6000 CFM Electric Fan

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What makes it so tempting? Just curious. You would need to upgrade your alternator to support the additional power draw since it draws almost 1/2 of the stock 80's alternator output. Not freeing up that much power, I guess the ability to turn it off for deep water crossings? I know my electric fan was louder than my mechanical fan.
 
The Motorcraft RF50 fan is almost a direct drop in for the 80 series radiator. It matches the 80 radiator dimensionally (length and width).

It's from the 1996 lincoln continental application, two fans with each having two speeds. Use it with the hollister road fan relay kit.

I have this in my 5.3l powered 80 and it has NO problem keeping it cool. It does use some amps so your alt will need to be sufficient to power it, especially at idle with the AC on. It's an OEM fan, not aftermarket so it's very reliable and pulls a lot of air.

I have my low speed set to turn on at 205F and off at 200F - when it kicks on, the coolant temp drops very quickly. It has yet to activate the high speed, which is set to kick on at 210F. It doesn't run on the highway because passive air flow is enough to keep the motor running around 197F on a hot day (this is the t-stat setting for vortec motors).
 
Well I need to install my sequoia alternator that's been sitting around in the garage for almost a year now. Manual on/off capability, 6000cfm, ditching the mechanical fan, and etc are all tempting.

I will checkout the lincoln fan, sounds interesting.

Thanks
 
I went down this road with my turbo 62 and had idle problems. I switched the alternator pulley size, which helped some. I eventually went back to the stock fan unit. I think a good controller might be the key here.
 
I think 6000cfm will likely be less than the stock fan moves. So quick math...

38amp draw * 14.4v = 547.2W

1hp = 745.7W

So not accounting for the heat loss in the electric motors you are only looking at .73hp from the electric fans. I would assume that the clutch driven fan when in lock up is probably closer to 3-4hp. I have used Spal fans with good success in the past but only because it was a motor swap and the engine and radiator weren't close enough to have the fan the proper spacing in the shroud.
 
Almost went with electrical fan when I was living in N Dakota. No sense having the fan on close to half the year and getting the engine up to operating temp (effective heater temp as well) took forever even with block warmer.
 
I was looking at the single crown Vic fan used on police packages. Think I determined it could fit inside stock shroud using the right spacers.
 
I have no idea what the stock fan is capable of, but these type of fans are designed to flow maximum air at very low (air) pressure drops (6000 CFM @ 0" H20). 6000 CFM through the stk rad, a/c condenser, trans cooler, etc will likely result in a fairly high air pressure drop (0.5" - 1.0"? H20), which means actual air flow will be much less.
 
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