Originally Posted by
Karlos G
Karl Norris talking about Newman cams and CVH cam wear in general.
Check your Oil pressure!!
"Hello folks,
We worked with newman in testing and developing the hydraulic profile CVH cam before it went into production.
After extensive testing we found the cam and follower material to be EXTREMELY hard wearing and far better
than the original hardenable iron.(std material)
In light of this, anyone who suffers a cam lobe failure is almost certainly due to poor lubrication.
This is likely caused either by blocked oil feeds in the head for lubrication of the cam lobes, or more than likely very poor
oil pressure that 90% of RS turbos have these days.
Remember it is easy to blame a product, but when we have extensively tested a product before its production launch,
I can confidently say that most of you with failures should be looking at your engines first, as no camshaft can ever work without lubrication,
no matter how hard wearing the cam is!
To test your engines fit a decent quality mechanical oil pressure gauge and DRIVE the car until it is fully warm.
Then test the pressure at idle where it must be a minimum of 15psi, and then hold the revs at a steady 3000rpm in
neutral where you must have a minimum of 45psi. If your engine cannot achieve this oil pressure with hot oil, then the camshaft will never last. PERIOD!"
and when did karl help test and develop the product?i was using this cam in 2001 and can never recall newman being mention on this site
when did ollie and tim move to newman cams