Electric Radiator Fans Car Craft Magazine The simplest method of wiring an electric fan is to use a relay that is switched on and off by the ignition switch. this method works well to cool the vehicle but the drawback is the fan will be running constantly when the ignition is on. fan noise and added electrical system load will be present at all times. Tech q&a: correct fan switch location. when monitoring your cooling system, take the temperature reading at the point where the coolant is hottest; on most american v8s, this is at or near the.
Best Radiator Electric Cooling Fan 8000 Cfm Life Maker Speedway motors carries everything from a small 10” fan up to a 16” fan. first you will have to measure the core of your radiator to see just how big of a fan you can run. usually the bigger the fan, the more air it will pull or push. as you can see the 12” fan pulls 1300 cfm, 15” fan pulls 1700 cfm and the fan with thermostat pulls. Electric fans are rated according to the amount of air that can be pushed or pulled through the radiator. this measurement is the cfm (cubic feet per minute) rating. when selecting an electric fan that will work best for your application, you need to first determine the ideal amount of airflow required to meet your cooling capacity. A radiator is useless without airflow, a fan shroud helps direct air through the core. make sure you use one in your vehicle. cfm max airflow. manufacturers rate fans by cfm. cfm stands for cubic feet per minute so an electrical fan with a 1,500 cfm rating will push 1,500 cubic feet of air per minute. Fan performance is directly related minimum 13 15 amps .never use fans below this . the 13 inch spal is 19 amps. nb alternator size must be 80amps minimum. nb fan is best done by 2 stage fan start up switch controller with big high amp fans.
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