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Electric fan VS manual fan

Builtnotbought0

Full Member
Joined
Sep 24, 2017
Messages
156
Loc.
Belen NM
I did a search and didn't find any info.

Are you guys running an electric fan or manual? I live in the desert and Im wanting to run an electric, but not if it will not cool like I need it to.

If you are happy with an electric what brand are you running?
 

pcf_mark

Bronco Guru
Joined
Jun 11, 2010
Messages
3,452
Electric fans are really noisy. Really, really noisy. I avoid running them unless I have a car that will not stay cool no matter what else I try. The best cooling "mod" I did was I have an extra thick, extra pass radiator (stock tanks but a twin pass core I think) and the Explorer serpentine drive with the Explorer plastic fan in the stock shroud.

I do not make a lot of power but even on the hottest 95 degree days of summer sitting in traffic it sits on 195 and never moves.
 

Timmy390

Bronco Guru
Joined
Jan 1, 2011
Messages
5,298
Loc.
Conway, AR
So far so good with my electric.
https://www.wildhorses4x4.com/product/High_Output_Radiator_Fan_17in/Bronco_Cooling_Fans

Been 2 years now and no issues cooling my 351W. Even kept it cool whiles dealing with my cracked head (long story). I have it controlled with my SN95 ECM so it kicks on and off at the set temps. I have to say I really keep an eye on it. I have a mechanical gauge and have a habit of watching it climb at red lights only to see it start to fall once the fan kicks in. Piece of mind I guess. Running a 195 stat and temps stay between 200-210ish....maybe slightly over that before the fan kicks on.

I don't off road but so sit in traffic on hot Arkansas summer days.

Tim
 
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Builtnotbought0

Builtnotbought0

Full Member
Joined
Sep 24, 2017
Messages
156
Loc.
Belen NM
So far so good with my electric.
https://www.wildhorses4x4.com/product/High_Output_Radiator_Fan_17in/Bronco_Cooling_Fans

Been 2 years now and no issues cooling my 351W. Even kept it cool whiles dealing with my cracked head (long story). I have it controlled with my SN95 ECM so it kicks on and off at the set temps. I have to say I really keep an eye on it. I have a mechanical gauge and have a habit of watching it climb at red lights only to see it start to fall once the fan kicks in. Piece of mind I guess. Running a 195 stat and temps stay between 200-210ish....maybe slightly over that before the fan kicks on.

I don't off road but so sit in traffic on hot Arkansas summer days.

Tim

That's the one I was looking at. I met a local guy here that put a bad mojo on electric fans into my head, and has me concerned . But Im glad you mentioned that particular fan, because that's what I was looking at.
 
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Builtnotbought0

Builtnotbought0

Full Member
Joined
Sep 24, 2017
Messages
156
Loc.
Belen NM
Electric fans are really noisy. Really, really noisy. I avoid running them unless I have a car that will not stay cool no matter what else I try. The best cooling "mod" I did was I have an extra thick, extra pass radiator (stock tanks but a twin pass core I think) and the Explorer serpentine drive with the Explorer plastic fan in the stock shroud.

I do not make a lot of power but even on the hottest 95 degree days of summer sitting in traffic it sits on 195 and never moves.

Thank you for the feedback .
 

Yeller

Contributor
Bronco Guru
Joined
Mar 27, 2012
Messages
4,709
Loc.
Rogers County Oklahoma
explorer front dress with the explorer clutch fan and a shroud, you'll have absolutely no cooling issues related to air flow. It will always work, it will be quiet unless it needs to be loud and not to start an argument (someone will) will flow more air than any electric. I have an electric on mine and if I could have a mechanical I would
 

Broncobowsher

Contributor
Total hack
Joined
Jun 4, 2002
Messages
33,606
A bronco radiator needs a lot of power to pull enough air through it. Most modern cars that run an electric fan have a lot of surface area and a really thin core. Makes for a fairly light load on a fan. The Bronco is small and thick, take a strong fan.

Advertised CFM ratings are worthless. If all you are going to do is use it as a window fan in the bedroom it might mean something, but not for cooling an engine. Good cooling fans (like Spal who also makes many of the OEM fans) will rate there fans not only in airflow but pressure drop as well. That has to do with how well the fan can pull air through the core and not just more free air.

Those that have made an electric fan work typically use a fan from a production car. They are engineered for cooling, not to reach a price point for marketing. They also draw big amps. Upwards of 40A and spikes can be 70-80A on startup. In short, the stock charging system can't handle a cooling fan that is really capable of cooling the engine. So now the electric fan now needs a charging system upgrade. And it isn't just the alternator that can't keep up. The stock wiring can't handle a high amp alternator either, so wiring upgrades to handle the high amp alternator needed to run the electric cooling fans. And we have not even gotten to the control side of things, adding the temp sensor and relay(s). And they need to be good relays, lot of amps and you don't want them to fail.

Taking a step back, one of the best things out there is the front accessory drive off a 5.0 V8 Explorer. It has a fan designed to keep a V8 cool with air conditioning running in an SUV. It is compact enough that the fan isn't right up against the core. You get an upgraded alternator (still need to upgrade the charge wire). The clutched fan only cycles as needed. No relays, temperature probes.
 

Timmy390

Bronco Guru
Joined
Jan 1, 2011
Messages
5,298
Loc.
Conway, AR
I'm running an electric due to space as in I got none due to my insistence on running the van front dress I got with my donor 351W.

Explorer stuff is nice. No one seems to have any cooling issues with it.

The Derale does pull a bunch of amps. To help with the draw, it will not go into high unless low has already been triggered. Maybe they all work that way I'm not sure.

I do have a 130 amp alt and after market radiator. American Eagle 2-Row Core 1" Thick tubes

Tim
 

tatersalad

Bronco Guru
Joined
Jan 17, 2009
Messages
1,067
I run the Taurus fan with Volvo relay without any issues with my 351W. If I was to change it up I would go the Exploder route though. I think it's a cleaner look and works
 

tatersalad

Bronco Guru
Joined
Jan 17, 2009
Messages
1,067
They say that putting the perforated inner fender skirts is one of the better cooling mods too.
 

garberz

Bronco Influencer
Joined
Jun 24, 2007
Messages
6,841
Loc.
Conejo Valley, Ca.
explorer front dress with the explorer clutch fan and a shroud, you'll have absolutely no cooling issues related to air flow. It will always work, it will be quiet unless it needs to be loud and not to start an argument (someone will) will flow more air than any electric. I have an electric on mine and if I could have a mechanical I would

I'll back up this claim. Any cooling issues I've come across have always been solved with the Explorer fan and clutch.

Mark
 

FordBronc

Contributor
Bronco's, yea I have a couple.
Joined
Dec 26, 2010
Messages
1,238
Loc.
Polk County, Missouri
If you are searching for a good JY fan...Lincoln Mk VIII two-speed fan, Taurus or Lincoln cars.

A 95 Mercury villager minivan with a 3.3L V6. The stock radiator for this thing was a gigantic three core all aluminum radiator.

However, the fan for this was a gigantic 19" two speed fan. This thing is massive, bigger than a Mark VIII. The 1992-2002 Villager is a rebadged Nissan quest.
 
OP
OP
Builtnotbought0

Builtnotbought0

Full Member
Joined
Sep 24, 2017
Messages
156
Loc.
Belen NM
all good info. thanks guys....I was also thinking about building a ram air vent duct in the front bumper that forces air downward over the headers..anyone ever try that? or anything similar?
 

Local Boy

Full Member
Joined
May 23, 2016
Messages
191
Loc.
Mililani, Hawaii
all good info. thanks guys....I was also thinking about building a ram air vent duct in the front bumper that forces air downward over the headers..anyone ever try that? or anything similar?

Yup!

Built an air duct just under the head lights, to catch the air passing over the bumper and direct it into the engine compartment ...

Also designed a ram air intake, in my bumper to force air pass the LT headers.

BTW: I'm running an electric fan for two reasons:
1. Limited space between the rad. and pulleys
2. Needed to have more air passing through the Rad. when at stop lights/idling...The hot Hawaiian heat can really tax the cooling system ...

I also have perforated (expanded metal) wheel well inner fender skirt mods.

I built this thing to run cool in city traffic....and these mods. helped get me there...;D

This monster runs consistently at *180 while sitting/idling in the hot Hawaiian heat...

Aloha
 

FordBronc

Contributor
Bronco's, yea I have a couple.
Joined
Dec 26, 2010
Messages
1,238
Loc.
Polk County, Missouri
I gap my hood in the front (raised my hood pins) for better air flow at crawl speeds. Its a crawler.. gaps do not really matter to me.

I have seen where you can cut out part of the inner fenderwells and replace with expanded metal. I am about to undertake that adventure in my own way.

Kinda like this. https://www.wildhorses4x4.com/product/Ventilators_Inner_Fender_Vents/Bronco_Fender_Parts

PO hacked a bit of the top outer grill shell....? I run a elec fan on the front of the radiator due to clearance issues. And I wrapped my headers.

I also have a hood with holes on the back of the hood scoop.
 

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Builtnotbought0

Builtnotbought0

Full Member
Joined
Sep 24, 2017
Messages
156
Loc.
Belen NM
Yup!

Built an air duct just under the head lights, to catch the air passing over the bumper and direct it into the engine compartment ...

Also designed a ram air intake, in my bumper to force air pass the LT headers.

BTW: I'm running an electric fan for two reasons:
1. Limited space between the rad. and pulleys
2. Needed to have more air passing through the Rad. when at stop lights/idling...The hot Hawaiian heat can really tax the cooling system ...

I also have perforated (expanded metal) wheel well inner fender skirt mods.

I built this thing to run cool in city traffic....and these mods. helped get me there...;D

This monster runs consistently at *180 while sitting/idling in the hot Hawaiian heat...

Aloha

Nice..do you have any pics of your ducting?
 
OP
OP
Builtnotbought0

Builtnotbought0

Full Member
Joined
Sep 24, 2017
Messages
156
Loc.
Belen NM
I gap my hood in the front (raised my hood pins) for better air flow at crawl speeds. Its a crawler.. gaps do not really matter to me.

I have seen where you can cut out part of the inner fenderwells and replace with expanded metal. I am about to undertake that adventure in my own way.

Kinda like this. https://www.wildhorses4x4.com/product/Ventilators_Inner_Fender_Vents/Bronco_Fender_Parts

PO hacked a bit of the top outer grill shell....? I run a elec fan on the front of the radiator due to clearance issues. And I wrapped my headers.

I also have a hood with holes on the back of the hood scoop.

Dang..I guess gaps dont matter...lol I like the expanded metal idea...I'm def doing that..good.idea
 

Skiddy

Bronco Guru
Joined
Oct 8, 2003
Messages
11,549
I run the Taurus fan with Volvo relay without any issues with my 351W. If I was to change it up I would go the Exploder route though. I think it's a cleaner look and works

yep same here but a 5.0
 
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