First off. Don't try to compare the dwell of an electronic unit to a mechanical unit. An electronic unit will ALWAYS have a "shorter" dwell.




When you set the dwell on a mechanical switching point set you are attempting to get an average for all contacting points. Wear and point bounce are calculated into the recommended settings. There is no bounce or variance in a Hall Effect or optical sensor (there might be a slight one in a variable reluctor system but that's a whole different affair). The Pertronix/Hot Spark set ups are Hall Effect systems. Any difference in the dwell between the two is merely a difference in the internal magnetic switch

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