FX45 electric fan conversion

I look forward to doing this soon, but Unichip first for me.

Joe, did you get the same Dakota digital controller too?
 
Sure did, not very confident with wiring it all myself so I choose to wait and have it all installed with the Pulley when they were produced, dang has it really been 3 months already? lol...
 
Just so everyone knows I've driven my car for hours and never 1 issue with my eBay fan.

Temp is steady as OEM belt driven fan.

Programming the controller did take some time on when to turn on/off at what temp and driving speed.
 
Got the parts all in next week hopefully I can get this puppy installed. FX needs to lose some weight.


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Nice Chris! This conversion is next on my list. Not sure about losing the weight part though. Unless the OEM fan is that much heaver than the dual electric ones.
 
AeroBFA said:
Nice Chris! This conversion is next on my list. Not sure about losing the weight part though. Unless the OEM fan is that much heaver than the dual electric ones.
Click to expand...

It is. Dual fans are plastic, single fan is plastic but the part that attaches to the belt feels like its made of lead.

I put a lot more miles on my car and not once any temp issue.
 
Here are fan specs you will want to program into the Dakota Digital, use at your own risk. I've had mine running for a long time now, never any issues.

We also found out that it will be a good time to swap your battery and alternator, since it will tax them both more. I recommend a hi-output alternator and optima battery (red or yellow, I have yellow).

FX45's aux fan ECM (ECU) control:

1. The aux fan starts at full speed when the coolant temperature reaches 203F or anytime the A/C is on and the compressor loads up and the vehicle speed is below 25 or 50mph (see 2 & 3 below).

2. The fan shuts down when the coolant temp drops to 201F or the vehicle speed exceeds 25mph (adequate air flow across the radiator) and the coolant temp is between 203 and 220F).

3. If the coolant temp is above 221 F and/or the AC is on with the refrigerant pressure > 226.2 psi, both fans will stay on regardless of speed.

4. Both e-fans will be off below 25mph if the coolant temp is below 203F and the AC is on or off with the refrigerant pressure < 226.2 psi.


Thermostat
Valve opening temperature: 80 - 84°C (176 - 183° F)
Full-open lift amount: More than 10 mm/ 95°C (0.39 in/ 203 °F)
Valve closing temperature: 77°C (171°F) or higher
 
Ed, thanks for compiling the list of items to purchase. I just purchased all of the items needed to be done for this conversion. I have been reading random forums about these conversions and I read one post where you can either raise or lower the temperature settings for increased performance? Know anything of this?
 
AeroBFA said:
Ed, thanks for compiling the list of items to purchase. I just purchased all of the items needed to be done for this conversion. I have been reading random forums about these conversions and I read one post where you can either raise or lower the temperature settings for increased performance? Know anything of this?
Click to expand...

What are your findings?

Are you talking about different thermostats to open at different temperatures?
 
No, I don't remember the specifics. I think it was more about the setting the digital controller to turn on at 200 degrees as opposed to 160 or something like this. I going through and searching for more info now.
 
Higher operating temperature? Interesting, I thought that would lose horsepower and also possibly get close to overheating your engine block.

I kept my parameters the same as OEM.
 
First sorry, I couldn't get I'm experience with eFan on here sooner. But, like Ed said i would highly suggest a higher amp alternator.

The issues I was have was that my thermostat went kaput although it was less then a year it was replaced. Then my alternator and battery had issues, which just could be to age and wear. I notice huge difference with the eFan now that everything is working as it should.


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Wow, Chris you just get the e-fan done recently? That was another question I was going to ask. Is running the OEM alternator okay, as its never mentioned in this thread. Maybe it could be the age of your alternator too and are you running other electronics too?
 
He's just getting ready for an 24" LED flip down panel, 1000 watts amp and sub. Seriously, I highly doubt an high output alternator is needed for the running e-fan.
 
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