So, well over a year ago, I built one local a Nitron. It served well, fired many thousands of rounds without a hint of trouble, and gained a legendary and feared reputation as undodgable full auto Vortex ought to.
Then someone just had to decide that its original 12V NiCd pack was not enough and try a 5S lipo. Okay, I could understand a 3S lipo, that would be almost the same voltage with less IR, less weight and better performance over the life of the charge. I could understand a 4S lipo, even. But, a 5S lipo. Come on, seriously, you guys can tech guns and you know why it was a bad idea.
But end of story, the factory 280 flywheel motor ended up roasted and the RS carbon pusher motor probably on the way out. Now, the pusher motor, who cares, you can just slam any 130 or 180 on there and go, but the flywheel motor...
This is a good thing, because 280 motors hotter than 112 turns are, almost all of them on the market. The most common wind of stock 280 is -2485 (85t). That should work great for Nitron fly motors assuming the shaft issue can be dealt with.
Custom shafts may come into play here. The comm and armature stack can be pressed off the shaft and a new one fitted. This would be a tedious procedure but perhaps necessary.