North American Turbocoupe Organization



independant thermostat fan controler?
4cammer72 Offline
Posting Freak
#1
would there be any harm in bypassing the factory controls to the fan for a adjustable thermostat control to operate the fans.
88tc (sold) but keeping an eye out.
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Jeff K Offline
Administrator
#2
I would leave the factory system intact (if it operates), and piggyback another controller on it. That is what I did. that way, if the aftermarket controller fails, it still has the factory system as a backup.
Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 24 psi, forced air IC, water injection, BPV, Ranger cam, subframes, etc., etc.
86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP N2O, ignition, gears, suspension, etc., etc.
05 Taurus SEL Duratec daily driver
04 Taurus Duratec (wifes car)
02 Pontiac Grand Prix GT
95 Taurus GL Vulcan winter beater
67 Honda 450 Super Sport - completely customized
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Glenn 88TC Offline
Posting Freak
#3
No. You just need to make sure you have a relay to turn on the fan when the AC runs.

I run this one but I don't have ac so no need for that to work on mine.

http://www.jegs.com/webapp/wcs/stores/se...&langId=-1
NO TC and NO headaches.
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4cammer72 Offline
Posting Freak
#4
reason i ask is i think the irmc relays are bad. i checked the tech articles out and tried the various ways to check the fans and they dont come on. there isnt a fuse under the dash is there? the cover for mine is gone and i dont have my manual handy. i can get another used ircm from a friend for a few bucks but thought i could get a aftermarket controler and get it to come on earlier than 210*
88tc (sold) but keeping an eye out.
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Sluggo Offline
Posting Freak
#5
Glenn, What temp do you turn it on? Also what * thermostat are you running?
Doug  
88 TC / T5,4.56,Log,SC60,NPR,2277,MegaSquirt
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Glenn 88TC Offline
Posting Freak
#6
I'm turning mine on(both fans together) around 180. I run a 180&deg thermostat.
NO TC and NO headaches.
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JLockhart Offline
Member
#7
I think it's a good idea to run the fans directly off the battery, since the stock wiring is marginal to keep up with with all the electrical power these cars demand (unless you've done a 3G upgrade and replaced the wiring as per Jeff K's instructions on this site). I run the main fan using a thermostatic switch I purchased at Autozone for $16 about 8 years ago. I have not had a lick of trouble with it. The computer is still controlling the smaller fan.
87 TC, T5, t3/t4, alky spray, 3" exhaust. 13.65 @ 102.75 on radials
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Keith Nubel Offline
Posting Freak
#8
Sorry about hijacking the thread. Glenn, I have a dual fan set up on my 85 and wanted to add a temp control on the second fan. The question is, where is the best place to sense the temperature? I cycle the 2nd fan with an head pressure switch for the AC.
1985 TC
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Glenn 88TC Offline
Posting Freak
#9
Quote:Originally posted by Keith Nubel:
Sorry about hijacking the thread. Glenn, I have a dual fan set up on my 85 and wanted to add a temp control on the second fan. The question is, where is the best place to sense the temperature? I cycle the 2nd fan with an head pressure switch for the AC.
I would go right at the t-stat housing if possible. I have mine in the rad inlet.
NO TC and NO headaches.
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HERBIE911 Offline
Junior Member
#10
im runnig dual fan setup also im using an adjustable units with relay to on them on , need to clean up the wireing thought
ask me if i gave a [email protected]&k!!!!!!!!
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