Quote Originally Posted by Dusty View Post
A note of caution, the 912 is a full flow system and most water coolant thermostats stop this flow. A bypass type allows flow at all times. I have is used a bypass type on a 4 for two years and have substantially reduced warmup times. I also don't run an oil cooler but use a heat exchanger, the coolant keeps my oil temp stable. This is a bit complex and I wonder at times if I should just have added radiator louvres which would also save weight but require a bit more pilot input to control?
I like the heat exchanger idea. The new Ford diesel trucks run oil/water or air/water heat exchangers, the latter for the turbo intercooler.