Hello
I have just developed a spreadsheet to display different views of BSFC contour charts. It converts the Y axis values of torque or BMEP to kw and, with vehicle details specified, also to speed.
It then goes one step further and calculates and plots the possible fuel consumptions for a vehicle at different speeds.
These are the charts produced for the Geo/Swift.
There are another 10 BSFC charts in the spreadsheet.
The spreadsheet can be downloaded from
http://megametrelitre.com/BSFC-GlennThorpe.xls.
Please note: 1 - It is 3.5 mb so can be uploaded to ecomodder; and 2 - a macro is needed in the spreadsheet to calculate vehicle speed from power.