Taking off the shroud for them was more beneficial. Their system was cooling great at low speeds but not as well fast. However, if you add a shroud you are now cooling 100 of the radiator core, which allows you to make more horsepower. Diameter, Reversible, 1,356 cfm, Black, Plastic, Each 4. In general terms, both electric and engine driven fan shrouds are effective for cooling. And the moving air blocked by a front mounted shroud when the car was moving would be more detrimental than any slight improvement from eliminating any possible recirculation when the car was sitting still at idle. The article on a better Pontiac cooling system says they took off the shroud because it resticts the flow over 50mph. CBR Replacement 31x19 Aluminum Radiator Fan Shroud For Dual 16 Spal Or Maradyne Electric Fans for a sandrail, rock Crawler, KOH, Ultra4, truck, UTV. When installing an electric fan directly to your radiator you are really only moving air through the area of the fan creating a large hot spot outside of that area. Derale High-Output Dual RAD Fan and Shroud Kits 16927 Flex-A-Lite Flex-Wave Electric Fans 239 Flex-A-Lite Flex-Wave Electric Fans 239 Summit Racing High Performance Electric Fans SUM-G4903S Electric Fan, Single, 13 in. The air resistance created by the radiator itself would also keep to a minimum. In theory it may also recirculate some air from behind the radiator back through if there's no shroud, but, the point of the pusher fan isn't to evacuate air from in front of it, it's to push air through the radiator. A front mounted pusher fan should have a "ring" around the outside of the fan blades to keep air from escaping out the sides. They will notably improve engine cooling performance by delivering more air to the radiator and driving out excess heat. The fan is pushing air through the radiator, and just pulling air in front of it. our fan and shroud combo kits come in 16 in fan, 10 in fan, 14 inch fan and. All CFM ratings are under resistance and actual numbers, vs cheaper fans that mis state this information. Vintage Air system with a new alternator, cooling fan and shroud. Our shroud kits feature SPAL USA fans and all aluminum fan construction. condensors, louvers, fan blades, radiator caps, thermostats, and water pumps. The shroud is to force a puller fan to pull air through the radiator.Ī shroud on the front of the radiator will block incoming air through the radiator, which isn't what you want. These high performance racing fan shroud kits are used for various all aluminum radiators. Without a shroud a puller fan will just pull air from in front of it in general, which may not be just through the radiator- it can pull air from around the radiator in the engine compartment. The shrouds on the backside of radiators are designed so that the rear mounted fan is pulling air across and through the entire surface of the radiator. A shroud on the back with an electric pusher on the front will do absolutely nothing. Maximize your electric cooling fans potential with a JEGS Aluminum Fan Shroud.
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