Lifetime Premium Member
Join Date: Feb 2009
Location: Off the rails on a crazy train
Thanked 328 Times in 88 Posts
Feedback Score: 2 reviews
When trying to figure out why the 300, Charger and Ram are not being affected like the Challenger is, think of it this way. Take four ounces of water an fill a small size wine glass. Wet your finger and ride it around the rim of the glass to make it sing. Now, take another four ounces of water and put it into a medium size wine glass, and do it again to a large size wine glass. Now run your fingers around the rims. Three different sounds emerge. The one thing different about the 300, Charger and Ram when compared to the Challenger is height, width and weight. Small, medium and large wine glasses. The harmonics may only be affecting the Challenger because it is in that range where the 300, Charge and Ram might be high or low of the range being of a different size. That's why the harmonics theory carries the most weight, but coupled with other factors that must be present.
Now, the four factors that I outlined a few posts back, i.e., (1) an aging timing chain (40,000+ miles); (2) high RPMs (2,300-2,500 RPM range); (3) sustained RPMs (in the 2,300-2,500 RPM range); and (4) MDS engaged, will create some kind of engine harmonics that resonate throughout the engine and is what is most likely causing the timing chain to begin its fatal wobble out of control. If any of the four factors are missing, the harmonics change and thus pulls the engine out of a danger zone and harms way. There certainly can be more factors that we have not yet identified, but these are the ones known so far which have not changed for some time. Just a theory but it is the one that make the most sense so far, to me anyway. Your mileage may vary.
I'll leave it you all to come to your own conclusions.
Last edited by raVenX; 12-27-2012 at 03:47 PM.