[njk53]

I would not remove the relays because the purpose of the relay is to prevent voltage/amperage drop across the wiring circuit. Your fans will not operate at peak performance without the relay. I am not sure why you use two relays but I guess it is OK. My brother and I have a BB Chevelle Wagon Stocker and we used a single fan assembly off of a Cadillac XLR. The XLR uses the top of the line Siemens fan motor that put out over 1000 CFM. There was little modification to adapt it to the Chevelle radiator and looks like it is suppose to be there and performs flawlessly. We just use an on/off switch on our panel. We used a Bosch relay with an in line fuse.

If you are interested, I think I still have the schematic we used on our car at the shop. If I still have it I can e-mail you a copy. It sounds like you are using a thermistor to sense radiator temperature to turn the fans on and off correct?