Anyone use these electric fans?
I am looking at these fans for my '75 Dart Sport 360, which will be a standard street driver. The measurements will be pretty easy to massage into the space, just wondering what specs I may not be considering. The fans are from a 2008 Jetta, and I can pick up the other whole assembly for $50.
Thoughts, advice, warnings?
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Do you know how many CFM those fans are capable of? That’s probably the most important consideration. If they’re not capable of at least 2,500 CFM or so it may not be enough.
Do you know if they’re a single speed, 2 speed, multi speed fan?
On a 2008 VW the fans are likely controlled by the ECU. That doesn’t mean you won’t be able to control them with a thermostatic switch, but you’ll have to figure out how to handle the switching. Also, if they’re a multi speed fan and you want them to operate that way, you may need to figure out how to wire the resistor that was originally used to do that. Or use a digital fan controller like one from Dakota Digital.
I run a Ford Contour dual electric fan set up in my Duster, it’s a 2 speed fan and I control it with a Dakota Digital controller that lets me program the on/off temperatures for both fan speeds.
IMHO
That shroud will be blocking a large amount of air at speeds above 30mph
All the area in read being parallel to the radiator and in close proximity blocks air flow resulting in overheating at driving speeds.
Another thing to consider...
The size of the engine those fans are designed to cool. 1.5, 2.0, 3.5L engine???
You are most likely trying to cool an engine twice the size.
Look at what the cooling is for a 2023 Challenger with V8 that is what you should be trying to achieve.
Will those fans work, maybe. But if you search "my engine overheats" you will see some very common threads.
I'm am not anti electric fan, but it and the rest of the cooling SYSTEM have to work together
Good luck to you.
The size of the engine isn’t the most important factor. The horsepower rating is a better judge, because that’s more closely tied to the amount of heat being created.
The other thing is, modern engine bays are much tighter and modern grilles are frequently smaller, so, the fan requirements are typically higher for a modern engine even if the displacement is much smalller.
The Ford Contour fans are a good example, they’re for a 2.5l V6. But I’ve never had an issue with them cooling my 400+ hp 5.6l, 340.
