The taurus fan can cool a hemi on it's low speed and it's a 2 speed fan, don't worry if installed right it will keep your truck cool. Search for e-fan in the 3rd gen section and you will find plenty of guys running the taurus fan on v-8's.

 

Wiring depends on what you want to do with it. There are guys who are just running a relay and a switch and others who have controllers with adjustable thermostats, delayed shut off, soft start, all that stuff. It depends on what you want to spend and how much control you want to have over the function of your fan.

You want the fan out of a Taurus with the 3.8 engine, that is the good one that flows the amount of air the Hemi will need to stay cool.

 

What controllers are available? I know about the Delta Current Control FK-35 but it's too much money. I'd like to be able to set the thing just after the rad pressure comes up. To keep the fan from coming on at higher speeds when ambient airflow will do the job.

 

How much you looking to spend?

 

Maybe 200 total.

Can get the hayden control modules 50ish on ebay. Will the inrush spike on the taurus fan cook them?

 

Here is the one that I run. It has a soft start so there isn't a hard draw on the electrical system when the fan starts up, adjustable thermostat so you can set whatever temp you want it to start running the fan at, can be set to go on with the ac or with a switch if you want, and extended run time so that the fan is left on for a set amount of time after the truck is shut off. It only costs $110 so it is well within your budget and it handles the Taurus fan just fine.

http://moesperformance.com/index.php...oducts_id=1658

 

You can do it for $130 or less w/ the parts listed from the fordmuscle link, and the 75 amp relay will keep the cheaper controller from getting cooked.

 

What about this one?

http://www.derale.com/adjust-fan-controller.html

It's rated for 25A and has a 30/40A relay.

 

That looks very similar to the Hayden/Imperial controller that I used. You can pick it up at pepboys if you have one locally or order from amazon, but I think you will still need a bigger external relay for the fan startup.

 

I am not familiar with that controller but I have read somewhere that these fans draw around 33A on startup, so that 25A rating might be a problem.