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Old 08-07-2003, 06:41 PM
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Timer for Electric Fans?

I am running a set of Spahl dual electric fans in my 69 vette.

Right now I have them wired through a relay that is controlled by an engine temp sensor/switch. The power side is connected through the ignition side, so that when I turn off the ignition switch the fans stop.

I would like to know if there is timer style relay that would keep the fans on for a short period of time (3 - 5 minutes) after the igniition is turned off.

Thanks, Eric.

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Old 08-07-2003, 06:51 PM
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If you change the power side of the relay from ignition to a constant they will run untill the sensor shut's them off but that could be more than 3 to 5 min.....D
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Old 08-08-2003, 11:36 AM
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HEY ERIC: look in your phone yellow pages under Electronic Equipment & Supplies. Call and ask if they have a small adjustable 12 volt DC timer. I am sure you will find one. If you cannot locate give me a shout and I will find a web site for you. GOOD LUCK...DAVE
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Old 08-08-2003, 12:38 PM
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Electronic Timer Kit

Check this out, If your going to use it for high current aplications you'll need to use a relay. With this you can adjust the run time.

Regards
Mark
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Old 08-08-2003, 01:16 PM
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I used to have the relay connected to the "constant" or "battery" side of the ignition. Due to the engine retaining heat so long (the water pump is not circulating the engine coolant), it would KILL my battery!

It is hard to look cool when you have to get a jump start from your buddy's escort!

And thanks Jag Daddy, I am will check out the link you provided.

Eric.
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