Running temperature
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Junior User
Joined: Nov 2012
Posts: 65
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From: Raleigh N.C.
Running temperature
Installing an electric fan on my radiator and i cant find anything that says what temperature the engine runs its best at. I need to know in order to get the correct wiring kit.
its an 86 4.9L 4 speed if that info helps.
I'll be posting a tread on how i did it when finished.
its an 86 4.9L 4 speed if that info helps.
I'll be posting a tread on how i did it when finished.
Cargo Master
Joined: Mar 2008
Posts: 2,573
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From: Washington
Use the EDIT button on the bottom right of the post.
I thought you would want the fans to kick on about 20 deg higher than the thermostat temp.
So with a 180 deg thermostat the fan thermostat would be 200?????
I really don't know the correct answer to this question
I thought you would want the fans to kick on about 20 deg higher than the thermostat temp.
So with a 180 deg thermostat the fan thermostat would be 200?????
I really don't know the correct answer to this question
Thread Starter
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Junior User
Joined: Nov 2012
Posts: 65
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From: Raleigh N.C.
what I need to know is a good running temperature for my engine.
Kits are sold like these. This one cuts on at 180 and off at 165. This is based off of the water temperature.
You can buy them with different ranges or an adjustable one. I personally just want to buy one with a good preset range, to save the hassle of adjusting and for the cheaper price.
Kits are sold like these. This one cuts on at 180 and off at 165. This is based off of the water temperature.
You can buy them with different ranges or an adjustable one. I personally just want to buy one with a good preset range, to save the hassle of adjusting and for the cheaper price.
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Junior User
Joined: Nov 2012
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From: Raleigh N.C.
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Moderator
Joined: Dec 2007
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From: Boise, Idaho
Yup, you have a certain amount of time after you make a post that you can edit the title.
As for the temperature, the stock thermostat is generally 195°. I don't think engine temp is as critical for a non-computer controlled engine, so something in that range, I would think, should do you just fine.
As for the temperature, the stock thermostat is generally 195°. I don't think engine temp is as critical for a non-computer controlled engine, so something in that range, I would think, should do you just fine.
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Post Fiend
Joined: Dec 2007
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From: Lost
The fan sensor in the radiator should be set for around 180, if you are running a 195 T-stat in the engine. Lower temp stat, would need a lower setting for the sensor.
The sensor is reading the temp of the coolant in the radiator, if it is too warm, it cannot absorb enough heat to keep the engine cool.
The sensor is reading the temp of the coolant in the radiator, if it is too warm, it cannot absorb enough heat to keep the engine cool.
Senior User
Joined: Sep 2013
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From: Marlborough, CT
Well, as an example, the 96 Caprice 9C1 I used to have, had electric fans, with a 195 t stat the fan was set to come on at 240 and shut off at 220. The 94 Mustang 3.8 I presently have will come on at 220 with a 192 t stat. A 200 switch-on seems kinda low and would pretty much have the fan running full-time. Of course, if you have AC you need a provision to turn the fan on whenever the ac is on ~Bill
Post Fiend
Joined: Dec 2007
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From: Lost
Well, as an example, the 96 Caprice 9C1 I used to have, had electric fans, with a 195 t stat the fan was set to come on at 240 and shut off at 220. The 94 Mustang 3.8 I presently have will come on at 220 with a 192 t stat. A 200 switch-on seems kinda low and would pretty much have the fan running full-time. Of course, if you have AC you need a provision to turn the fan on whenever the ac is on ~Bill
Where the sensor is located, engine vs radiator, has a lot to do with the required temp setting.
In the engine, the temp should be 20-30 degrees higher than T-stat.
In the radiator, it should be 15-20 degrees cooler than T-stat.
Yes, with A/C, the fan should run while the compressor is engaged.
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