Ignition only

[Programmer]

Measure it on an ignition scope sometime...it's not the same kV required to
fire the waste side as it is the power side. That's correct about the gap to
"some"
degree--other than the rotor to tower gap and the plug gap is always on the
power side. Not so with DIS. The power side on DIS may be 8-10 kV, where
the waste spark side is 1-2kV (measured).

Lyndon.

>The same current flows across both spark gaps - this must be the case
unless
>we're losing or gaining electrons somewhere. The high voltage winding of
the
>coil moves the electrons across both spark gaps in much the same way a
>battery moves electrons through (say) two light bulbs in series (note
Bruce:
>that's series, not parallel, as you stated).
>
>Okay, the electronic engineers among us may invoke the high frequency
nature
>of the actual spark current, and note that the capacitance and inductance
of
>the high voltage leads and the coil itself have a major influence on what
>currents actually flow where and when. But I'm not going to argue the
point,
>just to note that when one of the HT leads comes off, then these factors do
>become important, but this isn't the usual mode of operation for DIS.
>
>> In other words, a wasted spark DIS doesn't save you a gap compared to a
>> distributor based system. It just moves it.
>
>Correct - my original contention  8^)
>
>Peter.
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