Fan temp sensor placement? - : Factory Five Racing Discussion Forum

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post #1 of 5 (permalink) Old 04-21-2017, 03:20 AM Thread Starter
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Fan temp sensor placement?

In my FE motor there are two places you could put the temp sensor. I'm taking about the one that turns on and off the fan. Where do think is the best place to put it.

The reason I ask, after driving, the fan stays on for like 15 min. Seems like a long time.

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post #2 of 5 (permalink) Old 04-21-2017, 06:57 AM
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My Thoughts...

On my first build, with an FE 390, and my current FFR with a 5.0, I put the sensor in the radiator right under the return hose. My probe was designed to poke through an opening in the radiator.

My fan will run on for several minutes after shut down, and on warm days, or after parking when driving around town, it will come on a couple times before the temp drops below the set turn on point.

Regards, Rick.

Driving a car like this is about as much fun as you can have with your clothes on.

"Too Much Is Just Right" $helby
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post #3 of 5 (permalink) Old 04-21-2017, 11:25 AM
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I have mine in the thermostat housing. Has worked great.

In any case that the fan runs off the battery, it will run on after due to the heat soak.

FFR5148K MkII Roadster, MCRP 331 CI 415 HP w/ carb, 3-link, disc brakes, SN95 Front brakes, FR500 Wheels. Still mostly Gel-Coat Grey! Now with roll cage and more track stuff, wrecked, beaten, blown-up, man-handled, cut up, butchered, Freaky body mods, sat on by HOOTERS girls, still barely street legal.

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post #4 of 5 (permalink) Old 04-21-2017, 11:48 AM
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The way around that is to power the relay coil (just the coil) from a keyed source.

FFR 5353K, 408W, TKO 500, 2015 IRS w/ 315 gear, Breeze QA1 DA coilovers front and rear, APE hardtop, Forte front swaybar
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post #5 of 5 (permalink) Old 04-23-2017, 05:53 PM Thread Starter
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I took out the thermostat. It was a 195. Replaced with a 180. That should help.
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