> I believe the math says the I6 is smoother than the boxer 6 Both designs (I6 and boxer) can have perfect primary and secondary balance. An I6 should be a sm

> I believe the math says the I6 is smoother than the boxer 6 Both designs (I6 and boxer) can have perfect primary and secondary balance. An I6 should be a smooth ICE, but there are other sources of vibration in these systems beyond inherent balance of reciprocating components.