Zinc and the flat tappet cam

[rdorman]

While this topic have been covered well, a nice article in the recent Circle Track had some confirmation of what I am others have been saying. I truly enjoy Circle Track for the tech articles even though I have never, and may never, set foot on a circle track. Good stuff that applies.

Anyways, the article goes on to confirm the 1200 - 1500 ppm for flat tappet cams, reminds us about phosphorus as well and talks about some specific oils such as Brad Penn. It also made me aware of a product I was not familiar with (or forgot about!) ZDDP Plus.

It also brought back up a good investment if you are running a flat tappet cam, nitriding. A number of cam manufacturer, including Comp Cams, offer the service in house for a very reasonable sum... about $150. Claims have been made as high as a near zero lobe failure rate and life spans of 10 -12 times longer. Sounds almost to good to be true doesn't it?

And, it has one of the best common sense recommendations... talk to the cam manufacturer. They know what kills their cams.

Nothing ground breaking here for those who have followed the discussion, more a confirmation.