I have some experience with electric fans. One example; I bought a 79 TA with a dual flex-a-lite electric fan. Engine temps topped off at about 210 while cruising. This was a 4 speed car which usually do not overheat. I switched the cooling system back to exactly original. The temperature never got over 180 after the switch back. I sold the electric fan on eBay and recovered all the cost to put the car back to stock. It was a 'win win'. So, now when I think about electric fans all I can think of is 'Why bother'? LOL And my engineering friends down at powertrain said they switched to electric fans when they turned the engine sideways and there wasn't any pullies in front to run a belt to.
The 4th Gen F-bodies and Vettes, have sideways engines?
Cheap (at at least cheaply made) aftermarket fans generally have two problems. Some use no shroud which reduces their effectiveness. Others have a shroud but without a flap type provision to allow airflow past it under highway cruising conditions. I can see why you had a negative experience but you shouldn't condemn all electric fans because of it.
So, now when I think about electric fans all I can think of is 'Why bother'?
