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electric dependant engine configuration

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echristley(at)nc.rr.com
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Posted: Sat Sep 22, 2007 7:12 am Post subject: electric dependant engine configuration

David M. wrote:

 	  Quote: 	
		   



 Just curious, but why is it so important to have 2 plugs per 

 cylinder?  The Lycosaurs and etc only have 2 per cylinder because of 

 the jug size.  One plug alone in those engines is not enough to light 

 the fuel evenly regardless of swirl pattern so that's why they went to 

 2 per.  My wife's brand new motorcycle has 2 plugs per for the same 

 reason: jug size.  



Mainly because the rotary's chamber is not cylindrical.  It more "moon" 
	


shaped.  The second plug was added by Mazda for emissions control at 

idle.  At speed, the engine will run on just the leading plug without a 

noticeable change in performance.  It will run on just the trailing with 

a 30% decrease in performance and increase exhaust temperature.  Mazda 

did not mean for the engine to be run this way.  Neither do I.  But if I 

have to some day, I'll be glad to have the option.

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