Cirrus - You may want to make note that Tim's set-up, while a good design in theory, left him with two blown engines. Its one of the first things he mentions in regards to the design.

I think when I finally install an electric fan I won't be removing the clutch fan. It is way too efficient at cooling the engine. Others have installed a smaller auxiliary fan, in addition to the clutch fan, to just deal with the hot soak. If the thermostat fails then you're not out an engine... you only have to deal with hot soak. I realize the clutch fans have their problems too & failed units have been the cause of many engine deaths as well.

Also, so you know, there are companies out there that will build you a shroud when you order the fan. I don't have any of this information collected at the moment but I know out in San Diego you can very easily find someone to take care of this for you if you don't have the tools, material, or motivation.

One last thing that I pondered, in regards to Tim's experience with his thermostats - I know there are units that hook-up into the radiator hose. Perhaps these thermostat's - while not as 'clean' in design - are more reliable. I'm not sure, but its something that I wondered.

Good luck, & let us know what you decide to do & inform us of the results.