Electric radiator fan recommendations?

chrlsful · Mar 16, 2022

"...barely sufficient for the stock..."
Hummm
"...130A alt with these fans..."

"...Ck the system needs (add in the fan)
compaire to alt output. Some research'n math will assist (in anawering the Q)......"
My suggestion is the 65$ 3G (1994 +, saves the dash light for alt + has some bennies over '1 wire') internally regulated from DB Electric (for example). But ahma cheepo & havea '70.

General karthief · Mar 16, 2022

chrlsful said:
"...barely sufficient for the stock..."
Hummm
"...130A alt with these fans..."

"...Ck the system needs (add in the fan)
compaire to alt output. Some research'n math will assist (in anawering the Q)......"
My suggestion is the 65$ 3G (1994 +, saves the dash light for alt + has some bennies over '1 wire') internally regulated from DB Electric (for example). But ahma cheepo & havea '70.

I didn't understand any of that, are you agreeing with me?

chrlsful · Mar 16, 2022

adding a cautionary note & breifly stating how to avoid.

If U can do the math (addition) and research (ID component draw) U can C how many amps/volts your
e;e system draws (may B the guys here can advise instead) and look on alternater to C it's output (many
havea tag). Then compair to C if it has a lill reserve so as to not B overwhelmed.

As stated, these fans can draw alota power. U are customizing a system. Any time U mod on 1 part of a system
it effects all the others. This car was not designed for this fan. That may B enuff detail. I am often accused of writing in short hand, HTH

Mustang5L5 · Mar 16, 2022

The contour fan draws 25-28amps continuous when running full speed. At startup, they can draw over 100A, however this is for less than 1 second. With proper wiring sizing this usually isn't an issue.

A 130A alt is plenty to support the fan, and should be a pretty basic mod that most foxbody guys should consider before going E fan. Even the 110amp 6G alt would work.

You don't need a 200A alternator for a basic fox with an E-fan added on. Most folks don't even properly size the wire for 200Amps anyway.

chrlsful · Mar 16, 2022

are those good ideas or would you suggest upgrade?
ie: "proper wiring sizing"
"a 130A altern"
Would a 6G have the right mounting for this guy?

KRUISR · Mar 16, 2022

chrisful... can you write your thought/questions/statements in full sentences. I think I understand what you are typing but too many words are missing (your short hand).

Are you asking, questioning, telling, scolding or preaching? Like many emails your tone is all over the place, likely due to incomplete sentences.

Cheapskate207 · Mar 16, 2022

Looks like you did a great job installing the fan and controller! Nice work!

93CalypsoConvert · Mar 16, 2022

Went to a local junkyard and pulled a 130amp from a 2000 Mustang. $50 total. Tested it at O'Reillys before I installed just to be safe.

I followed an upgrade guide I found online and used 4 gauge wire with a 175 amp fuse to replace the factory wiring... My factory lead going to the solenoid was all burnt up and had partially melted. Additionally, the plastic plug on the factory alternator was all melted and charred. Very glad I found this before it became a serious issue! Why did Ford use 14 gauge wire for 65 amps!?!

KRUISR · Mar 16, 2022

That is why upgrade to 3g alt is recommended by many. It gives an opportunity to upgrade and fix the wiring issue.

Mustang5L5 · Mar 16, 2022

175a is too high of a fuse for 4 guage. 125A is more appropriate.

96pushrod · Mar 16, 2022

chrlsful said:
adding a cautionary note & breifly stating how to avoid.

If U can do the math (addition) and research (ID component draw) U can C how many amps/volts your
e;e system draws (may B the guys here can advise instead) and look on alternater to C it's output (many
havea tag). Then compair to C if it has a lill reserve so as to not B overwhelmed.

As stated, these fans can draw alota power. U are customizing a system. Any time U mod on 1 part of a system
it effects all the others. This car was not designed for this fan. That may B enuff detail. I am often accused of writing in short hand, HTH

Jesus Christ, would it kill you to type complete words?

93CalypsoConvert · Mar 17, 2022

Went down to a 100 amp fuse... They didn't have a 125. Everything works great. Shrink wrapped and cleaned up all the wires. Ended up doing more than I thought for a simple rad fan upgrade lol.

Mustang5L5 · Mar 17, 2022

100a is still fine. You’ll never blow that on a fox with just an E-fan. I wouldn’t lose any sleep over it.

KRUISR · Mar 17, 2022

When I did my 3g upgrade, I hooked it up just like my Windstar and Freestar's at the time. 4 ga wire from alternator post directly to the battery +. No fuse, nothing in between. I figured if it was good enough for Ford, it is good enough for me. I am actually using a Freestar cable to make the connection.

nickyb · Mar 18, 2022

KRUISR said:
When I did my 3g upgrade, I hooked it up just like my Windstar and Freestar's at the time. 4 ga wire from alternator post directly to the battery +. No fuse, nothing in between. I figured if it was good enough for Ford, it is good enough for me. I am actually using a Freestar cable to make the connection.

Well I DID add a mega fuse back when I upgraded to 3g, and a few years later the 3g blew and luckily so did the fuse. Murphy's law.

vristang · Mar 18, 2022

anyone know what is sticking out of the contour fan housing? Looks like a heating element?

Kid wita 5oh · Mar 18, 2022

vristang said:
anyone know what is sticking out of the contour fan housing? Looks like a heating element?

That's the low speed resistor.
That's how ford made it a 2 speed fan

Mustang5L5 · Mar 18, 2022

nickyb said:
Well I DID add a mega fuse back when I upgraded to 3g, and a few years later the 3g blew and luckily so did the fuse. Murphy's law.

I ran no fuse for the longest time as well. I did recently install one. I know OEMs don’t fuse them typically but it doesn’t mean you can’t fuse it anyway.

All it takes is that one rare occurrence be and you are glad you went the extra step. I would hate to see anyone lose their car over a fluke electrical fire.

The #1 thing to remember with fusing is you are protecting the weakest part of the circuit which is usually the wire. You want the fuse to be the weakest link, so rate it for the wire size. Your average electrically-stock Fox with a E-fan can easily get away with a 110/130A alt. That's 4G wire and a 125A fuse. There's no need for a bigger alt on these cars. (not that anyone here suggested that) You're never going to pull 130A continuously on that setup. You might get a couple momentary spikes above 100A when the fan/hvac motor kicks on, but these are short lived and not an issue. Sustained, i don't think i've ever seen more than 60-70 amps on my car with EVERYTHING on and the E-fan blowing away. If you are having issue maintaining 14V at idle, look into your pulley size.

vristang · Mar 18, 2022

Kid wita 5oh said:
That's the low speed resistor.
That's how ford made it a 2 speed fan

well, that is a simple design, lol... gotta credit Ford for KISS, I guess...

Mustang5L5 · Mar 18, 2022

vristang said:
well, that is a simple design, lol... gotta credit Ford for KISS, I guess...

The Volvo 2-speed relay is perfect with contour fans if you want to take advantage of that switch on the contour fan. You just need the relay and a BMW dual temp switch.

More info here

https://www.pirate4x4.com/threads/anybody-use-the-volvo-2-speed-fan-relay.893321/

Electric radiator fan recommendations?

chrlsful

Active Member

General karthief

wonder how much it would cost to ship you a pair

chrlsful

Active Member

Mustang5L5

That is…until I whipped out my Bissell

chrlsful

Active Member

KRUISR

Cheapskate207

The left one hangs a little lower

93CalypsoConvert

Active Member

KRUISR

Mustang5L5

That is…until I whipped out my Bissell

96pushrod

I think they're a little easier to get off

93CalypsoConvert

Active Member

Mustang5L5

That is…until I whipped out my Bissell

KRUISR

nickyb

I gotta say i never painted my nuts, Never Ever

vristang

Kid wita 5oh

I'm definitely not in the original hole

Mustang5L5

That is…until I whipped out my Bissell

vristang

Mustang5L5

That is…until I whipped out my Bissell

Similar threads

Electric radiator fan recommendations?

Active Member

wonder how much it would cost to ship you a pair

Active Member

That is…until I whipped out my Bissell

Active Member

The left one hangs a little lower

Active Member

That is…until I whipped out my Bissell

I think they're a little easier to get off

Active Member

That is…until I whipped out my Bissell

I gotta say i never painted my nuts, Never Ever

I'm definitely not in the original hole

That is…until I whipped out my Bissell

That is…until I whipped out my Bissell

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