V8 Stingray

Hi Guys,

Just bought a new Alloy radiator for my corvette with dual electric fans.

Is it best to leave the fans on the whole time, or use a thermostatic sender and have it come on at a certain temperature and off when it cools?

If I go the thermostatic route I'm assuming the temp range I'd be looking for is something like 180 on, 170 off?

'75

I used a thermostatic switch and relay on mine, I saw no need for the fan to run while the thermostat was closed or enough air is being forced through the radiator at road speed. Mine comes on at 180 deg.

V8 Stingray

Can I ask what kit you used to drive it? I was looking at like this one on Summit 185 on/170off http://www.summitracing.com/parts/PRF-30115/

Where did you put the sender unit?

'75

That relay kit should work fine. My fan is a 2 speed so the wiring is different. Here's how mine is wired.

7T1vette

Running the fans when you don't need to just wastes fuel (yes, the fans take 'energy' to turn them against flowing air...and that electrical energy takes engine energy to produce it, hence more fuel to run the fans). Put thermostatic control on them. It will save fuel and be less noisy [much of the time].