efan

[z987k]

The clutch is supposed to spin, if it dont then its broken

no, the fan is spinning.... when the water temp is ~10F. That is wrong.

 

[locovaca]

no, the fan is spinning.... when the water temp is ~10F. That is wrong.

Unlike physics, there is no such thing as a frictionless surface. So there is always a tiny amount of power going to the fan, and since the fan has little to no resistance, it will spin. Start your engine and let it run for a few minutes, then take a piece of cardboard and slowly stop the fan blades with it. If you can stop the fan with a piece of cardboard, your clutch is working.

 

[mjonesjr]

Obviously he has been mislead about e-fans like you have!!!

I guess Chrysler/Jeep have been mislead as well since my '06 Jeep Grand Cherokee has a FACTORY efan on it as well as all the '05+ Grand Cherokee's with the 3.7L v6.

 

[Bob Ayers]

I guess Chrysler/Jeep have been mislead as well since my '06 Jeep Grand Cherokee has a FACTORY efan on it as well as all the '05+ Grand Cherokee's with the 3.7L v6.

As usual Maurice, your missing an important fact! If the manufacturer uses an e-fan in the cooling system design, he makes changes like increasing the radiator capacity to compensate for the reduced airflow of the e-fan.

I think AllanD brought this out in one of your previous e-mail discussions.

Add-ons won't have this!

 

[rockwerks]

As usual Maurice, your missing an important fact! If the manufacturer uses an e-fan in the cooling system design, he makes changes like increasing the radiator capacity to compensate for the reduced airflow of the e-fan.

I think AllanD brought this out in one of your previous e-mail discussions.

Add-ons won't have this!

Newly designed shroud, higher capacity radiator, different style thermostat, etc. Designing a system from the ground up for efan is much different than a band aid fan setup.

Those of you who doubt BOB, maybe you take your efan truck and drive with another identical truck on the highway up hill for several minutes then quickly get out of your rigs and use a temp gun to measure the temp at the radiators you will see under stress a band aid efan will not be as efficient (I have done this with wranglers and cherokees)

 

[Bob Ayers]

Newly designed shroud, higher capacity radiator, different style thermostat, etc. Designing a system from the ground up for efan is much different than a band aid fan setup.

Those of you who doubt BOB, maybe you take your efan truck and drive with another identical truck on the highway up hill for several minutes then quickly get out of your rigs and use a temp gun to measure the temp at the radiators you will see under stress a band aid efan will not be as efficient (I have done this with wranglers and cherokees)

Even aftermarket e-fan manufacturers don't recommend their e-fans for primary cooling with heavy heat loads:

 

[mjonesjr]

Even aftermarket e-fan manufacturers don't recommend their e-fans for primary cooling with heavy heat loads:

Why do you always compare Ranger's to heavy diesel trucks? Do you not realize that a Ranger is not and will not ever have the same capacity as a 3/4 or 1 ton truck?

 

[pocket-rocket]

Unlike physics, there is no such thing as a frictionless surface. So there is always a tiny amount of power going to the fan, and since the fan has little to no resistance, it will spin. Start your engine and let it run for a few minutes, then take a piece of cardboard and slowly stop the fan blades with it. If you can stop the fan with a piece of cardboard, your clutch is working.

It's kind of like those retarded spinner wheels, lol.

 

[Jim Oaks]

I really get tired of the never ending bickering every time the subject of electric fans comes up.

How about we just tell people what e-fans are good and suggest that they keep the parts to reinstall their mechanical fan if they don't achieve the desired result!

 

[Bob Ayers]

Why do you always compare Ranger's to heavy diesel trucks? Do you not realize that a Ranger is not and will not ever have the same capacity as a 3/4 or 1 ton truck?

Maurice, I'm not comparing Rangers to diesels. This is however, a comparison of an e-fan to mechanical fan, where an e-fan manufacturer does not recommend an e-fan in heavy heat load applications. Another way of saying the e-fan doesn't have the cooling capacity of a mechanical fan/clutch.


Jim, thanks for opening the thread back up!!!

 

[BlackBII]

Goodness...

Can an Electric Fan cool an RBV just fine? Yes
Will you see any powergains/fuel effeciency from one? No

Bam. Discussion over

 

[Bob Ayers]

Goodness...

Can an Electric Fan cool an RBV just fine? Yes
Will you see any powergains/fuel effeciency from one? No

Bam. Discussion over

You missed one fact! You will have WWR (Wallet Weight Reduction)

 

[rockwerks]

Goodness...

Can an Electric Fan cool an RBV just fine? Yes
Will you see any powergains/fuel effeciency from one? No

Bam. Discussion over

Sorta, until you put it under big stresses like driving across I40 in the summer when the temps are over 110 or towing, or, or, or,


LOL for most it will be fine because the truck is never really used for more than a DD

 

[rangerboy92]

ok i have been running a efan for the last 3 years the mileage i gain i saw after doing this swap was about 1 to 2 miles in the city and 2to 3 on the high way the one problem i found is that in the summer (i live in south carlina) can run hot in traffic but a raditor out of a v6 rbv sould work just fine, but i am having problems finding in the junk yard because i have a manuel. the only power in think i gained is the fact that the engine will go thouth the rpm rang faster

 

[rockwerks]

ok i have been running a efan for the last 3 years the mileage i gain i saw after doing this swap was about 1 to 2 miles in the city and 2to 3 on the high way the one problem i found is that in the summer (i live in south carlina) can run hot in traffic but a raditor out of a v6 rbv sould work just fine, but i am having problems finding in the junk yard because i have a manuel. the only power in think i gained is the fact that the engine will go thouth the rpm rang faster

It will not matter for auto or manual radiator you will just not be using the trans cooling loop that runs through the radiator. Not a problem with that and auto trans radiator will work for you well. Heck you can use the trans cooler for an oil cooler and help that marginal system