Quote Originally Posted by jazzaD1 View Post
another observation i had with my old engine (which died a premature death), it was not fitted with a thermostat, it never got above 65C (verified on datalogging software)

i had lousy economy, and a general lack of power

i dismissed it as a wrongly calibrated sensor, the engine eventually packed it in, and upon tearing it down i discovered there was no thermostat fitted, so in my experience, it is better to have a thermostat fitted, it keeps the engine in a close range of temperature, if you have overheating problems with a thermostat fitted, look elsewhere for the cause of them
I agree with you completely.

If a person wanted to get fancy an electric water pump controlled by an electronic t/stat would be the best way to go as the flow would be constant there by getting the best heat transfer once the correct flow was determined. But to me it is a lot of work for an arguable increase in efficiency