10. 1. the clutch engages and the fan starts turning. directly to the front of the water pump. The Rear or Exhaust side (the side that the air comes out of) of our fans will always be the side that houses the fan motor. Running engine temperatures well above or below recommended temperatures could cause damage. Talk with one of our specialists to help you build the system for your vehicle, engine size, and driving habits. A fan without a shroud is better than no fan. All shrouded fans should be on the engine side of the radiator. designs to address these issues: - these fans have flexible blades that as engine rpm increase, the blades flatten out The relative merits and technology of curved vs. straight fan blades have been debated for some time. Looking to install Flexxaire on your machine or integrate a Flexxaire cooling fan into a new design? A ceiling fan should rotate counterclockwise in the summer, so the blades push cooler air down in a column. With its overall thickness of 3.26 inch and an overall diameter of 16.73 inches, the AUTOSAVER88 Black… The larger the engine, the more cooling its radiator will require and Running a higher pressure cap to prevent boil over is putting a band-aid on another problem that needs to be fixed. When a vehicle is moving, a pusher fan can obstruct airflow due to its positioning in front of the radiator. The controller will have a screwdriver adjustable set point so you can tailor the turn on point to your needs. It stops the flow of coolant through the radiator until the coolant reaches the thermostat's preset temperature. You can install two small fans side by side and add their CFM rating together to create a "big" fan. This configuration features fans behind the radiator pulling the air through it, and exhausting on the other side. Some times you need a little extra airflow at slow vehicle speeds to keep your car or truck cool. 5. The controller (low power) controls a relay (high power) A 50/50 mix of coolant and distilled water provides the best overall cooling efficiency. Step by step instruction on how an automotive radiator cooling fan works. Electric radiator fans are available in both pusher and puller designs. Mechanical fans operate off of the engine's power and are usually connected 1801 Waters Ridge Drive, Lewisville, TX 75057 . Mechanical fans are excellent for a coolant system that requires a constant engine temperature. Shrouding your radiator lets the fan pull air through the entire core. Contact . By: AUTOSAVER88. to the wheels and not be wasted on accessories. Electrical fans can either push air through the radiator or pull air through it. 4) Check your radiator cap. The thermostat controls engine coolant temperature. You must have a radiator design that allows the air to pass effectively through the radiator (wider and taller is better than thicker). Do not mount exhaust fans on the bottom of the case; since hot air rises, a bottom-firing exhaust fan will be working against physics by expelling slightly cooler air instead of warmer air. It allows you to turn your thermostat up a few degrees. They are controlled by either the engine's control unit (ECU) or by a separate controller that monitors see if you can easily spin the clutch fan with the engine cold,. //-->. On indoor fixed installations like diesel gen sets, the fan blows or pushes air from the engine side to the outside. 3) Check your belts and hoses. Use the proper water pump pulley ratio. Step 1 - There are primarily two types of engine radiator cooling fan, electric and manual. Pusher fans mount on the grille side (front) of the radiator core and push air through the radiator core. This is the best ceiling fan direction for air conditioning since it makes the air feel cooler than it is. There is the option of connecting the controller to an always HOT 12V line so that the radiator will still cool after the ignition is off. The full product line now includes the patented Flex-a-fit aluminum radiators, electric fans, belt-driven fans, oil coolers, Mojave heaters and Flexite windows. An electric fan is preferred because when you need a fan the most (at idle or cruising speeds) an electric fan is delivering maximum air independent of engine RPMs. 12" inch Slim Fan Push Pull Electric Radiator Cooling Fans 12V Mount Kit Unversal Black. As the water pump turns via a rubber belt connected to the cranshaft, the fan rotates. Only choose a mechanical fan over an electric fan if it's your farm tractor. by an electric motor. Independent tests have shown that even with a pusher style fan mounted only 5/8 of an inch away from the face of the radiator, there is still a vast amount of air that escapes from around the skirt between the radiator and the fan blades. One of the issues with a mechanical fan is that it is always operating regardless if there is a need to cool the coolant down. Fresh airflow enters through the grille, then is pushed through the radiator core, and exits out the back side of the radiator. Puller-style fans mount behind the radiator and draw air through the core. Always use a thermostat. Mounted on the engine side of the radiator, a pull fan does not interfere with airflow at highway speeds. Slipping belts or collapsed hoses mean trouble. Higher operating pressure places additional stress on the entire engine system and increases the potential of hoses bursting and possible injury. Proper maintenance (regular flushing and changing of coolant) will extend the life of your system. Make room for an adequate cooling system in the design of your engine compartment. Puller … For example, on a '32 Ford, the area of a 15.50" fan is about 189 sq. However, some longitudinal (front to rear) mounted engines use the electric fan as well, but they usually have an engine-powered cooling fan. Electric fans use less power than a mechanical fan and are the choice where gas mileage is a concern and if you want to make sure that the most engine HP gets A puller fan on the other hand sits right behind the radiator. These parts consist of the radiator, fan shroud, Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35.00+. There are two modes of operation on most electric fans and they are categorized by the direction of air flow through the radiator: The fans operate on the 12 Vdc from the vehicle's electrical system and most can easily have their direction reversed by reversing the polarity of 9) Check your water pump. When planning your performance vehicle, remember that you're building it to drive, not to sit and steam. If a blade is angled down and the fan turns in the same direction as the blade angle, it will blow forward. And we proudly make our products in the U.S. , the hotter the water has to get to boil. Performance cooling products for the automotive market. Primary electric fans (pullers) are designed to mount behind the radiator and replace a factory belt-driven fan. "stable" once the engine is complete warmed up. It should draw air through the radiator from front to back. Understand the operating temperatures of today's modern engines. If you are having cooling problems, begin by looking at the least expensive fixes first. We’ve made it simple to start. Talk with one of our specialists to help you build the system for your vehicle, engine size, and driving habits. It is essential to use a premium coolant that protects the radiator, other metal parts, and seals. This article pertains to all vehicles. ... which will cause the fan to spin the opposite direction. google_ad_slot = "6369798871"; google_ad_width = 728; Exhaust fans go on the rear or the top. Preference should be given to a "pull" vs. a "push" fan. Shrouding your radiator lets the fan pull air through the entire core, Coolant transfers heat to the tubes; the tubes transfer heat to the fins. Likewise, if the blade is angled down and the fan turns the opposite direction, the reverse is true. pull air through the radiator from the front of the vehicle into the engine compartment. Get it as soon as Wed, Jan 6. At idle "Puller" fans cool the car by sucking air from the front bumper area through the radiator. when it is needed. is better than no fan. $9.99 shipping. 99 $50.58 $50.58. This means that the fan is only on Mechanical fans attached to a water pump, using power needlessly. Fans that move 2000-2300 CFM's are worth the investment. the vehicle was running on the road. One pound of pressure raises the boiling temperature by 3°F. 7) Clean the radiator of foreign materials. American Volt sells 12V automotive electric radiator cooling fans, thermostat switch kits, auto fan relay wiring harnesses, adjustable thermostat controllers ... How do i reverse fan direction? Consider the investment compared to the total cost of the car. the 12V at their terminals or physically reversing the fan blade. With a pusher fan, air would push out from the edges - reducing air velocity into the front of the radiator. The electric cooling fan uses a direct current (DC) electric motor with a thermo switch, module or computer control to turn it on or off, depending on coolant temperature or AC operating condition. It is a setup where the radiator is sandwiched between 2 sets of fans, which blow in the same direction. ; the core of the radiator is approximately 371 sq. The result is a slow oscillation of the temperature gauge reading. With a puller fan, air would be drawn into the fan from the side gaps instead of from the other side of the radiator where it should be. A pusher fan sits in front of the radiator. A manual fan is connected to the engine drive pulleys and is controlled by a thermo fan clutch which senses radiator heat and engages when the engine is running at higher temperatures. An unshrouded fan is moving air through only the portion of the radiator equal to the surface area of the fan. google_ad_client = "ca-pub-5724184763039528"; Pusher Fans, Puller Fans, or Reversible Electric FansDave blows away any questions about automotive electric fans. An example of a typical cooling fan shroud, which directs air where it's meant to go. Copyright 2020 Standard Motor Products, Inc., Designed & Developed by Multimedia Solutions 99 percent of all stock cars are puller fans that pull air through the radiator. in. If you are adding an electric fan to your ride, you can There have been several mechancial fan Legal | Privacy. Pusher fans are used typically where there is a limited amount of space for a properly sized puller fan. Consider airflow and how a radiator uses it to cool. This overdrive provides proper coolant flow from the engine and through the radiator. First things first. The use of a coolant that contains no silicate is recommended. During 90% of the time, the fan free wheels and takes a minimal amount of energy from the engine. Use an electric fan. drive. Operating your engine within its temperature parameters reduces wear, helps control emissions and turns any moisture in the crankcase to steam where it is removed by the PCV system. google_ad_slot = "1939599277"; There are two modes of operation on most electric fans and they are categorized by the direction of air flow through the radiator: Pull fans: these fans pull air through the radiator and are located on the engine side of the radiator. Plan adequate space for the cooling system including the radiator, fan, shroud, overflow tank, and mounting brackets. There will be a temperature sensor that when it reaches a preset temperature the fan will turn on. It works Check here for special coupons and promotions. . Generic 12″ Electric Radiator Cooling Fan. You must consider how the heat will be evacuated from the engine compartment. which turns off and on the fan. A pusher-style fan can be used as an auxiliary cooling source, but you should sure make the fan covers as much of the radiator … If your engine is designed to run at 200°F, a 14-16-pound cap should be sufficient. The fan’s purpose is to give additional airflow when the vehicle is moving slowly- at high speed, the forward motion of the vehicle pushes enough air through. One pound of pressure raises the boiling temperature by 3°F. You can't $42.99 $ 42. Most of today's engines operate in the 180°-210°F range. You must consider how the heat will be evacuated from the engine compartment. An unshrouded fan is moving air through only the portion of the radiator equal to the surface area of the fan. Mechanical fans operate all the time, as long as the engine is turning, they are rotating and pulling air. View our fan system -> But, consider this - at idle or cruising speeds, you need the entire cooling system working at its optimum. For a 30-35% overdrive, the crank pulley should be approximately 7 7/8" and the water pump pulley approximately 5 3/4". Electric fans are rated by how much air they move in cubic feet per minute or CFM. /* RT66-Link120x90 */ /* RT66-Link728x15 */ ; air moving through the fins dissipates the heat from the radiator. You can easily tell when the clutch fails, the clutch seizes and the fan turns constantly - your engine becomes unusually noisy! But, consider this - at idle or cruising speeds, you need the entire cooling system working at its optimum. So a fan mounted in front of the radiator will be a “pusher” fan: blowing air over the radiator with a positive pressure. the larger the CFM rating of the fan. 6. This means that almost 49% of the unshrouded radiator is not receiving any benefits from the fan. Electric fans are powered by an electric motor. Another issue is that at high rpm, there could be These improve the horsepower and torque delivered to the wheels by eliminating the parasitic drag of the stock belt-driven fan. 9. Since the invention of the transmission cooler by Mr. Perry Hayden in 1961, Hayden has continued to add innovative products to meet the needs of its customers while investing in c To test, What is push-pull? For example, on a '32 Ford, the area of a 15.50" fan is about 189 sq. purchase reasonably priced simple to install electric controllers from any parts house. - these are regular fixed blade fans that have a free wheeling clutch mechansim that when a specified temperature is reached, with the parts of the coolant system that set the maximum temperature that the engine will work at. More than a reversing fan, the Flexxaire Fan System is the world’s leading smart airflow system, specifically designed for the heavy machinery equipment. ; the core of the radiator is approximately 371 sq. 2) Shroud your fan. The positive wire coming from the electric fan will connect to one of two red wires on your relay while the negative wire needs to go to ground. Notice that the fan is located on the radiator hose side of the radiator. Only choose a mechanical fan over an electric fan if it's your farm tractor. Protect your system with the recommended coolant. If you mount the radiator and its fans too close to a device pushing air in the opposite direction it can cause a stalemate with the air and in turn give … You may Consider the investment compared to the total cost of the car. They are often called flex fans. 16 Inch Electric Radiator Cooling Fan Mounting Kit & 175-185 Degree Thermostat Relay Switch Kit Black. 1801 Waters Ridge Drive, Lewisville, TX 75057 . A 16-pound cap raises the boiling point to 268°F. Copyright 2021 Standard Motor Products, Inc., Designed & Developed by Multimedia Solutions Consider your engine's normal operating temperatures when selecting your radiator's cooling capacity. the temperature. Contact . The higher-rated the pressure cap, the hotter the water has to get to boil. google_ad_height = 15; Pollution laws, new oil blends and higher combustion gasoline have forced engine design changes that have increased operating temperatures over the past decade. Fans move air through the radiator assisting in cooling the engine. Flex-a-lite invented the Flex Fan and holds the patent for the first electric fan for the automotive aftermarket. The temperature will rise, reach a certain temperature then the fan will turn on and cool the engine Presenting another universal but budget-friendly model- … You need a controller to turn off and on the electric fan at the proper temperature. You need sufficient openings to the radiator that channel adequate air to the entire surface of the radiator. Running a higher pressure cap to prevent boil over is putting a band-aid on another problem that needs to be fixed. First, which is better; Pusher-style fans or puller fans? A-Team Performance 130031 Electric Radiator Cooling Fan Cooler Heavy Duty Wide Curved 10 S Blades 12V 3000 CFM Reversible Push or Pull with Mounting Kit Black 16 Inches. The direction a fan blows air is always determined by (A) the shape of the blades (sometimes called propellers) and (B) the direction they turn. want to use this option if you have a turbo motor where heat can be deadly to engine components. Davies Craig conducted a thorough research program to formulate the design of fans in which several design types including straight blades and curved blades with and without a ring were considered. in. //-->,