Electric Fan Shroud Design

Even electric fan manufacturers will begrudgingly tell you that all things being equal a belt driven fan with a shroud around it is about the most effective cooling option going.

Electric fan shroud design.

We are family owned and operated and are backed by over 40 years of experience in the radiator and automotive cooling industry. Need tips on tuning your carburetor converting your vehicle to propane fuel or just need help installing your cold air kit. This fan shroud allows us to mount the fan s inside the shroud using a motor riser and motor cover to support the fan. Flex a lite invented the flex fan and holds the patent for the first electric fan for the automotive aftermarket.

Performance cooling products for the automotive market. How to design build a fan shroud browse two minute tech categories. Is proud to offer the highest quality custom radiators and electric fans for your automotive needs. Mattson s custom radiators automotive electric fans mattson s inc.

Designed to fit jegs universal aluminum radiators and will also work with other radiators that feature the same size core. One of main drivers of fan shroud design is noise vibration and harshness nvh requirements without compromising the main function of airflow for cooling requirements. Deep ideal for tight spaces. I ended up making 3 fan shrouds before i found a method that worked to my satisfaction.

Electric fans are preferential to mechanical mainly due to the fan clutch being driven off the engine i e no mechanical power draw when the fan kicks on. All jegs fan shrouds are 1 2 in. Electrolysis can result and it can destroy your radiator. The basic principle is to make a hardboard template of the fan and rad core and stretch material between the two.

Never use the radiator as a ground. Each fan shroud is pre drilled for the jegs electric fan but can be modified to work with most aftermarket electric fans provided they are the proper diameter. Fiberglass the material cut out the hardboard templates and what s left over is your fan shroud it is actually very easy. And for good reason.

Typical automotive engine cooling fan assembly includes an electric motor mounted on a shroud that encloses the radiator core. A commonly held thought is that fan blades should recess 50 into the shroud for optimum cooling. 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. And we proudly make our products in the u s.

Another tip is the shroud design. If the fan is mounted really close to the radiator the funnel does not work well and the diameter of the fan becomes the diameter of the radiator since the air cannot be sucked from the side areas.