One of the greatest of all writers about our American government, and the dangers it faced, was the French writer and historian, Alexis de Tocqueville. He toured all of America in the early 1800s, and after some years wrote the great two volume book, Democracy in America.
A fan clutch is supposed to be a fluid coupling device that allows the fan to rotate less than the engine speed. The fan clutch should engage before the engine gets up to 220F. A standard cooling system fan clutch should spin at 33% of water pump speed (RPM) when not engaged and 75% of water pump RPM when engaged. A heavy duty cooling system fan clutch should spin at 33% of water pump speed (RPM) when not engaged and 90% of water pump RPM when engaged. Unfortunately, a fan clutch can slowly empty its coupling oil overtime and often seizes. (the oil also can gel/thicken and grab).
I'm looking to do a manual toggle switch for the cooling fan so I can control it. I'm looking or how-to and ideas on doing this. This car is a track car that will NEVER be driven on the streets.All I need is to have the fan on when girding at idle.he easiest way to run fans manually is take power from the battery then fuse it and then put the toggle under the dash and then wire it to the fans if you want a manual on off. That would not be using the thermo switch but would not take long to do at all.