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Old 02-27-2012, 09:06 PM
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Default Lighter ele. fans

Whats are you guys using, if you stock or turbo. I'm looking for some info, and ideas. I want to change out the stock fans, to a lighter fan.

The stock fans and radiator weight 21.2 #s (with the hoses)
http://i2.photobucket.com/albums/y11...n/IMG_4261.jpg
10.8#s is a bare stock auto radiator 99% drained.
Stock 2001 dual fans in the shroud 11.7-11.8ish
Removing one of the fans blades and motor (4.2 4.1ish) brings them to 7.4.



the stock WP is 15# with T stat housing, and tensior.
http://i2.photobucket.com/albums/y11...n/IMG_4257.jpg

I dont have a power adder making alot of heat. But I do street drive the car alot. Its NA and only makes 450whp. I see the prochanged and turbo guys having cool trouble going to a ele fan. I dont have AC, or a trans cooler, or IC adding heat to the outside air for the radiator. Its not blocked with anything, and run the stock air dam, and lower airbox, air shouldn't just be going around the radiator.

I think I can get away with just one fan mounted right to the back of the radiator. I haven't found many weight of different fans, But I would think going to a single would be lighter, and easier to wire. And smaller would be lighter. What do the stock fans move, and what do you need for the simple non AC, car like mine. 2500cfm, 3500????

Anyone use a Zirgo fan? they spec with some high CFM number, nice a basic, no extra flange, and not alot of money. Maybe to cheap compared to other brands??

this is one the the highest CFM single 16 I found

Zirgo ZFB16S S blade? 10apms
16" (16.5 x 4) 3000 cfm $120
http://www.zirgo.com/catalog/Cooling...ng-Fans/ZFB16S

ZFB16 normal blades 7.5amps
16" (16.5 x 3.5) 2800CFM $ 85
http://www.zirgo.com/catalog/Cooling...ing-Fans/ZFB16

Can I got to a 14?

ZFU14S S blade 10amps
14" (14.5 x 3.5) 2,785 cfm $140
http://www.zirgo.com/catalog/Cooling...ng-Fans/ZFU14S

Last edited by studderin; 03-21-2012 at 10:18 PM.
Old 03-04-2012, 10:06 AM
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Old 03-05-2012, 08:17 AM
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I think spal lists weights on their website so that may be worth a look also. You'll probably need some sort of shroud for it really to be effective, maybe make something out of aluminum. I had this same idea also but looking quickly there wasn't as much weight to save as I initially thought, however I didn't take everything out and weigh it all so I'm sure there's some to be saved, just can't say how much.
Old 03-05-2012, 02:38 PM
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Thanks, I'll check out the Spal site. Looking at some other fourms, its been brought up they supply the fans for some high end exotic cars.

Isn't a shroud more for when the car is sitting running for a long time, the make the fan more effective for pulling air thu more of the rad, then just a area behind it?
And when to car is moving it dose little along with the fan. (not ducting to get air to the rad. a fan shroud)
Old 03-05-2012, 06:57 PM
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The shroud will force the fan to draw air thru the entire radiator not just where the fan is, so that helps the radiator cooling alot.

If you can build a shroud around a single fan I think it would work out fine. Spal makes a very good product, if you can find one from them and can build a shroud around it you should have no issues at all.

If you're looking at a smaller radiator, that can work as well. I have a meziere that's pretty small that I bought from Tom Kemph that has the Mez. water pump right on it, I'm going to use it to cool the bbc, Tom had no cooling issues with his original setup in the white car so I think it will be plenty even for the bbc.

I don't think you will have any cooling issues at your power level at all, even without the shroud and a single fan, if you run a bottle of water wetter in with the water fwiw, the stock radiator, with all the a/c and whatnot works fine in 120 degree heat all day long atop and go, you won't see THAT much driving with the car I wouldn't think at this point, and with all the other stuff out of the way it's got to have an easier time doing it's job.
Old 03-13-2012, 07:02 PM
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weight my stock fans the other day

Stock 2001 dual fans in the shroud 11.7-11.8ish
Removing one of the fans blades and motor (4.2 4.1ish) brings them to 7.4. thats would be the budget way to go. I dont think that other fans even works now with the AC removed? it was alot duster, and had alot of dead bugs on it, I htink would have flung off it had been running at all this summer. I cant check them right now.


I might still get a nice spal the 3010 2082, 2470cfm, or maybe the 2120(old 2036) 2360cfm draw about 22amps and the SPaL pdf. spec sheet says they both weight 5.17pounds, and I can get them for about $115-125 shipped
I hear I can sell my stock fans for $100?
Old 03-14-2012, 09:49 PM
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I think the stock fans may work on a gm pickup, if that's the case then I think that with the shroud, it would be an easy sell yes.

I had both fans in my car programmed to run as soon as the car hit 160 and they wouldn't come off unless it got down to 120, so they pretty much would stay running.

You can just run one via the tune if you want to, so if you only have one that looks like it's working it may be becuase of that... easy enough to check if you have the computer/tune file there.
Old 03-16-2012, 06:54 PM
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Got some good info form Spal, called the tech line talked to arron. The 2021 I was looking at, was called 2039. Dose not move the 2360cfm spec at. its less. And the 2082, same thing, but didn't recommend either for me. Ended up getting the 2049.
Said they put the un sealed extreme motor (2113) in the other 2120/2082, but with added seals. And they run really hot, and have some warranty things about how hot the motors get. And they test them on a rad, with 13v. Some of the other with better rating are with no restriction, and more volts. And after time (warm) the 2120/2082 will move less (they pull 22 amps). At 1st they pull more he said, but thats how the spec gose. The 2049 will do better then its rated say for me, (specs at 2070cfm) I think its from only having the stock thin rad. its not gona to strain it, like the others are more for RV with more crap on them.

Got the 2049.
curved blade 16inch, 5.17pounds, pulls 2070 (really dose better) 18.4 amps
And they make a 2050, thats the same but I think the end is the same as the factory harness ti plug right it FYI, but thats a little hater to find. All fans will be about 1 amp per 1K cfm, the Zirgo are BS, and I found lots of them burning out.



http://www.the-fan-man.com/shop/-c-3...page=3&sort=2a



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