- Jan 4, 2011
- Reaction score
I am currently building an Upshur twin cylinder engine. Plans call for a distributor. There has been some discussion in another thread about using a single ignition module with a wasted spark. My thought is to use one module with a COP coil with two high tension wires off from the coil. I have used that successfully with a single cylinder engine. Has anyone done that? Would it work better to use two coils from a common module? Any time that the engine fires one plug is under compression and the other is exhausting. I am not worried about battery life. These engines never run for more than 15 minutes.