Thunder8A36, it appears that you have misinterpreted my posting. I was responding to FalconWings' question(s), not your posting.

Also, do you have data that proves that the BVM engine will "over-rev" in a Dynamax?
Last I heard, the max HP output of the BVM 91 was equivalent to that of the OS 9.1 per the engine performance test carried out by Mike Billington in the UK several years ago (published in RCJI as I recall). The BIG difference between the two was that the BVM engine could survive the sustained higher rpms associated with operating in a Viojett. The OS 91 will also turn 24k in a Viojet, but not for very long....

Peter