Measured a bunch intake and exhaust valve springs today and I am confused. My setup reads in PSI(40-45psi for intakes and 30-35psi for exhausts).
My 1.6L FSM lists the spring pressure(tension?) 228 Nm @ 1.575"(Closed). It also has that listed in 23.3 m/kg and 168 ft/lbs. Not sure how Mazda thought it was a good idea to list this measurement like that. I can't for the life of me figure out how to do this conversion. Any ideas?
I read a little online that some FSMs may actually have a PSI reading. Anyone want to have a look? Engine builders want to poke me in the right direction?