Start running into issues TP motor oversaturated?

Basically, I'd push as much power as I could. Eventually your ESC will hit 100% duty cycle - that is really what you want. If you don't have duty cycle in your log, you're looking for motor phase current to equal battery current as much as possible. That would be at least close to 100% duty cycle.
 
Okok so 100% duty cycle would be for example 300A input current with 300A phase current wich is peak current I suppose?
BTW I officialy order a castle 1721 motor
 
Yes - that's right. Or as close as you can get. If the problem does turn out to be the TP power motor, I'm curious what happened to it.
 
Maybe the pull I've made damage the magnet. The heat was maybe enough to damage the magnet and the pull was small enough to not heat all the motor?
 
Ohoh 😰 the impeller have damage. Apsolutly no play could've done that. The ONLY thing look to happen is **maybe** the impeller shaft flex OR the blade flex. Don't look the sharpie mark or the black. Look the zoom blade on the 2nd picture
Screenshot_20220709-224700.jpgScreenshot_20220709-224722.jpg
 
Wow. Maybe it hit some kind of resonance? Is it just relying on the motor bearings, or is there another support bearing?
 
maybe this chinese knock off was never built to run at 68k impeller rpm ... 🤭
a bent shaft would leave damage at a limited number of blades ... whereas blade flex due to airmass would most likely impact more (all?) blades?
 
I looked for some bearings for my own project, but still with ceramic ball bearings is max rpm around 50-55k rpm for my shaft. I dont know what your bearing handle, but on normal turbo engines compressor will be damaged all around when the bearing has play.
 
I dont know if its you I suggest a website where they can build custom bearing? Mine is rated at 100'000 RPM. The "play" I have is extremely litlle. Compare to what it take to rub on the compressor housing
 
Thinking about this some more, I wonder if the impeller to volute contact and your current spikes are related? If you have access to a high speed camera (longshot, I know), you could try videoing the impeller - anything over 1,000 fps will likely give you useful info. There are actually a bunch of Sony cameras that can do that - or at least 960 fps. An old FS700 (I had one for years - sold it last year); an RX0 or an RX0 II, RX100, etc.
 
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