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Built the truck in 2023 and used a 4 row aluminum radiator but I did not have enough room for a mechanical fan or a fan shroud because of lack of water pump clearance so I mounted a 16" 3000 CFM electric fan directly to the radiator. This worked reasonably well but when setting in traffic on a hot day it was getting considerably hotter than I was comfortable with, it got hot enough to trip my fail safe thermostat open.
I considered all kinds of options but I finally built a 1" thick fan shroud that is about 10" wider than the radiator and bought another matching 16" fan. Offsetting from center gave me enough room (barely).
Preliminary testing looks promising but I will not know for sure until I am setting in Pigeon Forge traffic on a 100 degree day.
How is your sealing at and in front of the radiator? Is all the air in front of the truck being directed through the radiator core? Or are there spaces where air can go around it and not being used to its full advantage?
How is your sealing at and in front of the radiator? Is all the air in front of the truck being directed through the radiator core? Or are there spaces where air can go around it and not being used to its full advantage?
I have also been working on that, I have the top sealed off good, need to add a seal to the bottom.
that is what I thought. It is a fairly mild 10 to 1 390 with a mild cam,
You are done by the looks of it. I had some clearance issues as well. I put the fan between the shroud and the rad, mounted to the fan to the shroud. Just enough room for everything now.
I think it is going to do the job, can now sit in traffic at 95 degrees, AC on and maintain 180 temp, the only thing that needs tweaked a bit is I am using a temp probe thermostat and it does not work exactly like I want it to and add a trinary switch to the AC but I do have a manual fan switch also.
