Max Lobe Ramp For Solid Flat
Frosty - I have Engine Pro and the book that is meant to acompany it and I've spoke to Don before. Engine pro is based off both math (and every formula is available from him) and thousands of real world results from various racing programs. It's pretty accurate because it's more than just the math. However - in terms of valve motion - the the program only plots those three points because for the most part the subtle differences in lobe shape do not present dramatic differences in the actual power produced. So to simplify the calcualtions and better represent the empirical data that Pro was based on they dumbed it down.
In terms of my hypothetical - in my opinion - assumptions have no place in the discussion. The "correct" answer (again - by my thoughts) is there is not enough information given. you cannot tell which makes more power, or where in the rpm range based soley on those figures. In and of themselves, they mean very little in terms of total output until you apply them to a specific engine and in that case they are more of an indicator than a result.
Thinking of it in terms of a person - if I say "my temperature is 102°" you can assume I'm sick and have a fever or ask about more details of the situation. Is it hot out? What have I've been doing? How long has this been going on? Or even ask if I'm estimating or using a thermometer. But just saying I'm 102° means nothing on its own. I could be just sitting in a warmer room, I could be feeling "hot" and estimating, I could be running a fever, I could be suffering heatstroke, or I could have just come in from running and haven't cooled down yet and nothing's wrong. Same deal with DCR and cylinder pressure.
I hear over and over that you can tell output by those two figures alone. I have not yet seen any facts nor any formulas that can back that assertion up. Assumptions and gut feelings - certainly - but that's where I think the differences lie. I have the same conceptual ideas but I'm taking them out of the discussion and thinking about "just the facts".