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i was wondering what you guys adjust your valves to. if there is a better number then factory spec, i plan to do it today or tomorrow
As for the "rule of thumb" are those clearances correct for our motors? Please correct if I'm wrong. I'm still learning about these motors.There are no "rule of thumb" valve settings. Every engine manufactuer does extensive design testing and calculations to determine the appropriate setting for that valve train, things like the rate of lineal expansion of the various compnents at different temps, rate of cooling of the valve head when the valve is closed,length of time the valve is on it's seat, piston to valve clearance etc, etc. Increase in performance and noise reduction (what noise in a Cummins) would be barely measurable and would hardly be worth risking the burnt or bent valves.
It's also interesting to note that high performance camshafts, like GM's 30-30 shafts, are designed for higher valve clearances, not tighter. What does that suggest?
Steve g
That we don't have 30-30 cams?:rofIt's also interesting to note that high performance camshafts, like GM's 30-30 shafts, are designed for higher valve clearances, not tighter. What does that suggest?
Steve g