Looking at the numbers only... your coil B will outputting more energy to the spark plug.
Reasons are that the lower primary resistance will allow for a bigger current, and the higher resistance in the secondary winding may indicate that you have more turns which translates to higher discharge voltage (it can also be thinner copper wire showing more resistance with less turns, impossible to know without detailed specs).
It's however not a simple subject, there is more to it, here we only scratch the surface.
Coil B will give you significantly more spark energy, assuming that your electronic box can drive the required current...
Quote:
I have two cylindrical ignition coils and I am curious what the below resistance tells me.
Coil A: - to + = 1.10ohms
- to center = 5.07 ohms
+ to center = 5.07 ohms
Coil B: - to + = .80 ohms
- to center = 11.83 ohms
+ to center = 11.80 ohms
Same application: what do these numbers tell me if I swap out B and replace it with A?
Note: These are both 12v coils, just different brands.
Thanks
