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Custom Dodge Ram Performance Mods - Engine - 5.7 HEMI V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 5.7-liter HEMI® V8 engine - 390 horsepower, 407 lb-ft of torque.


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  #1  
Old 05-29-2012, 12:47 AM
Ram2300 Ram2300 is offline
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Default Is it better to get an efan or a dual electric fan?

A few people told me that a dual electric fan works better on the engine compared to a single electric fan (Efan) because the duals cover the whole radiator versus the single only covers the middle part of the fan? Any suggestions on what I should do on the modification?
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Old 05-29-2012, 08:23 AM
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As long as it's shrouded properly a single fan works just as well as a dual, and maybe even better as it probably covers more of the radiator. The benefit of a dual fan setup is that if one fails you have the other and won't overheat. I'd go with a single as it's typically about half the cost...

Also, your truck has an electric fan(in addition to the mechanical clutch fan) stock that provides plenty of cooling.
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Old 05-30-2012, 10:49 PM
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Agreed with what snrusnak said. The big factor that oem's used to decide dual vs. single fan was radiator shape. Most dual fans are used on rectangular shaped radiators. Our ram radiator is fairly square which can be adequately cooled with a single large diameter fan. Dual fans would still leave dead spots they would need to be offset [oo] vs. [O]. My crude diagram prevents me from showing how the dual fans need to be offset from each other which would also leave you with coverage issues. The other driver for large single is cost and simplicity for the electrical wiring and load.
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Old 05-31-2012, 10:19 PM
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So Efan is the way to go then? How much is the Efan?
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Old 05-31-2012, 10:24 PM
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Like I said above:

Quote:
Also, your truck has an electric fan(in addition to the mechanical clutch fan) stock that provides plenty of cooling.
Since you have a 2011, there is no tuning available. So it wouldn't be wise to remove the stock clutch fan and rely on an electric fan that you can't control(unless you setup an aftermarket controller).
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Old 05-31-2012, 10:55 PM
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Why mess with it anyway unless your truck runs hot...then the dealer needs to be involved.
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Old 05-31-2012, 11:06 PM
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efan prices vary..I run a pick n pull taurus efan..$25.00... i think new ones ar $180+
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Old 06-03-2012, 01:13 AM
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The reason why I ask about the Efan or dual fan is because I was told that the engine runs better, less strain on the cam and pullies, better rpm's and gives u like 1-2 mpg better, somethin like 5-10 hp better and like 5 tq but I have never done it before so I rather have some opinions on it before I waste my money or what not.
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Old 06-03-2012, 09:36 AM
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Quote:
Like I said above:

Quote:
Also, your truck has an electric fan(in addition to the mechanical clutch fan) stock that provides plenty of cooling.
Since you have a 2011, there is no tuning available. So it wouldn't be wise to remove the stock clutch fan and rely on an electric fan that you can't control(unless you setup an aftermarket controller).
Reread the posts above man. You already have an electric fan on your truck.
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Old 06-03-2012, 10:32 AM
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Install a 180 tstat and ditch your clutch fan, you don't need it...especially with a 180 tstat. You will never learn anthing unless you try it first hand. Auto tech is where it is today because of people like you who experimented with what they beleived may benifit performance. Take the plunge and enjoy the experience. These guys that recomend not to are stuck in first gear...no offense meant.
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