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Old 12-13-2012, 02:48 PM   #91
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Best and strongest fans....

http://www.youtube.com/embed/S2nYtZyyfHA
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Old 12-13-2012, 02:51 PM   #92
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A bit off topic, but related to cooling- anyone tried using thermal paste between the motor and heatsink?
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Old 01-10-2013, 06:54 AM   #93
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After testing with lots of cooling fans, the top two that I have tested are:

*Yeah Racing 30x30mm
*LRP Esc 25x25mm

Those who are using Hobbywing and 3Racing fans, do yourself a favor, it is only dead weight, it does not cool anything.

I'll be receiving in a few days the Seis Fans and Yeah Racing's 25x25 to see how they match up against each other.

I'm testing these fans using the scale method (Like Yeah Racing's videos) and an anemometer.

Other fans that have been tested:
-Muchmoore High RPM fan 30x30
-R1 Wurkz 40mm fan
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Old 01-10-2013, 07:01 AM   #94
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how are you testing? are you using a flow test or just what you feel moves more air? You should give http://www.sidepieceracing.com/products/seis/ a try. I know I've seen a 30 degree change when running outside. Back to back testing has been done on a 17.5 motor running 6 minutes on an asphalt track.
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Old 01-10-2013, 07:09 AM   #95
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Quote:
Originally Posted by Serpenteer View Post
I'll be receiving in a few days the Seis Fans and Yeah Racing's 25x25 to see how they match up against each other.

I'm testing these fans using the scale method (Like Yeah Racing's videos) and an anemometer.
Quote:
Originally Posted by Jerry P View Post
how are you testing? are you using a flow test or just what you feel moves more air? You should give http://www.sidepieceracing.com/products/seis/ a try. I know I've seen a 30 degree change when running outside. Back to back testing has been done on a 17.5 motor running 6 minutes on an asphalt track.
I'll be receiving the Seis fans in a few days. I'll see if the fans like up the hype, which I hope so.

I'm using an anemometer and placing the fan back-to-back to it. Also using a scale weight and placing the fan against to see what reading it gives. I don't have the concrete numbers here, but if I'm not mistaken, the Hobbywing fans don't even give a reading or gave a 0.2-0.3g compared to LRP Esc fan (from an old TC sphere) gives a 2.6-2.7g reading.
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Old 01-10-2013, 07:32 AM   #96
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The Yeah Racing 'is' very good, it pushes a lot of air for something so small, taped to a chassis blowing onto the motor makes a huge difference in temps.

Downsides, is they are just a little fragile, they crack easy, and they do seem to like the suggested 'run in' listed in the instructions.
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Old 01-10-2013, 05:47 PM   #97
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Default FRP fan

I have had very good luck with this fan.
http://shop.franchiseracingproducts....m?categoryId=3
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Old 01-10-2013, 07:33 PM   #98
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Quote:
Originally Posted by Bishop View Post
The Yeah Racing 'is' very good, it pushes a lot of air for something so small, taped to a chassis blowing onto the motor makes a huge difference in temps.

Downsides, is they are just a little fragile, they crack easy, and they do seem to like the suggested 'run in' listed in the instructions.
fragile ... yikes!
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Old 01-10-2013, 09:06 PM   #99
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Interesting reading...

Something that hasn't been suggested when using 5 volt fans. Try using a resistor to drop the voltage down from the source. The value of the resistor based on the source voltage and fan current draw. By doing so you aren't overloading the fan motor. Sure, you won't move as much air, but the life of the fan would definately be extended. I guess it's a trade-off between component life and performance.
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Old 01-11-2013, 01:31 AM   #100
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Quote:
Originally Posted by BBJ View Post
Interesting reading...

Something that hasn't been suggested when using 5 volt fans. Try using a resistor to drop the voltage down from the source. The value of the resistor based on the source voltage and fan current draw. By doing so you aren't overloading the fan motor. Sure, you won't move as much air, but the life of the fan would definately be extended. I guess it's a trade-off between component life and performance.
If people just buy a fan with a wide enough input voltage range then 6V won't matter.
Normally the fans will get damaged before the electronics gets a chance to fry.

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Old 01-11-2013, 01:44 AM   #101
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The Crazy fan (40mm) form rcmushroom is really good too, i used the tornado 30mm before but i like the crazyfan better, plus its half the price of the yeah racing
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Old 01-11-2013, 03:55 AM   #102
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Quote:
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The Crazy fan (40mm) form rcmushroom is really good too, i used the tornado 30mm before but i like the crazyfan better, plus its half the price of the yeah racing
Not sure if you have to follow ROAR rules, but that is to big to be ROAR legal.
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Old 01-11-2013, 05:17 AM   #103
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Ah there are no rules regarding fan sizes in sweden
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Old 01-11-2013, 09:54 AM   #104
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Quote:
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Ah there are no rules regarding fan sizes in sweden
I'd say that may be one of many good reasons to move there.
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Old 01-11-2013, 10:18 AM   #105
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Quote:
Originally Posted by Adam B View Post
I have had very good luck with this fan.
http://shop.franchiseracingproducts....m?categoryId=3
Adam, have you tested these FRP fans against the Yeah Racing ones back to back??
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