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Old 04-01-2012, 09:22 AM   #102 (permalink)
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A carbureted Opel could get 124 MPG in 1971, but it wasn't the carburetor that was responsible for the mileage increase.

It was radial tires, restricted throttle opening, and 15-45 MPH pulses followed by engine off glides where there was 0 fuel consumption. This method has been known since WW2 when gas rationing invited inventive driving techniques and no one was worried about radical fluctuations in vehicle speed. Their objective was to get to their destination without running out of their 2 gallon per week fuel rationing allotment.

If you have information that would prove that their is a 200 MPG carburetor, then that same Opel should get something like 800 MPG with your "miracle" carburetor using the same driving tactic.

My point is and this has been proven many times over decades. Operating the engine at peak efficiency in an all or nothing tactic has proven to increase mileage dramatically. The issue is not increasing mileage, whether it is a carburetor or fuel injection. The issue is how do you apply the pulse and glide technique, without the speed variation.

In order to do this you have to have two things. Capacitive on board energy storage and a variable ration transmission to apply that capacitive storage in the precise amounts it takes to maintain a constant velocity as the storage levels deplete. Once you have these two essential requirements then they have to be highly efficient or the total system losses make the system no more efficient than the status quo.

When done properly you can get the 120 MPG of the old Opel, without speed variations. The Opel averaged 26 MPH, about the same average speed as the EPA's city cycle.

Perfectly mixing (homogenous) the fuel and air will get you about 15-25% better efficiency, not even close to 500%.

regards
Mech
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