In Reply to: Re: I took off my thermostat, what do you guys thi posted by Radar on May 24, 2001 at 16:35:46:
Mine does the same. It has nothing to do with airflow over the radiator which is definitely enough. I believe the thermostat does not open fully. I don't think slightly above middle is a problem if it does not overheat when driven hard.
I have noticed that If I drive hard (say above 200 Km/h for a few minutes) and lift off the throttle but do not stop (going a little downhill maybe?) the coolant temp gets low (little above 1/4 on the gauge). I thing this is due to the thermostat remaining fully open while there is airflow over the radiator and the engine does not produce much heat, resulting in overcooling. Has anyone else noticed the same or it is only my thermostat that is 'slow'??
I live in a very hot and traffic laden country. What I did was remove my thermostat completely. During normal driving my car temp stays at 1/4 mark and rises to 1/2 to 3/4 if bumper to bumper. My only problem is that it takes a while before engine reaches operating temp. Has anyone done this and if so does your car behave the same way?
If you remove the thermostat you will not get the correct flows through the engine, you will get hot spots.
GET THE THERMOSTAT, OR AT LEAST A GUTTED THERMOSTAT BACK IN !!! or kiss your engine good bye.
By the way, is gutting the thermostat a commom practice for M3 owners? Whats your temp reading with a gutted thermostat?