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Megasquirt Field Dictionary |
There are 2 types of fields in MegaLogViewer.
Calculated Fields: | |
Wideband O2 AFR - Air Fuel Ratio calculated based on O2 field for specified WB sensor. This is for MS1 only, MS2 typically logs AFR directly to an afr field.
Wideband O2 Lambda - Lambda calculated based on O2 field for specified WB sensor. This is for MS1 only, MS2 typically logs Lambda directly. Boost(psi) - Converts MAP to psi with 0 = to atmospheric pressure. - Input: "Engine off MAP pressure in KPA" - The MAP value while the engine is not running, corrects for sea level and error. VAC(inHg) - Converts MAP to vacuum in inHg - Input: "Engine off MAP pressure in KPA" - The MAP value while the engine is not running, corrects for sea level and error. Boost-Vac - Below atmospheric pressure Vacuum in inHg, above Boost in PSI - Input: "Engine off MAP pressure in KPA" - The MAP value while the engine is not running, corrects for sea level and error. TP ADC - Calculates the original ADC value based on TP in percentage. - Inputs: - "Maximum TPS ADC" - the ADC value with your throttle at wide open. - "Minimum TPS ADC" - the ADC value with your throttle in idle position MPH\ Xxx\ Gear - Inputs: - "Tire Diameter(in.)" - Drive tire outside diameter in inches - "Final Drive Ratio" - Axle drive ratio - "Transmission gear ratio" - ratio for the transmission gear used KPH\ Xxx\ Gear - Inputs: - "Tire Diameter(cm.)" - Drive tire outside diameter in centimeters - "Final Drive Ratio" - Axle drive ratio - "Transmission gear ratio" - ratio for the transmission gear used HP - Horsepower calculated from rate of speed change. Car must be in the defined gear on level ground for accurate results. Currently uses US measurement units only. - Inputs: - "Min TP to calculate for" - Filter condition, HP will only be calculated when TP is over this value. This heavy calculation will slow log load times if hp is calculated for the entire file. - "Tire Diameter(in.)" - Drive tire outside diameter in centimeters - "Final Drive Ratio" - Axle drive ratio - "Transmission gear ratio" - ratio for the transmission gear used - "Converter stall speed (0 for manual trans)" - Converter flash stall, the RPM that you flash to from a stop with traction. Fuel Flow - Total Fuel flow for combined injectors in lb/hr or cc/min depending on what rating is used for the injector input. - Inputs: - "Injector Opening Time" - the injector open time configured in you MS, usually 1.0 - "Alternating(enter 0.5) or Simultaneous (enter 1)" - whether your injectors are configured to fire Simultaneously or alternating. - "Number of Squirts" - Number of squirts per cycle configured in your MS - "Injector Size" - the rated or corrected rating for your injector - "Number of Cylinders/Injectors" - Number of injectors. Instant MPG - point in time fuel economy in Miles per gallon. Like the instant MPG gauge in many modern cars. - Inputs: - "Injector Opening Time" - the injector open time configured in you MS, usually 1.0 - "Alternating(enter 0.5) or Simultaneous (enter 1)" - whether your injectors are configured to fire Simultaneously or alternating. - "Number of Squirts" - Number of squirts per cycle configured in your MS - "Injector Size" - the rated or corrected rating for your injector - "Number of Cylinders/Injectors" - Number of injectors. - "Tire Diameter(in.)" - Drive tire outside diameter in inches - "Final Drive Ratio" - Axle drive ratio - "Transmission gear ratio" - ratio for the transmission gear used, for Instant MPG usually your high gear. 1.0 in non overdrive transmission, less if overdrive equipped. |