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Electric Fans On Hd

Stranger ranger

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Stranger ranger Enthusiast

Stranger ranger

Posted
Posted

I've been pondering now for a bit to go with the bigger 34" radiator and electric fans on my 06 hd but have a few quetions.

I tried searching but nothing really came up for doing this on an hd. I have been told here and there that they come with clutch fans because when towing, they provide better cooling and the electric fans came on half tons to help with fuel economy and really are not made for towing applications. I don't tow a lot, but I'd say twice a month and its nothing over 12K, total gross, (truck and trailer with w/e I'm hauling), its just a jeep I pull, maybe a full size f250 (1982) once and a while, but I would rather not overheat the motor when pulling with electric fans.

 

Is any of the above true or not? Could I swap over to the e fans with the bigger rad and be fine or should I keep the stock clutch fan?

 

I"m just trying to squeeze every bit of power and fuel mileage i can out of this motor, very difficult task lol.

any input will be appreciated

thanks.

masterp2 Enthusiast

masterp2

Posted
Posted

I don't think you would ever see a payback, but you could do it with your gas motor. I doubt you would overheat.

 

The dmax is another story.

Silverado4x4 Senior Enthusiast

Silverado4x4

Posted
Posted

Changing to a electric fans will give you nothing as the stock fan is free spinning until the motor needs the fan then the clutch engages and they move ALOT of air when the clutch is engaged.

masterp2 Enthusiast

masterp2

Posted
Posted

The fan is in viscous slip 100% of the time, the degree of slip is regulated by the clutch. It is spinning at all times, and this is particularly expensive at idle, stopped. At higher speeds there is very little parasitic action, because of the kinetic airflow over it.

 

FWIW.

 

No payback comes as a result of no real savings. There are placebo stories flying around the planet on this, but reality does not change.

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