Club Retro Rides Member
And I looked, and behold, a pale horse! And its rider's name was Death
Posts: 3,882
Club RR Member Number: 15
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Mar 19, 2020 17:12:23 GMT
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If you made your own hub then you could use one of these to secure the wheel  Nearly 400Nm on the largest one 45mm OD /25mm ID so it should not come loose |
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Tales of the Volcano Lair hereFrankenBug - Vulcan Power hereThe Frankenhealey here |
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cb11acd
Part of things
Posts: 132
Club RR Member Number: 122
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If you made your own hub then you could use one of these to secure the wheel Nearly 400Nm on the largest one 45mm OD /25mm ID so it should not come loose What are they? I can't quite make them out. Do you have a link? |
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Frankenhealey
Club Retro Rides Member
And I looked, and behold, a pale horse! And its rider's name was Death
Posts: 3,882
Club RR Member Number: 15
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Mar 20, 2020 14:41:05 GMT
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Tales of the Volcano Lair hereFrankenBug - Vulcan Power hereThe Frankenhealey here |
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gryphon
Club Retro Rides Member
Posts: 330 
Club RR Member Number: 157
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Mar 20, 2020 15:00:10 GMT
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Frankenhealey
Club Retro Rides Member
And I looked, and behold, a pale horse! And its rider's name was Death
Posts: 3,882
Club RR Member Number: 15
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Mar 20, 2020 17:11:30 GMT
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Tales of the Volcano Lair hereFrankenBug - Vulcan Power hereThe Frankenhealey here |
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Mar 21, 2020 17:34:50 GMT
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Cool project!
If you keep it under 15kW and 450kg you can go for msva.
Also look for MEP single seater race cars. They build in the 60s 70s a single seater for a racing series using 2cv/gs mechanicals.
CAD wise, burton (dutch 2cv kitcars) held a cad contest with solidworks many years ago. They supplied the full cad of a 2cv, maybe somebody have put it on grabcad by now.
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 Click picture for more |
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cb11acd
Part of things
Posts: 132
Club RR Member Number: 122
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Mar 21, 2020 18:55:05 GMT
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I am still debating if I should keep the 2cv engine and go for MSVA Vs bigger engine and SVA...
I have looked for the full CAD model but not found anything. I might send a quick email to them and find out if they can point me to where I can download it.
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broady
East Midlands
Posts: 406
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Mar 21, 2020 21:06:00 GMT
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Great to see you moving on with this! Nice to get the emails telling me to come read. What are your ideas for a bigger engine? Could you start 2CV then upgrade? Or would you need to design it differently for the bigger engine?
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cb11acd
Part of things
Posts: 132
Club RR Member Number: 122
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Mar 21, 2020 22:19:27 GMT
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Great to see you moving on with this! Nice to get the emails telling me to come read. What are your ideas for a bigger engine? Could you start 2CV then upgrade? Or would you need to design it differently for the bigger engine? I am leaving the maximum space possible for the engine. If a bigger engine won't fit in that space then major modifications will be needed and it just won't be worth it. I will design it for the 2cv engine initially, a Moto guzzi engine is shorter and more powerful so should fit. BMW engine is a bit bigger and I might struggle especially with the cylinder heads positioned above the rear arms. A 2CV engine can be made bigger, up to 850cc so that's also am option |
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cb11acd
Part of things
Posts: 132
Club RR Member Number: 122
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I was hoping to make more progress with the time I had, but things abruptly stopped when I hadn't bought everythign I needed before the lockdown.
So one last small update before a long break. My next set of tasks was a whole bunch of cutting, grinding, welding and fabricating for the chassis. That has been put on hold as although I now have a decent welder (Thanks R-Tech!) and some steel to work with, I wasn't quick enough buying welding gas before being locked in.
I do have other jobs to do though, clean the gearbox and check it over. strip down the engine and replace all of the seals and gaskets, check the carbs (and possibly rebuild as well.
The progress I have made is quite minor since the last update. The driveshafts were stripped down, painted and re-built using neoprene gaitors, and I made a bracket. I also tidied the garage and started prepping it to do some welding, fire extinguisher, fire blankets, welding curtains etc.
Hopefully the next update in a few months time will be a big one  |
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Last Edit: Mar 30, 2020 11:16:26 GMT by cb11acd
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Shall look forward to it!
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cb11acd
Part of things
Posts: 132
Club RR Member Number: 122
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Dec 20, 2020 18:54:23 GMT
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Well merry Christmas to me! More updates before the end of the year.  |
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Dec 20, 2020 19:22:36 GMT
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That is a welcome update! Look forward to seeing more 👍
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75swb
Beta Tester
Posts: 1,052
Club RR Member Number: 181
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Dec 21, 2020 23:46:50 GMT
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Yes! Love this. How's the PhD going? Also, and completely against the mantra, I feel an event should be inserted as a sort of broad aim, when events are allowed again... RRG2022? I know that in building my deck the words "this had better be finished by Xmas" have really spurred on progress!
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cb11acd
Part of things
Posts: 132
Club RR Member Number: 122
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Dec 22, 2020 10:15:14 GMT
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Yes! Love this. How's the PhD going? Also, and completely against the mantra, I feel an event should be inserted as a sort of broad aim, when events are allowed again... RRG2022? I know that in building my deck the words "this had better be finished by Xmas" have really spurred on progress! PhD is going really well. The pandemic timed itself reasonably well and a lot of the work that needed doing during the first lockdown was deskwork. I ran an experiment with human participants in October during the window between lockdowns and now it's all desk work til next summer. I have lost time, and there has been very little support for PhDs (basically told everyone to either change your plan or work harder?) But I am funded for 4 years rather than 3 and should comfortably finish on time. A lot of PhDs are really struggling though, cancelling big research trips abroad which they had been working on for a year only to be told "just think of something else to do, oh and by the way you can't extend the deadline and we won't find you for any longer". Anyway. The broad aim for next year is to build the chassis and have it running. I have a design for the chassis but I am at the moment building small sections of it to test measurements and positioning. A lot is being done, but I kept going in circles all year so no reall progress. Now though I have more of a plan and I should be able to make some progress |
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Dec 23, 2020 15:46:38 GMT
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Welcome back!
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cb11acd
Part of things
Posts: 132
Club RR Member Number: 122
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Dec 31, 2020 14:12:47 GMT
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I said the end of this year and I am determined to stick to it.
So here is the plan.
January - finalise the last few bits of chassis layout (pedel mounting, engine position, occupant space). It is all currently within a close ballpark of correct I just want to mock a few bits up before commiting.
February - Begin welding chassis together. I will use the old Citroen one to pin down the new one to keep alignment and eventually move the chassis to a build table/platform to finish it off. March - By the end of march I want most of the chassis welded together so I can start to fit the Citroen bits (suspension and steering) April, May, June - Carry on fitting parts, and finish the chassis welding. At this stage I want a rolling chassis with the engine and gearbox in place. July, August, September - I want a running but in no way driveable car. The gear linkage will need a lot of thought and I expect I won't be able to get it all done, but I want all of the systems in place to fettle with. By December - A drivable chassis Now wahat I need is the weight of the internet pushing down on me preasuring me to keep to schedule. Lets review this January 1st 2022 to see If I managed to stay on schedule (doubt).
So what will it look like? well I am now officially on revision 4 but in reality revision 84 as I am bad at keeping a revision history. Over the year it went from a single seat open wheel to 2 seat close wheel to 2 eat open wheel and now back to 2 seat close wheel design. I am keeping in mind the IVA test for headlight positions and chassis construction hence the flip flopping. I also want it to comfortable seat me and someone else my size (over 95th percentile) so packaging everything is a challenge.
This weekend I will confirm a few of the unknowns (listed above) and finalise the chassis design to order the steel. |
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Last Edit: Jan 2, 2021 10:31:29 GMT by cb11acd
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