Porsche Fan Conversion on Type 1

[Andy]

I now have a Porsche Fan conversion on my type 1 (2443) with a messa oil cooler with fan, lying horizontal on gearbox. The weather here in the UK is quite cold now, but above freezing. I am finding that the oil is taking ages to warm up. Is there anything I can do to help the oil rise in temp quicker. I would like to get the oil upto operating temp as quick as possible, therefore prolonging the life of the engine. I do not need to use the fan on the cooler, but will do in the summer.

I cannot be the only owner with this problem. Any ideas, such as ducting off the exhaust etc, or any ideas appreciated.