The next mod I added was the flex-a-lite electric fan. I ordered this from airram.com. http://airram.com/product.php?catego...6&productid=18
One downside to this is that it required a universal fan-clutch spanner wrench. Some auto part stores will let you rent them some do not. I ended up buying this one for $25. You can also try other tools that are lying around in your garage... maybe someone will find something that will work the same, I tried but could not hold the pulley still with anything I had. Here is the spanner wrench.
This is a picture after the fan clutch has been removed. You can also see where the divots in the pulley are for the spanner wrench.
After getting the fan clutch out of the way you have to decide how you are going to do the brackets. Unfortunately, this is a universal kit and it does not fit perfectly with our trucks. However, the brackets they give you are sturdy aluminum and easy to drill through or cut. I just changed the brackets around today, the one below I could yet trim the top (hood still easily clears it).
The other issue I had when installing this was what to do with the coolant overflow and windshield wiper fluid tanks. The kit said that it could fit under the factory shroud, but I did not see how that could happen at all. I ended up cutting my stock fan shroud so that I could use it to hold my stock tanks. It is sort of hard to see in this picture, but I have just the left side of the stock fan shroud that the tanks sit in, the rest of it i cut away.
Moe's offers a stock fan shroud delete kit, but if I were to do that there would be nothing for my vararam to rest on.
I did also replace the thermostat at the same time, I posted another thread about that already. I used the Predator and did some live data recording and monitored my engine coolant temperature. I let the truck idle and watched the temperature climb to 180* (when the thermostat is supposed to open and begin cooling the engine). I then turned the dial on the control panel of the electric fan to the left till the fan turned on, the fan now turns on at that temperature (mine is just a little over, it doesn't kick in until probably 184*). I have been driving around in 90* weather with quite a bit of humidity and the truck has stayed considerably cooler. (I'll edit later and post the actual number according to the Predator)
As far as gains are concerned; with this I did notice more power on the lower end, seemed to rev up a little quicker. For comparison I was able to chirp 1st-2nd gear shift at WOT with 1/4 tank. Now I am able to chirp 1st-2nd with a full tank at WOT, even up hill. Over all I am very pleased. Besides the benefit of extra power I know my hemi enjoys the cooler temperature and reduced work load with the absence of that stock fan clutch.