Hello ,

I am often asked: What gap must be put between the electrodes with your ignition, what spark plug should I use , etc.
until now, I have not given any answer
It is very simple, the spark plugs that I use are either dcpr8ea or ra4hc but without electrodes mass.
if we take into account the pressures in the combustion chamber when the spark occurs and if we take into account the test on my bench, you can easily remove the electrode mass and enjoy a spark 3mm long.
this change causes:
increase of the engine idling
better combustion
especially rapid accelerations revs