Electric cooling fan options.

strokin6L · Mar 24, 2012

and also with the flex-a-lite fans you can also have them come on or be turn off manually with a switch that can be wired to the VSC controller as an option.

windrunner408 · Mar 24, 2012

Interesting. Well IIRC I remember reading somewhere that Flex-a-lite recommends a gross vehicle combined weight of 18000 lbs with the 7.3L fans, which would be plenty for my truck as long as that would actually be the case.

Mwilbur516 · Mar 24, 2012

I havn't had time to read the wiring diagram yet, but since I am an electrician, it shouldn't be to terribly hard to wire them up. I'm really interested in this mod, especially since I don't tow extremely heavy often at all and you can have them come on manually with a switch.

Zmann · Mar 24, 2012

windrunner408 said:
Those are the numbers that I remember seeing as well and I just dont see what 10k is going give over 6k at 40 mph. I could be wrong but am pretty sure I would be able to tow the max rating for my truck's hitch at 12.5k lbs. JMO.

here is my take
I can hear my fan (stock) come on during the summer while doing 65 and see the temp drop

so it is doing something at higher speeds imho

strokin6L · Mar 24, 2012

since i've owned my truck...i've never, not even once, have i heard my fan come on. I have heard it come on on my buddy's '05 while he was towing....can definitly hear it come on when it kicks in. But never have i ever heard it come on on mine.

windrunner408 · Mar 24, 2012

Zmann said:
Here is my take
I can hear my fan (stock) come on during the summer while doing 65 and see the temp drop. So it is doing something at higher speeds IMHO

I am definitely not saying your stock fan isnt doing anything, but rather asking if anyone knows how much it is doing and if so would the electric fan not be enough. I am inclined to think that it would so I guess I will have to man up and give it a try and see if I notice any difference in temps.

cfdeng7 · Mar 24, 2012

strokin6L said:
since i've owned my truck...i've never, not even once, have i heard my fan come on. I have heard it come on on my buddy's '05 while he was towing....can definitly hear it come on when it kicks in. But never have i ever heard it come on on mine.

Only heard my fan come on once and it was towing about 12k in 100* weather up a 2.5 mile 8% grade lol

strokin6L · Mar 24, 2012

windrunner408 said:
I am definitely not saying your stock fan isnt doing anything, but rather asking if anyone knows how much it is doing and if so would the electric fan not be enough. I am inclined to think that it would so I guess I will have to man up and give it a try and see if I notice any difference in temps.

I've noticed no temp difference between the oil and coolant from before the electric fans to now. Temps have stayed the same.

windrunner408 · Mar 24, 2012

Yea that's what Im talking about Chris. For me anyways, the only downside I see is the price but I love sticking different non-oem stuff on my truck and watching it still run. These are definitely in my future.

Extended Power · Mar 26, 2012

I run a single 18" electric fan out of a Lincoln Mark VIII with the same VSC from Flex-a-lite fans.
Zero issues at all. (But the fan I have is rated at 4300 cfm)

I had bought a used dual fan set up off a member of one of the forums I frequent, and was going to put it on...but its in way to rough of shape to even consider taking the chance of overheating a new engine.

I have another 18" Lincoln Mark VIII fan that I may try to build a dual 18" setup for my truck. (they may have to be stepped. as they will over lap each other no matter what.)

Extended Power · Mar 27, 2012

Been trying to find the actual cfm numbers for the 18" Lincoln Mark VIII fans I have...for the years I have, the common cfm rating is between 4300-4900cfm on the high setting. (No wonder it has never overheated.:LOL

...maybe have one fan on manual, and leave the other on the controller...:shrug:
It's gonna take some fab'n to make the two mount together, so I will push this off for a winter project. (As long as I'm not rebuilding this engine again...):flush:

SSpeeDEMONSS · Mar 27, 2012

strokin6L said:
since i've owned my truck...i've never, not even once, have i heard my fan come on. I have heard it come on on my buddy's '05 while he was towing....can definitly hear it come on when it kicks in. But never have i ever heard it come on on mine.

i have had my fan come on a bunch. but i guess 115*+ air temps will do that.

Garrett