Improving spark plug performance


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donpauli
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Re: Improving spark plug performance

Post by donpauli » Tue Oct 06, 2015 12:12 am



As I remember from automotive ignition classes the biggest thing new plugs provided were sharp edges to get the spark arc started and the older plugs wore the edges round and misfired. Enter platinum iridium etc. extremely hard materials that did not round off so easily so the sharp edges stayed and plugs lasted100k miles. Now cars started using the waste spark method as bikes have for years they discovered platinum or iridium on both the center electrode AND the ground electrode provided great wear great spark and long lift



rcookr1
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Re: spark plugs

Post by rcookr1 » Sat Jul 28, 2018 10:20 am

WingAdmin wrote:
Thu Jul 05, 2012 10:31 am
Incidentally, this isn't really a secret, as the same method of ignition is used in all light aircraft spark plugs:

Aircraft spark plug.jpg
The reason aircraft have 2 ground electrodes is if in case one breaks or the gap is too great the plug will still work because you can just pull over on the road if you have a problem. :D

FM-USA
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Re: spark plugs

Post by FM-USA » Sat Jul 28, 2018 5:12 pm

rcookr1 wrote:
Sat Jul 28, 2018 10:20 am

The reason aircraft have 2 ground electrodes is if in case one breaks or the gap is too great the plug will still work because you can just pull over on the road if you have a problem. :D
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WingAdmin
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Re: spark plugs

Post by WingAdmin » Sun Jul 29, 2018 5:03 pm

rcookr1 wrote:
Sat Jul 28, 2018 10:20 am
WingAdmin wrote:
Thu Jul 05, 2012 10:31 am
Incidentally, this isn't really a secret, as the same method of ignition is used in all light aircraft spark plugs:

Aircraft spark plug.jpg
The reason aircraft have 2 ground electrodes is if in case one breaks or the gap is too great the plug will still work because you can just pull over on the road if you have a problem. :D
I was speaking more to the side gap, rather than the dual ground electrodes. Of course, the dual ground electrodes offers double the area to foul with lead. :)

rcookr1
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Re: Improving spark plug performance

Post by rcookr1 » Mon Jul 30, 2018 9:57 am

Only one will spark not both the one with least resistance will spark.



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