What are the cfm ratings of the electric fan most of us buy:
Ford part number.....XR3Z-8C607-AA

Both high and low speeds please.....thanks dudes

--Joe

 

I did a search but couldn't find anything but this will TTT

Dan

 

Thanks Dan.........

I searched electric fan posts for over an hour and noone has brought it up. Just seemed funny because almost all aftermarket electric fans like Perma-Cool, SPAL etc all list thier fans by size and cfm rating.

--Joe

 

It doesn't really matter...

Even though the aftermarket ones list flow, it's flow in an open container, not flow through a radiator.

What you'd really be interested is a chart of flow vs. static pressure generated. I'm pretty sure no one is handing that out though.

The only other thing I can add is that straight blades flow more than curved blades and metal blades typically flow more than plastic blades.

The Ford part is a curved plastic blade.

Coldie

 

From my Web site: "An electric radiator fan can offer better cooling, quicker warmups, and more HP due to the removal of the parasitic drag of the stock crank-driven fan. I chose the Flex-a-Lite unit to the right (part # 270). This $400 unit is specifically designed for the F150. It has a variable-speed fan control (60-100%) and pumps out a maximum of 5500 CFM (much more than the 3,500-3,700 provided by the Ford-based kits). Additionally, by having two fans, as opposed to the single fan in the Ford-based kits, the truck is not crippled if one of the fans goes out."

More info there.

 

HI!.... I'm running dual DERALE 16" electric fans. Each 16" fan is rated at 2250CFM, (underated) so with 2 they are rated at 4500CFM. I rarely use both at the same time. 1 works pretty well to cool my truck down. Even in 100 + degree temps.

 

Soap: Since JDM and LFP and JLP all use Ford units, which are the same as ones out of Mark VIIIs, it is a 3400 cfm fan. That is what I have (home-made).

However, there are no hi/lo settings to my knowledge? I just use the switch (not AC) and it is just on/off.

 

If you have the Ford fan it has 2 settings. Go look at your fan and see how it has 3 prongs. 1 is negative, 1 is low, 1 is high. Go give it a shot

--Joe

 

hmmm never knew that. was this included with the wiring kit JDM, etc. offers or what? I guess mine is always on high then...

please give me more details (i didnt install the efan myself...a friend did most of it...and i haven't set up the AC controls yet)...

right now it is just the default switch...i have to go back for the painless wiring kit.

 

Both the Ford-base kits and the flex-e-lite fan get the job done.

Does it really matter which fan to buy?
Is there an appreciable difference between 3500cfm and 5500cfm?

 

I have no idea what the JDM (or others) wiring kit includes or how it hooks up. I wired mine myself.

Just for a test go do this:
There are 3 prongs on the fan. 1 is negative and has a - sign in front of it. 1 is positive and has a + sign in front of it. Now the other one (middle prong) is also positive. Run a test wire from the - prong to the negative on the battery. Run another wire from the positive on the battery to the + on the fan. Now move the + wire to the other prong (middle) and tell me there isn't a difference in the cfm it is pushing.

I had mine wired to turn on either high or low. One on a 30amp circuit (low) and one on a 40 amp circuit (high).

--Joe

 

We sell the Flexalite unit because of its higher cfm ratings, safety (2fans instead of one), and cosmetics. No homemade brackets and such. A/c fan switch and all installation hardware included with these units too.

 

Yeah. 2,000 CFM.

Sorry -- couldn't resist.

 

Tim, please don't take this wrong but why would I pay you $499.00 for a fan I can buy from Jegs for $383.00? I must be missing something. Is there something else that is included in your kit that is not in the standard flex-a-lite kit? I really would like to know as this is a mod I am going to do in the next month or stwo.


Thanks,
Jerry

 

He said he paid 400...

I believe the fan in jegs doesn't include the wiring, etc.