So i was looking to replace my radiator fan with eletric fans and was wondering how many cfm"s does factory fan pull? I wast to get something that will be more but not overkill.


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I think it was photoman? who did a test and the factory fan pulls more cfms than any electric tested. I'm sure others will chime in but it seems the majority will say stay with stock fan and if needed add the JDM fan
If you wanted to do your homework you could look into getting a fan from a 90-95 Ford Taurus, or the Lincoln mk.8 (3.8l only). You would need to run it off of a relay, and you'd better have an upgraded alternator for the extra draw. These fans pull 2500cfm on low and 4500cfm in high mode. I doubt you will find anything that is going to trump that. Don't know if the time and cost would be effective for you, but, its an idea.![]()
I haven't been able to find that number. A buddy that designs industrial blower systems looked at mine, did some quick math and his guess for full on flow was a big number. Also he observed that the fan design is a very powerful type, designed as much for power as flow. This is needed because the coolers are relatively thick and stacked, making for a pretty good flow restriction, so the fan needs to pull a good suction to produce flow through it.
Having the CFM number is worthless without the restriction number. It's relatively easy to blow X CFM of air around, add the restriction of a cooler it gets more difficult. Most aftermarket fans are rated ether open or with a single thin cooler, it takes much more power to suck air through the thick, flow restrictive coolers on the LC.
The main problem is the design of the coolers, the LC is designed to have a powerful belt driven fan. Most electric fan designs have thinner coolers with much more surface area (taller and/or wider) per gallon of coolant, making them much less airflow restrictive. Electric fans are good at moving air, but not very powerful at sucking it through restriction.