It"s all about dwell time and magnetic saturation . A standard coil have enough capacity to spark a V8 at 5500rpm. No problem to handle a four banger running 2000. The coil is fully saturated long before the next spark is required. There is a limit to coil saturation, after a point more is not better. The gain in energy and increase in voltage with electronic switching vs mechanical switch. It"s the instant and abrupt inturption of primary current that obtains the fastest instantaneous collapse of the coil"s magnetic field. Points dribble, arc and sputter which slows the collapse of the magnetic field. Voltage, current and power is all about quicker switching.
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Today's Featured Article - Upgrading an Oliver Super 55 Electrical System - by Dennis Hawkins. My old Oliver Super 55 has been just sitting and rusting for several years now. I really hate to see a good tractor being treated that way, but not being able to start it without a 30 minute point filing ritual every time contributed to its demise. If it would just start when I turn the key, then I would use it more often. In addition to a bad case of old age, most of the tractor's original electrical system was simply too unreliable to keep. The main focus of this page is to show how I upgr
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