First I should say that there are probably very few efans out there that cool as well, or better, than the stocker. The stock fan is automatic adjusting, and is almost bulletproof. The stock shroud covers 100% of the radiator, whereas most e-fans will not. The main reason to remove the stock fan is if it is defective, or to make more room in the engine bay. It isn’t much of a performance gain, nor is it more efficient, in most cases.

When installing an electric fan on a 1 or 2gen, I use junkyard fans from 91-96 Ford Escorts. These are cheap, plentiful, long lasting, and move a lot of air without taxing a stock charging system too much. The good thing about these is that they fit the stock FB and FC radiator well, and they are shrouded to cover most of the surface area, thus cooling the whole area, not just the center like a cheap autozone or summit fan. Others have used ford taurus and pontiac fiero fans to name a few, but these are somewhat more obscure. I set my fans up to run anytime the key is in the ON position, without a thermoswitch. Again, **in my experience**, with a healthy stock charging system, you will experience no charging problems with the fan running constantly. Adding a thermoswitch is possible, but I personally don't like them because of inaccuracy, as well as the fact that this just adds another link to the circuit that can fail later causing major problems.