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Electric cooling fans - Two pullers or One pusher?

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eBay!

I can't find 8" spal, but perma cool has them...

When it comes to electric fans, gotta be spal. They aren't cheap, but you get what you pay for.

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Then again there are huge numbers of stock fans of all sizes and capacities in wrecking yards. They practically give them away.

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I had one that had the blades part of a circular shroud that turned. Very thin. May have been an Audi or Volvo.

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Spal is an oem supplier.

 

Looked at subaru fans. I can't think of any oem running dual 9" or smaller. More likely one larger e-fan. Or mechanical with pusher for ac or assist. It's worth looking at though.

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This Subaru one was two almost identical with shrouds. One had a rad coolant recovery container on the side but I modified it to fit and then realized I needed the other and it was too late. I already have the recovery can anyway. Pull on the left side to clear the fan pulley and the push on the right in front. Overlap about 3"? For all the current draw mentioned, both are on a 20 amp fuse. $10 each.

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The fans arent directly in the center so it shouldnt interfere with the water pump.20170723_114050.jpg

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On most Datsuns there just isn't enough room between the high beams for side by side.

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My 66 520 radiator is a CX Racing Radior for a 510 SR swap.  I beleive it has to 10" pullers, might be 12"s, and a custom aluminum shroud.  All through my 520 build I have relied on a 4 1/2" grinder with a cut off wheel a cutting torch and a welder to make what I wanted to fit.  Hell wit all the mods and remods I could have built 3 trucks by now!

 

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hbQbNSY.jpg

 

Stock air con rad. Pull fan on left. The pusher fan is on front right. I thought 3-4 inch overlap but actually half. The front one covers half the pull fan.

 

xXfP9Ho.jpg

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Haha. Thanks for the pics!

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Wut in the fuk?

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Not to jump in late but I'm out in Northern Virginia have an L20b with two pushers and they are garbage when I get into traffic unless you like the smell of antifreeze coming out of the overflow tube that is.  If you can fit a shroud and a puller I say go that route mainly cause you have a directed shroud.  I have been thinking of trying to use a VW passat fan I had bought for my old TDI before they told me they were going to give me 23k for a car with 100k miles. (dieselgate buyback.) It is a fairly thin unit so maybe it will fit..... we will see.

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Not to jump in late but I'm out in Northern Virginia have an L20b with two pushers and they are garbage when I get into traffic unless you like the smell of antifreeze coming out of the overflow tube that is.  If you can fit a shroud and a puller I say go that route mainly cause you have a directed shroud.  I have been thinking of trying to use a VW passat fan I had bought for my old TDI before they told me they were going to give me 23k for a car with 100k miles. (dieselgate buyback.) It is a fairly thin unit so maybe it will fit..... we will see.

 

What radiator and what brand of fans? Not all fans are created equal.

 

I do agree though, shroud is important, and puller would be ideal.

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I'm running 2 push fans in the front of the car and one push fan because of the lack of space I have.

I don't have any pictures of my car at the moment but my car hasn't been over heating and I spent a total of about 50?

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Watch the fans. Make sure they are actually pushing and not pulling.

 

Last weekend I started and warmed up my 710. Fans come on for 10 seconds and off for about one minute. Seems that in the summer when it was warmer it was 10 and off for 30 sec.

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What radiator and what brand of fans? Not all fans are created equal.

 

I do agree though, shroud is important, and puller would be ideal.

To be honest I have no clue.  Pretty sure given the crap relay and controls for it that it is an I DA CHINA guaranteed to overheat your car branded fans...  The radiator has a nismo cap but that doesn't mean much these days so I am going to assume that it is crap too and even if it wasn't they did a number on it when they put the fan fasteners through the core.

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I just got the Koyo on Monday. I'll see about getting it mocked up and see what space I'm dealing with.

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I've run a Sirocco radiator for years, with 1) 10" pusher, and 1) 10" puller, with them offset to cover the width of the core.


Works fine, even on 105 degree Texas weather.


One fan is wired up with the ignition, and the other through the Sirocco temp switch.


 


Only thing, the cheap ass fans I buy only last 2 years at the most.


Maybe if I wasn't a cheap ass, and buy better quality fans, that would be less of a problem.


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What about cars that come from the factory with fans? They run for more than a year or two. Fans shouldn't be on continuously. If they are, you might as well have a mechanical one.

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