Re: KG4 RPM limit of Points? Or different cam lobe profile?

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October 1, 2017 at 8:04 pm #65638
foot_doctor
Participant

    What model is H20? If you mean MK20H, the cam is an integral part of the crankshaft, and exhibits a gradual closing ramp. It shares this configuration with the MK25 Mercury crankshaft. I can assure you that at 7000 plus RPM at racing trim, the Phelon Mag. was up to the task. When I had my mag testing machine, we commonly tested those mags at 8000 plus RPM with no discernable points float. R.T.