Finally managed to fly again this afternoon, seems the new oil cooler has done its magic now I found one that actually lets the oil through (Mocal 34row). and is actually probably on the cold side for oil & coolant, but I can live with that for now. Can't give accurate figures as it was a bit busy around the airport, & EC2 has no data recording function.
So now that I didn't have to fixate one the oil temp gauge, I seemed to gravitate to the next set of flashing numbers, EGT at 1875 seemed a bit high, adding fuel just made it run rough, did try leaning to the point of rpm drop, A/F went above 18:1 but EGTemps remained when I expected a drop due to the lower power. so not sure whats going on, maybe EGT probes are too close to engine at 55mm from the ports and are still in the flame.
Would appreciate input from the group, otherwise I'm likely to cut the egt wires and fly in an ignorant bliss.