After doing some research on propane engines and propane propagation I'm dumping my HHO theory for now and am getting really enthused about doing this both to my 1985 diesel Golf and and to my gasoline/petrol 1972 Beetle. Looks like propane will run at a 30:1AFR no problem. The question comes up whether I should convert the Bug completely to propane or experiment with the hybrid gasoline/propane mix idea.
I wonder if my 23:1 compression ratio in my 1.6L diesel engine would present a problem with propane irrigation.
Looks like I might need to move my thoughts to different thread.