Re: Changing Camshafts
yo, guys, the sport cams from Schrick's for the m112-113 only give you 1mm=0.039" of lift last time I heard, hardly worth the effort and the money. I don't think they even changed duration from stock set up.
I think your better off making high ratio rocker arms instead..you can relocate the pin for the rollerto get a lot more lift from a redesigned arm. machine shop could easily do these by the hundreds . take a look at the basic design it's quite simple to do. relocating the pin could be done by filler welds then redrill a new location for increase ratio
http://www.youtube.com/watch?v=Y3lFvE1RSHA
basic theory
http://www.pontiacstreetperformance....ockerArms.html
performance gains on a GM3800 engine
http://www.3800performance.com/Merch...uct_Code=MS-RA
Last edited by BlueStorm; Sep 21, 2009 at 12:55 AM.