I got my expansion chamber cut apart again tonight. Figure that I would lengthen the belly of my chamber to see what it did. I got a new piece of pipe without the multitude of welds. I got greedy and increased the center section another 3.5". Giving me about 32.5" from the piston. That was too much. Great low up to about 35 then some strain up to 43. I figure that at about 35 mph I was past the edge of variator and in the overrev mode. I want the power to be there. Gonna cut it down 3"
While I had it apart I decided to take a photo of the inside stinger. It is picking up the exhaust air from the fat part of the expansion chamber (a low pressure area) rather from the end with higher pressure and noise.
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