Is a flex fan better than a clutch fan?
The biggest advantage to flex fans is their ability to pull more air through the radiator at an idle than a clutch-operated fan. The flex fan aids in idle or slow speed operation, however, they rob more horsepower than any other style of a fan at high RPMs. They are also particularly noisy at low RPM.
Why is an electric fan better than mechanical?
Electric Fans An electric fan completely removes the mechanical load of spinning the fan from the engine. It places an additional draw on the electrical system, but this is a more efficient means of spinning a fan, and it has a smaller impact on engine drag.
Should I use a flex fan?
For high rpm use, flex fans are considered an upgrade over clutch fans. They can be a good choice for modified vehicles turning 6,000 – 8,000 rpm. Advantages include: They move more air for better cooling.
Can you use a fan spacer with a clutch fan?
When replacing a Clutch Fan with a Flex Fan, a spacer is often required. The Fan Spacer takes up the area where the clutch used to be. This properly locates the new fan in the shroud. Without the spacer, the fan could hit other engine parts.
How much HP does a fan Rob?
In a normal pickup situation, even in high ambient temperatures, the electric fan system will only draw a maximum of about 5 horsepower from the engine. This significant savings improves fuel economy, and, in turn, reduces emissions while improving vehicle performance.
How much power does a car fan use?
Power draw: The more powerful a fan is, the more current it will draw from your vehicle’s electrical system. Twelve- to 16-inch fans can draw from 15 to 28 amps, while some dual fan applications can draw up to 35 amps.
Are Flex fans good?
Is an electric fan worth it?
Although they will place an additional draw on the electrical system, they are a more efficient alternative to mechanical fans and don’t cause the dreaded parasitic horsepower loss. Here are a few other advantages of electric fans: Consistent cooling—they maintain their airflow at all times. Reduced water pump wear.