Question Electric fan

No, I typed it wrong! I have mine in the coolant, that is returning to the engine. That is where all the factory setups that I have seen have it too. I don't think it needs to be where you have it. However, if you have high ambient temperatures then leave it where it is. You need all the help you can get!

Earle

Factory pump, 3-core, and shroud.

The shroud attaches to the core. If you're flexing the core enough to break the shroud, then you really need to come up with something else in the way of mounting :)

I broke the straps on the side of my core and had to fix them with 1/8" x 1 1/4" straps I welded on top of them full length.

I think the fan will take out the shroud.

I really need a new frame to stiffen it back up, mine is terminally soft and flexes like mad.

Mike

Oh, I see. I was thinking in terms of an electric fan mounted directly to the shroud. It would move with the shroud, eliminating the possibility of interference.

That is becoming an interesting option. I have a fixed fan so it should clear up a few HP too. It is now turning winter, so no worries until next summer....

Mike

If you don't want this fan 'after-run' you can wire it so it only gets power when the ignition is on. This is what I did with my first electric fan in an '84

Heh, if you do that, and you shut off a hot engine, it will blow steam bubbles into the radiator overflow tank. That is why they wire them the way they do.

Earle

possibility

How would my setup have been any different than a vehicle with a fixed or clutch fan?

I have to take issue with that. If that happens, then there are problems with the cooling system aside from the fan.

Oooohhhh. If you have a rigid fan now, you're really going to like the difference. A rigid fan eats up significant horsepower. I won't start a war of words by quoting how many, but let's just say it's enough that you can definitely feel the difference. And you don't realize just how much noise a rigid fan makes until it's gone. It's one of those "Wow!" things.

I inserted a relay into the circuit so the fan wouldn't come on without the ignition's being on, mostly because it annoyed me to have it come on and run for ten minutes after I was in the house, and I wasn't crazy about the juice it would pull out of the battery by running for so long. It was noisy too, at 2:00 in the morning sitting next to my neighbor's window.

The fixed or clutch fan is always on, so this "can't" happen. The way Nick from Phoenix has his wired, it "probably" won't happen. His system will keep the radiator full of relatively cool water, because his temperature probe is near the radiator input. If you have a stock setup, or an aftermarket setup wired like a stock setup, then you could have problems wiring it the way you describe.

I have driven to Guanella Pass, for example, and gotten out at the summit to take photographs. The fan comes on for a good while when I do that. If it didn't, it might blow steam into the coolant recovery tank. I don't know that that would be harmful, but if I lent the vehicle to a family member, and it happened, I would have to listen to an incoherent, rambling account of the symptoms. I don't really need that.

Earle