| That pic creates more questions than it answers. You know damn well there are plenty of variables that could cause that problem, including valve and seat material incompatibility, seat width, valve lash, etc. I love how you connect the dots to suit your needs. Don't you find it odd that no one else has encountered this problem? It couldn't be that you're doing something different than the other guys, right? This cam and spring setup was verified to work correctly using a spintron [ http://www.spintron.com/cyctest.htm ] and was designed by a guy who has done this for a living for the last 25 years. Why should I take your word over his? I had a nice chuckle with this gem:
That crap about overhead weight is false and a theory. Sorry man but it sounds nice but isnt right You're clueless. Good to know that your engine valvetrains defy the laws of physics. I bet all those people that pissed away hundreds of dollars on titanium retainers are feeling pretty stupid, right? I'm not going to post up what I know to be a lie or a bullshit answer Don Really Mitch? [ http://www.twinturbo.net/nissan/300zx/forums/general/view/2386839/Re-point-is-that-it-needs-to-be-measurable-not-just-theory.html ] I am working hard right now getting my shop up and furnished and once that's done I will be able to do a test stand for the oil pumps to show improvement. How is it that you claim "15-17% increase of flow (dependent on oil viscosity)" when you haven't even built a test stand yet? You did zero testing. Your post confirmed what I had long suspected, and that is you pulled those numbers straight out of your ass. Given this revelation, why should anyone take your word for anything? YOU CAN'T BE TRUSTED. These pumps do work and I have several of them (50+) out running on a lot of engines (many overseas as well) without issues. Of course they work...they work as well as a stock unmodified oil pump in terms of flow. How do I know this? You made NO changes to the pump displacement. Go ahead and build your test stand. You'll find no measurable improvement in flow with your ported pumps.
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