Mr. XFire thanks! Good luck with your new diagnostic/research equipment! I will look forward to your findings, which I hope you share with us!
Marc, I guess I should have phrased "doubting the wisdom that GM brought..."
in a different way. I wasn't trying to be insulting to GM, et al.
........But I'm guilty as charged with the 5k rpm thing....I guess I get carried away with corners all strung together. I know I can "see" the spike in temps after awhile, water goes up and then the oil starts to climb if you're too high in the rpm band for too long. I notice it if I'm using 2nd & 3rd more than 3rd & 4th for more than 15 mins..... you keep bumping up against that 'circulation/by-pass limit'. I know the easy answer.... don't do it at all. It just seems to me that it's such a waste to have all that "room" on the tach, a balanced forged crank & rods, and No Push Rods!.....and not being allowed to use it.......for very long periods of time....it's just not fair!
Tom