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#927272 - 04/10/12 03:23 AM Electric fan controls  
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MY FYN 79 Offline
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Now that I wont have an ECM in my car anymore, time to figure out a new way to control the fans.

I was looking at the various VSC models out there, and also saw handfuls of people with complaints of them going bad. I have Ramcharger fans with the harness setup that came with them years back. With that harness already being fused and having relays, would the VSC be less prone to failing? Or can someone recommend a reasonably priced sender that turns on around 200 and shuts off around 185?

The VSC I was considering is the "beefier" 40 amp Flex a lite unit. 33054 IIRC.

Much thanks.


~Jeremy~
79 Monte - Sold 5-11-13
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#927307 - 04/10/12 12:02 PM Re: Electric fan controls [Re: MY FYN 79]  
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Oh SNAP! I'm a Vet! Stuff for Sale
#927671 - 04/12/12 01:08 PM Re: Electric fan controls [Re: kubihibi]  
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No likey?



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#927684 - 04/12/12 03:41 PM Re: Electric fan controls [Re: kubihibi]  
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SSScottSS Offline
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I'm using the SPAL controller. They are kind of expensive, but I liked the fact that they have multiple speeds and they are programmable. I'm using them with the Ramcharger fans

http://www.spalusa.com/store/Main.aspx?html=pwmv3

Last edited by SSScottSS; 04/12/12 03:42 PM.

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#927686 - 04/12/12 04:06 PM Re: Electric fan controls [Re: SSScottSS]  
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#927880 - 04/14/12 01:03 AM Re: Electric fan controls [Re: kubihibi]  
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Originally Posted By: kubihibi
No likey?


Just weighing the options. Heard a lot of conflicting stories using them with relays etc.

Scott, are you using the Ramcharger harness?


~Jeremy~
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#927920 - 04/14/12 03:48 PM Re: Electric fan controls [Re: MY FYN 79]  
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#927935 - 04/14/12 07:27 PM Re: Electric fan controls [Re: Hey-O]  
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I gotta say Ulli, thats a pretty slick setup.

Which fans are you running it with?


~Jeremy~
79 Monte - Sold 5-11-13
Welcome Natalee Mae 3-16-12
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#927937 - 04/14/12 07:46 PM Re: Electric fan controls [Re: Hey-O]  
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Originally Posted By: Hey-O


Do you have a pic of it mounted along with the fans? That system looks good right there.

#927955 - 04/14/12 11:12 PM Re: Electric fan controls [Re: Tony_SS]  
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Jeremy ,
The fans came with the Radiator I bought . Itís made by Champion . Iím sure theyíre nothing fancy or expensive .
Shroud extra
http://www.ebay.com/itm/1980-1981-1982-1...ies&vxp=mtr




[/quote]

The fan control works pretty neat . Quality , adjustable and ease of installation caught my eye . The less you pay , the less features you get . I looked for a while before I chose this one . After this price range you were spending money with little , if any gain Ö. IMO . Thereís always the thought of problems with electric fans over mechanical . I think I got it right . Weíll see Ö. LOL .

Tony ,
This is picture when I was installing it and testing it . None of the wiring was permanent in this picture , but you get the idea .








... " HEY - O " ... LET THE HORSES RUN

#927975 - 04/15/12 01:58 AM Re: Electric fan controls [Re: Hey-O]  
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So all you had for wiring was the plugs off the fans in the picture and the Jegs controller?


~Jeremy~
79 Monte - Sold 5-11-13
Welcome Natalee Mae 3-16-12
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#927989 - 04/15/12 03:52 AM Re: Electric fan controls [Re: MY FYN 79]  
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While looking up some other things on Amazon, I saw that Hayden makes a bunch of controllers for a pretty decent price too. $46 gets you an adjustable controller, radiator probe, and two 30-amp relays and wiring. My Flexalite VSC is inconsistent, so I might give this one a try.

Last edited by baaboo; 04/15/12 03:53 AM.

1987 Aerocoupe, 383 Super Ram and 20-gallon custom aluminum tank. Car retired (for now) from open road racing, but I'm not.
#928006 - 04/15/12 12:59 PM Re: Electric fan controls [Re: baaboo]  
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What feature makes these newer "fancier" controllers more prone to fail? I could be wrong, but my guess would be the controllers that try to vary the speed. Thats what makes the Jegs one Ulli posted kinda tempting, although my preference is still to have the probe "wet".

TBH, for many years I used one of these cheap Flex A Lite controllers with 100% success.



My only gripe was that the model I had put the probe in the upper radiator hose, which was kinda hokey. If they made a controller like the above picture that used a thread in sender, I'd be all over it. The advantage I have is that the Ramcharger harness on the car already has relays and is fused etc.


~Jeremy~
79 Monte - Sold 5-11-13
Welcome Natalee Mae 3-16-12
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#928013 - 04/15/12 02:14 PM Re: Electric fan controls [Re: MY FYN 79]  
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I cut the plugs off the fan and hard wired with supplied wires that came with the control unit . The controller came with everything needed to do the job . The only thing I was on the fence about was the dry sender . I was thinking it might not read as accurate as the wet . It ready doesnít matter . When you set it to come on , thatís when it will come on regardless if itís 185 or really 182 . Iíve only put a few hundred miles on the car , so I canít say itís the best or if longevity is there or not . The thing I was looking for was a complete unit . I wasnít interested in adding this or changing that . This it a plug and go unit . So far it works as advertised . I havenít tried the A/C , to see if it over rides and kicks on the fans , I will admit that . They make a bunch of different types and styles . I was starting to over think the whole thing . Like I said , I hope I did the right thing Ö.


... " HEY - O " ... LET THE HORSES RUN

#928072 - 04/16/12 12:20 AM Re: Electric fan controls [Re: Hey-O]  
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I still wonder if my issues came from the radiator probe as opposed to the direct water contact.


1987 Aerocoupe, 383 Super Ram and 20-gallon custom aluminum tank. Car retired (for now) from open road racing, but I'm not.
#928081 - 04/16/12 12:47 AM Re: Electric fan controls [Re: baaboo]  
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Bob ,
I was up in the air over which sender style to buy . I donít think the probe you have or my dry sender ring are really any different , there not in the water . I bought a radiator cap with a temperature gauge in it which I use when Iím watching or working on it to monitor the temp . itís pretty accurate . I watched the fans kick on several times at a very consistent 180 degrees . The second at 190 . Iím now using a 160 thermostat , down from 190 , 180 and 170 . Trying to find that sweet spot . You need to set them 5 to 10 over your thermostat or the fans wonít shut off .


... " HEY - O " ... LET THE HORSES RUN

#928092 - 04/16/12 01:37 AM Re: Electric fan controls [Re: Hey-O]  
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I think the probes are pretty old tech. I like that the Jegs one is electric. Seems more accurate/durable for a long term solution to me.

Ulli, do these fans stay on after the car is shut off, or is the unit wired into an accy hook up?

#928123 - 04/16/12 05:37 AM Re: Electric fan controls [Re: Tony_SS]  
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Key off , fan off .


... " HEY - O " ... LET THE HORSES RUN

#934466 - 06/03/12 07:49 PM Re: Electric fan controls [Re: MY FYN 79]  
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Originally Posted By: MY FYN 79
Originally Posted By: kubihibi
No likey?


Just weighing the options. Heard a lot of conflicting stories using them with relays etc.

Scott, are you using the Ramcharger harness?


Sorry for the late reply. I cut the Ramcharger plugs/harness off the fans and used some bullet connectors.


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#934589 - 06/04/12 03:57 PM Re: Electric fan controls [Re: SSScottSS]  
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#934636 - 06/04/12 11:34 PM Re: Electric fan controls [Re: SickSpeedMonte]  
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I've used the jegs ones for several user, no failure. I have a manual override switch in case of failure.




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#934641 - 06/04/12 11:50 PM Re: Electric fan controls [Re: jaywos]  
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window unit AC's have used air based temp probes for years without issue. It was never the probe that failed with the people I saw having issues, it was always the temp adjustment rheostat or some other under designed part(wiring too small for amp load).


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#934651 - 06/05/12 12:49 AM Re: Electric fan controls [Re: Gruvin]  
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I personally would stay away from the variable speed controllers, speficially the DC Controls and SPAL units. The DC Controls unit was pretty unimpressive quality wise and died after driving in a light rain. I originally went with them after reading great reviews over on ProTouring, but they were a very Mickey Mouse operation from my experience. Tried the SPAL V1 or V2 (can't recall) and it died after a short while running a weak Dodge Caravan fan. I was partially covered and decided to upgrade to the new (at the time) V3 model from SPAL that was supposed to be vastly improved; upgraded the fan to a Mark VIII at the same time. That unit got stuck in the on position and would never turn off. I got another SPAL replacement and it simply wouldn't run the hungry Mark VIII fan (kept popping the fuse IIRC) so I gave up on aftermarket controllers and built my own harness. I use a Hayden probe style controller for my low speed (identical to the Flex-A-Lite you pictured above) as I wanted something adjustable to dial it in and a Grand National thread in switch for the high speed. I would have preferred to use a thread in wet switch for low as well, but aftermarket is the only option and I didn't want to try several different ones to get the sweet spot... not to mention aftermarket parts around here are all special order (I bought a spare Hayden controller for this reason). I have the probe mounted in the rad fins FWIW; it's ugly, but hidden by the fan shroud.


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#934663 - 06/05/12 01:55 AM Re: Electric fan controls [Re: 85_SS]  
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Im running a SPAL v3 with an Autometer temp sending unit, 96 Intrepid fans, and a couple of relays. Its been a year or two and works well. I have a thread on my troubles using their temp sensor at first. After switching over to the Autometer sensor and manually setting the high and low its been fine.

#934695 - 06/05/12 12:01 PM Re: Electric fan controls [Re: SickSpeedMonte]  
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Ulli,
Did you test your efan control unit anymore? I just read the install instructions. Did you run a wire to the starter post? I was thinking maybe I could run that wire to the battery instead?


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