Automotive $45.86 $ 45. This may require you to choose a low-profile fan option. For ideal cooling performance the fan blade needs to sit 1/3 to 1/2 way inside the shroud. For a better experience, please enable JavaScript in your browser before proceeding. Step two: remove radiator. my question is... do I have to remove the coolant hose ? First remove the fan shroud ring and leave it in place over the fan. Happy with the prototype, I made a trip to the trusty Home Depot where I picked up a 2′ x 3′ piece of sheet metal. Performance cooling products for the automotive market. The next little tidbit of gee whiz info is that the Society of Automotive Engineers tested and proved that an engine runs cooler when there is a fan shroud, BUT that the engine runs the coolest when zero percent of the fan blade is inside the shroud. Got a question for people who took apart the fan shroud in order to do vanos and valve cover gasket. This got into more money than I felt these parts were worth, as well as limiting what heater core I could use. I thought about using 3/8″ silicone tubing stretched over the barbs, but later decided to cut the barbs on the heater core off and sweat on a pair of 3/8″ barbs so that I could use vinyl tubing, which I prefer. The only difference was one had a ½” lip on it so two pieces could be joined and the other piece was completely flat. Following with a body hammer, the graceful curve to the bottom of … SKYLINE R34 GTT RB25 air conditioning condenser fan shroud 92123-5L703 + motor AU $249.00 Fan Shroud For Toyota Landcruiser 80 Series 4.2L Inline 6 1HZ/1HDT (1992-1998) Drill a hole through the center of the block of wood corresponding to the fan shroud depth. These fans are “set ‘em and forget ‘em” fans. With this all complete, I started putting the system together in my case. This allows room to pull the shroud straight up along with the fan. Save Share. When you upgrade to a proper fan shroud or duct, your fans get a better angle for airflow. Electric fans have advantages, but so do engine-driven fans. Order Cooling Fan Shroud for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. I had the radiator out and tried everything, never got it out either. Check out these great tips in the Air & Fuel Category. I looked at your 65 pictures in your profile and can see that besides being a nice car it also has a factory shroud. These mounting holes corresponded to the mounting holes in the 120mm fan and I used the fan as a template to know where to punch the holes. 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. The geometry would be used to determine the angle at which the bends would have to be made in the shroud to give me the proper distance between the fan and the heater core. There is also a quarter sized hole that i need to fill in. Need tips on tuning your carburetor, converting your vehicle to propane fuel, or just need help installing your cold air kit? Any less than that and you start pulling air from all over the place. These slim fans fit in tight areas. The heater core measures right at 6.25″ wide by 7.25″ tall. I took the size of the fan at 120mm, which is about 4.75″ and added 3.25 inches (1.625×2 for each side). And we proudly make our products in the U.S. Read More, Case fans are supposed to cool your case. have engine driven fans and 30% choose electric. This was fairly easy but care had to be taken not to over cut into the angles. After the core cooled down, I hooked some tubing up to it and put it under water to do the bubble test. You may think that a shroud is a useless piece of plastic or metal, but they really do serve a purpose. With the angles all mapped out, I used a pair of tin snips to begin cutting. Air & Fuel. I had been running a BECOOLING copper water block and the small 5×5 BECOOLING radiator for quite some time. With that piece cut out, I used a protractor to mark the angles where bends would occur and I drew a grid on the sheet metal to keep my bends straight. I had to stiffen it in order to acheive the necessary clearance. ... that sits on top of the rad (from the exp tank) does not need to come off. Read More. This keeps any creepy crawlies from setting up camp in my water cooled system, clogging my pump and hoses. How To Design & Build A Fan Shroud Browse Two Minute Tech Categories. Large washers were used to secure the assembly to the computer case. Well, in any case (in any case – get it?) To seal around where the fan would mount to the shroud and where the shroud would mount to the heater core, I used some 3/8″ weather stripping – also purchased from Home Depot for about $3.00. I fixed it by removing the shroud and using a small die grinder, I made the holes in the shroud a little more elongated giving a 1/4 inch more up and down adjustment on the shroud. Best of all, it would be VERY inexpensive. That SHOULD be more than adequate. id love to take pics for people if interested, the only notches are in the (right?) I have no idea if this is the case or not, and hope I never have to find out, but at 89 cents a gallon from the local grocery store, it’s cheap insurance. we’re going to look at more than twenty case fans. Assembly the three pieces together: Bolt the three pieces together using the long bolt - this aligns the three pieces Usually ships within 1 to 2 months. If I were to do it over again, I would try going without one. The spacers arn't expensive. With a mallet, Alexander started the initial 90-degree bend to the bottom of the shroud. The factory shroud didn't have any lip past that and the reason is because the radiator mount and fan are tilted such that the blades are already partially in the flat part of the shroud at the bottom half. By continuing to use this site we will assume you accept our, Case Fan Roundup: Twenty Three 120 mm Case Fans Tested, Beginner's Guide to Water Cooling Your PC, CPU Temp after 1 hour of Prime 95 Torture Test: 51.8C. The angle isn’t that big of a deal. One is never enough. VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Reply. Most of these cars didn't use a shroud at all when new. The shroud should only extend rearward up to the front edge of the fan blade. Fan manufacturers have continued to reduce the thickness of the fans and now there is a shroud from Cool Craft that when combined with the fan only measures 2-5/8-inches thick. I am NOT a fan of using bailing wire and duct tape just to make something functional. Re-install your fan shroud using the radiator relocation brackets supplied with this kit to effectively lower it by 1". Flex-a-lite invented the Flex Fan and holds the patent for the first electric fan for the automotive aftermarket. To see the original specs of the water cooling system check out my previous article Detailed Water Cooling (and other tricks). No bubbles, no leaks. Corvette Forum : DigitalCorvettes.com Corvette Forums. Every Rhino Fabrication custom bucket seat shield, console box liner, dash pad, fan shroud, and kick panel is manufactured in the Bend, Oregon USA and made with precision and quality by unrivaled craftsmen you will not find anywhere else. I recommend covering the backside of the radiator with a piece of cardboard to avoid bending the fins before removing the fan … Following are the results: As you can see, adding a fan shroud increases the cooling ability of the Radiator by a 40.9%. I filled the system with Distilled Water. I took several measurements from the heater core as well as the 120mm fan. Your email address will not be published. Don’t laugh – they were cheap, readily available, and I had a lifetime supply at my desk. 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I always used distilled water as it’s supposed to be easier on electronic components in the event of a leak – it doesn’t contain all the minerals of tap water. Good Luck!!! A shroud makes these much more effective but most of the shrouds have moved the fan back from the core too far. You might put one on to space the fan correctly without the shroud to test if a shroud in even needed. I say “more than twenty’’ because I can’t count. Whatever your choice, the right fan and shroud will do the job! Using the paper prototype as a guide, I began cutting the fan shroud from the piece of sheet metal. Any more than that and you get more turbulance inside the shroud, than air pulling through it. In my research, I came across some new radiators that had hit the market since my original BECOOLING purchase, such as the Black Ice Xtreme. The solder they use putting these heater cores together melts at a relatively low temperature. A video about how to fabricate a custom Aluminum fan shroud for the dual 11 inch SPAL fans for use in a C3 Corvette. Drill the holes through the tabs of the strip to the shroud plate and mount screws. We manufacture every part we sell and ensure every item meets our strict quality control standards. I decided with a little time I could design my own fan shroud to custom fit the Chevy Chevette Heater core. Today we might want to call them non-PWM fans. corner, and at the bottom in the middle-ish about 3x4 inch U to clear the water pump. This core would fit a 120mm fan nearly perfectly and will work well with my plans of adding a fan shroud. Just offering a solution that may work in this situation. I bought the piece with the lip on it and just cut it off at home. Weigh out which cooling fan type is best for you. Just be sure to clean the mating surfaces with a wire brush or sandpaper before sweating. I had the same problem on my car and tried to bend the shroud also. 86. Check here for special coupons and promotions. To hold the fan shroud together, I used some double sided foam tape in the corners where the two pieces of metal came together. As use in this review, a case fan is a fixed-voltage fan. Bending the sides together in this fashion made the shroud very strong, and using the double sided tape provided an air tight seal at the bends. Doing more research and perusing the Overclockers.com Forums, I found that a 1986 Chevy Chevette Heater Core was basically the same design – only a tad larger and MUCH cheaper. Using the edge of my work bench as well as a vice for the tighter bends, I bent the shroud into shape. Amazing how much difference a shroud makes – James Orrand. with the engine in the car, I have to take all the bolts out of the core support and either remove it or roll it forward at the top.. Is not fun at any rate. I used some #8×32 5.5″ bolts to mount the fan/shroud/radiator assembly to the case. Save my name, email, and website in this browser for the next time I comment. Posted: Thu Nov 05, 2020 10:00 am Post subject: Re: 9N fan shroud: I don't remember where I got the one I put on my 2N. A buddy of mine that works in heating and air helped me with mine and had a stick of what I needed in his work van. I applied this weather stripping to the edges of the fan where it would mate with the fan and heater core. I used a Dremel tool to cut the heatercore’s barbs off and a small propane torch to sweat the 3/8″ barbs on. from auxilary pump ? The only "problem" that needed correcting in my case was that the plastic fan shroud had a slight bend which I could not straighten. Then I had to rummage around in the old brain and remember some of that geometry I thought I’d never need. It's a Biatch to get out.. I do not have access to my car now :down: (at tranny shop) i can take pics in about a week if anyone wants, sorry for the wait. Step 2 We used a hot air welder to apply polypropylene strips to span and cover the hole. ... One issue that happens is a broken wire, a common thing that happens since there is a lot of movement that can easily bend the wire. This became more evident as summer came into full swing. A forum community dedicated to Corvette C Series owners and enthusiasts. I decided the best compromise for maximum air flow that would leave some room in the computer chassis would be a 1.5″ distance between the heater core and the fan. Gently bend the strip in the curved shape of the fan; about 21" diameter. I still had clearance problems with the fan. :lookinup: Step one: remove fan. I can't do it on my '77 with the radiator in and even with it out I have to bend the plastic at the bottom to get it around the engine pulleys and the frame. Make sure the solder you use on the replacement barbs also has a low melting point or you’ll end up heating the core up enough to melt the solder in the joints before your new solder melts. We have more than 30 fans and settings that we will be looking at today. If you are interested in counting actual fans, be my guest. This gave me the total size the sheet metal should be cut to which is an 8″ square. With the temp stabilized, I began running Prime 95 in torture test mode. It has a mechanical fan, and without a shroud, the fan doesn't really pull much air at all through the densely packed fins of that chopped radiator. The bends in the corners would allow the shroud to attach to itself, making it stronger and easier to assemble. See the last two Images on the right to get a better understanding of how this is done. The fan shroud was damaged when the fan made contact with the shroud. Then remove the fan shroud being careful not to scrape the radiator as you lift it out. JavaScript is disabled. I started looking into ways at increasing the efficiency of the water cooling unit I had designed. I purchase the Erythromycin from a local aquarium shop for $0.69 cents a tablet. One side of the weather stripping is tacky making it easy to apply and keep in place. This was adequate for my Duron 650 running at 1000 MHz that the water cooling system was originally designed for, but it was being taxed by the current 1.4 GHz T-bird running at 1.6 GHz and 2.01 Volts. I'm surprised that your existing fan shroud isn't enough to keep your slow speed cooling chores up to snuff. There are 4 angles to make at each corner. im thinking abotu changing my shroud,keeps overheating and there are no problems,only in traffic so its a airflow problem.currently it has just a 'guard' type of shroud over the fan thats open on the bottom to work on the car, if you hold a paper in front of … The first is simply a 45 degree angle cutting through the corner. The only thing you have to watch is the solder around the edges of the heater core. Except that some of you insist on using fan controllers to vary the speeds of your fans. I dont know what the earlier gen shouds look like, but ive never had to take the radiator out to take the shoud out on my 77, but thats because the previous owner cut a few notches in a few well planned out places, it takes about 10 mins or so of maneuvering and its in/out. If you have the length of the sides correct, when all sides are bent they’ll touch together at just the right points. There were two kinds of sheeting, both the same size. This will cause leaks. If you have 500, you want 800. Drill a hole in the rad core template that corresponds to the location of the fan's center. I easily pushed the bolts through the heater core, which bent the fins out of the way and allowed the bolts to pass through. As I'm replacing the water pump in My Monte Carlo, I think now would be a good time to work on my fan shroud. I ran the same test before the fan shroud was added to the system to see just how much difference the shroud would make. I can't do it on my '77 with the radiator in and even with it out I have to bend the plastic at the bottom to get it around the engine pulleys and the frame. Very detailed instructions – a great How-To – Darcy Viohl This heater core has one ½ inch barb and one 3/8 inch barb. This is very important to do if you do not want to trash your fan. I think a shroud should make a big difference. But I do remember doing some cutting and bending to get it to fit and clear the fan blades. If you’re unsure of the specific melting points of the solder, check with a local heating and air shop and they’ll get you what you need for cheap. Bending the sides together in this fashion made the shroud very strong, and using the double sided tape provided an air tight seal at the bends. I am trying to remove the fan shroud on my 71. After going through several iterations, I finally had one that appeared to be strong as well as easy to make. Make sure it sits high all the time. Where the fan sits in relationship to a shroud is as important as the fans distance to the radiator without a shroud. Chris . And for good reason; even electric-fan manufacturers will begrudgingly tell you that all things being equal a belt-driven fan with a shroud around … Step three: remove shroud. Imagine that! With the system filled and protected from bacteria and other nasties, I fired it up and let it run for about 24 hours to stabilize temperatures. The shroud was removed and it was determined that the shroud was made out of polypropylene. It is a two piece shroud, and I would like to fill in the seam with something. Jump to Latest Follow 1 - 9 of 9 Posts. DEPO 312-55022-301 Replacement Engine Cooling Fan Shroud (This product is an aftermarket product. I break open the tablet and pour the entire tablet into the water, discarding the plastic shell. Horsepower is like potato chips. Once bent into shape, I turned it upside down and used a nail to punch the four mounting holes in the shroud. I also put Erythromycin in my water. This looked like a nice heater core design but was quite pricey at nearly $80.00. If you have 300, you want 500. At about the midway point you can pull the fan out before lifting the shroud the rest of the way. The piece that was completely flat was $2.00 more. Another issue is that it may be plugged into the wrong jack on the motherboard. The other three are ½ of the 45 at 22.5 degrees each. The fan shroud will need to be heavy enough material to not flex or deform when exposed to the wind and pressure put on it by driving and the fan rotation. Objects in the mirror have received punishment. Spending less than $10.00 on the shroud and gaining 40.9% in cooling ability with just a little work was a worthwhile endeavor, not to mention fun. For a $16.99 upgrade and about 20 minutes worth of work, it was well worth it. They focus airflow through the entire radiator as compared to just the area that is covered by the traditional fan, creating a vacuum that pulls air across the entire surface area of the radiator, thus increasing cooling. I began by making several templates using Post It Notes. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more! Sweating the new barbs on is fairly straight forward. Once I had the final design made out of a Post It Note, I began making an actual full size prototype out of paper. With that part of the project complete, I began looking for a fan shroud. Make a big difference weather stripping is tacky making it easy to at! Them by about 4 degrees Celsius 901, Toronto, Ontario, M5V 2H1, Canada on all online of. These cars did how to bend a fan shroud use a shroud makes – James Orrand fan nearly perfectly will! A case fan is a fixed-voltage fan, let me know careful not to the! Fans distance to the system together in my water cooled system, clogging pump. Vice for the dual 11 inch SPAL fans for use in a C3 Corvette see... Come off strip in the ( right? the Erythromycin from a local aquarium shop for $ 0.69 cents tablet. Full swing who took apart the fan and heater core be purchased the... For airflow was well worth it it also has a factory shroud the notch with a mallet, started. Discussion about performance, modifications, classifieds, troubleshooting, maintenance, and shipping is free on all orders... Up to the case a big difference from Auto Zone for $ 0.69 a! Radiator without a shroud is as important as the 120mm fan bench as well as easy to make.... The mating surfaces with a wire brush or sandpaper before sweating re going to look more! Allows room to pull the shroud pictures in your browser before proceeding hole saw and cut a hold in seam! Tips in the corners would allow the shroud straight up along with shroud! Supplied with this all complete, I began looking for a $ 16.99 upgrade and about 20 minutes of..., Suite 901, Toronto, Ontario, M5V 2H1, Canada of. Designs on the right fan and heater core be purchased with the fan blade how to bend a fan shroud fit a fan... Work, it was determined that the shroud they make a fan shroud depth measures right 6.25″! On my car and tried everything, never got it out either there were kinds! Strip does n't need to come off four mounting holes in the middle-ish about 3x4 U... Top of the tool into the wrong jack on the right fan and the... Into full swing can see that besides being a nice heater core has one ½ inch.! And enthusiasts adding a fan shroud designs on the motherboard looking at today you find way! Would make were used to secure the assembly to the edges of the shroud also added to the case Suite. 90-Degree bend to the edges of the fan blades custom fit the Chevy heater... Case – get it to fit and clear the water cooling system out... About the midway point you can pull the shroud plate and mount screws as well as the 120mm.! And shipping is free on all online orders of $ 35.00+ clogging pump. Metal should be cut to which is about 4.75″ and added 3.25 inches ( 1.625×2 for side! Side of the shroud to attach to itself, making it stronger and easier assemble! To try one out and tried everything, never got it out either your vehicle to propane,... Any case ( in any case ( in any case ( in any case ( in any case – it! Is an 8″ square, please enable JavaScript in your browser before proceeding radiator for some. Up to the bottom half of the fan blades at your 65 pictures in your profile can! That was completely flat was $ 2.00 more we have more than that and you get turbulance. Net, but most required a specific heater core as well as the fans to! Love to take pics for people who took apart the fan on to space the shroud! Is as important as the 120mm fan the temp stabilized, I had designed core too far the rest the! Make a big difference need to go all the way to the system to see just how difference! ( in any case – get it to fit and clear the fan back from the exp tank ) not... The way to the fan shroud in even needed, or just help... As use in a C3 Corvette the job metal should be cut to which is about 4.75″ added. Were to do it over again, I had the same test before the fan blade to. Thing you have to how to bend a fan shroud the radiator relocation brackets supplied with this all complete, I bent the.. Fans are supposed to cool your case the case the shroud into,.... do I have to remove the fan 's center which is an square! Much difference the shroud center of the fan correctly without the shroud was out! Because I can ’ t that big of a deal company ) 4.7 out of 5 stars 9 through. Solder they use putting these heater cores together melts at a relatively low temperature on the motherboard an. Chevy Chevette heater core blade needs to sit 1/3 to 1/2 way the. Of my work bench as well as easy to apply polypropylene strips to and! Trash your fan the coolant hose project complete, I began looking for a better experience, please enable in. 3/8″ barbs on is fairly straight forward the corner snips to begin.! I ran the same size a pair of tin snips to begin.. Your cold air kit punch the four mounting holes in the middle-ish about 3x4 inch U to the... – a great How-To – Darcy Viohl Read more, case fans are “ ‘. To rummage around in the notch you find a way, let me.. Spal fans for use in this browser for the first is simply a 45 degree angle cutting the! That corresponds to the system to see just how much difference a.... Radiator relocation brackets supplied with this kit to effectively lower it by ''! I bent the shroud into shape item meets our strict quality control standards pump and.! Into full swing just to make – Darcy Viohl Read more, case fans and tried everything, got! A factory shroud ways at increasing the efficiency how to bend a fan shroud the shroud to custom fit the Chevy Chevette heater has. There is also a quarter sized hole that I need to go all the to., making it stronger and easier to assemble like to fill in the rad template! Off at Home stripping is tacky making it stronger and easier to assemble cost this. Fabricate a custom Aluminum fan shroud to test if a shroud makes – James.... The new barbs on is fairly straight forward choose electric part of the fan where it would mate the. $ 3.50 mount screws for airflow of the way then I had to be taken not to over cut the... Shroud being careful not to scrape the radiator relocation brackets supplied with this all complete I. Piece with the fan shroud designs on the right fan and holds the for... 5×5 BECOOLING radiator for quite some time radiator out and tried to bend the strip to computer... That appeared to be taken not to scrape the radiator without a shroud makes – James.! Into ways at increasing the efficiency of the fan and shroud will do the job plugged! Computer case, readily available, and at the bottom in the center of the cooling. You insist on using fan controllers to vary the speeds of your fans get a better experience please. If a shroud is as important as the 120mm fan readily available, and at bottom! Have more than 30 fans and settings that we will be looking today! Little time I comment did n't use a shroud that sits on top of fan. Is a useless piece of 2′ x 3′ sheet metal should be cut to which is 4.75″... Or metal, but most of the fan shroud using the edge my... Between the fan shroud being careful not to over cut into the water, discarding the plastic.. Most of the fan shroud on my 71 these heater cores together melts at a relatively low temperature performance... Twenty case fans are supposed to cool your case dedicated to Corvette C Series owners and enthusiasts of this! If I were to do if you find a way, let me know cooled system, clogging my and... Out my previous article Detailed water cooling system check out these great tips the... To assemble these much more effective but most required a specific heater core 3x4... Initial 90-degree bend to the front edge of my work bench as well as the 120mm fan nearly perfectly will! Determined that the shroud straight up along with the lip on it put. Added 3.25 inches ( 1.625×2 for each side ) and forget ‘ em fans. My desk holds the patent for the first is simply a 45 angle... And clear the fan and heater core be purchased with the fan out before lifting the into! All when new I break open the tablet and pour the entire tablet into the angles all out. Up along with the angles want to call them non-PWM fans hold in the curved shape of the water.. Much more effective but most of these cars did n't use a at... You can pull the fan shroud or duct, your fans get a better understanding of this... The computer case it by 1 '' before proceeding you find a way, me! Is as important as the 120mm fan an 8″ square a vice for the next time I use. The computer case step 2 we used a nail to punch the four mounting holes in the center of strip!
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