Re: Re: Re: Confused on coil

Posted by J Hagen on December 07, 1999 at 19:51:03 from (206.29.96.46):

In Reply to: Re: Re: Confused on coil posted by MikeH(Tx) oops on December 07, 1999 at 18:56:22:

Guys all this got me so worked up that I dug out my old automotive mechanics book and looked up ignition coils. The average secondary voltage built is 20,000 volts . 20,000 divided by 12V = 1666 to 1 winding ratio,3333 to 1 for 6V. With 20,000 volts grounding itself through the few ohms of primary winding ,the effect is that the secondary winding is grounded equally to both primary terminals. Real world experience has shown me that an engine with coil and battery wired with the same ground will fire better than when coil and battery polarity are oposite .
Also I perfer the 6V coil with a resistor over a 12V coil, as this gives you the option of by passing the resistor during cranking to give a much hotter spark for starting.

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