Good accessory 12v

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  • CrazyB
    E30 Addict
    • Feb 2004
    • 420

    #1

    Good accessory 12v

    I am good to be wiring up my electric fan today, i will be using an adjustable thermostat, and was wondering what is the good 12 v line to use under the hood as the power source?

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  • StereoInstaller1
    GAS
    • Jul 2004
    • 22679

    #2
    Originally posted by CrazyB
    I am good to be wiring up my electric fan today, i will be using an adjustable thermostat, and was wondering what is the good 12 v line to use under the hood as the power source?
    Why not utilize all the stock wiring, but add your thermostat to it?

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    • CrazyB
      E30 Addict
      • Feb 2004
      • 420

      #3
      Was not sure if the stock wiring was good enough for the 2200 cfm fan, also I am using a custom temp probe instead of using the radiator auxiliary switch.

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      • CrazyB
        E30 Addict
        • Feb 2004
        • 420

        #4
        So can anyone point me in the right direction on what lead to use?

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        • blocke
          E30 Fanatic
          • Mar 2009
          • 1305

          #5
          Why don't you just run a dedicated line? There's a power distribution junction on the firewall.
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          • nrubenstein
            No R3VLimiter
            • Feb 2009
            • 3148

            #6
            The stock fan uses huge power.
            2006 GMC Sierra 2500HD 4WD LBZ/Allison
            2002 BMW M3 Alpinweiß/Black
            1999 323i GTS2 Alpinweiß
            1995 M3 Dakargelb/Black
            - S50B32/S6S420G/3.91
            1990 325is Brilliantrot/Tan
            1989 M3 Alpinweiß/Black

            Hers: 1996 Porsche 911 Turbo Black/Black
            Hers: 1988 325iX Coupe Diamantschwartz/Black 5spd

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            • CrazyB
              E30 Addict
              • Feb 2004
              • 420

              #7
              my only fear of running a line of firewall is killing the battery if it is very hot out and engine is off but the fan still kicks on due to the temp

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