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  #1  
Old 06-13-2011, 09:25 AM
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Electric Fan

Has anyone ever ran an electric fan setup on their OBS?Since I have added an intercooler to mine,when its hot outside and I am towing with the A/C on the clutch fan runs alot,which reduces pulling power.I would like to do away with the clutch fan and add an electric fan setup.Just wandering about the pros and cons.Thanks
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Old 06-13-2011, 05:33 PM
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There isn't a manufacture of electric fan that makes one for towing on a diesel. The ones that are made to replace the stock fan are not for pulling.

Your best bet would be to put one of the electric clutches on the stock fan.
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Old 06-14-2011, 07:00 AM
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Quote:
Originally Posted by mjonesjr View Post
There isn't a manufacture of electric fan that makes one for towing on a diesel. The ones that are made to replace the stock fan are not for pulling.

Your best bet would be to put one of the electric clutches on the stock fan.
Well said.
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Old 06-14-2011, 11:06 AM
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Where is the best place to purchase one?
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Old 06-14-2011, 05:06 PM
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You'd have to scrounge around on ebay/craigslist/etc.
There were 2 versions:
The Horton EC-450, which was intended for the T444E medium duty, but easily fits the 7.3. Part#996124
US Gear "cyclone power fan" kit. These were marketed for the SD 7.3, but can be made to work on a OBS.

The US gear unit is no longer made, and has no tech support. The Horton is still available, but retail outlets have a hefty price of $650-1000.

If you're patient, you can probably find a NOS one on ebay etc. for ~$300-350.

I bought a Horton unit and it's in my OBS. Awesome unit. I have a couple US Gear units I've found, which I'll be putting on on the SD, and adapting the other to the Project OBS.
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Old 06-15-2011, 05:57 AM
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I know a while back there was talk of adapting the 6.0 fan to the 7.3, I'd have to dig around for a thread but it seemed like a cost effective option as well.
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Old 06-15-2011, 03:10 PM
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You'd need to change the hub, since it is a LH thread on the 6.0 WP. The 6.0 uses a visctronic hub, which is a electronically controlled viscous hub. One would have to do some research as to required input voltage, etc. so it would work right.
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Old 06-15-2011, 03:45 PM
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We had a short discussion about this on another site I frequent. A Ford tech suggested using the 6.0 fan on the 7.3, when I asked him how hard it would be to do this was his reply:

Quote:
6.0 clutch and fan, relay, bunch of wire, N/O temp sensor at whatever temp you want to close, use the sensor OR the manual switch as a ground circuit for the relay to supply power to the clutch only need to know what wire to supply power and ground on clutch....
He's usually pretty spot-on with his advice.
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Old 06-15-2011, 07:22 PM
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What about A Linc. Conti. Fan? Its a dual setup, fits the radiator nicely and moves some air. I am more looking to free up some MPG while making more power. How much ECT does a PSD make? My temp guage struggles to make it into the "normal" area.
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Old 08-05-2011, 03:23 PM
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Wondering if anyone has found an electric fan that would work i don't tow often and getting rid of the mechanical fan has to give some power... my truck never reach the "N" on normal as it is so i think electric fans could be possible
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