Trader4--I agree with you---You don't see what the problem is because you are the problem. It is a choice you make each time you make a post. In this case you choose to be destructive rather than constructive. When you make a statement with as I see it, or in my world, I don't see how-- it clearly is an opinion rather than a statement of fact. When that is the case there is no reason to be defensive when someone disagrees and to relentlessly defend your opinion. You see constructive difference of opinions that are handled peaceably all the time--Threads such as the best oil to use or should I change my transmission fluid.

In this case you are challenging 50 years of racers removing stock fans in favor of aftermarket fans. You are challenging decades of eliminating clutch fans in favor of electric fans. All for the sole purpose to have the use of the horsepower that was taken to run the fan they removed. The recovered HP has always been from 4 to near 20HP depending on the application. For my particular application the Flex-A-Lite techs estimated the recovered HP would be 7-10HP saying they try to be conservative and cautioned that dyno results vary by dyno as do back to back pulls and pulls at a later date.

I think that for mild mannered Kent daily driving the change is a subjective value equation. IMO, if Kent's clutch fan died and the he intended to keep the vehicle for a year or more and is a DIYer it is worth consideration, especially if Kent is Located in a long winter or hot summer climate.

You now have another choice which is how you respond to this post. You can be constructive or destructive, you can peacefully contribute or you can be defensive. You have done both in other threads so I know it is a conscious choice you make. I make the same choice. I'm sure by now members know I challenge posts that I view as uncalled for especially those involving new members. And, would like me to drop continued responses long before I do. I am well aware of that.

You are not singled out by me or anyone else when you choose to be peaceably constructive. You will always be challenged or called out when you are not. The primary reason is the person wanting help expects posts to be helpful and on topic. The topic of my thread is-- has anyone removed the clutch fan and replaced it with an electric fan. I had no question in my mind that it will be worthwhile I was merely interested in what they did and why. I have made the switch many many times over the years and each time it was a great HP gain per dollar spent investment. The Dinan mods delivered 29HP. The cost was several thousand dollars. The electric fan and controller cost was about $400.

The reason is that 10HP in round numbers equates to a .1 improvement in elapsed quarter mile time or one car length.

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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas