Post
by TXGOAT2 » Sun Mar 13, 2022 6:13 pm
They do work, but today's gasoline does not require their use. They were designed to help vaporize and carburate the low-volatility (more kerosene-like) gasoline commonly sold during the 1920s. Using one could be an advantage when running a Model T under cold and wet, humid conditions, since Model Ts lack an intake manifold heat system like later cars had. However, the same effect could be had by using the Ford sheet metal heat pipe arrangement. Gasoline sold today is, if anything, excessively volatile for use in a Model T in warm and hot weather. If I had a Vaporizer on a car that ran well under the conditions where I used the car, I would not take it off. For average driving situations using today's gasoline, I would not consider adding one. In this area, I've had problems with gasoline boiling in the fuel line and causing hot weather performance issues with a '27 car. Today's "gasoline" is designed for use in non-vented fuel systems with fuel injection, where the gasoline is held under low pressure in the tank, and higher pressure from the tank all the way to the fuel injectors. The pressure prevents the gasoline from boiling in the lines from ambient heat and underhood heat. Model Ts have an atmospheric tank and very low pressure fuel feed to the carburetor, and fuel boiling/percolation can be an issue in warm to hot weather. Hot fuel was an advantage with low-volatile gasoline, but it can be a disadvantage with modern high-volatile gasoline.
