for some reason this doesn't seem like a good idea to me. These engines are designed to run at a certain temperature, that's why the thermostat is there. While an engine running to hot is definately not good it is equally not good to run it hard at too low of a temp. This is why you should always warm up the engine before running it hard. I don't remember the specifics but I do remember my IC Engines teacher explaining to us why it's not good to run any engine without a thermostat.