Re: Sound of multiple cylinder engine

Posted by B-maniac on October 03, 2006 at 19:06:43 from (207.241.134.24):

In Reply to: Sound of multiple cylinder engine posted by Hendrik on October 03, 2006 at 16:00:36:

I believe you answered your own question. A 4 stroke engine requires 720 degrees of rotation. A 4cyl has 4 fires in 720, a 6cyl has 6 fires in the same 720 and an 8cyl has 8 fires in 720. Why shouldnt they have a different sound? A JD fires twice in 720 but they are only 180 degrees apart,then no fire stroke for 540 degrees. Still, when they are sitting at idle,you can't really tell it. Put one under a heavy load in the field and if you can put yourself 1/8 mile away,then you can definately hear the gap.

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