Originally Posted by
Stu @ M Developments
The theory it "Blows Out" is a little silly, i guess it was a term made to describe it easily but its certainly nothing to do with gale force winds. lol
The actual issue is that the more cylinder pressure we run, the more voltage is required at the spark plug center electrode in order to jump the gap in the hostile environment that is a combustion chamber. So its not actually *Boost* related as such, its actually more power related which is why it tends to happen at peak torque but because more power comes with more boost and bigger turbos you can easily see and understand why the mistake is made by many people.
Hi Stu,
considering that in the std set up where the rotor arm gap is effectively 'in series' with the plug gap, is similar to the situation in wasted spark where the two plug gaps are in series (albeit one has a much lower 'resistance' given the lack of combustion pressure), why is wasted spark inherently better?
is this simply down to the greater potential dwell available to charge the coils and thus produce a higher voltage?
if so, then presumably your comment earlier about the coil on plug option is based on this time being longer again with greater potential! to address this issue?
if so, then does coil on plug offer any benfits over wasted?
sorry for the complicated question
