After reading this thread last night I went down to the hardware shop and bought some gaffer tape planning to tape off part of my oil cooler. I decided to fly for 30 mins first to see what temps I was getting (any excuse to fly....).

After about 10 mins at 4800 rpm my oil was 190 and the coolant was 160. Bearing in mind the OAT is 24f this morning I have decided to leave the gaffer tape in the toolbox.

She certainly wanted to climb this morning! 1700 fpm up to 4000 feet