Sorry. I didn't read the whole thread about the rubber dampener.
But it shouldn't matter which pully is made lighter. Anything that the belt TURNS could bennifit from being lighter or removed. It all weight that has to accelerates or decelerate buy the rest of the engine. Example, remove the AC compressor.
But now go deeper. So anything that is turned buy the engine can bennifit from wieght reduction. That's why we talk wheel weight and size too.
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