View Single Post
  #32  
Old 02-03-2023, 12:42 PM
quick67bird's Avatar
quick67bird quick67bird is offline
Ultimate Warrior
 
Join Date: Mar 2005
Location: Tri-Cities WA
Posts: 1,769
Default

Quote:
Originally Posted by Stan Weiss View Post
This is a Crane / Pontiac 041 RAIV cam valve lift curve with different rocker arm ratios.

The green line is with 1.75:1

The red line is with 1.65:1

The Blue line is with 1.5:1

Stan
Thank you Stan. The graph looks like duration is increased like lift is when the rocker ratios change. I kind of thought that, but the visual helps.

__________________
67 Firebird 467 cubic inches 7.71 @ 92 in the 1/8 and 11.69 @ 115 in the 1/4.