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 Post subject: Thermo Fans
Posted: Mon Aug 15, 2011 7:40 pm 
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Hi guys, i have a 88 EA falcon and im going to put a EF radiator in, whats needed to convert it there? also im putting thermo fans in. i just bought a thermo switch from repco, and what relays or how many do i need?

Thanks,
Brandon
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 Post subject: Re: Thermo Fans
Posted: Wed Aug 17, 2011 6:12 am 
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 Post subject: Re: Thermo Fans
Posted: Wed Aug 17, 2011 8:23 am 
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You don't need to do the serpentine belt conversion to put the thermo fans in.

You need Ford EF-El thermo fan assembly, Davis Craig thermatic fan switch http://www.daviescraig.com.au/Controlle ... ntent.aspx
and two relays, one for each fan.

 

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 Post subject: Re: Thermo Fans
Posted: Wed Aug 17, 2011 8:39 am 
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mine has been wired with 3 relays. so when the A/C clutch is activated 1 fan comes on for condensor airflow.

 

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 Post subject: Re: Thermo Fans
Posted: Wed Aug 17, 2011 12:33 pm 
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WILDEB wrote:
mine has been wired with 3 relays. so when the A/C clutch is activated 1 fan comes on for condensor airflow.


Good idea, but I didn't bother when I did my EA, I figured if it was hot enough to run the AC, the fans would have kicked in anyway. :)

 

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 Post subject: Re: Thermo Fans
Posted: Wed Aug 17, 2011 7:33 pm 
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but the condenser will still get hot when you have it on just to defrost windows on icy nights

 

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 Post subject: Re: Thermo Fans
Posted: Wed Aug 17, 2011 11:11 pm 
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WILDEB wrote:
but the condenser will still get hot when you have it on just to defrost windows on icy nights

that's why I say its a good idea :)

 

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 Post subject: Re: Thermo Fans
Posted: Wed Aug 17, 2011 11:18 pm 
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Link to my build in my sig...

My ED radiator supports EL thermos because it has the later tanks on it as most after market ones do nowadays...

Mine are brought on by the EL computer... 3 relays ... low and high speed... computer brings them on with the AC depending on engine rpm and road speed... Works like clockwork and looks a thousand times neater than the primitive mechanical davies craig capillary line...

If you're not going with a EL computer I'd recommend a tridon thermofan switch...

http://www.tridon.com.au/Products/Produ ... 483&P=2014

You can get them in dual temperature for low and high speeds... It would take 4 relays and a diode for low and high speeds with the AC bringing them on...

Three relays for single speed with the AC bringing it on...

Not sure if an EA has a spare bung in the thermostat housing for a temp switch now though? :/ They have that stupid vacuum valve there?

Cheers,
Tim

 

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 Post subject: Re: Thermo Fans
Posted: Thu Aug 18, 2011 8:42 am 
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the davies craig works fine. if you hide it

 

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 Post subject: Re: Thermo Fans
Posted: Thu Aug 18, 2011 3:25 pm 
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madmax wrote:
You don't need to do the serpentine belt conversion to put the thermo fans in.

You need Ford EF-El thermo fan assembly, Davis Craig thermatic fan switch http://www.daviescraig.com.au/Controlle ... ntent.aspx
and two relays, one for each fan.


i have the switch from repco, i think ill get two 5 pin relays with a fuse in them. also im getting a engine built thats gunna have the serpentine belt conversion so thats why im putting in the ef radiator to "prep it" ready for the new engine. the switch is the mechanical type with the dial on top.
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 Post subject: Re: Thermo Fans
Posted: Thu Aug 18, 2011 7:15 pm 
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Hello, I did a controller for a bunch of people a while ago.
Also stuck one into the wife's ED XR6.
It connects to the temp gauge sensor and has dual power feeds from the battery (like the EF/EL setup).
Control strategy is the same as the EL:-
- both fans half speed when "Temp1" is reached
- both fans full speed when "Temp2" is reached
- both fans half speed when A/C is on (goes to full speed if "Temp2" is reached).
Only designed to work with the EL fans.
Fan control cable plugs straight into the fan connector (correct connector type).

The unit is the small grey box behind the LH headlight.

I have enough bits to assemble two more of these if interested....

Attachment:
Thermo Fan Controller Mounting3.jpg
Thermo Fan Controller Mounting3.jpg [ 185.31 KiB | Viewed 136 times ]
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 Post subject: Re: Thermo Fans
Posted: Thu Aug 18, 2011 11:00 pm 
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muzza wrote:
Hello, I did a controller for a bunch of people a while ago.
Also stuck one into the wife's ED XR6.
It connects to the temp gauge sensor and has dual power feeds from the battery (like the EF/EL setup).
Control strategy is the same as the EL:-
- both fans half speed when "Temp1" is reached
- both fans full speed when "Temp2" is reached
- both fans half speed when A/C is on (goes to full speed if "Temp2" is reached).
Only designed to work with the EL fans.
Fan control cable plugs straight into the fan connector (correct connector type).

The unit is the small grey box behind the LH headlight.

I have enough bits to assemble two more of these if interested....

Attachment:
Thermo Fan Controller Mounting3.jpg


my fans a EF so will they still work? and whats involved in connecting it? do i need anything extra other then that box that you can make?
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 Post subject: Re: Thermo Fans
Posted: Thu Aug 18, 2011 11:02 pm 
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Could be made to work with EF fans...

Just leave out the low speed wire on Fan 1 And only Use the high speed winding on it and Fan 2...

 

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93 Red ED 5spd Manual Build Thread

Performance: Complete AUII VCT Wiring & Power Train, Pacey Headers, 2.5" Exhaust, Exedy Clutch, DBA Rotors
Visuals: FG XR Wheel, XR Front, 17's, BA 5 Spd Shifter, BA Ghia Window Switches, NL Cluster
Tunes: 8" Pioneer Sub, JBL Speakers, Clarion Double DIN Headunit

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 Post subject: Re: Thermo Fans
Posted: Thu Aug 18, 2011 11:03 pm 
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FG270KW wrote:


its not going to be a full wiring loom and ecu conversion, just the fan put into my ea, with a mechanical temp switch.
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 Post subject: Re: Thermo Fans
Posted: Thu Aug 18, 2011 11:26 pm 
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Only did it for the EL fans....the unit will not plug into EF fans.
The unit has one 4 pin connector to suit EL fans only.
The EF fans have one 2 pin and one 3 pin connector.

It was very hard getting those connectors as the supplier had a minimum order quantity of five hundred units.
I did manage to sweet talk the supplier into supplying me a small quantity, but they would only do that for one type.....so I decided on the EL 4pin connector.
BTW, I did find it gratifying that the skills honed in my youth (sweet talking young ladies) were not totally lost after decades of lack of use :)

It would be easy to make a EF fans to EL control adapter cable, but, I cannot get the connectors.
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