[Shotimes] Re: 2 Cylinders Fire at once? How our coil pack works...

James F. Ryan III av8r567@optonline.net
Sat, 03 Apr 2004 09:55:13 -0500


I wrote:

> I am under the impression that we need the PP because current flows
> thruu the plug in both directions because of the way the coils are fired.

You wrote:

> They don't do that.

Then you wrote:

> And yes the wasted spark is going in the opposite way of the normal
> spark,. from block to plug.

Make up your mind.  During the power stroke the current flows from center
electrode to side electrode, and during the exhaust stroke the current flows
from side electrode to center electrode.  CORRECT?  Hence the need for
platinum on both electrodes.