Please confirm new rocker set up
03-14-2008, 10:42 AM
#1
Please confirm new rocker set up Going from 1.7 stock to 1.75 rollers, will check wipe pattern & rode length.
AFR 205 heads decked .005", .045" Cometics, valve lift increase of .01765" @ .600" lift once 1.75 rollers are installed. Cam is a Comp #XR269HR-14, gross valve lift of 0.525" intake & 0.532" exhaust. Lobe lift of 0.309" intake & 0.313" exhaust. So, I figure the valves are .005" + .010" + .0177" = .0327closer to the pistons then they were previously.
Does anyone see any piston clearance issues?
AFR 205 heads decked .005", .045" Cometics, valve lift increase of .01765" @ .600" lift once 1.75 rollers are installed. Cam is a Comp #XR269HR-14, gross valve lift of 0.525" intake & 0.532" exhaust. Lobe lift of 0.309" intake & 0.313" exhaust. So, I figure the valves are .005" + .010" + .0177" = .0327closer to the pistons then they were previously.
Does anyone see any piston clearance issues?
03-14-2008, 10:44 AM
#2
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your .0327 is at max lift, which is irrelevant when it comes to piston to valve clearance since the point where they piston and valve is closest is at TDC which is when the valves are close to closed rather than full open.
