jay, like I have said, you will get what you pay for. yes, some of the controllers can get expensive.
Just for reference, see this controller:
New Flex -A- Lite Adjustable Electric Fan Temperature Control Kit, Thermostat | eBay
DO NOT BUY THESE!!!!!!!!! JUNK!!!!!!!!!!! These are the wire wound ones that a lot of people buy because they are cheap. But, like I started things out with, you get what you pay for.
Something like this would be what you are after:
Dakota Digital Electric Fan Controller 150-250 Deg F | eBay
That has the dual fan controls. Yo ucan set up one fan to kick on at say 200F and the other at 210F. You can play with the settings some. The big trick with this is figuring out how to get a good temp sender for the unit and getting it into the coolant channel. I am sure with a little bit of looking, you can make something work.
This is similar to what I have in my truck (the only difference is that I have a temp bulb on the end vice the screw in piece that this has):
HAYDEN 3651 Electric Fan Controls | eBay
10 years and still ticking. Works like a champ. Simple to wire up and set up. I set mine up by driving it out on the highway with the controller out where I could adjust it, drove for about 5 miles with the engine at temp, pulled off to the side, adjusted the controls to get the fan to kick on, noted the spot, dialed it up to kick the fan off, then dialed it back down to just above where the fan kicked on. Repeated this for the second controller, but this time I set the controller slightly higher so the fans kick on at 2 different temps.
This should give you some ideas. If you need more help, let me know. I will help you get this figured out.
