Invisible wrote:
> OK, so here's one for you...
> 
> If I put my car into top gear and set the engine to 3,500 revolutions
> per minute, my car travels forward at almost exactly 75 miles per hour.
> So... how far forward does it travel for a single revolution of the
> engine??
> 
> Similarly, at that speed my car achieves roughly 50 miles per gallon of
> fuel. So how much fuel does it inject into each cylinder??
> 
> [My car has a four-cylinder, four-stroke internal compustion engine, and
> is normally-asperated. And runs on petrol, in case that wasn't obvious.
> Presumably the timing is therefore set so that exactly one cylinder
> fires for every revolution of the engine.]
> 
Nope. Each cylinder fires once for every two revolutions. You have a 4
cyl engine therefore two cylinders fire for each rev.

John

-- 
I will be brief but not nearly so brief as Salvador Dali, who gave the
world's shortest speech. He said, "I will be so brief I am already
finished," then he sat down.

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