Re: How do Atom Computer Ignition modules work?

[debe]

Optimum spark energy the way I see it is factory set & is not adjustable as the cam is keyed to the flywheel & its magnets. Presumably this has been worked out as the optimum spark energy. The only adustment left is the firing point before TDC. The only exception I see is using an electronic module in place of the points, the optimum spark energy is fixed by the trigger point of the generated pulse. In practice ive found the electronic module advances the timing by about 2 degrees, & I haven’t found this a problem in any of the engines ive used. Looking at a CRO picture of the wave form using a module, its triggered at about 2.5 to 3Volts