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Twin Thermo's Question 

 

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 Post subject: Twin Thermo's Question
Posted: Sun Jan 20, 2008 9:23 pm 
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I'm thinking of getting rid of the old clutch fan on my ED and fitting EF-EL twin thermo fans. Now, My question is......
Is it possible to wire up the thermo fans so that they come on when you start the car up so they are running full time until the ignition is turned off?

 

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Posted: Sun Jan 20, 2008 9:33 pm 
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yes just instead of wiring up a thermatic switch to the relay wire it off accessory (cig lighter or something) so that they are constantly on....which is kind of silly cos then the car is gonna take ages to get to operating temperature.

you are best off doing it the right way with a davies craig thermatic switch in the radiator system.
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Posted: Mon Jan 21, 2008 2:38 am 
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Revcore,
Akademiks is spot on, the fans are so efficient that your engine will never get to operating temperature. This is not the best on MPFI engines. Our EB2 has only has one of the EL fans run by the Davies-Craig switch and a relay ATM and I have a manual switch on the second. It rarely needs to be used, only when crawling along on a hot day.
I've been too busy to finish wiring it in properly and only tell you this to highlight how good the fans are. I will finish the wiring asap, as it's the best way to go.
Read through this thread, it gives you plenty of info and options and Bunters doco on this [FM] site gives pix as well.
http://www.fordforums.com.au/showthread.php?t=105477
Cheers,
Paul

 

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Posted: Mon Jan 21, 2008 10:25 am 
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Cheers for the info....Looks like the thermatic switch is the way to go.

 

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Posted: Sun Jan 27, 2008 7:58 pm 
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when i first bought my ea i was unlucky enough to spit a rock thru the clutch fan and into the radiator in reverse so i decided it had to go (also they sound like a ford9000)

replaced the whole assembly with a 5ltr taxi radiator, 16" davies craig thermo (setup to pull{engine side of radiator}) and thermatic swtich because of the 'problems' people have with these models.

whilst not necessary i added another 12inch (setup to push {front of radiator}), removed the aircon condensor and trialed the manual switch and also running it off the thermatic switch (paralell with the 16") and found that running them both off the switch with the manual over-ride works best for crawlin thru traffic and on brake burnouts.

i must also add removing the air con condensor added a markeble difference in cruising temps.

one of the best conversions ever for these cars.

 

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Posted: Sun Jan 27, 2008 8:04 pm 
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a 5lt taxi radiator?- where did you get such a beast. I wouldnt mind one myself
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Posted: Mon Jan 28, 2008 8:40 pm 
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I'd have a 5L taxi on speed dial!

 

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Posted: Mon Jan 28, 2008 10:12 pm 
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I have a 5L EB on LPG - not a taxi though - rust free even and has the 193kw EL v8 in it....

Id like a bit more radiator though.
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Posted: Wed Jan 30, 2008 7:35 pm 
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Hey,

I chose an aluminium cored radiator with plastic tanks, and it was the best thing i have bought, highway cruising temps are in the high 60deg region (allowing for gauge error) I have my fans connected through a voltage switch that gets it voltage signal from the temp sensor, works quite well, espescially with the couple hot days lately. If anyone want pics email me and i'll send them.

Cheers

8-) Daz 8-)

 

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Posted: Wed Jan 30, 2008 7:58 pm 
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'heavy duty assembly' twice as thick as standard (read: more core lines)

 

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Posted: Thu Jan 31, 2008 6:39 am 
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low_ryda : where do I get one of those?

Da22le : Which Voltage switch are you using? - one of the jaycar ones, or another one, and is it affected if the volts in the car drop?

Cheers

Nigel
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Posted: Thu Jan 31, 2008 11:23 am 
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Dazzle,
I'd be interested in seeing your regulated speed fan and wiring setup, sounds a very efficient use of the fans.
Why not post it here as we're always trying to improve our setups?

 

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Posted: Thu Jan 31, 2008 11:29 am 
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As an interesting note : The EB/D Fairmont Climate control Fan Speed Controler is a PWM Setup, and the Transistor is rated for > 20a. Might be something that could be adapted to the thermos, possibly with soft-start as well (wouldnt that be nice....)
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Posted: Thu Feb 14, 2008 11:25 am 
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I was looking into dsigning a similar cct, I'd be interested to see yours.
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