Frosty
03-21-2008, 05:46 AM
I got my L-92 motor all done and we put it on the engine dyno. Make a few heat cycle pulls then get ready to rev it. On the power pull the thing is making great power until it starts floating valves at 7300 RPM. This is with TITANIUM valves and springs that are far beyond a comp 921 spring. this thing should pull to almost 8k no problem. We check lift at the valve and its .030 more than what the cam card says!! We KNOW the cam is good so we start looking at the rocker geometry and find out that its all jacked up. Its so far off the pushrod is moving about 3/8 of an inch toward the intake during the arc! I don't know much about it but the guys at the shop told me that when the rocker starts its almost at a 2:1 ratio and at the end its about 1.5.We call T&D and they say there is nothing wrong with their rocker its our cam and spring. How in the hell can a cam and spring mess with rocker geometry? T&D is saying they will not take a return on the rocker.To make it even worse T&D claims that they know the rocker is fine cause Judson @ S.A.M. is using these same rockers at close to 10k RPM. Little did they know 2 of the guys working at the shop went to S.A.M. and know for a fact he is using Jesel J2K stuff. I am hoping they will fix this problem and soon!. If not im going after some Jesel parts!!