I got my motor in last night, Im doing the EJ22 EA82 swap. I wanted to know if I would have any problems mounting to cooling fans on the back of the radiator instead of the front to give more room to work on stuff?? Not problems mounting it per say, but problems with cooling. Will mounting it on the outside effect the way things are cooled or am I just worring about nothing??

 

Tony~

If they are made to blow the other way you'll have no problems. But if they are blowing against the direction of the car I would say they might not work too well.. I did try a stock EA81 fan plugged in opposite polarity and it seemed to work fine so you may be able to use one like that..

On mine I used two Mazda 626 Aircon fans, as they sit in front of the aircon cooler and they were smaller enough to just fit on the other side of the radiator.

http://offroadingsubarus.com/images/ej22swap_mazda_airconfan_stock.jpg

http://offroadingsubarus.com/images/ej22swap_mazda_airconfan_fitted.jpg

Ok, well I was thinking I would try to use the stock EJ22 or EA82 fan. So would those not work??

 

Tony~

Some motors don't like running backwards, but you can always give it ago and see if they last. Just wire the black on to the red and the red on to the black and it should run backwards (blow towards the open part instead of the bracket.)

If they are made to blow the other way you'll have no problems. But if they are blowing against the direction of the car I would say they might not work too well.. I did try a stock EA81 fan plugged in opposite polarity and it seemed to work fine so you may be able to use one like that..

On mine I used two Mazda 626 Aircon fans, as they sit in front of the aircon cooler and they were smaller enough to just fit on the other side of the radiator.

http://offroadingsubarus.com/images/ej22swap_mazda_airconfan_stock.jpg

http://offroadingsubarus.com/images/ej22swap_mazda_airconfan_fitted.jpg

 

 

NOT all fans are created equal!! some flow perfectly fine when you reverse the polarity, but I have an electric fan that my brother installed on my soob in place of the stock electric fan, and since it blew the wrong way he wired it backwards... HOWEVER, when I took it off to replace it with a JY stock unit I bought, my landlord said "hey, this spun this way, right?" and he spun it the "wrong" way.. I said, "but yah, it was reversed so it blew the right way" and he told me that some fans are not omnidriectional. The way the fan WAS spinning... it sucked air from a central location, and dispersed it centrifugally.. and when it was polarized the RIGHT way, it sucked air centrifugally and blew it in a central direction. In other words, blowing the way it was on my car.. IF you put your hand in front of it, say a foot away, you hardly felt any air moving.. BUT if you looked DOWN along the plane of the blades, you felt air blowing on your face... you dig?? so SOME fans (it depends on the design of the blade) do not work quite "right" when you reverse the polarity... BUT stock EA82 fans are "puller" fans, mounted between the engine and radiator.. so that would work, if you could get one of them.

 

Just trying to enlighten and spread knowledge... chances are that the difference is minimal in real life situations.. I never had a PROBLEM with my "backwards" spinning fan, but it WAS pulling air, and not pushing it... the air DOES have to flow the right way or the fan becomes counterproductive when the vehicle is in motion.

Yes, I dig... I didn't think that far along the line, the blade design does do a lot. And some of these fans look pretty funky. I like my aircon fans