Contour Enthusiasts Group Archives Forums General Troubleshooting Wrong Spark Plugs???

Originally posted by Auto-X Fil:

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I know. But like I said: the only fine-wires available are single plats. That's the kicker for me.

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Quote:

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...Fine wire means a .030" to .040" dia platinum nickle alloy rivet welded to the end of the center electrode. There is about three times the precious metal than what is found on a 'P' level enhancement. The P's are made by crushing and welding a small special lump of Platinum nickel so that it is a disc about .003" thick.

The effect of the point on the center electrode is reduction of required firing voltage and that aspect slows down the erosion of the sidewire. Consequently, we can use a single 'finewire' enhancement to replace the double 'p' designs for service and get the same durability.

Some auxiliary advantages of the reduced firing voltage is less stress and therefore better life of coils and wires, etc. and cold foul misfire is improved. Don't go crazy getting some because our systems are robust without it and the improvement is modest and mostly unrecognizable except for special cases. We use it in production as a durability measure for those engines that wear out plugs fastest.

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