Quote:
Originally Posted by dkjones96
Wrong.
If you create a bigger spark and you get a better burn(effectively advancing timing) and then you retard the timing you aren't left where you were before.
If it takes 45 degrees of crank rotation from the time you spark the plug to the time you hit peak cylinder pressure and with a plasma spark ignition setup you only take 40 degrees you've just taken away 5 degrees of crank rotation from every cylinder on every cycle where the burning of the air and fuel is trying to turn the engine backwards. You're getting rid of a little bit of waste.
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I don't buy your logic.
If the Magic Plugs could somehow light off a sizable fraction of the cylinder area, you might manage to shorten the combustion cycle enough to realize some efficiency savings. I don't see that happening. 'Plasma' or no, you're still starting the ignition with a relatively small spark.
I'm willing to bet that a plasma ignited flame kernel is not significantly different than a fractionally older kernel set off by a plain Jane spark plug. Moving forward from the time that both kernels are of equal size, their behavior and burn characteristics will be indistinguishable.