If you have aftermarket coils and have had no problems, consider yourself lucky. Coming from the High performance Mustang crowd, the finding over the last few years has been that none of the aftermarket coils are as reliable as OEM.
In addition, you must be in a very high horsepower application to even think of needing anything other than stock. Better places to spend your money
I agree except that many have run aftermarket coils with no issues. But OEM has been shown to have higher reliability on performance oriented forums.
After market coils advertise higher voltages but the truth is the voltage only goes high enough necessary to jump the plug gap. It
will not go any higher. Voltage is dictated by the
resistance to jump the spark plug gap. Higher voltage (capacity) coil does indicate it has more windings which naturally have to be smaller. This can effectively lowers its current capacity. So if the voltage (stock) is enough to jump the gap what is the benefit of a higher voltage coil ?!
Theoritically you can increase your spark plug gap to take advantage of it but this creates other issues... such as increasing the likely hood that the spark will find alternative sources to ground other than the plug gap. (effectively misfire)
More important is a well encapsulated coil that will hold up under the conditions and spark plugs properly gapped. I would say aim for the smaller size recommended so the plugs have room to open up. This also decreases the likely hood the coil can misfire to ground elsewhere.
Maintaining a good seal between the upper portion of the boot and the plug well go a long way towards eliminating misfires as well. That's a known issue with the cops on these mod motors. Moisture in the plug well is just asking for trouble. Not the coils fault.... it will always fire to the point of least resistance.
Just my thoughts..
Stock coils here.. 14psi boost
