|
Re: Valve Spring choice/seat pressure ??
The stock intake valve is 34mm. That's 1.338 inches in diameter. Or 1.406 inches squared of area. 23.5 PSI on a 1.406 square inch area = 33.04 lbs of force. 35 PSI on a 1.406 square insch area = 49 lbs of force.
Those calculations assume the stated pressure on one side (23.5 and 35 PSI) ,and 0 (ZERO) PSI on the other side. In most points of an engine's operation (intake, compression, power and exhaust strokes) it will be in a state with much less pressure differential than than (cylinder pressure being higher for a lot of it)
|