Radiator Fans Reversable?
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Radiator Fans Reversable?
Does anyone know if the stock radiator fans are able to reverse the direction they are spinning? I wasn't sure if they were or weren't and I can seem to find the answer in any of the serches I do. ANy help would be great. Thanks guys.
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Is there any reason as to why? I mean are the fans not capable of spinning the other direction for long? I have worked on a lot of cars in my day and we have almost always been able to switch the polarity and had them spin the other way but I don't want to risk losing my enigne over it...I was just curious if anyone has done it successfully without any problems? I appericiate the tips though seriously. I jsut have all this stuff wired up now and in great placement and didn't want to replace the fans unless I absolutly have to. Anyone done this?
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Is there any reason as to why? I mean are the fans not capable of spinning the other direction for long? I have worked on a lot of cars in my day and we have almost always been able to switch the polarity and had them spin the other way but I don't want to risk losing my enigne over it...I was just curious if anyone has done it successfully without any problems? I appericiate the tips though seriously. I jsut have all this stuff wired up now and in great placement and didn't want to replace the fans unless I absolutly have to. Anyone done this?
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#9
Is there any reason as to why? I mean are the fans not capable of spinning the other direction for long? I have worked on a lot of cars in my day and we have almost always been able to switch the polarity and had them spin the other way but I don't want to risk losing my enigne over it...I was just curious if anyone has done it successfully without any problems? I appericiate the tips though seriously. I jsut have all this stuff wired up now and in great placement and didn't want to replace the fans unless I absolutly have to. Anyone done this?
Also the fans will be working extra hard trying to force the engine air against the incoming air when the car is moving forward.
Test out the fan leads by clipping aligator leads from the battery and see which way the fan spins.
#10
Is there any reason as to why? I mean are the fans not capable of spinning the other direction for long? I have worked on a lot of cars in my day and we have almost always been able to switch the polarity and had them spin the other way but I don't want to risk losing my enigne over it...I was just curious if anyone has done it successfully without any problems? I appericiate the tips though seriously. I jsut have all this stuff wired up now and in great placement and didn't want to replace the fans unless I absolutly have to. Anyone done this?
Also the fans will be working extra hard trying to force the engine air against the incoming air when the car is moving forward.
Test out the fan leads by clipping aligator leads from the battery and see which way the fan spins. I did that to make sure the leads are correct.
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I should have told you guys I put my radiator standing straight up and the fans are now pulling air through the radiator rather then pushing it through. This is the reason I am trying ti figure out if they can be reversed. Either way it sounds as if this should be a problem. I will try it out and let you guys know what happens. I run both fans full time so i doubt they will both blow at the same time. Either way if anyone else has tried this and had any problems please let me know.
#12
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^^uh. the fans are suppose to pull air from the rad, not push it through. unless your fans are now mounted on the front side of the rad reversing there direction is gonna do u more harm then good. the fan blades are also curved to operate in one direction, they would be way less efficient turning in the opposite direction.
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Your right there I mixed up my wording. I disagree on the angle of the blades though. I personally feel that if reversed the blade design on the stock fans would still be sufficiant for the needs of a RX7.
#15
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Fans are actually less efficient "pushing" airflow through a heat exchanger than they are "pulling" it from the opposite side. The reason is because when "pulling" airflow, the fans are using the higher pressure (hopefully the heat exchanger is mounted in a way that exposes it to direct airflow) on the opposite side to their advantage when they generate a negative pressure on their side. When they're "pushing" airflow, they're attempting to add pressure, which is much more difficult. Not to mention the fact that the fan assembly is also blocking some airflow when it's mounted in a "push" fashion...