Doc Sprocket
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That is news to me, and I'm honestly not grasping it. Peak RPM is peak RPM, peak HP is peak HP, and if it takes a week to get there, it's still the peak.There hp isn't based necessary on rpm but on hkw quickly that said engine acheives that rpm...with different springs in the engine u can get to a target rpm (hp) either quicker or slower that is what briggs does to determine hp
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Let's just say that I went from belief to total scepticism with the change of a spring...