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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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  #41  
Old 02-07-2012, 02:25 PM
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Quote:
Originally Posted by 2010 ram View Post
so do anyone have this on there 09 + hemi. if so is it working good and where did you plug the fan in at?
Yeh there are several folks using it and it just plugs into the same plug the electric fan that you already have does.
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  #42  
Old 02-07-2012, 05:52 PM
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Does anyone have numbers yet on the stock efan compared to the new efan as far as power draw?
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  #43  
Old 02-11-2012, 10:48 AM
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not sure on stock mech or electric fan cfm, I run a Ford taurus fan ($25 at pick an pull), I've had it for 4 1/2 years and about 150k miles with no failures to report.. here is some info:

Considered to be the most powerful electric fan you can use from either OEM or the aftermarket. It is a Ford 8C607 fan and is advertised as having 2500 CFM on low speed and 4500 CFM on high by most sources. It comes in the 90 to 95 Ford Taurus and Lincoln Mark VIII with the 3.8 litre engine. Is very popular with the Hot Rod and Muscle crowd as well as used in Offroad buggies etc.


The Mark VIII fan has 2 speeds - 3 wires. The outboard black lead (uppermost pin on the motor if you do not have the pigtail) is the ground (negative). The blue lead (lowermost pin on the motor) was used to activate the fan when the AC was turned on (positive). The center lead (also positive) is black. It was activated by engine temp. I understand that using the black/black combo will give you a higher fan speed than the black/blue combo.

3 Leads; 2 are positive (+) leads and 1 is a ground lead.

Lead functions in stock application:

-BLACK Outboard black lead is a GROUND.

+BLACK Center lead is a POSITIVE lead...actuates fan on engine temp.

+BLUE Outboard lead is a POSITIVE lead..actuates fan w/ aircon.

================================================== =
The Taurus fan is a 17" diameter fan and the MarkVIII is an 18" fan. They share the same motors, and the shrouds are different. The Taurus fan has an angled edge and the MarkVIII is a rectangle shroud.

MarkVIII
1993-96 #F3LY8C607A low speed 1100RPM high speed 1850

1997 #F7LZ8C607AB
1998 #F8LZ8C607AA low speed for 97/98 1800RPM high speed 2225

================================================== =
The Taurus, T-Bird, and Lincoln e-fans all use the same motor. The only difference is the blade size - 16, 16.5, 17, 17.5, and 18-inch fans and each have the same three wire configuration.

On the newer fans, you might thing you have a problem if you just apply power to each of the Black wires. On the newer fans, the low speed wire is connected to the side of the plastic housing and the second is the high-speed wire. The speed of the newer model fans is controlled 100% by the EMC. The ECM modulates the voltage to the high speed wire and this gives the e-fan its variable speeds. This give the ECM full control of the e-fan from whisper quit to full power for max-cooling. The ECM modulates the water temperature for best performance and fuel economy for the engine.
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  #44  
Old 02-11-2012, 10:53 AM
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an I'm only running on the low speed connection..I do drag race and tow a boat...
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  #45  
Old 02-11-2012, 10:57 AM
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on another note..I am seriously considering the v6 efan because i love that shroud and the stock configuration...would love to get a cleaner look in engine bay..
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  #46  
Old 02-11-2012, 10:23 PM
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This V6 fan looks pretty good, I might have to try it myself. My worry is the summer heat, since there isn't a tuner for 2011+ to change the fan switch temp will the stock ECU activate the fan in time to keep the engine in the same cooling range?

Do I need the spanner wrench to get the fan loose?
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Last edited by jmr; 02-11-2012 at 10:30 PM.
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  #47  
Old 02-11-2012, 11:34 PM
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Quote:
will the stock ECU activate the fan in time to keep the engine in the same cooling range?
Stock setting it is supposed to come on at 222 deg. If you have a 180 tstat then you'd probably be ok, but not with stock tstat.

I didn't need any special tools, just actually used a crescent wrench.
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  #48  
Old 02-14-2012, 10:27 AM
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So how does the V6 fan work on the 2011+ Hemi with stock thermostat?
Has anyone noticed a rise in temp?
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  #49  
Old 02-14-2012, 03:58 PM
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Dose anyone know yet if the MPG got any better? Or is there any notciable performance gains out of doing this?
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  #50  
Old 02-14-2012, 04:00 PM
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I noticed a slight increase in city mpg (very slight) and a very slight throttle response increase at low throttle/cruising times.

Just by theory it should improve both, you are removing weight that the engine must turn. Most say removing a mechanical clutch fan is worth ~10hp.
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