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Homebrew small displacement motorcycle engine.

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jamoni:

--- Quote from: Lykle on May 12, 2013, 11:22:26 AM ---Hmm, what a nice and wacky idea!

It depends on the type of motor, but could you mount them in a star?
So you have a central shaft with a larger gear, meshing with smaller gears on each crank shaft. There is your first speed reduction step.
The trouble I see is in any scenario you pick, is getting the motors in sync. Not just revs but in power. You want them all to contribute equally and that aint easy!

But I really like the idea!

--- End quote ---
I never thought of just running them all on one large gear. That would be awesome except it would have to be a vertical shaft, which won't work.

I would love to hear more about these TK boats.

BiggerHammer:
Saw a video on youtube. Someone had 48 chainsaw engines mounted for a motorcycle. At least I think it was 48. Will have to see if I can find that again. Will post a link if I do. Might be fewer engines. (medicated at the moment dental work. please forgive)  :lol:



at least I think they started as chainsaws. I could be wrong.

sebwiers:
Nope, those are two stroke cylinders from a small displacement triple.   Its comparatively easy to build up new 2 stroke engine configs, because you don't have valves to worry about, just the crankshaft; you can literally do thing like chop up the jugs from a tripple and mix them into an inline 8.   That's what he did, then geared 6 of those together.  Not sure if the cranks are custom, or just modified v8 cranks.

cidrontmg:
There's "only" 24 chainsaw motors (German built).
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tekfab:
Why must they be inline ? and not transverse or even in a V4 configuration ?  As for a multi speed gearbox your really giving yourself a lot of work. How about a variable speed drive there's bound to be something out there that you can either use or copy/adapt for your use.

Mike Young

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