48 cylinder bike

[a10 gf]

 

https://www.odditycentral.com/auto/this-48-cylinder-motorcycle-is-one-of-the-craziest-things-youll-ever-see.html

[muskrat]

G'day E.
I saw that a few years ago.
How would you know which plug is fouled? I suppose 6 could drop out before you'd notice. 
Cheers

[a10 gf]

Never seen it before (maybe already posted here ?).

All such crazy devices, the duality of impressive, fantastic engineering skill vs completely useless, nutcase endresult :O)

[muskrat]

Yes there are some people with too much time on their hands.
Wouldn't want to stall this one at a set of traffic lights!
https://www.google.com/search?client=firefox-b-d&q=chainsaw+powered+motorcycle#fpstate=ive&vld=cid:abdb514c,vid:Nzx8Y--UNto,st:0
Cheers

[BSA_54A10]

https://www.odditycentral.com/auto/this-48-cylinder-motorcycle-is-one-of-the-craziest-things-youll-ever-see.html

HAve a good look at the photo
Look at the exhaust pipes
Even if every cylinder was only 5cc those pipes would choke the engine
Then look at the air filters
One for each bank would not be able to flow enough air
So most likely a "Photoshop" special
Add to that they are 2 stroke heads so how the hell could you feed the cylinders let alone connect the cranks
One needs to be  just a little objective with what one sees particulalry in the age of AI

[RDfella]

Look at the exhaust pipes
Even if every cylinder was only 5cc those pipes would choke the engine
Then look at the air filters
One for each bank would not be able to flow enough air
So most likely a "Photoshop" special
Add to that they are 2 stroke heads so how the hell could you feed the cylinders let alone connect the cranks
One needs to be  just a little objective with what one sees particularly in the age of AI

Dunno...
Say those cylinders (I assume we're addressing the 48 cyl bike) are 50cc each. Each bank is therefore 400cc. An air filter like those fitted was common on British cars - for example two on a 1500cc engine, so one filter would easily supply 400cc.
As for the exhaust, it's a common misconception that a bigger engine needs a larger exhaust. For example, a 6 litre 6 cyl engine needs the same exhaust as a 4 litre 4 cyl. Exhaust gases travel in pulses so individual cylinder size is the criteria, not the total engine capacity.
Maybe with so many cyls on one exhaust, a slight increase may be beneficial but, strictly speaking, the pipe only needs to suit one cylinder. So, again, not really out of realms of possibility.
The job of coupling them all together is another matter - lots of chains and countershafts??

[BSA_54A10]

Have another look
No valves so it is a 2 sroke engine where exhaust gas back pressure is essential so the pipe size is critical
Then there is cooling or total lack of it the second cylinder may just get enough cool air to prevent it from siezing but numbers 3 to 8 definately would not
On top of that look at the proximaty of the supposed exhaust to the other cylinders
By the time you get to the back cylinders the incomming charge would be 100C or better hotter than the front cylinder
Then there is porting to consider
Where is the intake ?
one spot at the front for all 8 cylinders assuming that eash bank runs in a isolated & sealed crankcase
Gunna feed 8 cylinders from 1 port in the side " and how would you do the transfer ports ?
I do have a 2 cylinder horozontally opposed 2 stroke Victa lawn mower.
A total failure in the market because they almost never run on both cylinders
So how are you going to piston port 48 cylinders ?
Just porting a plain 8 would be a nightmare
So perjaps spme on glued a lot of heads onto a box for the fun of fooling people but not an engine that has a snowflakes chance in hell of ever running .
I am sure there is more than one here old enough & silly enough to have done battle with a Kawakasi H2 in their youth so have first hand knowledge of just how difficult they were to keep in good tune and how impossible they were to repair .