Re: Volts to plug

Posted by John T on January 11, 2006 at 11:54:10 from (66.244.90.98):

In Reply to: Volts to plug posted by Dellbertt on January 11, 2006 at 11:37:44:

Dell, I agree with Old, I personally dont own any meters that would read that voltage, its very high and short lived you know. It may cause an arc over or pop a fuse inside the meter!!!! It (coils output voltage) only rises to whatever voltage is needed to arc current across the spark plug gap, which is a function of the gaps width and the medium (fuel and compression) in which it fires, regardless if on a Mag or battery powered coil/distributor ignition or a so called High Voltage Super Coil. Given the same plug gap and compression and fuel etc., any of those would fire at near THE SAME VOLTAGE provided theres sufficient energy to arc the gap in the first place.

My best guess (BUT it depends on plug gap and compression etc) would be in the 5,000 to 15,000 volt range.

Generally speaking (depends on the Mag and RPM etc etc) a Mag doesnt store nor can expend as much energy across a plug as a battery powered ignition, which is why good wire core plug wires and components is essential in a Mag.

Best wishes n God Bles yall

John T

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