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3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

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Old 02-19-2007, 05:40 AM   #1 (permalink)
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Talking Electrical Fan

Hello,

For my rally project (E30,325i, 1985) I am installing an Electrical fan instead of the standard visco (?) fan for the radiator.

OF course there is already the electrical temperature sensor which goes to the computer, but does anybody know if there is just a on/off signal somewhere in the car when it reaches 90 degrees . Just a signal I can use with some relais to switch on and off my fan? I Can use this than without having to install myself a thermostat and I will put it in parrallel to my dashboard switch.

Greetings

E30_Rally_Lover

Last edited by E30_Rally_Lover; 02-19-2007 at 05:43 AM.
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Old 02-19-2007, 11:14 AM   #2 (permalink)
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i just ran a universal adjustable thermo switch in mine so i could set it to whatever temp i wanted

you can pick them up at just about any auto parts store....

Edit: go to summitracing.com and search for "fan switch" and you will have like 7 pages of options
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Last edited by gotKRAUT; 02-19-2007 at 11:20 AM.
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Old 02-19-2007, 05:21 PM   #3 (permalink)
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Originally Posted by gotKRAUT
i just ran a universal adjustable thermo switch in mine so i could set it to whatever temp i wanted

you can pick them up at just about any auto parts store....

Edit: go to summitracing.com and search for "fan switch" and you will have like 7 pages of options

Best way to go.
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