A ballast resistor's main function is to limit the current going into the coil. It only takes about 6 amps on most iginition systems to generate a good spark. Anything beyond that will just waste energy ( the fuel / air mixture in the cylinder is not going to burn any more completely with a hotter spark. At that point, you are at the mercy of the heads and how they are designed.. ), generate a lot of heat at the coil, and put more wear burden on the points. On an electronic ignition module, the power transistor will get hotter and derate. Chris Middlebrook 62 custom |
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