Quote:
Originally Posted by Vekke
In diesels optimum AFR is related to injection quantity and engine RPM. OPtimal varies between those and is not constant. Low rpm around 1:19 is optimal and high load higher rpm can as high as 1:50
At lowest rpm and power levels the EGR would make sense in diesel engines. I have had not time to test in this in my own TDI ECO maps
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Interesting, although I'm not following the logic here. How does optimum AFR relate to RPM, and how does it change so much from 1:19 to 1:50?
I've always been under the impression that diesels are most efficient at max power (max fuel injection before it goes coal-roaling rich).