Thread: What temperature?

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Well, 165 seems a bit low to me to make the engine operate efficiently. I like my motors to run in the 185 to 195 range. This is where the make the best horsepower on the dyno, so that would indicate the engine is operating efficiently.... JMO

Originally Posted by Dave Severson

Well, 165 seems a bit low to me to make the engine operate efficiently. I like my motors to run in the 185 to 195 range. This is where the make the best horsepower on the dyno, so that would indicate the engine is operating efficiently.... JMO

I agree with Dave. Runnin' 'em any colder than that increases internal wear dramatically.

I've been told that if the engine is running to cold (160 or below) and with today's gases the engine is not hot enough to burn all of the gas thereby potentially causing ring failure due to washing down the cylinder walls with excess fuel. Complete burn doesn't come until at least 180 degrees. Running 180 to 200 is best.


I'm no expert, but that's what the experts tell me.

OK, seems to be a bit more of an issue than I thought... Guess I'm going to put in a 190° or 200° thermostat. Got a very minor leak round the thermostat housing anyway, good time to yank it off
Thanks for the input, I may be a slow learner, but I'm getting there (I hope )
Greetings from across the lake
(where gas is $6,50 a gallon, so I do want complete burn )