Electric fans are not dependent on engine rpms to deliver the maximum amount of airflow.
Highest cfm electric radiator fan.
We took a look at affordable electric radiator fans and we found that the lincoln mark viii fan and some of ford s other slightly smaller fans work best.
I know personally about 10 people who used black magic fans and had overheating issues.
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.
1 250 cfm for a 4 cylinder 2 000 cfm for a 6 cylinder.
In addition to that it has 10 blades and has a blade length of 16 inches.
With its overall thickness of 3 26 inch and an overall diameter of 16 73 inches the autosaver88 black electric radiator will fit in the most car giving the best cooling performance.
So the supposed 3300cfm of a bm fan and the 4200cfm of the later mark8 fan is a huge difference.
Follow this general guideline.
The spal derale sp and oe fans are rated through a radiator.
Fans under 390 hp.
The difference is in the fan blade design and the motor size or amp.
Switching from an engine driven to electric fan gains horsepower fuel economy.
Fans over 390 hp.
16 high performance black electric radiator cooling fan assembly kit 2000 cfm pro cool reversible heavy duty s brade engine fan mounting set diameter 16 73 depth 3 26 4 4 out of 5 stars 568 42 99 42.