Hi folks,
I'm considering installing an electric fan when I install my next engine. I currently have done away with the clutch fan and have a direct flex fan. It seems to do well with the exception that the needle climbs when towing up longer hills in 3rd gear. It's never gotten hot though. I'd think of then installing a 190 or 200 thermostat and setting the fan's thermostat at about 210 or maybe also 200. I'm wondering if others have installed the electric fan conversion. If so, what is your opinion and evaluation of how they work.
Thanks,
Tony

 

I'm considering installing an electric fan, too. I really would like to... but I have no idea on how to hook one of these bad boys up, or anything.. can you guys brief me on the process? I'd like to do this soon, since my fan is bent and the shroud wont bolt back on to my new radiator.

 

I put one of the Flex-A-Lite 210 Dual Fan units on an '85 Bronco 302 EFI. I like it a lot (especially the 6" to 8" gap between the fan and the water pump pulley, lots of room down there!) but am disappointed that I ordered one with the adjustable thermostat. The little copper tube that is supposed to fit into the upper radiator hose neck of the radiator (and snake out between the hose and the neck, with the clamp tightened down) without leaking is CHEESY. I'm going to be removing it to install a thread-in type sensor on the engine...... perfect spot: one of the aftermarket (parts store) thermostat housings with the threaded plug in the top. I'll be installing two Radio Shack accessory relays inside the radiator support. One will trip the fan on when the sensor hits its mark and grounds, and the other will trip on when the a/c is switched on (via current from the a/c compressor clutch wire). This way, I'll always have the fan running when the engine is warm, or when the a/c is running (to pull cool air across the condenser). I've gone one step further, and will be wiring in a dash mounted SPDT switch which will allow the fan to operate as normal (sensor controlled) in one position, do nothing in the center "off" position (for winter warm ups), and operate constant on in the third (for towing on hot days). A word of caution, these do pull the juice (around 20 amps). Because I'm also adding a set of driving lamps, I've picked up an Econoline 100 amp alternator, which I'll be using to replace my stock 65 amp'er, which should take care of any energy concerns. Hope this helps!

 

When you mount the electric fan, do not mount it with the nylon ties that pass through the radiator core. Make some mounting brackets and bolt them to the radiator support. Some electric fan kits come with these brackets ready made.
Great idea with the relays and switches!
TomC