Has anybody done the electric fan conversion from the clutch Style? Does it actually make any difference in power? If so which get did you use or what the did you need to do the project? Probably could have researched it more but what the hell I'm feeling kind of lazy today LOL

That answer varies between what year truck you have. 2000-2004 have an electric fan already that makes life easy, 97-99 do not

I've done a number of conversions over the years and have found that available power increases a small but noticeable amount, and fuel efficiency increases a very small amount. Air conditioning performance shows a huge performance increase, particularly at idle on very hot days. My preference for fans are a pair of Permacool high performance fans. I've not done this specifically on a Dakota so can't make specific recommendations.

You'll want to build a shroud that holds the fans about 2 inches off the back of the radiator, and the shroud will need to cover the entire face of the radiator. Further, it will need to seal against the radiator so that the fans can only draw through the radiator. A box design is the simplest. You will need a pair of fans, selecting the largest that will fit as you want the back of the shroud to be as open as possible while being tight against the blades. Given a choice between a pair of 10s or a pair of 12s with the same airflow, for example, choose the larger that will fit to the shroud. Both fans will need to be mounted so that the blades are so the blades are on the outside of the shroud, and a ring will need to be placed that cover the blade's edge. The rings need to be 1/2 to 1 inch in diameter larger than the blade diameter. The idea behind all this is to have as much room for air to flow through the radiator and out the fan blade openings as possible, while preventing the fans from being able to pull air from anywhere other than through the radiator. As air will always take the path of least resistance, if there are openings that will let air through easier than through the thin openings between the fins of the radiator, that is where the air will flow through from. And, without the rings around the blades, the fans will actually form a torus that will form an air doughnut around the blades. The shroud and ring prevent this, forcing the fan to only draw air from one side of the shroud to the other, and sealing the shroud to the back of the radiator and enclosing the entire back of the radiator will force the air to only come through the radiator. And, the 2 inch setoff means the fans are able to pull air across the entire radiator. Put the fans too close to the radiator and the air will find it easier to move through directly in front of the fan blades, and this will mean you're only pulling air through a small part of the radiator. If the fan opening only covers 60 percent of the rad, such a setup means you effectively have 60 percent of the radiator doing any cooling. The further back you can put the fans the better, but 2 inches is the minimum I recommend.

If this sound too complicated, you can also look into using a Ford Taurus 3.8L dual speed electric fan. I have no direct experience with these fans as I've not used one before. These fans are extremely powerful, and have been used successfully on supercharged engines with tight engine bays. The only downside to the Ford fan is you must use the correct controller for them. Use of the wrong controller will burn the Ford fan out.

When possible I prefer using the ECM to control the fans. The ECM is the best method because it can intelligently control the fans when the air conditioning is on. The ECM can keep the fans off when the AC is on and you are at a high enough speed, turning them on at speed only when head pressure is too high. If you are able to use the ECM I can provide you with a relay wiring diagram that will use the low and high temp ECM control wires to run the fans in a series/parallel configuration like GM does. What this does is run both fans any time the ECM calls for cooling. When on low it will run the fans in series which runs both at half speed, sufficient for most situations but very quiet. When more cooling is needed it switches them to parallel, which runs the fans at full speed. Much louder, but also max cooling. When using the ECM is not possible I like Delta Current Control units. The FK95 is what I would suggest for a pair of Permacools. For the Ford fan mentioned above I would not attempt to use the ECM, and would only use a DCC Ford fan controller to run them.

Also, as fans are high draw items, I'd wire everything up using fused 10ga wire directly to the battery, and use high amperage relays to let the ECM control them. The DCC units are high amperage devices and can be used directly, but I'd still put a fuse between the controller and battery.

i am running a 16 inch fan on radiator and have an 8 inch as back up wired to a switch as back up..as for better mpg i couldnt say my truck is bipolar .but throttle response improved..just make sure quality relays and wire...if it helps for a switched power sorce i used the power window fuze cense i dont have them

If you have 2 fans, put a divider between them so each fan is forced to pull across its portion of the core... otherwise they fight each other and end result is lower overall CFM.

https://www.cumminsforum.com/threads...amber.1706266/