Does anybody have electric fans on their 3rd Gens yet? I cant find any specifically designed for a 3rd Gen, but I am think of buying a 2nd Gen kit from flex-a-lite and modify it to work unless someone says it is impossible to do because of this or that. What do ya'll think.

 

I'm also curious. Anybody know if the Flex-a-Lite will perform as well as the factory belt driven fan while towing?

 

I checked them out when my fan clutch went, would of been cheaper than a clutch but it didn't have the cooling capacity. Especially if you were towing, if I remember right they were talking about making one for our trucks but don't quote me on that. Curious how much hp that would free up.

 

When I cotacted flex lite they told me the have no plans for a fan for 3rd gens dodges. And the 2nd gen will not be enough for a 3rd gen.

 

i dont think it would be hard to make a setup i have seen them on sled pullers, but the concern would be if you want to stare at the check engine light all the time. the fan clutch is monitored and electrically locked up by the ecm

 

That's probably because they only use them for short durations during a pull. I seriously doubt you could find an electric fan capable of keeping it cool while towing. That would have to be one big electric motor to equal the cooling power of the stock fan driven by the Cummins!

 

Ok, here you go guys,, straight from the fellows at flex a lite. They have a fan for the 3rd gen,, but they are working on a box for the ecm. If you take off the factory fan the ecm sees that there isnt a fan and puts the truck into a limp mode. They hope to have something figured out soon. The new fan has well over 5500 cfm, plenty of cooling. They will be making big announcements as soon as they have this issue figured out

Kevin

 

I don't know if I really trust Flexalite's CFM ratings. Haven't they always been known for way over-rating their fans?

When you look at the huge blades and steep pitch of the stocker, it's hard to imagine any electric fan could push that much air (at least one that would fit in the truck ). Who's gonna be the guinea pig?

 

Least not forget that the current (stock) set up disturbs the air after it has been through the radiators/ intercooler and the electric fans disturb the air before it gets to the radiator /intercooler. That said, if all else is equal the stock set up is far more efficient unless the electric fan set up is putting out a bucket load more air that the original fan, and I seriously doubt that.

 

what is the cfm rating on the stock fan? i think that there is a an aftermarket electric fan or fans out there that can out flow the stocker but it is a matter of finding it and tieing it into the electrical fan controller. i have used Flex A Lites fans before on most of my high performance vehicles and have had nothing but success with there fans

 

not going to say if electrical fans are better then the stocker but i did read on flex- lites if you tow more then 18000 gvw then not to use them.

 

When they get the ecm issue figured out I am going to run one, I will report at that time

Kevin

 

I would really like to know the cfm of the stock fan and how restrictive it is unless it is running. A electric fan will free wheel when not engaged but the stock one with the fluid coupler can't really free wheel so it's not letting the air flow through unless it's engaged. I can see how the pullers and racers would want a electric not just because of hp loss but because it's not pushing air out the front because it's dosen't let the air through unless full engaged.

 

The stock fan is not restrictive at all. It still spins when not engaged, which is better than freewheeling. It's also behind the radiator so it doesn't really matter.

 

Have you ever noticed how much air is flowing trough the radiator when your at idle? Must be why the fan clutch engages to keep the ac condencer working. With a fluid coupler you aren't going to spin fast enough to keep up with the air flow from forward motion hence the restiction. If you ever moniter the IAT the hotter the motor the hoter the IAT not because of the turbo or the temps would drop off every time there was no boost. The turbo does increase the temp when the boost increases. It's the radiator heating up the intercooler because there is no air flow throught it. Must be why there a big gap between the inter cooler and the radiator to let some of the air get through, because the radiator fan isn't pulling it through the intercooler.