Electric fan anyone!
- Thread starter AlexExpy
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Thermo
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Alex, I am running a dual Derali 14" fan set up in my truck. I tossed the mechanical fan all together. Gained about 6 hp and 8 ft-lbs of torque across the whole RPM band. Makes a nice change.
As for a kit, I made my own. Granted, I am an electronics tech by trade, so, wiring is something I do all day long. So, I saved myself a few bucks. The big thing that I will tell you to avoid are the "wire wound" temperature controllers. While they are cheap and work great for the first year, after that, plan on having lots and lots of issues with them. Go with one of the electronic controllers that has a relay associated with it. Costs a few more dollars, but it will probably outlast the truck.
If you want any more info, let me know.
As for a kit, I made my own. Granted, I am an electronics tech by trade, so, wiring is something I do all day long. So, I saved myself a few bucks. The big thing that I will tell you to avoid are the "wire wound" temperature controllers. While they are cheap and work great for the first year, after that, plan on having lots and lots of issues with them. Go with one of the electronic controllers that has a relay associated with it. Costs a few more dollars, but it will probably outlast the truck.
If you want any more info, let me know.
This is what I'm talking about!
Did you take any pictures of your mod, it would be great to see how it fits in there.
What part number of the 14" dual Derale fans did you use?
Did you use a variable temp control or a fixed temp setting? Single or dual stage speed?
6 HP gain is good, but I think you're being conservative. I felt like 25 HP from my Butt dyno when I converted to electric fan on my E39 530I BMW.
walnuts4x4
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Thermo.... can you ball park how much "your" setup cost.... might have to order it when you are in Rochester....lol
mindgame
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Running dual 14" fans with dual separate controllers from Troyer performance.. Had it for 6+ years and only had to chang eone of the relays once so far... I also yanked out the clutch fan.. As for cost.. forgot exactly, but it maybe pricey for those on a budget...
Thermo
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Alex, 6hp gain is assuming that both fans are running. Obviously, if the fans are not running, then you gain just that much more. As for me setup, take a look in the attachments. As you see, it opens up the front of the engine very nicely and makes changing the serpentine belt super easy. Granted, accessing anything on the front of the engine is now super easy. I am running dual fully adjustable controllers. So, I can set the temps to whatever I want. In my case, I have the controllers set up about 5-10 degrees apart and I have indicating lights on the dash. I did this so I can keep an eye on how hard I am pushing the truck and if I need to take it a bit easier. I have never had both fans kick on for me other than the 1 time I was in Atlanta in 100F weather with the A/C blowing full blast and a module that decided it didn't want to play. Other than that, a single fan was all that I have ever needed.
Walnuts, If you want to do it when I am in Rochester, let me know. It isn't all that hard to do. Now, I did go a bit more on the expensive route as I spent about $300 on my setup. But then, I also routed the power through the factory fuse box (so no extra wires off of the battery) and I used dual controllers.
Walnuts, If you want to do it when I am in Rochester, let me know. It isn't all that hard to do. Now, I did go a bit more on the expensive route as I spent about $300 on my setup. But then, I also routed the power through the factory fuse box (so no extra wires off of the battery) and I used dual controllers.
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GAINMOB
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troyer for my year is about $500
Thermo
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Alex, why worry about a shroud. A shroud is good if you are using the mechanical fan. But, with the e-fans, as long as you make sure that the fans are spaced so they cover from side to side, then you are good. The other important thing is making sure that you have atleast 3,000 cfm of air (both fans running). Under that, you risk not being able to provide enough cooling under the worst of conditions. If you have a blown Expy, then going with 4,000 or even 5,000 cfm would be recommended based on your overall power.
mindgame
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Thermo, you're probably right forget the shroud. The aluminum shroud won't be any good since it's only an inch thick and not a cone shape like the OEM shroud, it may do more harm then good.
So, here is what I'm going to be getting.
1/ Two Derale 14" curved fans
2/ Two Derale variable temp setting control relay with thermo sensor stick inside the radiator fins.
Is there any thing else I've missed.
BTW Thermo, where is a good switched 12V to use? What did you do in this case? TIA.
Everything Thermo stated pretty much the same setup I have...
This is how my setup look like
Nice, very nice..Thanks for sharing.
Mine will soon looks like that except for the shinny intake.
Thermo
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Alex, honestly, I tapped right into the fuse box to a constant 12 VDC line. I wanted to avoid possibly overloading a switch contact inside the ignition switch. Also, you will find that letting the fans run for a few seconds (15-20 normally) will help with engine survivability as you will be preventing some of the water in the motor from having to try to cool some of the extremely hot components. Besides, it gives the truck a really clean look like you never had a mechanical fan installed in the truck since there are no extra wires laying anywhere. I also hid the controllers on top of the radiator, hidden by the plastic cap for the radiator.
Good points, straight from the battery it is for me too. I agree with letting the fan running a few minutes after the engine has been shut off is a good thing, the engine can get very hot on those Summer days.
ZuluBravoTango
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Great Setup
So I have some simpleton questions here. How do you hook the fans to the radiator? Could someone show a pic of the therm placement in the radiator fins? And finally what diameter/type of wiring do you suggest for putting all this together with? I have heard that you have to have at least 3k cfm to do a sufficient job. Does this jive with what you believe? Thanks all.
So I have some simpleton questions here. How do you hook the fans to the radiator? Could someone show a pic of the therm placement in the radiator fins? And finally what diameter/type of wiring do you suggest for putting all this together with? I have heard that you have to have at least 3k cfm to do a sufficient job. Does this jive with what you believe? Thanks all.
ZuluBravoTango
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Oh wow, check this out: http://www.amazon.com/PROCOMP-ELECTRIC-DERALE-THERMOSTAT-16739/dp/B003WYVRL2/ref=sr_1_1?s=automotive&ie=UTF8&qid=1327861707&sr=1-1
How bout that???
How bout that???
walnuts4x4
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might have to look into this...
ZuluBravoTango
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Well, I ordered the Procomp electronics setup... should be here in 3-5 days and I will take some pics of the install... we will see, couldnt pass the price...
It was $73.95 out the door for the whole set up, 2 fans, thermo and all wiring and attachment hardware.
It was $73.95 out the door for the whole set up, 2 fans, thermo and all wiring and attachment hardware.
Last edited:
Well, I ordered the Procomp electronics setup... should be here in 3-5 days and I will take some pics of the install... we will see, couldnt pass the price...
It was $73.95 out the door for the whole set up, 2 fans, thermo and all wiring and attachment hardware.
You're lucky bastard!
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