BB Cooling Issue Solved

[Hotwire]

Is the new radiator cross flow? If not having just one fan on could be causing you problems. If you don't know, look to see if the cooling tubes are vertical or horizontal. If vertical, one fan running is only cooling half the coolant that's flowing from top to bottom, like having half your radiator covered.

If they're vertical I'd highly suggest you wire the fans in a series/parallel configuration like LT1/LS f-bodies. They run the fans on low in series. Both fans are sharing the 12 volts so they're running half speed at 6v each. They pull a lot of air but you won't be able to hear them over the engine. When high kicks in the fans go parallel and each gets 12 volts.



Video I did for another thread discussing the same thing, garage doors were closed and it was dead quiet when I filmed this:

https://drive.google.com/file/d/13WU...w?usp=drivesdk

You can search for ls1 Camaro fan wiring diagram, this is the same schematic I use to wire them up. Takes 3 30 amp accessory relays:

https://www.thirdgen.org/forums/ltx-...ml#post4794166