NO. Install the thermostat the engine and the oil was designed for by the manufacturer.
This has been discussed to death in other threads on this forum.
The thermostat controls the engine temperature up to the capacity of the cooling system. Once that capacity is exceeded, the thermostat will go wide open and the water temperature will rise, till the amount of heat dissipated = the amount of heat put into the system by the motor (this is proportional to the temperature difference between ambient and coolant), or till it boils over.
Thermostat will control the temperature at higher speed cruise. This is where there is little heat generated by the engine and there is enough airflow through the rad. At idle or slower speeds there is not enough airflow, so the fan attempts to control the temperature. At WOT there is too much heat generated by the engine. At constant WOT under load the stock system would boil over in 10 to 15 minutes independent of the thermostat (the starting point maybe lower, so there maybe a difference of a few seconds).
So why use a thermostat at all!?! Well, I do not in my race car(s).
In a stock car, the thermostat makes sure that the engine is running warm enough during most of the operation. This is necessary because the oil and engine is designed to run in a narrow temperature band. Too cold and the oil is too thick, clearances are too loose and the metal experiences too much thermal stress (from cold to hot combustion). Too hot and the oil is too thin, tolerances too tight and metal too soft....
Therefore, run stock (rated) thermostat and manufacturer's recommended oil grade. They are all designed to work together!
Therefore, why not run it in a race car? Most people do. I try to get away without by running the car hard (consistent load) during the summer (consistent ambient temperature). Now, during the last track days and cold (50F) mornings, if I do not put enough tape on the grill (NASCAR temperature control method), my water temperatures start dropping on the straights (at full power). I hurry back into the pits when my water hits 150F, much faster, then if it starts heading over 200F. I have a few laps till it hits 240 or more to boil. Engine damage from cold oil and water is much more immediate!
I would throw that thermostat out, unless you are planning to rebuild the engine to run at 160F with new tolerances and test which oil grade is good at that temperature.
Should I install this baby? It gets pretty hot here on summer days not to mention in traffic tho...?
Sent from AutoGuide.com Free App