Crazyced

I’m piecing up my coolant system to get the car ready for track day. I have received my S13 SR Mishimoto radiator and tried to test fit the Altima (1998) fans that I got from the scrapyard.




I knew from the research I did that some trimming was required to make it fit. However, I did not expect the fan blades themselves to be sticking out over an inch on each sides. Is this how everyone have them sitting? That’s not ideal for forcing flow through the rad. Thankfully I had also brought the plastic shroud sliders from the Altima as well. I should be able to plastic weld them to the backside of the shrouds on each ends to cover the gap. Anyone else done this? Or did you just let it be?

jedi03

I just have it offset...looks terrible cools ridiculously well and quietly!

bmaddock

Yes they stick out a bit but they work just fine. I ran them on the low setting when turbo KA and never had overheating problems.

If you need wiring help I made a short tutorial: http://zilvia.net/f/showthread.php?t=581650

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jedi03

I have dual fan controllers so each will work on high...I think low would be perfect just the same...I don't get hot enough to really Ned it lol

Crazyced

I grabbed the altima fuse/relay box and plan to do a dual setup where they will run at low with the ignition and high with the flip of a switch. I'll post up when I'm done. Thanks for the link!

Nissansota240

Wired my altima fans up like so

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Crazyced

I now have a bunch of Nissan brown relays, which are double circuits (6 pins). But I can't for the life of me find any kind of amp rating for them.

My goal was to use 2 of them. One that would power the 1st circuit on both fans and it's trigger would be hard wired to the ignition. And the other would power the 2nd circuit on both fans and be triggered by a switch.

Any one sees any issue with that? The way I see it is if the relay can handle one fan circuit, it could handle 2, since both circuit would be completely isolated from each other, only sharing the electromagnetic field of the trigger.

Crazyced

I'm a little confused by the 'Dual High' in your graph. From what I understand, the way the fans work is if one of the 2 circuit is powered, it goes into low speed, and if both the circuits are powered, it goes into high speed. So according to your layout, either one fan runs on low, or 2 fans run on low.

Nissansota240

For my low setup I have just a single fan running, for my high setup I have both fans running on high. For most driving I only run a single fan.

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Crazyced

I guess what I'm saying is that from the research I did, all 4 wires need to be powered (well, 2 powers, 2 grounds) for one fan to run on high. So your 2nd fan couldn't run on high at all and the 1st is not setup to have both circuit powered simultaneously. Have you checked to see they are actually running on high?

Nissansota240

Guess they must be on dual low then

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