My Oregon cam regrind came in yesterday. It is grind #218, mild, I & E duration at .050 is 225 degrees, duration 260, lobe separation 108,intake centerline 108.
I need to settle on a target static compression. Does this dynamic cranking compression sound right? 154 psi. Here are the variables that I plugged in giving the calculated 154 figure.. Alt. 1330, bore 3.86, stroke 3.44, rod length 6.25, intake .020 before closing is at 58 degrees ABDC, static compression 9.7:1. The 154 psi seems lower than expected so I would like someone else to have a go at the numbers.
Mike, located in the Siskiyou mountains, Southern, OR 292 powered 1946 Ford 1/2 ton, '62 Mercury Meteor, '55 Country Squire (parting out), '64 Falcon, '54 Ford 600 tractor.
