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Anyone using an electric cooling fan?

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WesternRed View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote WesternRed Quote  Post ReplyReply Direct Link To This Post Posted: Apr/12/2019 at 8:21pm
Ford Mondeo here, international version of the Contour I suspect.



Champion radiator with fans controlled by the Holley Sniper EFI, unfortunately I only ended up with single speed rather than dual speed fans, otherwise the Sniper could run high and low speed options. I also added a relay so that the fans switch off when the engine is cranking.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 1982AMCConcord Quote  Post ReplyReply Direct Link To This Post Posted: Apr/12/2019 at 8:47pm
I like the Contour fan... It seems to give good cover to the radiator for a small car like mine. 

I'm a little sketchy on understanding the wiring/fuses but I'm definitely interested in learning more about the dual speed options and having  manual control in the cabin. Those seem like good features to have.


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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brad Quote  Post ReplyReply Direct Link To This Post Posted: Apr/12/2019 at 9:56pm
I use these on my builds. They move a ton of air, alternator upgrade are likely as must though. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 70BBOAMX Quote  Post ReplyReply Direct Link To This Post Posted: Apr/12/2019 at 10:17pm
x2 on the alternator upgrade.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 73hornut Quote  Post ReplyReply Direct Link To This Post Posted: Apr/13/2019 at 6:37am
Originally posted by 1982AMCConcord 1982AMCConcord wrote:

I like the Contour fan... It seems to give good cover to the radiator for a small car like mine. 

I'm a little sketchy on understanding the wiring/fuses but I'm definitely interested in learning more about the dual speed options and having  manual control in the cabin. Those seem like good features to have.


I run power from the battery for the main power, and from the starter relay for the switched power, the low speed comes on at 185, and the high speed switches on at 200, with a 195 thermostat.



Edited by 73hornut - Apr/13/2019 at 6:43am
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 73hornut Quote  Post ReplyReply Direct Link To This Post Posted: Apr/14/2019 at 12:10pm
2 more versions of the same wiring diagram, note that these have all power from battery, where I ran switching power from switched side of starter relay so only had power while key is in on position.





Edited by 73hornut - Apr/14/2019 at 12:27pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote vinny Quote  Post ReplyReply Direct Link To This Post Posted: Apr/14/2019 at 12:41pm
I have a pusher in front with a relay and a thermostat switch in the lower rad hose. The only time that it comes on is on a hot day when idling in a line up to a car show or when swapping cars at the garage.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 73hornut Quote  Post ReplyReply Direct Link To This Post Posted: Apr/14/2019 at 7:01pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ollie Quote  Post ReplyReply Direct Link To This Post Posted: Apr/14/2019 at 7:56pm
Originally posted by vinny vinny wrote:

I have a pusher in front with a relay and a thermostat switch in the lower rad hose. The only time that it comes on is on a hot day when idling in a line up to a car show or when swapping cars at the garage.

Vinny is right on.
 

I had read in one of the posts that they have their sensor in the upper radiator hose. That is not the correct location.

You need your sensor in the lower hose, water into the engine after it has been cooled by the radiator. 

The water in the upper hose(inlet to the radiator) will be the temperature of the block when your thermostat opens. Useless for the sensor.

I use a Spal 180 degree sensor in the lower hose. There are fittings out there that you install by cutting the radiator hose and the sensor screws into the fitting. Make sure the fitting  is grounded. 

For my 232 I use one 12" pusher fan. No AC or accessories and it rarely comes on. 

On my new build The 69, a 258,  with AC, PS and transmission cooling I am going overkill. I have 2, 12" pullers {pullers are more effective than pushers}. One fan, the one closest to the upper inlet hose, will start when the AC compressor is engaged. The second fan will start with the sensor in the lower hose. The fans are located in a shroud covering the entire radiator. 

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Post Options Post Options   Thanks (0) Thanks(0)   Quote farna Quote  Post ReplyReply Direct Link To This Post Posted: Apr/15/2019 at 7:04am
Be-Kool, Spal, Derale, Flex-A-Lite... all big aftermarket names with fans that do the job. It's the cheaper ones that might not pull enough. Admittedly, the two low cost fans I have work just fine without AC though.

The Contour/Mondeo (yes, the same car) fans are two speed... but not. The fans themselves are single speed. There is a big resistor in the bottom left corner of the shroud that cuts power down for the low speed. I prefer to just run them on high, since you don't really cut a lot of power using a resistor... the resistor uses up some power itself. Either use two controllers or a two stage switch so one fan cuts on before the other to reduce the surge current from the electric system. Just a one second delay is all that's needed. The Taurus single large fan is a three wire two speed fan with separate windings for each speed.
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