rev. eng. lambda target

[fphil]

I would like to know  the lamda(MAP,RPM)  map of the OEM WEBER IAW ecu of the biturbo. This would be a kind of reverse engineering for the lambda target map of my new injection.

I have recorded many vemslog with the injection ecu and I thought to use the tool "VE Tune by statistics. The only thing to do is to change the first line "expression" by something like "lambda".

This line is always inactive. How to write it?

Thanks

Philippe

[gunni]

I would export the data and then run  scatter plot against MAP and Lambda.

Given enough data you´ll find the trends for various map/load values

[fphil]

Yes that will do it, but I need to filter the data  to get more precise figures for steady or particular conditions, eg. lamba versus MAT.
I can program the thing but everything seems to be ready in VE Tune,. The VT version1.5.10 2013.08.09 offers some improvements (a spot on the tables follows now the data of the cursor when you scroll lthe Log view, this is really handful) but not that simple option.

[gunni]

this is where the if function in Excel comes in handy,  you can gate everything you want so that only specific values are used for the evaluation.

Vemstune doesn´t have enough firepower to do this type of analysis.