After the upgrade from 1.1.27 to 1.1.87 i got a more responsive engine, but a higher EGT, about 50 to 100° C more at cruise loads.
The ignition should not be changed. I actually tried with over advanced ignition without seeing much change in EGT so i think that should be outruled.
It looks like the only thing changed is the injection strategy. With the new feature injector tirm, the end of delivery is now set to 280-350° at cruising RPM and from 350° increasing upto 570° at 6400 rpm.
As i understand the previous firmware always had end of delivery around 720° ? This would mean a early delivery on closed valve, while i'm now delivering on just before open valve on cruise RPM and on open valve on high rpm. (Inletvalve opens at 354°)
I then tried to set the end of delivery earlier to about 220° but the engine did not like this and fuelling had to be increased to get a stable running.
The consumption has also increased, so the only thing i figure is that more poorly burned fuel is entering the exhaust port. But lambda readings has also not changed so i'm a bit puzzled over this. Could it still be the ignition?