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Registered
Join Date: May 2004
Location: Boulder, Colorado
Posts: 7,275
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It was under full load, accellerating the drum of the chassis dyno (inertial type).
Letting off the throttle at full load at high rpm is pretty common on a race motor under normal track conditions. Like about for every corner of any significance. I am dubious that this is related particularly to an inertial chassis dyno, but am open to theories. Closed throttles = high vacuum = more downward load on the wrist pin?
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