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Originally Posted by Robert E.
No Jetijs, I was going to try that next. I also remember Greg saying he set the timing close to top dead center, I believe. I Wonder with the much hotter spark If the timing being set normal for gas if maybe we aren't getting some more firing and burning before TDC??? thereby loosing some power. I could easly change the timing to see if this may be happening. Does this make any since?? Bob
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Hi Bob,
I would try to bring the timing closer to TDC or at TDC if it performs well there. The main reason timing is advanced on cars is the fuel energy is delayed from the spark. However the plasma spark maybe faster at converting the fuel energy so one should definitely be testing different timing positions and bring it all the way to TDC if it gives best economy. Leaving it stock you may not see any benefits while using the plasma spark or even losses as it will somewhat stall the piston movement if the fuel energy is before TDC.
You may also need to lock the timing advance mechanism.
Let us know of your result once you change things.
Luc