electro d.f.u.

afterburn 549 · 12-10-2006, 04:06 PM

Oh I am so confused.. 1st, Electromotive brags about the voltage. Says it has so much it can kill me and fire lasers into space, and put a re tractor beam on the next Ferrari thats gets in front of me.... and Ooh LA LA
In the next breath they tell me in the directions to positively not hook both coils to same cyl as serious loads can happen...
So to my way of thinkin is- now most of the spark generated will go to the cyl on exhaust stroke right ??...electricity will take the path of least resistance.....whats your take on this gibberish??

Jeff Alton · 12-10-2006, 07:37 PM

There is lots of discussion about this on a thread I started a while ago called "educate my about ignitors" I will try to search it out for you later if you can't find it!

Cheers

Jeff Alton · 12-10-2006, 09:43 PM

Here is the link!

Educate me on ignition ignitors....

Cheers

afterburn 549 · 12-11-2006, 06:33 AM

I remember the thread a long one ?

afterburn 549 · 12-11-2006, 06:57 AM

Ok read the whole thing...no real ans ans far as I can see, just a bunch of opinions? . Guess I will call Jokeomotive this AM and get their twisted slant..

morrisjm1 · 12-11-2006, 07:44 AM

If I understand it correctly, each coil contains one primary coil, and two secondary coils. The voltage is induced in the secondaries as the windings of the secondary are "cut" but the magnetic field created in the primary. Since the coils are isolated from each other, the same voltage will be induced in each secondary and will fire their respective plugs. If the two plugs where in parallel with a single coil, then you'd be right, the plug with the least resistance would fire.

I think.

Quicksilver · 12-11-2006, 10:16 AM

Quote:

Originally posted by afterburn 549
. . .
So to my way of thinkin is- now most of the spark generated will go to the cyl on exhaust stroke right ??...electricity will take the path of least resistance.....whats your take on this gibberish??

The higher the pressure the higher the resistance. Electrons pass freely through a vacuum. (voila... vacuum tubes!) It is because of the higher pressure=higher resistance that engines are more likely to miss at full throttle and at the peak of the intake's efficiency.

afterburn 549 · 12-11-2006, 10:47 AM

thats what I mean.....all this talk about superior spark, and NOW I get what is left....spark on the weak side......

morrisjm1 · 12-11-2006, 11:29 AM

Two seperate secondaries, two circuits. The waste spark is only related to the one firing the cylinder are only related in regared to the primay that induced the voltage. Thus, they fire at the same time. The conditions in their respective cylinders is completely irrelevant to the what you're interested in; the timing and power of the spare for the power stroke. I'm not saying the pressure in the cylinder doesn't affect the resistance across the plug gap, because it does, higher the pressure, the harder it is for the spark to jump the gap. The point is, that the waste spark doesn't 'rob' power from the power spark because they are in separate circuits.

The waste spark is a by-product of this type crank fired ignition. One revolution after it's a waste spark, it's firing for the power stroke. I don't know why they don't want both secondaries in the coil hooked up to both plugs in a twin-plug configuration, but the practical reason, as mentioned by a number of posters, is limp home capability. If something causes the primary to fail, you only lose one plug in two cylinders, vice two plugs in one cylinder.