Here is the BSFC chart for Toyota's original 1ZZ-FE when they developed it back in 1998. Interesting how the lowest BSFC is so high in the rpm band. It would be really great to get updated info on the newer versions of the 1ZZ. I know there were some fairly descent changes to it over the years.
1ZZ-FE:
4 Cylinder
1.8L
16 Valve
