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Correct Spark Plug For Mini Converted To Electronic Ignition


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#16 Ethel

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Posted 22 July 2016 - 10:27 AM

Most leads offer adequate suppression, unless they're copper core. Silicone is the insulation, they'll be carbon string unless they say otherwise. I may be wrong, but I think resistor plugs are a bit better as they're nearer the spark gap?

 

The resistance is negligible compared to spark plug gap, so you won't see any difference in performance. 



#17 racingbob

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Posted 24 July 2016 - 01:08 PM

Most leads offer adequate suppression, unless they're copper core. Silicone is the insulation, they'll be carbon string unless they say otherwise. I may be wrong, but I think resistor plugs are a bit better as they're nearer the spark gap?

 

The resistance is negligible compared to spark plug gap, so you won't see any difference in performance. 

 I may be wrong, but I think resistor plugs are a bit better as they're nearer the

 spark gap?

sorry dont understand this statement

 

so your saying wether its a r plug or not  ,if using r leads wont suffer any less performance



#18 Ethel

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Posted 24 July 2016 - 01:47 PM

The spark is the source of the radio signals, the closer the resistor is to it the better a job it can do of suppressing it. It's the plug gap that also controls the strength of the spark. The bigger the gap the bigger the resistance that the coil has to overcome, so the more energy it builds up and releases in the spark. 

 

If you read the bumph for the expensive plug leads it explains how they vary the resistance along the length - but it's still the gap that has the biggest effect on how strong the spark is.






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