Ducted Brushless Fans for boost?

So i tested the pressure of that 50mm fan. It is rated at
50mm=715W MAX in 25.2V. 30 amps..
I tried it on 5s it made about 1psi with no flow... BUT it got so hot that it would melt down on 5s so it's irrelevant that it made 1psi.. I could do more testing but i dont see there is any point as it gets to hot to every be used no matter the results.
 
mcm89434 said:
Just about impossible to get any info other than it putting out about 17 pounds of thrust. My bigger concern is it being Chinese, and if the blade were to come apart it could jam the throttle open or be sucked into the engine. Still researching............
Click to expand...
There are metal blade and housing versions but they ain't cheap
 
I'm actually building a cheap plastic prototype just like this to put on my 223cc buggy. I used the motor and ecs out of a powerful hand held brushless leaf blower (20v) I'm just having trouble figuring out how to attach a trigger on off switch to the ecs. I want to attach the switch to the carb so it only activates a full throttle.
 
It's a trigger like a drill but I want to use one that i can put on my carb to activate at full throttle. The picture with the black switch came off the leaf blower and the green one is what I'd like to use.
 

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I have 3 pole and 2 pole switches. I also have several different ecs for rc cars if those are easier to adapt. I saw on one of your videos you used 2 servo testers with a red button that keeps one at zero and the other at full throttle. I have those same testers but I'm not sure what you connected them too. Something like that would work perfectly if I could attach the kind of switch I want to use with longer wires in place of where you have the red activation button. I'm very ok with buying more stuff to make this work. Once I figure out the wiring/throttle I'm gonna buy a turbo and attempt to build a real electric supercharger. Your videos are very helpful and inspiring. Thank you for everything!
 
Switching between the two servo testers has worked for every ESC I've tried it with. Using an ESC you already have might be easier if you're not able to decipher the factory wiring.
 
I tried all weekend but still can't figure it out. Do you have any videos on your activator switch designs? I can throttle the motor up with the turn knob but that wouldn't be practical while driving my buggy through trails. I have to figure out how to adapt a switch that will turn on the motor at full throttle and off when I let off the gas. I would attach the switch to the carb or the gas pedal. Do you know if this is possible with brushless esc?
 
I don't have any videos on the control setup, but if you can control it with a servo tester, then it'll work. You just need two servo testers, one set to zero throttle, and the other one set to whatever you want the motor to spin up to. You can use the BEC power from the ESC, or you can use stand alone power for both servo testers and the relay. If using the BEC, just get a 5 volt relay and switch the signal from the zero throttle servo tester to the full power servo tester. You don't need to switch the ground or any other pins.
 
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