Larry Macy wrote:
>
> Well his calculations are correct for the displacement/swept volume,
> whatever.
>
> However, the capacity of the engine, here 1274.8, is not the same thing.
> The capacity is measured as total volume, not the displacement.
>
> I used to think that was the right way too. I read a tech article a
> couple years ago, where the exact same question was asked. Only on a
> different engine. Where the calculated displacement was less than the
> stated size.
>
> The answer is, that the manufactor states CC in total volume, not
> displacement. If you do this calculation on any number of engines you
> will find the same dicrepency.
>
> Larry
What you're saying is that the total combustion volume, then, is 1.7cc.
Divided
by 4 gives 0.425cc per cylinder, and a compression ratio of 748:1. That's a nice
number for a Ducati [displacement], but I'd hate to buy the fuel that motor
burns.
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