docc Posted December 19, 2021 Report Share Posted December 19, 2021 4 hours ago, ScuRoo said: Harmonic vibrations... Had no visual comprehension on how an engine created these - I guess I just kinda assumed it was produced by the combustion bangs💥 ...turns out it’s more related to the stroke travel speed differentials! Amazing F1 in-depth explanation in 1st half of this vid (the 2nd half is pure tech-sex!) just learned me! But... it’s in the noggin’ now! Holy cow! That is so geeky! I watched it beginning to end, paused, replayed parts, and took notes . . . Brian Garvey's explanation of secondary vibration (and the Formula 1 solutions) is stunningly clear. Even I get it (now)! When he put up the image of the timing gears from the Cosworth TJV10 (24:05), I grabbed a screen shot to remind myself part of why I would like Joe Caruso's gear set in my Sport. Elegance! (At 16:04, Garvey says, "You never turn an engine backwards." Why is that? Any engine?) Link to comment Share on other sites More sharing options...
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