2002Z06Yellow said:can someone please explain what the picture says?
The comment about the clay test was in reference to the shim statement in his post. I was thinking out loud that he may be thinking it was caused by weak valve springs or not at the correct installed height. I would think that during the cam degreeing process you might feel this type of contact when you manually roll over the engine. Maybe not.Vette1171 said:my guess is -.08
I brought the piston to TDC and taped off the the bore. I used the 2.125"(? I'll check when I get home) intake cutter and went .090" deep. Vacuumed chips, and removed tape.OneQuickCoupe said::jammin: Thanks McRat. Now theirs some info I can use. Did you run a vacuum or what ever when you made the cuts? How much did you remove? Inquiring minds want to know.
It will depend on your cam ramps, but yes. The valve out accelerates the piston on it's way down. This is because the piston doesn't move down very fast until about 30 deg.OneQuickCoupe said:McRat,
At 10 degrees is the intake valve chasing the piston down the bore? Is that the closest postion in the piston to valve relationship?
1-If you never had the heads off then the valves are stock size. AFR heads have larger valves which adds to the problem.smithsc said:I've got about 6000 miles on my TRex install, with (knock on wood) no problems or funny noises to date. I had the rev limiter moved to 6800.
Also have COMP921 springs as well. Heads have NEVER been off the engine.