Dual Fan Comparison
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From: Mt. Vernon, WA.
Dual Fan Comparison I recently scored a couple of F-body dual fan setups from the local salvage yard. Both are from mid 90's V6 donors, unfortunately I did not get the exact years. The dash was gone in both cars so I could not get donor miles either. But I did test both and they seem to function quietly and move a lot of air.
Side by Side:
Option 1:
Option2:
Now, in terms of reliablity and performance is one better then the other? My very well calibrated "hand in front of the fan" test said that option 1 moves more air...
Any useful input is appreciated. Thanks guys!
BTW, I test fit the radiator and fan setup in the car and its a near perfect fit with a few of the plastic features removed from the rad. The original top plate even fits!
Side by Side:
Option 1:
Option2:
Now, in terms of reliablity and performance is one better then the other? My very well calibrated "hand in front of the fan" test said that option 1 moves more air...
Any useful input is appreciated. Thanks guys!
BTW, I test fit the radiator and fan setup in the car and its a near perfect fit with a few of the plastic features removed from the rad. The original top plate even fits!
Looks like the motors and fan blades for those two fans are interchangeable. So you have plenty of spares.
I would run the one on the right, the ones with the cut outs in the shroud. There is suppose to be a flap on there that allows air to flow through the radiator when the fans are off, but suck shut when they turn on to force air through the radiator. When you are moving the fans should be off, so the one on the right will unblock more of the radiator.
I would run the one on the right, the ones with the cut outs in the shroud. There is suppose to be a flap on there that allows air to flow through the radiator when the fans are off, but suck shut when they turn on to force air through the radiator. When you are moving the fans should be off, so the one on the right will unblock more of the radiator.
The one on the left looks like my 4th Gen LS1 fan setup...
I have the Radiator and fan from an 02 Z28 on my 71 Nova.. just had to drill the hole in the lower support on the passenger side and use some rubber radiator mounts with my 3 hole upper support as you did. I did open up the front left side of the Radiator support by about an 1". and cut off some of those mounting tabs on the side (Also documented in my build thread).
Let us know what you find from your test..
BC
I have the Radiator and fan from an 02 Z28 on my 71 Nova.. just had to drill the hole in the lower support on the passenger side and use some rubber radiator mounts with my 3 hole upper support as you did. I did open up the front left side of the Radiator support by about an 1". and cut off some of those mounting tabs on the side (Also documented in my build thread).
Let us know what you find from your test..
BC
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TECH Enthusiast
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Joined: Oct 2011
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From: Mt. Vernon, WA.
Thanks for the input guys. I am thinking I am going with the one on the right. I have been doing my mock up work with it thus far and like it. It is a little lighter and I like the air bypass design to aid cooling. And when I upgrade to a nice performance radiator I will be able to pull the fan assemblies out of the shroud and build a custom sheetmetal shroud for them. Thanks again.
