Converter Temperature
From my experience with experimenting with coolant flow through the Model E converter mounted on my 1977 Pontiac, I found that running cooler coolant temperatures had a detrimental effect on my fuel consumption. On a different post about gas valve profiles, franzh confirmed that cooling the propane has the effect of making it denser, requiring a fuel mixture adjustment change. As the cruising fuel mixture is not adjustable on 425 mixers, I wanted to investigate this further. In my opinion, the converter should ideally be supplied with water at a constant temperature. The control valve could be either a globe valve with a hand wheel or a Thermstat. With the hand valve, I would try running the converter with the valve wide open and establish a baseline fuel consumption. After determining the baseline fuel consumption, I would then close the valve by a half turn and measure the new fuel consumption. I would keep repeating this test until I saw that the fuel consumption began to decrease and then I would restore the valve opening to the point where fuel consumption were the lowest. I have no experience with the Thermstat valve but have asked Gann Products for more information. I would like to know if anyone has any experience with its reliability and its effectiveness.
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