The idea of the clutch fan is that when your vehicle gets hot the clutch is designed to start gripping the fan blade more to allow the fan to spin faster as the temperature risies. Then when you are moving fast the clutch will disengage and free wheel letting the air move freely past it. The fan would actually be moving slower than the air rushing into the engine compartment from the speed of the car and would be blocking the flow.
The most important part of the clutch fan that makes it work properly is the Shroud, it attaches to the radiator and it directs the heat toward the clutch properly. Without the correct shroud the clutch is useless and will not function properly.
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The idea of the clutch fan is that when your vehicle gets hot the clutch is designed to start gripping the fan blade more to allow the fan to spin faster as the temperature risies. Then when you are moving fast the clutch will disengage and free wheel letting the air move freely past it. The fan would actually be moving slower than the air rushing into the engine compartment from the speed of the car and would be blocking the flow.
The most important part of the clutch fan that makes it work properly is the Shroud, it attaches to the radiator and it directs the heat toward the clutch properly. Without the correct shroud the clutch is useless and will not function properly.