ESP.net

Hello guys, I know its been discussed seen the threads just triple checking the diagram I have it right....????

Also main questions are 16 gauge wiring okay for the wires listed 16 gauge or stock 18-20 okay?

I am using the stock harness to trigger the bigger fan. Thanks

a1320addict

iTrader: (1)

Depending on which SPAL fan you are referring to, they can draw in excess of 25A during in-rush.

Safe bet is a good 14AWG conductor for the power supply to your fuse>relay>fan - tefzel preferably and keep the fuse as close to the battery as possible.

ESP.net

So 14 Gauge on both:
87 to SPAL positive wire on Fan
SPAL FAN Blk to Chassis Ground

10 Gauge from Battery to Fuse to 30 on Relay

Other than that the wiring where needs to go... looks right correct??

a1320addict

iTrader: (1)

There is no sense in supplying the fuse with a different gauge wire than the rest of the circuit.

I honestly don't recall what the OE circuit looks like off the top of my head, but seems correct.

B18_Civic

How did you end up wiring it up? I am thinkig i will wire up my radiator fan and ac fan the same way.

ESP.net

I haven't wired it up yet... just was making sure and planing ahead... Right now I have a pusher Blox fan on the front. I am currently ditching it for a Puller Low Profile SPAL 10" fan. It does not use the big boy motor which draws a lot of amps 15-20. I am going to try the cheaper smaller Low Profile 10" Fan which only draws a peak of 6.2 Amps. I am going to use the stock wiring like the Blox unit since Amps are low. 7.5 I believe is max on the circuit. Should be fine. I am also making a Aluminum Fan Shroud for it on my Koyo 1/2 Size...

dpetro1

this diagram should work just fine BUT with a low amp fan, i dont see why you would need to wire it directly at. can't you just plug the spal fan directly to the factory harness? the factory relay should hold 7.5amps just fine.

ESP.net

Correct your stating what I already said... I wanted to double check for future if I decided to upgrade to big boy fan... also didn't know at first low profile fans draw under 6.5" amps

dpetro1

dpetro1

if you do upgrade to the bigger fan, you might want to go ahead and ground the relay directly to the chassis and bypass the stock wiring all together

ESP.net

Would think you'd use the stock wire harness as the trigger.