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2G Dual FAL Fans 490 VS 440 VS 420

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miguelmcv

Supporting Member
2,717
255
May 3, 2009
Fresno, California
I being having some light high temperatures lately, so before I spend $300 $500, I would like to have a very good knowledge on each set up (Fal Fans).

At the moment I am running 2 10" (pushers) and 1 12" puller, all of them are mishimoto, they were working well, but now they aren't keeping up which now the weather here in Fresno CA is 100, 110F,.

I would like to hear specially from people that has being using one of this dual Fal kits., I would really love to hear about the #490 which is reversible and I can use it as puller or pusher style, it is rated to 3000cfm which that makes it suitable for my system,,, so if some one is using one of this dual kits please chime in and post your results.

The #440 and #420 are rated to 2500cfm but the difference is one is pusher and the other is a puller style, I do know this kits (#440, 420) fits our car but I'm trying to hear from your experience how efficient the kit is.

Can some one confirm as if #490 fits our 2g radiator, I don't really care if it's not a true bolt on, I can do my own brackets and modify what ever is need it to fit it in, but I wouldn't like to cut 1/4 of the shroud because it end up being to big.

Any information would be very appreciated, some pics of the install would help as well.

However, here is some informations for the dual kits.

#490 3000cfm Xtreme ReversibleStyle.
https://www.flex-a-lite.com/reversible-dual-12-1-8-inch-x-treme-s-blade-electric-fan.html

#440 2500cfm Pusher Style
https://www.flex-a-lite.com/electri...h-lo-profile-s-blade-electric-pusher-fan.html

#420 2500cfm Puller Style.
https://www.flex-a-lite.com/electric-fans/dual-12-1-8-inch-lo-profile-s-blade-electric-fan.html

Thanks in advanced.
 
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I could not be any happier with my F.A.L. (Flex-a-Lite) FLX-490 reversible fans. A little pricey, yes, I paid $369.95 to my door after a $30 rebate from Summit Racing 2 years ago. But they should perform better than 2 spal 30101504 fans that are only rated at a combined cfm of 2450 that don't come with a shroud and are only puller fans. If you have room for puller fans, then two 12" spal's may be plenty enough and save you money. But still $160-200 for the fans and prolly another 100 for a shroud if its needed and you don't make your own.

I did reverse the blades and run them as pusher fans and they work great with a large fmic, tubular exhaust, no hood vents or exhaust wrap. But it is in a 1g, so I can not comment on fitment in a 2g.

They are MADE IN THE USA

It also has a very nice thick heavy duty rubber seal all the way around the shroud to seal against the outside edges of my Koyorad aluminum radiator perfectly like they were made for each other, making sure all the air has to go thru the radiator. That rubber seal is at least 1.25" to 1.5" wide and just as thick but will squish down to well under .5", and has held up to a lot of heat without any sign of melting, drying out, or getting hard.

The flx-490 does weight a little more than I thought it would, you could prolly save a couple lbs. with an aluminum shroud setup, but I would want to make sure it sealed great and the fans were positioned to properly space the fans from the radiator.

If you are not using a shroud now on you pusher's, you may want to try that 1st. Don't just use those electric fan mounting kits with those plastic fasteners you push through the fins of the radiator.

What kind of Mishimoto fans are you running? The Mishimoto "Raceline hi-flow" 12" fans look very impressive. 1850 cfm each and reversible. Extreme PSI has them for $157.50 each, but not shrouded. So, about $320 for 3700cfm.
 
They do make a pusher version of the same fan part number 30101502. Also all spal fans are fully tested and have a flow rating at different pressures across the fan. A radiator is a restriction to flow and the fan will flow less than its unobstructed flow rating. Spal fans actually flow what they are rated, and are oem equipment on many buses, larger vehicles, and equipment. The cheapest spal fans are usually around $100 each, you get what you pay for.

Here is the product description for the 30101502, and 30101504.

https://webstore.spalusa.com/content/files/content/PDF/30101504_1505_1547_1563_1565_1586_SPEC.pdf

The only slim fans I've seen that allow ac to operate without overheating where I live are the spal fans. To be fair it's 115* or higher here in the summer.
 
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Donnie do you push or pull with your Spal's? I'm putting in an X series radiator and was pushing with mine but just wonder if I have room if I should rethink pushing. Thanks
 
Donnie do you push or pull with your Spal's? I'm putting in an X series radiator and was pushing with mine but just wonder if I have room if I should rethink pushing. Thanks
I have 2 pullers. They fit fine with a griffin radiator and fp dsm82 setup.

I highly recommend running your own thicker wiring, and relays to operate them. I bought a car with spal fans that had melted the stock wiring in places because of the high current draw.

They work so good that one of them keeps my car cool as long as I don't turn on the ac in 110* temps.
 
Thanks. I appreciate the tip. I don't want to melt my spal with my hx40.
 
I don't know what kind of mishimoto fans I have but I bought them 5 years ago and they being doing the job, I just moved to Fresno and here is way hotter then the Bay Area ( where I used to live).

I have ducted my front end so I'm good there, I know there are some fans that are good for the price, I just don't want to buy something hat it won't keep up.
 
Do you have ac?

Also for cooling issues in hot places (105+) it can be more helpful to reach out to locals that will understand your cooling needs better than people located in less harsh locations. Take a look at some setups in your local subforum and see what is working for people. I know that here in the Phoenix metro area a lot of setups work ok until ac is used. But with ac in operation a better setup is required.

With ac on, and ambient temp above 110* I can do back to back 500+ whp pulls without going much over 200* with my setup. I spent years looking for an ac friendly radiator/fan/ducting setup that works for me. The water wetter products actually help as well.
 
I could not be any happier with my F.A.L. (Flex-a-Lite) FLX-490 reversible fans. A little pricey, yes, I paid $369.95 to my door after a $30 rebate from Summit Racing 2 years ago. But they should perform better than 2 spal 30101504 fans that are only rated at a combined cfm of 2450 that don't come with a shroud and are only puller fans. If you have room for puller fans, then two 12" spal's may be plenty enough and save you money. But still $160-200 for the fans and prolly another 100 for a shroud if its needed and you don't make your own.

I did reverse the blades and run them as pusher fans and they work great with a large fmic, tubular exhaust, no hood vents or exhaust wrap. But it is in a 1g, so I can not comment on fitment in a 2g.

They are MADE IN THE USA

It also has a very nice thick heavy duty rubber seal all the way around the shroud to seal against the outside edges of my Koyorad aluminum radiator perfectly like they were made for each other, making sure all the air has to go thru the radiator. That rubber seal is at least 1.25" to 1.5" wide and just as thick but will squish down to well under .5", and has held up to a lot of heat without any sign of melting, drying out, or getting hard.

The flx-490 does weight a little more than I thought it would, you could prolly save a couple lbs. with an aluminum shroud setup, but I would want to make sure it sealed great and the fans were positioned to properly space the fans from the radiator.

If you are not using a shroud now on you pusher's, you may want to try that 1st. Don't just use those electric fan mounting kits with those plastic fasteners you push through the fins of the radiator.

What kind of Mishimoto fans are you running? The Mishimoto "Raceline hi-flow" 12" fans look very impressive. 1850 cfm each and reversible. Extreme PSI has them for $157.50 each, but not shrouded. So, about $320 for 3700cfm.


Can you put some pics for reference to those 1g's so they can have an idea when doing their set up.
 
Do you have ac?

Also for cooling issues in hot places (105+) it can be more helpful to reach out to locals that will understand your cooling needs better than people located in less harsh locations. Take a look at some setups in your local subforum and see what is working for people. I know that here in the Phoenix metro area a lot of setups work ok until ac is used. But with ac in operation a better setup is required.

With ac on, and ambient temp above 110* I can do back to back 500+ whp pulls without going much over 200* with my setup. I spent years looking for an ac friendly radiator/fan/ducting setup that works for me. The water wetter products actually help as well.


I do have AC,....
My problem is lock of knowledge about aftermarket fans, I can use the oem fans and have no overhearing problems, but there is not much space for the oem fans.

My other Dsm (100%stock) has no problems with a dual 10' fans (mishimoto) without shroud but I know every car is different.

When I first bought my fans, I bought them thinking on the wether were I was living and I new I can make it with the once I have,, I know, all what I need is a stronger fan, but I don't want to make another purchase in the future so I want the best and don with it.
 
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Unfortunately, I did not take any pictures of the install in the 1g. Next time i have the chance i will take pics. I did have two puller slim fans with my 2g exhaust manifold/pte6152 and melted the drivers side fan within 50 miles. Then i switched up to pushers with tubular exhaust manifold/hx40, way more room.

To run the Flx490 in a 1g as a pusher, you must cut and modify the hood-latch support that sits vertically in front of the radiator to clear the fan motors and drivers side fan cover, so no a/c condenser unless you get really creative and make the room. Also, you will need to trim almost .5" off of the edge of the top horizontal core support closest to the radiator under the upper radiator brackets. Trim a little at a time and test fit until there's just enough room to get the top radiator brackets lined up. After that, you literally drop the fan behind the radiator and pull back as hard as you can to get the radiator bracket bolts started. No mounting hardware needed. Mine fits perfect, and absolutely will not budge.
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The flx 490, 440, and 420 are all 15.5" x 26.25". The 490 however, is 4" thick at it's thickest point(the fan motors), while the low-profile 440/420's are only 2.625" thick because of the smaller motors. So, if you say you know the 440/420's fit the 2g radiator, then so will the 490, but the motors are much bigger.
 
Thank you to post pics and advice.
I have ac and for one moment came to my mind to put them as puller but attached to the intercooler to be able to keep the ac condenser, if the hood latch is on the way I can remove and install hood pins on the side.
 
Do you have ac?

Also for cooling issues in hot places (105+) it can be more helpful to reach out to locals that will understand your cooling needs better than people located in less harsh locations. Take a look at some setups in your local subforum and see what is working for people. I know that here in the Phoenix metro area a lot of setups work ok until ac is used. But with ac in operation a better setup is required.

With ac on, and ambient temp above 110* I can do back to back 500+ whp pulls without going much over 200* with my setup. I spent years looking for an ac friendly radiator/fan/ducting setup that works for me. The water wetter products actually help as well.


I would like to thank you for the advice.

What you think about installing the fans to the intercooler as puller?, do you think it will be ok saying that the fans (3000cfm) are way way stronger then the regular fans (2500cfm).
 
I see what your thinking, 2 puller fans attached directly to the back of (fmic) intercooler in between the fmic and the radiator, pulling through the intercooler directly first while pushing through the radiator from a small distance.

IMO, anyone is free to disagree, Even if you closed everything up tight with a good ducting setup from the bumper cover to the front of the radiator(or at least from fmic to radiator), It would surely not cool well enough, especially in such hot places like Cali/Arizona, especially with traffic and a/c.

1) You would need a 16"x26" fmic for the dual shroud, or about 13"x26" fmic for two 12" single fans.

2) The fans would still need to be right next to the radiator, but the fmic's get mounted way too far away (and lower) from the radiator.

IMO, the only way for that idea to even have a chance of working would be

1) no a/c condenser between the fans and radiator. Condenser removed or moved elsewhere.

2) And modified the placement of the fmic and/or radiator so close to each other that you could put an aluminum shroud on the radiator and have the fan

blade covers from the fans on the fmic sit inside the aluminum shroud as close as possible to the radiator (like less than .25").

3) And a good sealed ducting setup.
 
I do understand the fans being far from the radiator will not perform the same as being close of it,, but at the same time all the air the fan pulls from the front will come out through the radiator, so basically it will be the same amount of air,,, obviously all around will be sealed (duct) so there is no where the air will scape.
Am I missing something here????
 
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For the record,

I would like to announce that the 490 Fal Kit (dual 12" fan) fits as pusher with some modifications to the shroud and here are some pics to show you guys.

I will do another thread to how to install a fal #940 kit.
 
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For the record,

I would like to announce that the 490 Fal Kit (dual 12" fan) fits as pusher with some modifications to the shroud and here are some pics to show you guys.

I will do another thread to how to install a fal #940 kit.
Did you start another thread on this would be interesting to see. I also have one spal pusher and puller do I am hoping that will suffice
 
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