The only benefit to not having one is that there is no work involved in not installing one. To do this we are using a thick-core heavy-duty radiator, Cool Craft custom fan shroud with a Spal 16-inch electric fan, 180° thermostat, 185° Spal fan control kit, 16-lb pressure radiator cap and stainless steel overflow reservoir. The battery is what supplies ALL the current needs for the electrical system, the alt just keeps it "topped off". Electric fans are not dependent on engine RPMs to deliver the maximum amount of airflow. I'm 100% on the electric fan … Nissan didn't put in the fan shroud just to take up room. In some mild cases a fan shroud is not necessary, but I would always recommend them. These situations are when you need the fan to perform the most. - Take your electric fan and slide it against the radiator and screw in the torx screw. The Derale Tornado fans have a bit of a shroud built in, and they are close enough to the radiator that an additional shroud should not be needed. 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. Brackets were made by cutting two pieces of 3MM steel about 3.5" x 1.5" and 1.5" x 1.5" and then welding them at a right angle. A radiator is useless without airflow, a fan shroud helps direct air through the core. But in florida here i got my 20" 3 row non a/c radiator and and a 7 blade clutch fan and shroud. The radiator fan on your car draws air in from the grille and over the radiator, where it cools the coolant in the radiator. Shrouding. Here is where the drivers side shroud bolt is located. I’m expecting I’ll need a dual fan setup, but trying to find a super thin shroud and high CFM fan combo that will fit in the 2-1/2″-3″ of clear space between pulleys and belt is a challenge. the shroud is indeed designed to move air over the electric motor and onto the cylinder finning, driven by the motor's fan. If you have space issues, you can use an electric fan in a pusher configuration in front of the radiator. I had this discussion with the guy at Griffin radiator. Finally, if you're installing a custom radiator, adding an electric fan is easy and will clean up your underhood considerably. When you want electrical repairs or installations at your home, you need a professional electrician you can trust to do … The cooling system is also vital to your engine's performance. This keeps the fan out of the natural airflow path into the radiator. This is basically a waste of energy. Not saying there's none out there but..... You have to count the fan shroud with the clutch fan's weight. This is a pic of where the passenger side shroud bolt is located just beneath the radiator hose. If you have reasonable coolant temperature when traveling at 50-60 mph, but temperature increases noticeably with increasing road speed, that is indication of inadequate air flow through the radiator core at … Electric Fan. I read a very good article many years ago about fan/fan shroud technology and it was stated that for optimal efficiency the fan blades should be 50% in the shroud and 50% outside the shroud....this is when looking at the edge of the fan … radiator w/ 2 electric fans. Electric or mechanical, a fan shroud is crucial to maximum system efficiency. Because I own a very expensive Hot Rod (32 Ford) That has a Walker Radiator in it with a Cooling Componants electric fan and shroud, which is rated at 2700 CFM and that fan will blow you over if you are standing beside the car. And when it cycles off the alt will be charging the main power cell, the battery. Some fans can be used as either a pusher or puller. Note the stock plastic fan shroud encircling the clutch-activated, viscous-drive, seven-blade mechanical fan. It would also not operate as efficiently as designed, defeating its purpose. What I do know is that the fan shroud will help your cooling system to perform at it's peak. IMO a 65-80 amp alt is good to go for most non-efi cars, even with an electric fan setup. Now if you're factoring in the weight of the bigger alternator required....maybe. How do I know this? This is the easiest part and only requires for you to take off 4 nuts. I need to get the fan shroud on, and install an overflow bottle. The holes for the stock fan shroud were used to mount the brackets to … We know that not everyone is able to perform home repairs – and electrical work is not a good DIY project! That said, the only reason I don't have one is because I didn't have a shroud that fit my new fan, so I tried it without one, and unless my gauge is lying (completely possible) and I've been running hot for the last 6 years, I haven't needed one. An electric fan and shroud will out-perform an engine driven fan at idle, stop & go, or in-town driving. The shroud also acts like a funnel, pulling air through the entire radiator. Without the spacer, the fan could hit other engine parts. Your fan wont be on all the time, it will cycle. The fan shroud channels the flow of air toward the radiator to help keep the coolant cool. We settled on this combination … The shroud focuses the airflow through the radiator and across the engine. You should use some caution in adding your fan that you don't impede the intended flow. I don't know why they didn't just put an electric fan on those instead of the giant shroud. Then use a 8mm socket wrench and remove the 2 bolts holding the fan shroud. Sadly a deep fan shroud is not necessarily what you need. Draws 18.5 AMPS. Car makers switched to electric fans because the electric fan could be switched on/off at will so the drag on the engine was controlled. Assuming that the radiator is in good condition, the solution to most overheating issues at idle and slow speeds is converting to an electric fan sized properly for the radiator and the power level of the engine. The shroud is important in the safe operation of your vehicle. It should only need to be relocated. It's best to know things like fan to pulley clearance when ordering an electric fan for your application. The radiator is out of a 95 manual firebird and will be cooling a 283 sbc. - Use the fan clutch tool to loosen the bolt and take out the assembly. An example of this can be seen below. He will probably be okay on the highway, he might over heat in stop and go traffic since there fan is too far away to actually pull any reasonable amount of air through the radiator when it is sitting. I've never seen an electric fan that weighed more then a factory clutch fan personally. - Take out the 1 torx screw on the passenger side top and loosen up the fan shroud. If you're looking for fans with a larger shroud assembly that provides the advantage of maximum tunneling for air, we've got fans with lightweight aluminum shrouds such as the Mishimoto Electric Fan With Aluminum Shroud and the Mishimoto low-profile Slim Electric Fan.Both Mishimoto fans are vehicle-specific, and are available as single or dual fans depending on vehicle application. Electric is proud to be open air, a fan shroud easiest part and only for! Always recommend them home service providers the spacer, the battery flex-a-lite 2500 CFM 16 '' electric fan you... 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