electric cooling fan

[linuxman2003]

The mechanical fan pulls that much? damn I knew they moved some air but sheesh...

 

[AgPete139]

Not conerning the e-fan...but what is a better radiator for the 2 row 4.0?

 

[hmiwb]

two fans?

I was just snooping around under the hood of my new 2009 2.3 Ranger and happened to notice that there are 2 cooling fans! I've never seen an arrangement quite like it. There's an electric fan right behind the radiator that you can barely see and the regular clutch fan mounted on the engine. It doesn't seem like the most efficient set up, but if it works, who am I to say. I wonder what triggers the electric fan to come on, the A/C?

 

[Blackdog455]

dont electric fans free up some hp though?

 

[Psychopete]

dont electric fans free up some hp though?

That's highly debated, you just opened a can of worms. Even if it were a small gain, would that be worth the sacrifice of cooling capacity on a stock truck? They work, don't get me wrong, I ran one for years. But the cost and what (if anything) was to be gained, they are not very justifiable unless you're using it as described above where it is more practical. In other words, don't fix what works fine.

Pete

 

[OilPatch197]

That's highly debated, you just opened a can of worms. Even if it were a small gain, would that be worth the sacrifice of cooling capacity on a stock truck? They work, don't get me wrong, I ran one for years. But the cost and what (if anything) was to be gained, they are not very justifiable unless you're using it as described above where it is more practical. In other words, don't fix what works fine.

Pete

Just look what the OEM's use, do they use K&N filters? No. Do they use "turbonators"? No. How about magnents on the fuel lines? No.

and looking at the 2009 RWD vehicles, they ALL use electric fans. So if belt driven fans are "so great" then WHY are they not being put on new models of RWD vehicles?

and if your fan clutch is bad, you are best to replace the water pump at the same time.

 

[fastpakr]

All 2009 vehicles have electric fans? Where did you hear that?

 

[alaskan155]

tuarus 3.8l fan nuff said, better than aftermarket

http://www.mysporttrac.com/MySportTrac/projects/EFanInstall.pdf


3500 to 4500 cfm of goodness

btw the $360 fan u posted(quick google search) is only rated at 1950cfm, i only paid $30 for my tuarus fan

 

[OilPatch197]

All 2009 vehicles have electric fans?

Can you show me one that does not? Never seen them on a new model, most are electric, controlled by the Onboard computer.

The correct size fan for your application will actually cool the engine just as well as a stock fan, and in many cases it will alleviate problems with a engine that runs too hot. Most engines get hot while idling in traffic, or while moving at low speeds.

Because mechanical/belt driven style fans spin at a rate directly proportional to engine speed. At idle the fan is turning at under 1000 rpms, not nearly enough to dissipate coolant temperatures of 200+ degrees. However a good electric fan, will spin at 2200 rpm as long as it is getting 13+ volts from the charging system. This moves significantly more air through the radiator core.

 

[fastpakr]

Sure, how about the Ford RANGER? I haven't seen any evidence at all that they've changed over to a completely electric fan system. There are plenty of vehicles being produced that don't use electric fans.

 

[OilPatch197]

Sure, how about the Ford RANGER?

I was just snooping around under the hood of my new 2009 2.3 Ranger and happened to notice that there are 2 cooling fans!

Don't screw with the fan itself at all. It REDUCES your capacity, always.

As I stated in my previous post:

Because mechanical/belt driven style fans spin at a rate directly proportional to engine speed. At idle the fan is turning at under 1000 rpms, not nearly enough to dissipate coolant temperatures of 200+ degrees. However a good electric fan, will spin at 2200 rpm as long as it is getting 13+ volts from the charging system.

I still say the electric fan has more advantage at slow speeds and idling, where you really NEED a cooling fan.

 

[Jon581]

and there are plenty of vehicle's that come with electric fan's from the factory, so if they don't work why would the factory install them?

 

[fastpakr]

There are many reasons why they might make sense. But to say that they are exclusively better is completely wrong, just like when you said:

looking at the 2009 RWD vehicles, they ALL use electric fans.

.
You don't even have to look further than this site to see that mechanical fans are still in wide use. A thermally clutched fan does not waste the amount of energy you seem to think it does. Without the clutch locked in it spins freely, just like the electric fan will.

 

[Jon581]

i like the fact part's for mech fan's are cheap but i hate how loud it is when the clutch is engaged at low speed's or when taking off

 

[Psychopete]

I still say the electric fan has more advantage at slow speeds and idling, where you really NEED a cooling fan.

It's really never been an issue. But I can agree that the statement above makes some sense. From the quote you replied with; apparently Ford didn't think just the electric was good enough or else they wouldn't have wasted their time with the additional mechanical fan. Actually that's a double whammy. I am curious to go look under the hood of one now.

and there are plenty of vehicle's that come with electric fan's from the factory, so if they don't work why would the factory install them?

No one ever said they didn't work. It's also difficult to make a mechanical fan work in a front wheel drive car.

Pete