f4i fan mod???
08-20-2010, 03:28 PM
#3
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Join Date: Oct 2004
Location: Anywhere wheelies happen
Age: 37
Posts: 5,869
Re: f4i fan mod???
the wire that goes to the temp sensor on the radiator from the fan, is the ground wire. The other wire is always +12v hot when the key is on.
Splice into the ground wire, between the temp sensor and fan. Make sure to leave the temp sensor hooked up, in case you forget to turn the fan on, that way it'll still come on at the stock 225 or 230f temp
No need to fuse the wire/switch, since it'll be a ground anyways
Also personally I just run a switch, the charging system doesn't really charge the battery at idle, and adding in the fan when warming up isn't helping anything, could possibly just strain your battery/charging system. Although many do run the fan 24/7, a switch isn't really any harder to hook up, and only adds like $3 to the install
Splice into the ground wire, between the temp sensor and fan. Make sure to leave the temp sensor hooked up, in case you forget to turn the fan on, that way it'll still come on at the stock 225 or 230f temp
No need to fuse the wire/switch, since it'll be a ground anyways
Also personally I just run a switch, the charging system doesn't really charge the battery at idle, and adding in the fan when warming up isn't helping anything, could possibly just strain your battery/charging system. Although many do run the fan 24/7, a switch isn't really any harder to hook up, and only adds like $3 to the install
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