Technical what temp electric fan on and off??

I am ready to wire up the electric cooling fan in my 1955 T-Bird with a mild 351 cleveland. I wanted to know what temperature sender some of you are using and how it performs. some are 185* on and 175* off, and another is 200* on and 185 or so off. 200* on seems kind of high to me. thanks,Henry

 

On my SBC I have 180* thermostat. Car runs 190 to 195. I think my temp sensor is on at 210 and off at 195.
Fan hardly ever comes on, unless I am in stop and go traffic. When it does come on, fan can cool engine even if I am still in stop and go.

Phil

 

I have a 195 on 175 off,
Not sure how accurate these these things are, car seems to run around 180-190 but the fan isn’t on all the time.


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What thermostat do you use? I'm guessing something below 175 or fan would not turn off. Correct?

Phil

 

It’s a 180 thermostat, that is why I don’t believe it’s accurate.


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180 thermostat
Fan comes on a t205 off at 185
Only when needed at a stop light

 

SBC, 180* thermostat, and I think it’s 195 on, 185 off. Usually runs right around 190*.

 

These work great : Speedway--https://www.speedwaymotors.com/Speedway-Radiator-Cooling-Fan-Control-Module-for-Electric-Gauges,2356.html . Set any temp you want.

 

I find this interesting,
Jegs has a kit
Part Number: 555-10560
Single Fan Wiring Harness & Relay Kit
Includes:
(1) 185 degree On/170 degree Off Sensor for 180 degree Thermostat

I would have thought that the fan would run all the time?


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