Yes, we are having some K-70 compressor wheel problems, not all, but some. The factory is looking into the possible harmonic or some sort of sympathetic vibration induced damage to some of these wheels. The factory has a new design of the compressor, the initial testing with this new wheel yields a lower temperature and better thrust. So the new K-70 should have a lower full throttle RPM.

We are very sorry for the trouble and thank you for your patience for working with us.

Regards,
Barry