Just want to confirm that PST TEMS ecu is NOT fully programmable or OPEN as per GB's TCU for homebuilders. You cannot set the critical values to exceed safe design parameters. Its impossible to set the ecu to fail the turbine. The ecu is also specially pre-programmed for the J600 only.

For our destructive test for AMA, we have to disable the ecu and use override mode (which is not possible thru TEMS ecu) to bring the rpm above safe sustainable speed of 160,000 rpm. This simulates total ecu failure and putting maximum available voltage (7.2V 6-cells Ni-Cad) to the fuel pump. Result: the J600 spinned to maximum of 179,000 rpm and cannot increase any further regardless of the fuel pump's output. The J600 can sustain this over speed to almost 20 minutes when the rear bearing would overheat causing the turbine inalignment and the rotor assembly just simply freezed. Turbine remained intact with no catrastophic failure or particles thrown out. The said test result can be expected for any turbines built per design..nothing special.

To make the J600 fails by programming the ecu is just not possible.

Thanks for all the support.
B777