![]() ![]() Taking these factors into account, Maradyne engineers calculate the optimal angle of airflow through its fan at three points-the hub, the middle, and outer blade tips. Factors that Impact Fan PerformanceĪccording to Maradyne, factors such as blade width, blade pitch angle, number of blades, and blade velocity impact a fan’s overall performance. Maradyneuses that same racing technology to build electric fans for daily drivers, street rods, muscle cars and off-road vehicles. Maradyne electric fansare spec equipment for several NASCAR Nationwide and Cup Series teams-a demanding application where cooling is critical to winning. ![]() We contacted the engineers at Maradyneto learn more about what makes good electric fan design–and what you should look for when choosing a fan. In addition, replacing an engine-driven fan can increase horsepower and improve fuel economy by eliminating the drag of the engine-driven fan. The key advantage of an electric fan is increased engine cooling at idle when it is most needed. Without airflow, a radiator is not much more than a holding tank for hot coolant. Optimizing the air movement across the fins of the radiator is essential to prevent overheating-a task that electric fans can often handle better than engine driven fans. ![]() A well-designed electric cooling fanis critical to prevent engine overheating-a good fan will provide the airflow needed to dissipate excess engine heat with the least impact on horsepower and fuel economy. The heat generated from stop-and-go-driving, racing, and towing can kill engines. ![]()
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