SPAL Fan Wiring (Basic Wiring Assistance)

[bigjae46]

Everything looks good on your wiring diagram. The Orange wire is basically a signal wire to turn on the relay so it has a very low amp draw. I personally installed a fuse on both positive lines to be safe. Use a 15/20amp on the line to the Red/Yellow ignition wire and the 30amp ( that came with the relay ) on the Yellow line from the relay to the Postive lug in the engine bay. Hope this helps...

Yellow: Postive Lug
Orange: Red/Yellow Stripes

The diagram shows a negative trigger so only need to put a fuse on lead 30 from the relay to the battery and the positive lead of the fan.

Relays should be wired with a ground trigger for safety and less wiring.


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[WOLFN8TR]

Everything looks good on your wiring diagram. The Orange wire is basically a signal wire to turn on the relay so it has a very low amp draw. I personally installed a fuse on both positive lines to be safe. Use a 15/20amp on the line to the Red/Yellow ignition wire and the 30amp ( that came with the relay ) on the Yellow line from the relay to the Postive lug in the engine bay. Hope this helps...

Yellow: Postive Lug
Orange: Red/Yellow Stripes

[Fresh1179]

Hey Guys,
I’m looking for some assistance with some wiring a SPAL fan for my new radiator. I will readily admit my wiring knowledge is limited. There are plenty of examples of wiring with the Mishimoto harness and with deletion of the Aux fan. I am going to retain the Aux fan and I don’t have a Mishimoto harness so I was hoping to run some questions by y’all before I start soldering.

1. I am not confident in my placement of the 12 VDC line. I have it connected to the positive terminal in the engine bay, but I’m not sure this supply’s 12 VDC....

2. Ignition Source-I am not quite sure where to attach this too. I have seen the flashlight and accessory lights (glovebox) as switched ignition sources. Would these be correct?

I have drawn a crude picture of my (probably) wrong diagram.





Any help is greatly appreciated!


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