electric fans

[no mufflers]

I know there is a bunch of threads on electric fans but just wondering if any one has used these before.

perma cool 10'' electric fan there rated at 2350 cfm with a 4.7 amp draw. I can fit 4 of them on the radiator so that would be 9400 cfm. I think that is plenty of air flow but would they use too much power.

 

[Shawn MacAnanny]

I just orders 4 12 inch ones and plan to install when I get a chance. I thin they pull around 10 amps each. I don't think it's too much but I plan on upgrading my alternator to be safe. I'm also going to wire 2 of the fans to run always when ac is on and run two separate thermostat switches in different locations of radiator so one near radiator inlet and one near outlet. No need to run fans if coolant temp is being maintained.

 

[79jasper]

It's said the mark 8 fan is around 6k cfm.

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Here's some on a powerstroke.

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[FarmerFrank]

It's said the mark 8 fan is around 6k cfm.

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Here's some on a powerstroke.

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Like the Lincoln mark 8s? Any idea on the years?


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[crash-harris]

Not 100% sure, but those look suspiciously like JDM electric fans off eBay. All those are rated at 1500 CFM each, regardless of the size. I have 2 on Bruiser and the 3000 CFM does great for the gasser.

 

[79jasper]

Could be. I remember picking the pics up on another forum. I'll have to find it again to make sure.
Yes, Lincoln mark 8. All I know is 90's model.

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[snicklas]

Just another thought, what about a P71 Crown Vic Electric Fan(s). I know they move a ton of air..... if they are running, you can feel the air on your feet when you step out from the drivers door.....

I will snap a couple of pictures this weekend, if you like...... I would do it tomorrow, but when I am around the car tomorrow, it will be dark.......

 

[crash-harris]

What are the dimensions of the shrouds on those fans and how deep are they from the mounting surface? And what are CFM ratings compared to our stock mechanical fans?

My thoughts are two 3.8L fans. My reasons for this are that they are rated at 3000 (or 3500) CFM on high speed, they are 2 speed/3 wire and are very shallow. I can't recall the height/width of the shroud, but they are relatively flat(ish). Problem is, they pull a LOT of power and it would be costly to get thermostat controllers (one for each fan) that can handle the constant power draw/load. I had a Warn constant duty winch relay burn up after about a year with just one fan. IIRC, Derale makes fancy looking controllers that have cooling fins on the housing that can handle the load. Again, they are pricey.

 

[BioFarmer93]

I know there is a bunch of threads on electric fans but just wondering if any one has used these before.

perma cool 10'' electric fan there rated at 2350 cfm with a 4.7 amp draw. I can fit 4 of them on the radiator so that would be 9400 cfm. I think that is plenty of air flow but would they use too much power.

Too much power? Probably not, but 2350 [email protected] is incredibly good if it's accurate. I'm using 2 JDM 10"- 1730 [email protected], each on its own relay, (1st relay controlled by thermostat, 2nd relay controlled by first relay) and a 12" 1730 [email protected] on a manual switch. I made a shroud that seals with neoprene around the perimeter and blow-through flaps that open at speed but seal shut sitting still so only cool air is ever pulled through the rad (3 row aluminum). Towing a car hauler and Chevy Malibu in the summer from Jacksonville to St. Petersburg, my temp never went over 205°F. I'm pretty satisfied with these inexpensive fans, they're holding up so far and they're cheap enough to painlessly replace should one (or more) buy the farm.

 

[BioFarmer93]

I know there is a bunch of threads on electric fans but just wondering if any one has used these before.

perma cool 10'' electric fan there rated at 2350 cfm with a 4.7 amp draw. I can fit 4 of them on the radiator so that would be 9400 cfm. I think that is plenty of air flow but would they use too much power.

Too much power? Probably not, but 2350 [email protected] is incredibly good if it's accurate. I'm using 2 JDM 10"- 1730 [email protected], each on its own relay, (1st relay controlled by thermostat, 2nd relay controlled by first relay) and a 12" 1730 [email protected] on a manual switch. I made a shroud that seals with neoprene around the perimeter and blow-through flaps that open at speed but seal shut sitting still so only cool air is ever pulled through the rad (3 row aluminum). Towing a car hauler and Chevy Malibu in the summer from Jacksonville to St. Petersburg, my temp never went over 205°F. I'm pretty satisfied with these inexpensive fans, they're holding up so far and they're cheap enough to painlessly replace should one (or more) buy the farm.

 

[no mufflers]

not sure why there are two of the same posts ^^^. I am thinking of doing a similar setup and I had a shroud with two 14'' fans and they didn't do chit. I was very surprised on the ratings of these fans I found. here is the link, if I missed something please tell me. http://shop.perma-cool.com/19120-Std-Electric-Fan-10-2350-CFM-19120.htm

 

[BioFarmer93]

Not sure why either, possibly from hiccup during photo upload last night. I went to the link and yes, you repeated the stated info accurately- I never doubted you, was more suspicious of them.. For $92.00 it must be a much more efficient/better designed motor, perhaps brushless?

 

[no mufflers]

well I have them on order along with a Ron Frances fan controller, it can control two separate fans at different temperature settings so I was going to have the two bottom fans set for one temp and the top two set at another temp. what I have been wondering is where I should put the temp sensor, after the thermostat or before?

 

[DaveBen]

Before the t-stat. You need to know the water temperature before it goes through the radiator, and not after, for the fan controller.

Dave

 

[no mufflers]

I already have a temp sensor in the thermostat housing for my temp gauge in the truck. could I take out one of the factory sensors to use for the fan switch.