18cc V8

[Mikkel]

If it's 1/6th Scale of a 365hp engine... Should it output 60.83 hp? That's alot!

1:6 scale - in which regard? If, as is the custom, you mean length scale - then volume will be 1/216 compared to 1:1 (1/(6^3)).

[one fast tl1ooo]

nice little motor

[idleidolidyll]

Most impressive. A seven year project!

One question I have on these scale engines - the original full size donk revs to maybe 6,000, but the scale ones always seem to rev a lot higher. Anyone reason why as the bore/stroke etc are set in prefect scale so why don't the engines have the same limits?

Regardless of whether or not it is to scale, an engine with a shorter stroke will almost always be able to rev higher as the piston speed is less in the bore (as long as quality materials are used in both examples).
Piston speed, not revs, is usually the limiting factor as this determines when the components will fail; usually the piston itself or the rings.

No, higher revs may not mean higher piston speed if the stroke is shorteer.

Better metallurgy has helped but there is still an upper limit.

[cs363]

I think nitromethane and a blower might have something to do with it.

Well, if that's what it takes.....

[Ronin]

I've been looking at these on Youtube recently. What really impresses me is the aero engines --- this is a 14-cylinder double-row radial:



The tiny little V8s and V12s... someone needs to make one about 50cc then mount it in an SS50 frame and register it as a moped

'Tis a radial you be wanting then?

Mad German ahoy... Not all a slide show.

[youtube]1TIdQFnUvCA[/youtube]

[cs363]

'Tis a radial you be wanting then?

Mad German ahoy... Not all a slide show.

Fark!!! Insanity has a new home....in Germany!

(again....)