Locating Correctly Rated Electric Fan to Cool Engine on 1986 Chevy P30 Chassis

Question:

I have a 86 Chevrolet p 30 chassis with rv for shell. It has a 454 in it but the cooling system has been altered. It has the stock engine fan with ,2 electric fans in front cooling engine, trsns and ac all stacked. Im nit sure the cfm the fans are. They are 8-10inch x2. Im also unsure of cfm requirements of this package but I Intend to relocate trans coolers and keep fans with them but I will need a good electric fan setup. Im going to need To figure out what my cfm requirements are and if you could point me in the right direction for a fan and shroud setup thank you. I plan to eliminate engine fan entirely. I hope that is enough info to give you an idea what need. Im not sure what else I will need as far as monitoring temps as well. I appreciate your help thank you

asked by: Dean L

Expert Reply:

We do have a large selection of electric radiator assemblies available, such as the excellent Derale 26" Dual High-Output # D16842 that you were looking at, but the exact CFM requirements to cool the engine in your 1986 Chevy P30 is going to be difficult to pin point. This is because the requirements will be different among vehicle manufacturers and will vary depending on your particular application (towing, long distance trips, outside temperature, etc).

The Derale # D16842 has a high 4,000 CFM rating which will provide an awful lot of cooling so it should be enough to keep engine temperatures down. I also recommend making sure you have the space available to mount the unit. It measures 26 inches wide, 18 inches tall, and 2-3/4 inches deep.

You can pair this with the Derale Premium Thermostat Fan Control # D16735, which will automatically shut the fan off when fluid temperatures fall below 165 degrees.

expert reply by: Chris R