---> combustion pressure, though that instant may not occur exactly at TDC, because of the shape of the combustion chamber pressure curve.

I can't argue with the rest of what you said. But, let me see whether I got this straight:

It seems, the heat soaked run with higher boost, but equal air mass flow, should have had the higher tendency for pinging. Did the timing pull back, thus causing a heat soak power loss?

Well, it's a little hard to visualize your test scenario from afar. Don't waste your time explaining, unless you feel like it. :-)

VonK


"Not dead yet...!" (Monty Python)

"A little bit of knowledge is a dangerous thing." (unknown)


vonk at bayarea dot net


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