One Relay or Two

yea it appears that one motor is a two speed and the other motor is on off.

the first motor runs on low and high, the second runs on high only.

Two relays and a dual fan controller is what I would use. Or you could get two independent fan controllers, one set at like 190 and the second set at 200.

That way you use less current and make less noise when high is not needed.

[ame="http://www.amazon.com/Derale-16788-Amperage-Controller-Probe/dp/B004XONX8U/ref=sr_1_15?ie=UTF8&qid=1357272313&sr=8-15&keywords=dual+radiator+fan+controller"]Derale 16788 High Amperage Dual Fan Controller Push In Probe : Amazon.com : Automotive[/ame]



All in one unit.