Re: Internet Oddities
Posted by shinyribs on Sep 12, 2013; 4:13am
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Internet-Oddities-tp3613372p4045664.html
You might wanna turn the volume DOWN actually...Honda 1966 RC149. 125cc 5cyl.
And it's big brother. The RC166. 250cc 6 cyl.
If you can find the time I highly suggest you do some research on these bikes.Here's why:
"With a crankshaft made of 13 separate components, each no larger than a domino, it was said to be so delicate that it could easily be deformed by hand, yet held up to the astronomical forces exerted upon it when spinning 333 times per second and twisting out the equivalent power of an average Japanese family car of the day. This was only made possible by the use of incredibly precise construction jigs that allowed the crank to be assembled with the kind of accuracy normally reserved for achieving space flight. Ludovic Surcin, designer of the jigs, likened the task to balancing thirteen billiard balls on top of each other and then making sure they stay put."
They were engineering marvels,even by today's standards.The valve train was assembled with tweezers the parts were so small.
Here's a piston/rod.
Overview:
This bike made 260 hp/litre. In other words,if this had been 1,000cc vs 250 it would have made that full 260 hp. How many modern liter bikes are pushing 260 hp today?...very few.
And if you're wondering why they don't just let the bikes idle it's because they won't. The rotating assemblies are so light that they produce no flywheel effect. Gotta rev 'em to keep 'em running.
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Internet-Oddities-tp3613372p4045664.html
You might wanna turn the volume DOWN actually...Honda 1966 RC149. 125cc 5cyl.
And it's big brother. The RC166. 250cc 6 cyl.
If you can find the time I highly suggest you do some research on these bikes.Here's why:
"With a crankshaft made of 13 separate components, each no larger than a domino, it was said to be so delicate that it could easily be deformed by hand, yet held up to the astronomical forces exerted upon it when spinning 333 times per second and twisting out the equivalent power of an average Japanese family car of the day. This was only made possible by the use of incredibly precise construction jigs that allowed the crank to be assembled with the kind of accuracy normally reserved for achieving space flight. Ludovic Surcin, designer of the jigs, likened the task to balancing thirteen billiard balls on top of each other and then making sure they stay put."
They were engineering marvels,even by today's standards.The valve train was assembled with tweezers the parts were so small.
Here's a piston/rod.
Overview:
This bike made 260 hp/litre. In other words,if this had been 1,000cc vs 250 it would have made that full 260 hp. How many modern liter bikes are pushing 260 hp today?...very few.
And if you're wondering why they don't just let the bikes idle it's because they won't. The rotating assemblies are so light that they produce no flywheel effect. Gotta rev 'em to keep 'em running.
| Free forum by Nabble | Disable Popup Ads | Edit this page |