Oggers,
Sorry to burst your bubble, but if you search even here on pprune you will find somewhere Walter posting that he offered USD$1000 of his own cash for every piece of data that Lycoming had that disproved the data shown and collected from the GAMI/TAT dyno (and P&W, CW et al).
He put money where his mouth is. Still has the $$
You could do the same.
