[pgfpro]

IMO I think today's engines are not there yet when it comes to fast burn combustion. They are improving every year but still not there. The closer you can have ignition near TDC with max cylinder pressure 15 to 20 degrees ATDC the better. Today's F1 engines are breaking into uncharted territory with their new fast burn HCCI technology. So I think we will see some improvement in this area.

I'm starting to experiment with my lean burn Talon by utilizing N2O to increase flame speed while in lean burn. This should help a ton to increase FE. The down side is I'm using a very expensive oxidizer to improve flame speed so its not cost effective at all, but i want to see if it will work so later I can test some HHO theory to see if it will increase flame speed?