Let us start out by stating cdi ignition is not for every application or for every person. Both inductive ignition and cdi ignition have their purpose and you can not state without qualification one is better than the other. Also remember we are a performace oriented company therefore do not get involved in unmodified factory vehicles.
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Originally Posted by Speedy Squirrel
tripling or even quadrupling the inductance of the systems
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Huh! Dont remember the last time we measured a COP style coil which has more inductance than an external coil, generally they tend to have less inductance due to restricted room for windings and little to no room for the magnetic core.
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Originally Posted by Speedy Squirrel
Keep in mind that it is the temperature of the spark that ignites the mixture. That temperature is produced by ionization energy from the ignition, and once you get to that temperature, more energy doesn’t do anything. The inductive ignition can keep the ignition temperature hotter for longer than CDI, but CDI can also provide multiple discharges in some conditions to narrow that benefit.
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Here you are getting back into the old myth about longer arc duration being more optimal which has been proven false in many scientific papers. As per an earlier message the ability to ignite fuel is 'EI' Energy multiplied by Time. If you lack one you need to make up with a lot of the other. Multi discharge is also useless except in very limited circumstances as the crank has moved too far between sparks at anything much above idle. Multi dischage is used by both cdi and factory inductive ignition to help solve cold start emission issues on some modern engines.
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Originally Posted by Speedy Squirrel
A problem with CDI on a modern engine is that the intensive refinement of shift behavior, traction, emissions, and fuel efficiency is produced in part by slewing the spark rapidly between operating points. You would have to have a CDI with multiple capacitors to get the slew rates that an inductive COP system can produce easily.
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Not sure where you are coming from here, that does not make any technical sense to us what so ever.
CDI ignition can be ready to fire the next spark in less than one third the time of the fastest inductive ignition system and is far superior in dealing with agressive timing changes and firing interruptions than inductive ignition. CDI ignition is edge triggered and automatically recharges for the next event after firing unlike inductive ignition which requires a precisely positioned leading dwell period to prepare for the next firing event.