[prandelia]

I just got off the phone with somebody at Fluidampr, they told me the control of the higher peak/amplitude angle vibration in the 3rd order is of more value/importance. Now I can understand that case to be made, as that is the actual angle of vibration on the crank.

With the supposed tight bearing clearances these motors have, I assume control of any large torsional vibration areas may be of the greatest value. But they also conceded that their damper can't do everything for this application and it begins to shed off it's high frequency control a bit more than OEM. I can only assume it's due to weight and the frequency this one is more tuned for. I'm guessing they could probably design one more for high RPM as well, but didn't have that discussion yet.

Good discussion, however they didn't fully answer my questions, they just pointed to the biggest delta in the graph and said it was the best.

I can also see how this damper may be a good choice if you decide to run a lightweight flywheel as well, as it may have the more broad ability to dampen the shift in harmonics it cause over the OE one.