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Old 05-13-2015, 05:58 AM   #31
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Originally Posted by 2uzferunner03 View Post
Not exactly trying to conform to an industries standard. Just comparing apples to apples here.
Understand. But that'd help compare badge-engineered fans vs. industrial products. Maybe that's why WTF and the others don't publish CFM data.


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Originally Posted by daleburr View Post
I did a back-to-back on Monday and the motor was 4deg cooler with the Windy (8.4v) than with the Tornado (6v).
Dale, how's your windy fan connected to the power system? Straight to lipo power wires?

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Old 05-13-2015, 07:06 AM   #32
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Just want to point out , the last time I had to actually "buy" a fan was at a race. The cheapest POS the lhs had was $10. The plug didn't fit and had to be swapped out , and its a total piece of crap . That being said , being able to buy a much better product for just a few dollars more seems very reasonable to me. Order 2 , install one , put the other in the tool box . Keep the stock stuff for spares or whatever . The way I see it , $25 dollars will buy all the fans I will ever need .
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Old 05-13-2015, 07:35 AM   #33
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Originally Posted by geeunit1014 View Post
Windy fans are roar legal since the fan part is still <30mm. Someone asked at carpet nats and it was deemed legal.
And this illustrates why "standard 30mm fan" is a piss-poor definition for a fan.
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Old 05-13-2015, 08:16 AM   #34
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Originally Posted by wingracer View Post
That's just it, there is no production line. It's a room full of men and women working for peanuts slapping these things together by hand. Just walk up to the ten on the end, hand them a spool of wire and give some new instructions.
Have you actually seen that? I highly doubt there is no production line, lol. Even if it is 50 Chinese children building these things, there is still a production line. All, and I mean ALL manufacturers whether American, Chinese, or Polish have a production line of some sort. And it would still take away from bigger accounts than a RC fan. You could sell 2 to everyone who owns a TC and it still wouldn't be enough to manufacture a RC specific fan.
If you owned a fan making company, would you change a few in the production line for a low volume customer? Or would you use that same time and materials to make more for a high volume customer?

The reason I speak of this, is because I worked for a arcade game manufacturer and we discovered it was cheaper for us to design our board carriages to use existing fans than to order special fans for cooling. We wanted to use higher cfm fans, so we could make the case smaller, and use less of them, thus reducing noise. But, it was not cost effective. We ended up using more fans than we wanted, but used low Db fans to lessen the fan noise. Our shop would install over 2000 fans a week in this "production" line of 20 technicians. But hey, that was about 10 years ago, lol.
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Last edited by chensleyrc1; 05-13-2015 at 08:28 AM.
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Old 05-13-2015, 09:26 AM   #35
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I actually threw my WTF windy fan out last week when it stopped working. Looks like the wires had broken off the fan which is a very common problem with fans. It did work for about 3-4 months though.

Last edited by tc4basher; 05-13-2015 at 01:24 PM.
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Old 05-13-2015, 01:07 PM   #36
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Originally Posted by daleburr View Post
The Tornado won't take lipo voltage; I tried with my first one and it was dead after one meeting.
Make sure you break-in the fan before using it. I've run Tornado fans wired direct to the ESC +/- for years (still have one running from my original batch order) and have had only one fail. Was likely a poor mounting choice over mechanical failure. No fan is safe when it comes loose and bounces around the chassis.

Every new fan I get, regardless of manufacturer, runs on a 1S battery for two 30 minute cycles before being used. I think YR recommends 2-3 continuous hours but doesn't specify voltage - still seems excessive though.

I also add a bit of silicone/Shoe-Goo to the housing where the wires come out, and try to taper it along the wire a little to add strength and stability. It helps prevent the wire from having a single point of flex and breaking.
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Old 05-13-2015, 03:51 PM   #37
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Originally Posted by wittyname View Post
The way I see it , $25 dollars will buy all the fans I will ever need .
I would hope so but often not the case.
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Old 05-13-2015, 04:41 PM   #38
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Originally Posted by Jethroz View Post
Make sure you break-in the fan before using it.
What component(s) are you "breaking in"?
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Old 05-13-2015, 04:55 PM   #39
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Originally Posted by howardcano View Post
What component(s) are you "breaking in"?
It's mentioned in the paperwork that comes with the fan

"For the best performance, please run the Yeah Racing Tornado Cooling Fan for 2 - 3 hours continuously on the first time usage."

I have two (straight out of the package, right onto the cars) Tornados that are three(?) seasons old and are still going strong, and a couple WTF fans on other cars, purchased right around their initial release... no problems with either, wired directly to the battery.

Now the old GTB fans.. I don't think I ever owned one that didn't end up broken or missing blades.
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Old 05-13-2015, 05:37 PM   #40
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Originally Posted by LasagnaCat View Post
It's mentioned in the paperwork that comes with the fan

"For the best performance, please run the Yeah Racing Tornado Cooling Fan for 2 - 3 hours continuously on the first time usage.")
And what component(s) does this "break-in"?
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Old 05-13-2015, 05:41 PM   #41
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And what component(s) does this "break-in"?
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Old 05-13-2015, 06:02 PM   #42
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This is why nothing in the rc world ever gets accomplished. Grown men arguing about tiny fans...
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Old 05-13-2015, 06:14 PM   #43
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Originally Posted by theproffesor View Post
This is why nothing in the rc world ever gets accomplished. Grown men arguing about tiny fans...
For a two+ page thread here, this has really stayed pretty civil. For some members, these products contribute to their livelihood... for the rest of us, they're toy cars.

If members didn't have ongoing discussions about (this vs. that) parts and pieces, they'd have nothing left to blame for their poor performances except.. well, themselves.
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Old 05-13-2015, 07:07 PM   #44
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Originally Posted by theproffesor View Post
This is why nothing in the rc world ever gets accomplished. Grown men arguing about tiny fans...
I disagree. We are sharing information about fans. There doesn't seem to be much in the way of argument.

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Originally Posted by LasagnaCat View Post
For a two+ page thread here, this has really stayed pretty civil.
I agree, and this is as it should be. I was really hoping to find out something that I didn't know before, hence my question. I can't think of anything in the electronics of these fans that needs any break-in period. Do the bearings need to be run in? I've never seen that on any of the fan manufacturer's data sheets.

Is there some change in performance that can be measured after a certain amount of running time? Maybe a change in speed or current drain?

By the way, I loved the photo!
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Old 05-13-2015, 07:20 PM   #45
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Yeah I could see a brushed one needing a break-in but what would be the point with brushless?
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