Originally posted by Elfie
What happened to all those inventions (mostly different types of carburetors) that had cars getting 150 - 200 mpg? I remember reading about some of them in Popular Science.....or maybe it was Popular Mechanics....
You should be aware that any fuel, gasoline, diesel, alcohol, bio-diesel, or even plain vegetable oil, only has a certain amount of BTU content. No matter what you do to it, you can only get the BTU it has in it. There ain't enough BTU content in any fuel mentioned to make any real car, one that can be used as an actual transportation conveyence in a practical manner, get more than about 60MPG. And even then it will be a diesel. And a diesel doesn't have a carburetor.
A carburetor simply cannot change the BTU content of fuel. Even the best carburetor can only hope to atomize fuel perfectly. And atomizing fuel perfectly won't create any more BTU than what is in the fuel to begin with.
Fuel injection can distribute and atomize a fuel better than any carburetor could ever hope to.