Coil Voltage
Maybe.
We can break up the question into two parts:
The voltage it takes to jump the spark plug's gap depends on the conditions in the chamber, and in particular the conditions at the tip of the spark plug.
density of the mixture, the portion of the fuel that has vaporized -> which depends on the how well its been mixed into the air, along with termperature and pressure in the chamber, and the fuel's distilation curve. I'm sure there's more but you get the idea.
Bottom line is some conditions will require a higher voltage to jump the gap and start the kernal of flame.
Then there is the length of time the current keeps flowing; and how much current flows during that time.
If a fuel and conditions are such that a higher current actually helps the kernal grow, then can sometimes do that better than other systems.
There's guys who can explain this better than me, but thats why its not a cut and dry answer.
Here's what the voltage looks like at the spark plugs.
Notice the voltage to jump the gap is higher than the voltage needed to keep the spark burning.
Then when the electric sparking is finished, there's usually still electical energy left in the system. That's the oscillations.
There's a more technically accurate explanation for the oscillations that others can explain better but to me it represents left over energy.
Maybe.
We can break up the question into two parts:
The voltage it takes to jump the spark plug's gap depends on the conditions in the chamber, and in particular the conditions at the tip of the spark plug.
density of the mixture, the portion of the fuel that has vaporized -> which depends on the how well its been mixed into the air, along with termperature and pressure in the chamber, and the fuel's distilation curve. I'm sure there's more but you get the idea.
Bottom line is some conditions will require a higher voltage to jump the gap and start the kernal of flame.
Then there is the length of time the current keeps flowing; and how much current flows during that time.
If a fuel and conditions are such that a higher current actually helps the kernal grow, then can sometimes do that better than other systems.
There's guys who can explain this better than me, but thats why its not a cut and dry answer.
Here's what the voltage looks like at the spark plugs.
Notice the voltage to jump the gap is higher than the voltage needed to keep the spark burning.
Then when the electric sparking is finished, there's usually still electical energy left in the system. That's the oscillations.
There's a more technically accurate explanation for the oscillations that others can explain better but to me it represents left over energy.
