D581 coil limitations with FI?
Thanks David, though I would like to add some information.
OEM's like a large plug gap AND wires that have resistance.
There verification is based on great amounts of testing.
Those who "boast" their low resistance (0) wires are fools.
The facts are such, current flow travels AROUND the outside of the wire.
A wire with a small resistance (50-250 Ohm) will allow longer ARC Duration.
Spark Duration is VERY important at lower RPMs.
When the ignition coil is full of electrons, they ALL must go somewhere.
The best path is into the cylinder at the plug gap, all of them will pass when ionization voltage is present.
The arc must be established by the higher voltage needed for ionization to start, then drops as current flows.
This is where a small wire resistance will help increase are duration by limiting current flow.
The same amount of current, just over a greater amount of time.
Lance
OEM's like a large plug gap AND wires that have resistance.
There verification is based on great amounts of testing.
Those who "boast" their low resistance (0) wires are fools.
The facts are such, current flow travels AROUND the outside of the wire.
A wire with a small resistance (50-250 Ohm) will allow longer ARC Duration.
Spark Duration is VERY important at lower RPMs.
When the ignition coil is full of electrons, they ALL must go somewhere.
The best path is into the cylinder at the plug gap, all of them will pass when ionization voltage is present.
The arc must be established by the higher voltage needed for ionization to start, then drops as current flows.
This is where a small wire resistance will help increase are duration by limiting current flow.
The same amount of current, just over a greater amount of time.
Lance
