The guy at MMX on Facebook has been preaching that an MDS cam used in a non MDS application (turned off with tune or otherwise) is bad and will destroy the cam and lifters in short order. Has given a vague answer about the differing ramps on the MDS lobes not doing well with constant use. I know the MDS and non MDS cams are a little different and do differ in the ramps but I find it hard to believe that Chrysler would design something that couldn't last in a scenario where MDS isn't activated/working/etc. What's your take on this?
The factory is not that stupid, they run with the MDS off a ton, they run constantly with it off when the tow haul button is pushed. The only cams I have seen go bad are eagle 5.7s and it don't matter if they even have MDS or not and the MDS lobes are the only lobes I have never seen bad, I have 3 or 4 in my scrap pile right now and none of the bad lobes are on MDS cylinders.
