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Very interesting. Where can I find the first article? I am quite interested in the way they handled the torque compensation. I also would love to see the comparison of ignition vs AFR to pressure.
If I'm understanding correctly the reason the 500 torque is still driven is due to the "usable" cylinder pressure. As if you were to create massive pressure prior to TDC the duration of the high pressure is wasted during compression, and only partially usable post top dead center. This would visually show the same power output due to massive cylinder pressure and "shock" due to the "spike" of which the cylinder pressure increases. So you may be putting literally 2x the stress & at 2x the shock speed that would translate to possible bearing shift, or other issues due to the requirement for the components to respond to the pressure.
We constantly just think about power output and the spark as being "instantaneous" but the pressure has a duration. You could make 20bar pressure peak at BTDC, but by the time the stroke hits TDC you are only seeing 10Bar, both of these instances would see the same output. But the prior scenario would be showing 2x the stress internally.
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