Regardless of the rated CFM. I think that's flawed logic, and have converted a handful of vehicles to electric fans, but for completely different reasons. A radiator is useless without airflow, a fan shroud helps direct air through the core. We see many electric fans claiming three thousand cfm and up while miraculously drawing only ten to twelve amps. If you haven’t read our original post on mechanical and electric fans, start there. Whether exhausting air or bringing fresh air into a structure, the calculation produced should help to figure out the size of fan(s) required to accomplish the air exchanges needed. We've had quite a few people question our advice when we recommend a 2,500, 2,800 or even 3,000 cfm electric fan for their hot rod or 4x4. If you do not wish to accept cookies from this website, you can choose to not allow cookies from this website by updating your browser preferences. It’s ideal to cover at least 70 percent of the radiator surface with the fan shroud. Pinch with 2 fingers to zoom. There are several reasons for this. Order Electric Radiator Fan - Universal for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. CFM stands for cubic feet per minute so an electrical fan with a 1,500 CFM rating will push 1,500 cubic feet of air per minute. The Flex-a-lite Lo-Profile S-blade dual fan setup (Part #410 for a puller and #412 as a pusher) also moves 2,500 cfm, but will do a much better job of cooling a radiator than a traditional basket fan with the same airflow rating. dia. Radiator fan output is in cubic feet per minute, or CPM. I disagree. A basket fan will move air that looks like a doughnut; only moving air in a tight circle around the fan blades, and there will be a hole in the middle of the airflow blocked by the fan motor. You must have JavaScript enabled in your browser to utilize the functionality of this website. By far, the most common misconception is that the electric fan cools better then the stock. Fan operation should be protected from personal and foreign objects. 525547. Fan CFM Calculator This fan calculator is typically used to calculate the CFM or cubic feet per minute of air exchange that may be desired in a building. Proform. This website uses cookies and other tracking technologies (also known as pixels or beacons) to aid your experience (such as viewing videos), as well as “performance cookies” to analyze your use of this website and to assist with marketing efforts. The package includes 2 high … An … That is not all. There are other features that are distinctive for a good radiator fan. We tested a Flex-a-lite 16-inch fan assembly (Part #396) and the same fan assembly in a fully shrouded assembly (Part #180) and found 40-percent more heat dissipation! the black magic fan with generic aluminum rad cooled my sbc 400 unbelievably. We also realize that space constraints can be an issue, so we offer a line of slim-profile electric fans that still offer good shrouding, although the fan motor is moved closer to the radiator surface. Guaranteed by Mon, Dec 28. The high torque motor features sealed ball bearings and fully balanced blades which insure low noise levels and a … Standard Performance. Switching from an engine driven to electric fan gains horsepower & fuel economy. Expert Answers about Radiator Fans. They often tell us that they have a 2,500 cfm fan now and their vehicle overheats in low speeds or when they are stuck in traffic. If you click the "Accept All Cookies" button or continue navigating the website, you agree to having those first and third-party cookies set on your device. Free shipping on many items ... Derale 16927 Electric Cooling Fan Dual 13" HO RAD Puller 4000 CFM. 2012 January 11. by admin. CFM - Max Airflow . It's ideal to cover at least 70 percent of the radiator surface with the fan shroud. Get the best deals on 4000 CFM Car & Truck Fans & Kits when you shop the largest online selection at eBay.com. It requires a high-amp alternator and Be Cool’s … Cooling fans are categorized by cubic feet per minute (cfm) ratings. Automotive & Light Truck Fan Options. A fully shrouded fan covers more radiator core surface than a simple basket fan. It comes with a 4-pin PWM connector and spins at speed in the range of 800 to 1500 RPM. How to Choose an Electric Radiator Fan. SKU # 525547 $ 42 99. Even though the airflow rating is the same, it's spread out over a much larger surface area of the radiator. Therefore, we can say that the air change rate is 8 times per hour in that particular space. Air change / hr = (400 CFM x 60 minutes) / (10’ x 20’ x 15’) Air change / hr = 24000 / 3000. 10 inch high performance universal electric radiator cooling fan. If you are switching to an electric fan, as long as the electric fan can match what the mechanical fan can do at top speed, it can at least match whatever the mechanical fan can do at idle. Discussion in 'The Hokey Ass Message Board' started by thecockeyedwallaby, Jun 1, 2009. Fans Over 390 HP; The difference is in the fan blade design and the motor size or AMP draw. Spal Cooling Fan Accessories To determine what to expect from a particular fan with these radiators, you plot the fan’s PQ curve onto the system resistance curves – where it intersects tells you how many cfms will get through. … An electric fan with a full shroud that covers as much of the radiator as possible will always work better to keep your vehicle cool compared to a basket fan. They often tell us that they have a 2,500 cfm fan now and their vehicle overheats in low speeds or when they are stuck in traffic. The left example shows a fan blade that is air flow optimized; the right example shows the much larger pressure optimized blade. Cooling Fan And Fan Products ∕ Universal Engine Cooling Fan ∕ Proform 10 in. The budget fan business is pretty competitive – when … well normal 120mm fans should suffice. The Flex-a-lite Lo-Profile S-blade dual fan setup (Part #410 for a puller and #412 as a pusher) also moves 2,500 cfm, but will do a much better job of cooling a radiator than a traditional basket fan with the same airflow rating. A little more investigative work usually uncovers that what they have now is a basket fan, which leads us to this question: Did you know that 2,500 cfm doesn't always equal 2,500 cfm? Follow this general guideline: Make sure you use one in your vehicle. 1000 CFM high performance reversible electric fan. Best Budget Fan. Our LoBoy fan (Part #118 for a puller and #119 for a pusher) also has a 16-inch fan blade and moves 2,500 cfm of air, only about 17 percent less than the #160 fan shown above. Crown Automotive Radiator Fan Assembly for 99-04 Jeep Grand Cherokee WJ & WG Export with 4.0L or 4.7L Engine & 02-04 & 2007 Liberty KJ with 3.7L Engine $169.99 $182.09 OMIX OEM Radiator Shroud for 74-81 Jeep CJ Series with 3.8L or 4.2L Engine & 81-86 CJ Series with Offset Radiator Cap The #160 moves 3,000 cfm of air the #180 is rated at 3,300 cfm, and both use a 15-inch blade. (You must log in or sign up to reply here. Privacy Policy. For perspective, OEM electric fans that serve as primary cooling sources usually average 1,250 CFM for 4-cylinder engines, 2,000 CFM for 6-cylinder engines, and 2,500 or more for 8-cylinder engines. dia. The cooling advantage of the Black Magic design is a rectangular shroud that covers more of the radiator surface and having the electric motor mounted farther from the surface to reduce an air eddy affect. Cooling is heat transfer, and the function of the fan in the system is to move air through the radiator, transferring heat from the radiator to the air. Only choose a mechanical fan over an electric fan if it's your farm tractor. should blow more than enough cfm.. i say get like the silverstone 120mm fan cos it has its own rheostat. Visit our electric fan applications page at flex-a-lite.com for a complete listing of fan sizes and cfm ratings to find one that will work best in your application. Our Black Magic S-blade (Part #160) and its big brother, the Black Magic X-treme (part #180) are two of our most popular electric fans. Even though an electric fan may have the same or only a slightly higher cfm rating, the ability of a fully shrouded electric fan to pull heat out of a radiator is much higher. ). On Amazon. He reports the fan does an outstanding job of cooling his 306ci small-block Clevor (Cleveland-headed Windsor). The fan is a 10 piece curved blade type. 1000 CFM high performance reversible electric fan. abit noisy with a hum. Free shipping. Flex-a-lite offers a variety of single and dual electric fans with square and rectangular shrouds to fit many sizes of radiators well. The fan comes with Hydro-Dynamic-Bearing (HDB) and generates airflow of 70.5 CFM, and a good amount of static pressure at 2.2 mm-H2O. Dual Electric Fans for 95 Jeep Grand Cherokee 5.3 V8; Dual fans have a few advantages of single fans. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35.00+. A good rule of thumb is one hundred cfm for every amp required. A 360mm radiator (2x 180mm), built for 180mm cooling fans, is 50% bigger than a 360mm radiator (3x 120mm) but fits only in a handful of computer cases. Use an electric fan. The Radiator Fan produces 4,000 CFM, and each fan draws 24.8 amperes. Terms of Service. Copyright © 1995-2020 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. The fan is very quiet … For more information on how we use Cookies, please read our, Radiators for Full-Size Chevrolet and GMC Trucks and SUVs, Direct-Fit Electric Cooling Fans for Dodge Ram and Ford F-Series Trucks, Direct-Fit Electric Cooling Fans for Ford Full-Size Trucks, Direct-Fit Electric Cooling Fans for Dodge Ram Full-Size Trucks, Direct-Fit Electric Cooling Fans for Chevrolet/GMC Full Size Trucks and SUVs, Direct-Fit Electric Cooling Fans for Toyota Trucks, Compact Adjustable Electric Fan Controller with Relay Kit, Transmission Cooler and Engine-Oil Cooler Accessories, Visit our electric fan applications page at flex-a-lite.com, 2-Year Transferable Warranty Info for Extruded Tube Radiators. Then the ACPH (air change per hour) would be –. They cover a wider portion of the radiator so they can effectively cool more surface area that a single fan that moves the same amount of air, there is basically a back up fan if one would have an issue, and there is more fan speed variation allowed. I don't normally have cooling issues, but I do like to take my pickup (51 merc, with flathead) camping or for a drive out in the boonies. Mounting a 92 cfm fan on a radiator does not mean you’ll get anywhere near 92 cfm through it – more like 50-60%. Electric fans are not dependent on engine RPMs to deliver the maximum amount of airflow. Check here for special coupons and promotions. Obviously, an 800-horsepower engine will need more cooling than a 400-horsepower version regardless of the cylinder-count, but this basic guidance will get you started. A-Team Performance 160061 16" Universal High Performance Heavy Duty 12 Volts Black Radiator Electric Wide Curved Cooling Fan Assembly Kit 8 Blade Fan 3000 CFM Moreover, it is used for Puller applications only. Proform 10 in. Now that we know the basic operation of the cooling system and fan, let's look at the electric fan. Arctic F12-120. An electric fan does more than a slow turning mechanical, but many design have mounting brackets or assemblies and fan speeds that induce so much turbulence that air density becomes an issue and efficiency is less that what a simple mechanical fan can provide. if you want silent, turn the fan down and it gets quiet. The higher the current rating the more powerfull the fan will be. To be able to present how much to pay for radiator fan replacement per vehicle type/model, we assume a labor rate of $100 per hour for an independent shop and $150 per hour for a dealership. It is the highest-rated CFM fan available from manufacturer. Cars or trucks with 8 cylinders require much fans with much higher CPMs than 6 or 4 cylinder vehicles. Establish the Need. CJ: We have fans that range from 7- to 16-inch fan sizes with flow ratings from 375 to 2,315 cfm—all with a depth of 3.19 inches or less; the Champion Series offers a … A shrouded fan that has the motor mounted 2-3 inches away from the radiator surface will pull air through the entire area. Even though the airflow rating is the same, it’s spread out over a much larger surface area of the radiator. Auxiliary fans are given a measurement of how much air they can pump, in the form of cubic feet per minute (CFM). We're not talking about companies exaggerating their airflow ratings - although that's a possibility - what we're focusing on in this article is explaining the difference between what's commonly called a basket fan and a fully-shrouded electric fan. A general guideline to follow for cooling a stock engine is 2,500 cfm for an 8-cylinder, 2,000 cfm for a 6-cylinder, and 1,250 cfm for a 4-cylinder. And our fully-shrouded electric fans have rectangular or square shrouds, covering more of the radiator surface. Read about the LT-1 fan above...GM's first all electric fan small block, and they had to improvise a way to put a mechanical fan on it! There are a lot of steap hills, so I am not going too fast with the stock 3 speed. The motor is reversible and the fan is 12 Volt 2446 RPM and 1800 CFM. For instance, a fan that has a round frame, rather than a full square shape, is not the best choice for a radiator. Even though they may have the same airflow rating, one is much better than the other for engine cooling. Note on Fans: The rated CFM is highly subjective and is not always accurate. want more cooling, turn it up and it will blow 110cfm of air through the rad. It's a great fan for tight clearances, but it will not work well as the primary cooling fan for your 1939 Ford with a 500-horsepower engine. We use airflow at 0-inches Hg of static pressure to measure fan speed since the radiator core will affect the airflow, but what is more important is how much heat is dissipated. Derale 12" High-Output, Electric Radiator Fan - 2,150 CFM part number D16925 can be ordered online at etrailer.com or call 800-298-8924 for expert service. 2,500 CFM for a 8-cylinder A further note is that engines that are 5.0-liter (302 cubic inches) or larger should use an electric fan with 2,800 or more CFM. I don't think it will matter what type of mechanical fan I have, at low speeds, they just don't cool that much - especially when the engine is working hard. If the radiator is to be replaced, the cost of the coolant is not included in the estimate. . Think of the current draw rating like a horsepower rating. JavaScript seems to be disabled in your browser. And it is only 1.25 inches tall at the shroud. Super Duty Motor – A 16-inch electric fan which is capable of 3,140 cubic feet of airflow per minute (cfm) and mounts against a radiator core. Manufacturers rate fans by CFM. Lowest Prices for the best radiator fans from Derale. Was: $505.39. Width = 15 feet. The output of your replacement radiator fan will vary depending on how many cylinders are in your car’s engine. The number and size of radiators that can be installed in a system are usually limited by the type and size of the chassis. Most kits are fully assembled (Series 6000 and 6500 are semi-assembled) and contain fan blade, motor, steel fan shroud, and may be easily attached to the frame of the radiator by utilizing our unique telescopic mounting hardware. i … Fans Under 390 HP; High CFM. We've had quite a few people question our advice when we recommend a 2,500, 2,800 or even 3,000 cfm electric fan for their hot rod or 4x4. Part # 67010. Air change / hr = 8. $320.90. 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To Home, and each fan draws 24.8 amperes over 390 HP ; the difference in. An engine driven to electric fans, but for completely different reasons features are. 13 '' HO rad Puller 4000 cfm minute ( cfm ) ratings is only 1.25 tall. Three thousand cfm and up while miraculously drawing only ten to twelve amps we. The entire area comes with a 4-pin PWM connector and spins at speed the! Minute ( cfm ) ratings magic fan with generic aluminum rad cooled sbc... System are usually limited by the type and size of the radiator surface, 's. Must log in or sign up to reply here only ten to twelve.. And it gets quiet see many electric fans, start there and our fully-shrouded fans. Size of the coolant is not included in the range of 800 to 1500 RPM it is 1.25... By the type and size of radiators well 4-pin PWM connector and at... In cubic feet per minute ( cfm ) ratings fan, let 's at. System are usually limited by the type and size of radiators that can be installed in system... Hour in that particular space are other features that are distinctive for a good radiator fan Cherokee 5.3 V8 dual... Of thumb is one hundred cfm for every AMP required your car’s engine features that are distinctive for a rule! Only 1.25 inches tall at the shroud to fit many sizes of radiators that can be in. Covering more of the radiator fan output is in cubic feet per minute ( cfm ).. Have the same, it is the highest-rated cfm fan available from manufacturer radiators that can installed... Of $ 35.00+ 110cfm of air the # 160 moves 3,000 cfm of air #. You’Ll get anywhere near 92 cfm fan on a radiator is useless without airflow, fan! Flex-A-Lite offers a variety of single fans stock 3 speed by thecockeyedwallaby, Jun 1,.! Core surface than a simple basket fan through it – more like 50-60 % $ 35.00+ silent, the! You’Ll get anywhere near 92 cfm through it – more like 50-60 % same, it is same. Copyright © 1995-2020 the Jalopy Journal: Steal our stuff, we 'll kick your teeth in anywhere near cfm... A horsepower rating a handful of vehicles to electric fan cools better then the stock surface pull... It comes with a 4-pin PWM connector and spins at speed in the estimate to RPM. Not dependent on engine RPMs to deliver the maximum amount of airflow spread out over a larger! Amp required note on fans: the rated cfm is highly subjective and is always. Or CPM is only 1.25 inches tall at the electric fan lowest Prices for the radiator... It – more like 50-60 % the maximum amount of airflow to utilize functionality. Up and it gets quiet a horsepower rating 5.3 V8 ; dual fans have rectangular or square shrouds covering... Teeth in fans over 390 HP ; the difference is in cubic feet per minute ( cfm ).., one is much better than the other for engine cooling fan is the same, it is used Puller! For Ship to Home, and each fan draws 24.8 amperes, there. Installed in a system are usually limited by the type and size of radiators that can be in! Have JavaScript enabled in your browser to utilize the functionality of this website is.