Ignition Coil Questions..
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Ignition Coil Questions..
Done my homework and learned that 48KV ignition coils do nothing for performance if it only takes 24KV to fire the plugs but i have learned that increased spark duration can not only improve performance but also help to minimize harmful emissions by means of a more complete combustion taking place.
What would you consider as optimum spark duration for a lean-burn design such as my 92 351W ?
Before i can determine if an aftermarket coil will be an improvement or waste of money i must be able to compare values so my first question would be:
What is the spark duration for the factory TFI system ?
With increased spark duration comes increased peak load currents so what is considered a maximum safe peak load current for the factory coil harness and wiring, will it handle almost 10 amps on intermittent basis without melting anything ?
What would you consider as optimum spark duration for a lean-burn design such as my 92 351W ?
Before i can determine if an aftermarket coil will be an improvement or waste of money i must be able to compare values so my first question would be:
What is the spark duration for the factory TFI system ?
With increased spark duration comes increased peak load currents so what is considered a maximum safe peak load current for the factory coil harness and wiring, will it handle almost 10 amps on intermittent basis without melting anything ?
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I hate to sound like I am brushing you off, but if there was any free power to be had with the ignition system, I am sure Ford would have tried to take advantage of it.
There must be more important problems other than spark duration. If you look at what Ford did over the years, they seem to be worried about one coil having the job of the whole engine. They went to coil packs where there where several coils sharing the job, to the coil-on-plug where each cylinder has it's own coil. There are probably many advantages to this, I don't know them all, but I know one would be giving the coil enough time to do it's job.
An easy thing you could do is open the gaps up on your sparkplugs. This will raise the effective voltage at the plug, giving you a larger spark. The problem with this the plugs won't last as long before they need to be changed, and the rest of your system including the wires need to be kept in perfect condition.
The only way I know of for you to increase spark duration is to use a multiple spark MSD system, and I am not sure that it will work with the EECIV system. I don't think changing the coil is going to increase spark duration.
There must be more important problems other than spark duration. If you look at what Ford did over the years, they seem to be worried about one coil having the job of the whole engine. They went to coil packs where there where several coils sharing the job, to the coil-on-plug where each cylinder has it's own coil. There are probably many advantages to this, I don't know them all, but I know one would be giving the coil enough time to do it's job.
An easy thing you could do is open the gaps up on your sparkplugs. This will raise the effective voltage at the plug, giving you a larger spark. The problem with this the plugs won't last as long before they need to be changed, and the rest of your system including the wires need to be kept in perfect condition.
The only way I know of for you to increase spark duration is to use a multiple spark MSD system, and I am not sure that it will work with the EECIV system. I don't think changing the coil is going to increase spark duration.
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