Power Source in the Engine Compartment

[abbey castro]

I'm ready to hook up the electrical connections for the electric fans. A wire goes to the ignition switch from the relays. I know that I can tap into the fuse block for a switch powered connection. Is there a source that I can tap into in the engine compartment that is also switched on by the ignition switch vs running a long wire to the fuse block inside the car?

Which would be the best power source at the fuse box to use? I don't have any other non factory accessories running out of the box, so the fan will be the only one.

 

[565bbchevy]

So are these triggered to come on with a thermal switch?

 

[abbey castro]

Yes, thermal switch is like a sending unit installed by the thermostat housing. It triggers the fans to start. Each fan has its own 30amp relay. I got the two relay kit from J..s.

 

[TURNA]

I ran both of mine into the fuse panel.

Any circuit marked IGN will work

 

[fleming442]

If you need power for the fan relay, run it to the battery. Ignition for the relay coil can be had on a pink 12ga, at the ignition switch or one of the ports mentioned above.

 

[pontiacgp]

If you need power for the fan relay, run it to the battery. Ignition for the relay coil can be had on a pink 12ga, at the ignition switch or one of the ports mentioned above.

that is how I do it, I use a Blue Sea box to fuse my HID headlights, fuel pump, 2 fans. The pump, and fan relays are controlled by a switched source

 

[abbey castro]

Thanks for the clear diagram! I know that the IGN ones are power and the place to tap into at the fuse box. Just trying to find a closer place in the engine compartment so as to not run 8 ft of wire from the relays in the front of the car to the fuse box. Yes, the relays master power is connected to the battery via a 10 gage wires. Just looked at a video on the Blue Sea box fuse box. If I go to an electric fuel pump I'll get one of those.