Is it possible (advisable) to use an electric puller as the only fan in a Bronco, or do they always have to be used in conjunction with the stock fan? What about a push/pull setup?

thanks,

-aaron

 

Anyone that i've ever known to use an electric fan use it to replace the old belt driven fan. Mainly to be able to shut it off temporarly while crossing semi high waters etc.

 

Seen both a pusher and puller used on Bronco's without the factory fan. They will move just as much air and more at lower speeds, also as BigFord said you can turn them off in high water areas.

 

I wouldn't recommend going with just electric fan(s). I've seen many overheating problems created in EB's (and other vehicles) by doing it. Even a large CFM rated electric fan has trouble keeping a 302 cool at low speeds.

Jason

 

I was thinking about going electric because I'm replacing the radiator with a new aluminum Be-Cool, and thought a simultaneous fan upgrade might be good (I need all the cooling I can get living in Phoenix) In the WH catalog they say the Nightmare (their long time test vehicle, at least as long as I can remember) uses an electric fan (16" Spal) as its only cooling fan. I wasn't sure if they meant only auxilliary fan or only fan period. Jason, wouldn't a push/pull combo be really effective?

 

I've heard that the Taurus setup seems to do pretty good, at least on the street. Haven't got much feedback on how it works on the trail, though.

IMO, for the ultimate cooling. Go with the factory mechanical fan, a good shroud, and if needed, an electric pusher to go with your alum radiator. If the rest of the engine is in good shape, it should have no problem keeping cool, even in the Phoenix heat. With a push/ pull setup, you're accomplishing the same thing, but with more bracketry blocking airflow.

Jason

 

I installed a 5.0 mas engine out of a 91 Lincoln into my brothers 74 Bronco and at the same time put in a Taurus electric fan. It is the only fan used and cools it very well. The amp draw at start up is high so you must use relays rated for that amount of draw. The fan has three wires, one is ground, one is low speed and the other is the high speed. The thermostat controls the low speed and a switch on the dash over rides the low speed circuit and turns on the high speed side of the fan for extra cooling. My brother says he has never needed the high speed. I would still install the high speed switch though because it is nice to help cool a hot auto transmission.

Joe

 

what make and model taurus cooling fan did you use? year and engine size? can't keep mine cool when it is not moving down the road. on the road it stays on 180, stop in traffic or going off road she heats up and gotta throw it in neutral and hold it at about 1500 rpm and it cools down. just not enough air from the factory fan i guess. have a alum radiator and factory fan and shroud now.

 

Check this web site, it was very helpful

http://www.fordmuscle.com/archives/2003/02/electricfan/index.shtml

 

thanks, think i will give it a try. looks easy enough and a good solution. think i will try it with the 75a alternator and see if it will run it. article said it draws 40a and i only had a 40a alternator before i put on the 75a so hopefully it will run it.

 

The electric SPAL proved grossly insufficient in Arizona, so I yanked it and put in a 3" BL shroud and a 17" fixed pitch mechanical fan. An honest to god 40 degree difference...

-aaron

 

Just passing the forums...and saw the title...so I thought I would chime in...with my electric fan experiences on my '76 F150 4x4 390FE(slight modified 390)...plus 4" lift with 33" tires.

#1. I purchased a low profile #210 flex-a-lite dual fan w/2500cfm rating w/adjustable temp controller and 19.5 amp draw for my application with an original 3 core radiator. The truck did fine even sitting in the extreme heat here in ABQ traffic. The only time the engine got hot was on those long steep mountain road climbs. To hot for comfort, plus these fans were on all the time...just trying to keep up.

#2. Knowing that I needed more cooling, I went with the "new" flex-a-lite 27" Electric Fan (dual 13.5") #295 w/Variable Speed Control 60-100%. I also upgraded the tired radiator. Went with a Griffin Alum 1 1/2" sized row radiator. After the install...I have been very impressed. No longer having cooling problems is nice. The dual fans have not kicked in at 100% yet...so the amp draw is less. They are rated at 2760cfm at 60% and 4600cfm at 100%. The amp draw is only 16 at 60% and 28 at 100%...which is pretty efficient to me.

http://www.flex-a-lite.com/auto/index.html

So...I have been "SUPER" happy running an electric fan on my 390FE setup. Makes the engine compartment look "neat" and "clean" without the stock fan/shroud setup.

JMHO...go electric...but make sure to get enough cfm the first time around...

 

The biggest problem that I see with installing an electric fan into an EB is the clearance. I only have 2 3/4" max clearance available on mine, and most fans that are large enough are 3 3/4 " thick. Ford Motorsport does have a "short" water pump for windsors that would give an additional 1 1/2 " of clearance. Does anyone have any input?