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Old 08-01-2012, 09:01 AM
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Temp fan switch location

I have got a dual temperature (195/210) fan switch for you cutlass and I need to have a bung installed onto my radiator. Is it best to put this on the hot side cold side of the radiator? I would think if its on the hot side it will be cooling the water off more than it needs to where as if its on the cold side it would keep the water temp at a more constant temp due to the fact it only cools it down to the 195*F area. Or if it should be on the hotside can I put it in the thermostat housing. It will be controlling a two speed single 14" fan.

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Old 08-01-2012, 10:25 AM
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this was my fix to add a bung for the fan sensor on my stock 58 truck radiator
short piece of ss exhaust tubing and half of a ss 3/8 npt coupling in the lower radiator hose.
i also added a stud to ground the tubing as it is mounted in rubber on both sides

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Old 08-01-2012, 10:26 AM
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Old 08-01-2012, 10:37 AM
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Consideration is given to the engine temp 1st not the temp in the rad. If in the coldest area or rad outlet back to the motor you are not responding to the engine temp soon enough.

Inlet area of rad would be my choice, works for me anyhow.

Is that a LT1 orge? so on the bottom line you have it in the rad inlet or hot side correct?
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Old 08-01-2012, 10:38 AM
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nice. Thats not a bad idea. I believe my end tanks are brass. They have a gold color where the paint has chipped off. Would I have to solder a bung onto it if I went that route. Also do I go off of the cold side temp?
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Old 08-01-2012, 10:58 AM
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Quote:
Originally Posted by Custom10 View Post
Consideration is given to the engine temp 1st not the temp in the rad. If in the coldest area or rad outlet back to the motor you are not responding to the engine temp soon enough.

Inlet area of rad would be my choice, works for me anyhow.

Is that a LT1 orge? so on the bottom line you have it in the rad inlet or hot side correct?
Alright thanks for the reply. I am having a friend who makes stuff with his lathe make me a bung because I could not find one online. I need a 14mm x 1.5 bung. How hard is brass to solder?
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