Electric cooling fans?? MPG gains? - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 18 (permalink) Old 11-03-2007, 09:47 PM Thread Starter
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Electric cooling fans?? MPG gains?

Well like it says. Anybody have any numbers after switching to electric fans? This week I just took my fan and shroud off to do some testing. Just curious what others have found.
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post #2 of 18 (permalink) Old 11-03-2007, 09:51 PM
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Re: Electric cooling fans?? MPG gains?

I ran without a fan all winter.Got her hot couple times pulling small grades at 25 mph for hours on end.No load.

I have laying in my garage a 525 dollar wonder from flexlite.They worked just the controller melted and catched fire when I was pulling 12k+lbs pulling a hill with the AC on.Don't work for towing or heavy use.


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post #3 of 18 (permalink) Old 11-03-2007, 10:12 PM
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Re: Electric cooling fans?? MPG gains?

I know some people say that they can't pull the air of a normal fan. I'd use one on a truck where you don't have the room for a normal fan. Probably on something like a bog truck.
You can just ask Elmo what happens when your electric fans go out on you.


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post #4 of 18 (permalink) Old 11-05-2007, 11:30 PM
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Re: Electric cooling fans?? MPG gains?

I haven't tried them on my PSD, however, I did try a thermostatically controlled, A/C wired in, dual fan set up from Flex-A-Lite on my '96 Chev Blazer S-10 (Wife's rig) with 4.3 Vortec V-6 and it ran hot all the time. Down here in Arizona during the summer that is not a good thing!! I went so far as ordering the setup that was rated for ALOT more horsepower than the Blazer produced just for the extra CFM of air flow and it didn't seem to help. On the note of MPG gains, I didn't see any improvement. I threw the mechanical back on and haven't had an overheating problem since.

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post #5 of 18 (permalink) Old 11-06-2007, 04:48 AM
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Re: Electric cooling fans?? MPG gains?

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Originally Posted by tjbeggs View Post
Anybody have any numbers after switching to electric fans?

No numbers, but a useful bit of info. Apparently they shut off when the truck gets hot. Knocked me the rest of the way out of the DPC.

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post #6 of 18 (permalink) Old 11-06-2007, 05:10 AM
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Re: Electric cooling fans?? MPG gains?

they shut off cause the controller melts

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post #7 of 18 (permalink) Old 11-06-2007, 01:32 PM Thread Starter
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Re: Electric cooling fans?? MPG gains?

Danny what control melted on you? I'll make sure I don't use that one!!
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post #8 of 18 (permalink) Old 11-07-2007, 12:23 AM
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Re: Electric cooling fans?? MPG gains?

That was me that melted the controller.
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post #9 of 18 (permalink) Old 11-07-2007, 02:23 AM
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Re: Electric cooling fans?? MPG gains?

why dont you just wire it so its always on when the truck is on. then you wont have any problems, right?

ive been running no fan for about 3 months now, with no problems. i will eventually put one on, but why spend the money when i dont need too? its gettin cooler outside so might as well leave it off.

i didnt notice ANY difference in temperature between with fan and without fan. i also didnt notice any gain in mpg. but it could be because of the 8" lift and 37's

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post #10 of 18 (permalink) Old 11-07-2007, 06:51 AM
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Re: Electric cooling fans?? MPG gains?

im a dumb ####


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