10-03-2018, 11:00 PM
I have a standard cam with 3/4" radius followers.Generally speaking, advancing the valve timing will increase power in the lower rev range, the tradeoff being loss of power at the top end.
Does anyone have firsthand experience of varying the timing, if so was it worthwhile, how much advance was given( crankshaft degrees, or inlet valve lift at TDC) and how accurately were the percieved gains measured.
Is the gain because more mixture is being drawn in, or is it that the dynamic compression ratio is increased by virtue of the inlet valve closing early.
Any informed comments would be appreciated.
Does anyone have firsthand experience of varying the timing, if so was it worthwhile, how much advance was given( crankshaft degrees, or inlet valve lift at TDC) and how accurately were the percieved gains measured.
Is the gain because more mixture is being drawn in, or is it that the dynamic compression ratio is increased by virtue of the inlet valve closing early.
Any informed comments would be appreciated.