Quote:
Originally Posted by Lorenfb
Comparative spark pulse signals using a MSD Blaster coil. The first image is the
MSD pulse followed by the Bosch. The vertical scale is the same for both but reduced
by about 45%.
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I don't understand....
The bottom display is as I would suspect, the primary voltage rises to the point wherein the plug fires and then the waveform drops to the level dictated by the coil secondary "fired" resistance (plug resistor, gap voltage drop, HV resistance wiring, ETC)of the secondary during the arc sustaining period.
The top display indicates the faster risetime, expected, but that following "flatline" is ratty enough to indicate an actual plug firing, TOO FLAT.
And WHAT was reduced by about 50%...?