Quote:
Originally Posted by s2man
Google also found where I had asked that question in this forum: "Does peak torque equal optimum BSFC?".  I had assumed that was the case. Got verification on that, Daox? The document listed above has maps showing a standard engine reaching peak torque well above the optimum BSFC island (while a VVC engine can extend that island to nearly peak torque). |
I can't remember exactly what I had searched for, but it was on wikipedia. I should mention that it said 'in most cases' the lowest BSFC occurs at peak torque. There are, as always, exceptions to the 'rule'.
The curve ball gets thrown in by altering air/fuel ratios and/or altering ignition timing. Therefore, I accelerate as hard as I can without kicking the engine out of closed loop mode so I know my air/fuel ratio is near 14.7:1. I can't really control ignition timing, so I just keep rpms as low as I can.