I’ve been wanting to Bri g this up for at least a year now and now I have a bit of time. In one of those Tom Reed books it talked about gasifier air ratio, or something like that. I always wondered how in the world could that be controlled. I am not saying this is how it is done but here is my story.
I always made provisions for easy air intake into the humidifier pan. The last version I simplified it by using four wire spacers that made a space between the pan and the bottom of the producer. About a year or longer ago I forgot to install the wire spacers so the air was in shut down mode. The engine seemed to run better that day and when it was time to shut it down I discovered the air inlet was shut off. Of course I’m sure some air can leak by but I can not see any gap!
In the past I always found improved performance by reducing restriction. Allow the engine to breath easier. This time it seems the opposite. Could it be possible that it is best to reduce restriction right up to where all the action is, the reduction area but then choke the intake down a bit to make a small amount of vacuum when the gas is created??