Eric's cam challenge
Very interesting. Comp cams quality control has been in a downward spiral for a few years now.
This spring I had a customer who thought there was a problem with a BBM roller I’d sold him.
I had Comp run it thru the Adole 911 laser camshaft measuring machine……..way more accurate than a cam dr.
That particular cam measured out excellent, not just the lobe accuracy, but bearing roundness and runout, lobe runout, bank angle accuracy, etc………he had other issues.
What I found interesting is Eric was comparing data derived from two different machines.
I wonder if he would accept flow numbers from someone else’s bench, or if he’d want numbers from his own.
Oh wait, we know the answer to that.
I can only think of a few of cams that I measured that strayed pretty far from the specs on the card.
This was like 25 or so years ago.
One was a Herbert roller for a SBC, and two were NHRA stocker cams for a Pontiac.