Hi, I know there has been a bit of discussion on valve springs previously, but I still am not entirly convinced why I need to upgrade the valve springs when
boosting with standard cams. I get the fact that there is "say" 20psi boost acting on a 35lb spring, thus the spring will only have an effective
rating of 15lb pressure. However surly this is only during one moment of the 4 stroke cycle (intake) which is when the valve needs to open anyway. The rest of
the strokes the pressure is either equalised or there is a greater pressure in the cylinder so it is no longer an issue.
And if upgrading the spring, does this not add increased wear to the valve train?
And why not just replace the intake springs and keep the standard on the exhaust?
I have just put in an order for my top end (MTC pistons, spacer, bolts & nuts, ss valves, and ape 65# springs), so have the goodies ready to go, but I really don't like doing something unless I understand the logic.
Any advise would be very appreciated. Regards KiwiBusa
And if upgrading the spring, does this not add increased wear to the valve train?
And why not just replace the intake springs and keep the standard on the exhaust?
I have just put in an order for my top end (MTC pistons, spacer, bolts & nuts, ss valves, and ape 65# springs), so have the goodies ready to go, but I really don't like doing something unless I understand the logic.
Any advise would be very appreciated. Regards KiwiBusa
Just got to build my turbo system next.
