1.5 vs 1.6 rockers
What rumblefish says, there wont be a change at .000 lift what so ever, but the more it sweeps through the cam ramp, the lift spec at each measured interval is achieved sooner on the opening ramp and later on the closing ramp, hence making the profile ever so slightly more longer or "aggressive" . For eg .050 occurs earlier in degrees of cam timing (as measured at the valve) because of the ratio change, therefore a not longer at .000 but longer at any other measured position profile of a cam.
What rumblefish says, there wont be a change at .000 lift what so ever, but the more it sweeps through the cam ramp, the lift spec at each measured interval is achieved sooner on the opening ramp and later on the closing ramp, hence making the profile ever so slightly more longer or "aggressive" . For eg .050 occurs earlier in degrees of cam timing (as measured at the valve) because of the ratio change, therefore a not longer at .000 but longer at any other measured position profile of a cam.
