I was doing some reading on how the average speed density ECU works trying to relate it to PRJ's modifications. From what i understand so far is that this is speed density with alpha-N blending during closed loop and part throttle driving. i know the MAP sensor is obviously important because i forgot to hook the map line up to my ECU and the car idled/ran like complete crap without it lol.
This is where i learned a lot about speed density and the alpha-N blending.
http://support.moates.net/theory-speed-density/
what i think is the MAP sensor is replacing the MAF input in the code meaning that most of the values aside from the VE table itself and the IAT correction are reused for SD. im just curious about how the SD works because i think if i can understand it better the concept can be applied to other motronics as well. i'd like to turbo my V8 after i swap it on its stock ECU and use the SD code in the original ECU with a few hardware modifications to use an external MAP sensor like a GM 3BAR fed to the same analog input. hopefully im going in the right direction.
This is where i learned a lot about speed density and the alpha-N blending.
http://support.moates.net/theory-speed-density/
what i think is the MAP sensor is replacing the MAF input in the code meaning that most of the values aside from the VE table itself and the IAT correction are reused for SD. im just curious about how the SD works because i think if i can understand it better the concept can be applied to other motronics as well. i'd like to turbo my V8 after i swap it on its stock ECU and use the SD code in the original ECU with a few hardware modifications to use an external MAP sensor like a GM 3BAR fed to the same analog input. hopefully im going in the right direction.
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