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I wonder - does it effectively increase the duration? I mean, think about it - the valve will open a little sooner as it ramps up due to the increased rocker ratio (mainly at high eccentric shaft angles), and it will close later too. Physically, the valve is open sooner and closes later, plus it has more lift at peak.
And when BPC posted those videos of the eccentric shaft/rockers, I agree - it really doesn't appear that a cam is going to work. Mainly because it looks like the secondary rocker is already at the end of it's travel. But that's a question. Could you increase duration and keep the same cam lift with a regrind, and use a modified rocker ratio to increase lift?
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