Tom,

On the surface that may appear to be a solution, however the two masses bolted solidly together would behave quite differently and present the engine with a flywheel that is too heavy. Remember that since the two masses are elastically coupled, the engine is not presented with a flywheel that is simply the sum of those masses. It is actually a far more complex system that is the result considerable analysis. The clutch disc for a conventional system also includes shock absorbing springs in its hub. Those springs are absent in my clutch as the "elasticity" of the dual mass flywheel takes care of that.

Greg

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