Quote:
Originally Posted by Piotrsko
Resistance plugs have a longer duration spark (coupling of milliseconds) due to the effect they have on the inductive time constant. Balancing this is the much higher applied voltage to the plug which can double the gap on non resistance. Net results are effectively the same for the ignition event but could be significant in some applications/engine conditions.
Properly functioning non resistance plugs do not emit more RFI than resistance plugs except when they foul
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I didn’t realize that the spark will be a shorter duration. But even if it is, I don’t think it would matter much (if at all) because after the air fuel mix is ignited, it becomes the ignition source to propagate combustion, so I think it’s more important to ignite more air and fuel at once.
Great point about the gap! I gapped the plugs to the OEM spec of .0044 inches. Should I have gapped it wider to get the maximum benefit?