Blatant,
You are wondering what will happen if you deliberately over torque and engine... I'll let you think about that and see if you can work it our yourself.
BTW you don't have a throttle in a turbine....
Last time I checked some turbines had a thing called 'Auto-throttle'. Forgive this crucial error. Power lever then, I stand corrected.
No need to use that tone buddy. Exactly my point, is it really over-torquing? The gear box is having no more than the maximum torque allowable go through it. The Ng is within limits. The ITT is within limits. What is the limiting factor? Is it the way the engine is mounted to the airframe? Is it purely a certification thing?