Keithc8 Keith I talk to 3 valve companys about running titanium valves on the street , this is without coatings and they all say that the heat cycles kill the valves. I got 1 tech who said he has been running them in his everyday drive and had 10k without any problem. There is always one.
Oiling of the rollers seems to be the killer on roller lifters, I am thinking of grooving the lifter bores so the
oil runs down the lifter and hits the wheel area. They do this on SBC motors. Start with a .010 groove and see what happens. A single plane manifold with a plastic center will let you look inside the galley with the motor idling and watch the motor oiling. The other idea is a sprayer system to put
oil on the cam shaft. I have been trying Lucas
oil in my truck motor and let it sit for weeks. I start it up after 2 weeks and the motor is quiet without rocker noise for the first couple of seconds until oil pressure builds up. Climbing or clinging oil may be an answer to helping the problem. Have you tryed a set of beehive springs on one of your motors yet? Thanks Keith. Are you going to enter in the engine masters challenge?? Rick Lake