new fan clutch and fan or electric fan mod??

[aha2988]

Hey aha, nice pics and nice Job. I'm doing the same thing to mine at the moment and am wondering what exact fuses you tapped into. Specifically for the A/C "on" control and for the ingnition signal. I believe it was the yellow wire for ignition and green for the A/C signal.

Thanks man!

the green is definitely for the a/c
signal. (FYI I used a perma cool 18"
diameter puller 3000 cfm high performance electric fan... plus a 2500 cfm pusher fan and barely moved enough air to cool the system.)

If you've gone the extra mile with a custom built duel efan shroud setup you may be okay

(best of luck the clutch fan really is dominant.)

the pics show the green wire headed to the correct fuse
(use a test light to find which leg of the fuse has power when the A/C compressor is switched on.)

the yellow is most likely the ACC power supply wire; however,
consult your wiring instruction write up page for proper electrical schematics directed towards your setup.

UPDATE TO THIS THREAD: I have reinstalled the factory clutch fan!!!!

the most high performance single electric fan (perma-cool 18" diameter no shroud included utilizing stock shroud) 3000 cfm aluminum blade wouldn't cut it,,,backed with a 2500cfm 10" plastic blade built in shroud pusher fan in front of the A/C condenser!I)

I continuously had to run the heat on high during: A.)elongated traffic back up's, (bank,fast food, and traffic lines) B.)low range 4wd high rpm off-road conditions.

Positives: 1-2mpg gas consumption decrease, one can run the cooling fan(s) with/without the engine running, as well as shut off fans through water crossings preventing engine compartment debris.

negatives: electrical short potential, overheating due to insufficient air flow, damage to radiator cooling fins if fan(s) aren't mounted with secure mounting tabs (speaking of direct radiator mount setups I.E.: plastic zip tie clamps provided with electric fans NOT RECOMMENDED)

IMO If you want to go electric fans use
a custom shroud assembly duel fan setup designed for a 4runner radiator and of a equally efficient radiator/efan setup.

 

[b.hog]

Thread revival

Anyone ever play more with this? I put a couple efans in vehicles but always used the oem for Taurus fans.

 

[BlackWorksInc]

Thread revival

Anyone ever play more with this? I put a couple efans in vehicles but always used the oem for Taurus fans.

Taurus E-Fans were a go to choice for a lot of people for their easy of availability and price point. But I would go for a beefier aftermarket option if you're planning on going E-Fan.

Something else to point out that was missed in this thread is that typically modern vehicles are using 2 Electric Fans to cool the vehicle. This is done mainly because when engaging the A/C your temperatures will change drastically as the condenser is now in play and will be heat soaking the radiator. I personally don't see the advantage of replacing the factory mechanical fan with an E-Fan on these vehicles as the factory fan clutch is more than adequate for our applications (not to mention for a quality E-Fan set-up you're paying for more than a new factory fan clutch and blade.)

One more thing to note that the OP overlooked is that the factory temperature gauge is an ineffective indicator of engine temperature. They are not typically accurate and act more as a go/no go gauge. If you're going to go with an E-Fan system and not figure way to install a temperature switch to trip the dash indicator earlier than the factory set-up in the event your fan dies, I highly recommend you have another method of watching temperatures. At the least if your mechanical fan clutch fails it usually still turns somewhat and helps to cool; an E-Fan doesn't seem to do this as effectively. An additional point is that at higher speeds the fan is not as important and can be a hindrance as natural airflow will cool better.

 

[aha2988]

http://www.toyota-4runner.org/3rd-gen-t4rs/94282-v8-conversion-19.html

this member shoe horned 2uz-fe engine in a 3rd gen. he utilized efans for cooling and whats seems a larger radiator to get the cooling ability necessary. he would have the most insight to anyone I know of in doing this conversion if interested.

In my situation my plastic clutch fan blades had become damaged. It was a little over a hundred bucks to replace the molded plastic blade so i sought after a cheaper repair that may add some other small benefits. Never could get it to work on a lower budget though. I updated my last post in this thread with my experiences.

 

[b.hog]

Thank you, gents.