Electric fan controllers

98hemi-ram · Jul 5, 2013

What is everyone running for electric fan controllers? I'm in need of one for my dual 14" fans. The derale #16789 controller I bought has turned out to be junk and does not work at all! So looking for suggestions on a new one.

dragracer · Jul 5, 2013

Look into Painless Wiring. I ran a kit that used a sensor mounted in coolant. If you have a place to mount it in the intake or other coolant passages. I liked this better than a controller. They have 180 or 195 temps. Switch opens at whichever one you get. Will see if i can find part #

Rich

98hemi-ram · Jul 5, 2013

Awesome thanks! I've heard of painless before but never even thought of them for this. I already have an adapter piece mounted in my upper rad hose with a 3/8" NPT threads. I prefer the sensor to actually be in the coolant as well seems like a much more accurate way of reading the temp to me.

dragracer · Jul 6, 2013

Painless Performance: Fan Relay w/thermostatic switch 185 degrees On/175 degrees Off

I assume you already have it wired up. So you could just get the switch to replace your controller. Or get one of the painless controllers.

I like the thermo switch better. Turns fans on at a preset temp. As long as you can find a place to mount it. Some aftermarket radiators have a port for one. Having the switch in the block/intake before it runs thru radiator is better because youre getting an accurate temp of the coolant in the MOTOR. Either way will work. Most controllers have a probe that slides in the hose. Just remember 195 in the radiator isnt 195 in the block.

Had good luck with these. Couple of my buddies have used flexalite controllers with decent results too.

Just remember to use correct rated relays. And use one relay for each fan.

If a fan is rated say 20 or 25 amps it will draw considerably more on start up.

Just my 2 cents.

If you dont have a build thread of your truck, post some pics. Would like to see the hemi in the gen 2. Im new to this forum, but not to automobiles and building them. Always like to see beyond the norm. :insane:

98hemi-ram · Jul 6, 2013

Thanks for the help man. I'm still fairly new on this site as well I did start a build thread for my truck here though

http://www.ramforum.com/f61/98_ram_hemi_swap-33498/

I've got a way more detailed thread on another forum that has been ongoing since I started the swap in February. (Not sure if this site will let me post the link but ill try it)

http://www.dodgetalk.com/forums/showthread.php?t=367796

98hemi-ram · Jul 6, 2013

Wow those painless kits aren't cheap!! I'm looking at going with this flex-a-lite kit now. I've read some good reviews on this one and its about $100 cheaper than painless.

http://m.summitracing.com/parts/flx-31163/media

Just need to see about getting my money back for this piece of crap derale controller now! Lol

ParrotHead FA · Jul 8, 2013

I simply use a 50 amp toggle switch mounted inside my truck for my supplemental electric fans. However, my tune and setup is based around a 130-135 degree target operating temp, with no thermostat, so I need the fans running all the time when I'm driving slowly or idling to keep my temps in that range. I simply use the switch to turn the fans off at highway speeds when they aren't needed, and switch them back on when I'm doing stop and go or city driving, or off roading, when I need them to keep the temperature from spiking. I have one fan on the radiator/transmission cooler, and one on the aftermarket oil cooler. I have them rigged on the ignition circuit so that when the switch is left in the on position, the fans will start when the engine is started and turn off when you shut off the engine.

NRA4ever · Mar 2, 2015

I ran a pair of Troyer Performance 16 inch fans on a F150. His controllers worked great. I found a set of 14 inch Flexilites today at a u pullit yard. Paid $12.00 for them & they look new. The Troyer controllers went into the radiator fins. I set one for 185 & the other at 195. I also hooked the one in front of my compressor to come on with the ac. That truck would freeze you on hot summer days.I'll check Summit for the Flexitite controllers

rowdyram · Mar 2, 2015

I've installed these and they seem to work well

http://m.summitracing.com/parts/der-16749

crazzywolfie · Mar 3, 2015

rowdyram said:
I've installed these and they seem to work well

http://m.summitracing.com/parts/der-16749

i learned from my last fan controller that ones with replaceable relays equals the possibility of water getting in. i know because i walked out to my truck 1 day an found the fans running when the truck was not and they should not have been.

jbmobbs · Mar 3, 2015

crazzywolfie said:
i learned from my last fan controller that ones with replaceable relays equals the possibility of water getting in. i know because i walked out to my truck 1 day an found the fans running when the truck was not and they should not have been.

That's why you hook them up to a key on power source lol

crazzywolfie · Mar 3, 2015

jbmobbs said:
That's why you hook them up to a key on power source lol

the fan controller was only setup to come on when the key was on. that is how i know the thing was toast.

NRA4ever · Mar 24, 2015

I am getting the Haden controler from summit. It has the relays for the ac & controls both fans

Electric fan controllers

98hemi-ram

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dragracer

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98hemi-ram

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dragracer

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98hemi-ram

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98hemi-ram

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ParrotHead FA

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NRA4ever

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rowdyram

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crazzywolfie

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jbmobbs

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crazzywolfie

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NRA4ever

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