Originally Posted by
Cyberwolf
There is a world of difference between mechanical Fuel Injection like the ME 109 had and Electronic Fuel Injection.
Mechanical injection does not have the need of an O2 sensor, Manifold Absolute Pressure sensor, Throttle position Sensor, Electronic Control Unit and so on.
While Mechanical is just that it utilizes a high pressure pump and injectors set to pop at a certain time and pressure
Granted the electronic is far more fuel efficient but we all got by with the Mechanical for years and years.
Anyway back to the engine at hand here, W/O and O2 sensor or ECU I can't see how it can operate properly. The early Holley Projection unit's didn't have an O2 sensor and the ECU got lost constantly it was a Major PITA to deal with.
I'll let someone else try this out for now and see how well it does work, Besides I like to tune my engine's myself anyway.
As you more than likely know but for the benefit of others, there have been many different types of mechanical fuel injection systems that have been used for many decades. Two examples would be the constant fuel flow types used in racing and in GA aircraft engines. These flow fuel based on fuel valve position controlled only by throttle position. They get away with these very simple systems because these engines run primarily at fixed position and full throttle settings. Their ability to run over a wide range of throttle settings is very limited and the mixture is pilot adjustable in the case of the aircraft engine or pill adjustable in the case of the race engines. The point here being that there are many different types of fuel injection systems but most / many would not be suitable for our RC engines.