DemonSVT: You are missing the point. Whether the electrical load is coming straight from the alternator, or more indirectly from the battery/alternator system is irrelevant. You are splitting hairs. The load is the load.
The electrical load demanded at the alternator is what I mentioned. Going to a smaller pulley will not reduce the demanded load.
No - I can't prove that some test somewhere did not show a 2-3HP improvement. But I also can't prove that it lowered the price of tea in China at the same time. I know many of the Duratec development engineers and I know why the DMD was used - for NVH only. NOTHING repeat NOTHING to do with durability or power gains.
The physics are bolting a mass of rubber and steel on a crank and expecting even a tiny power gain do not add up.
Crank twist due to harmonics are measured in the few micron range. This will not effect the lubrication regime of the plain babbit shells, that have operating clearances in the 20-45 micron range.
