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If you teach them to whistle, they will buy them!Dang DH, now all the turbos I was going to sell lost their value!
By "modified" do you mean rebuilt? I was curious to see whether the factory built engines fared better than the Toole rebuilds.
-Chuck
How much if anything (longevity) would be gained by balancing the rotating assembly?
the vane design and count on the turbine exducer. compressor inducer designs can also create whistle on some turbos (like the holsets on the dodges).Why does a whistler (C turbo) whistle, and a D turbo not? Is just the speed it happens to turn, or is there some other mechanism?
-Chuck
My only problem with that hypothesis is the rod journals I have seen pictures of have universally been clean and shiny. That is atypical of bearing failure.Somehow I don't think that the key lies there....that said, it IS probably something that could/would increase both harmonics, smoothnes and longevity, But what is starting to appear is the lack of oiling to number 6 rod and main.....thus loosing the bearing leading to rod breakage and ventelated block...and colateral damage.
Ok, I see the direction you are going. I hope we can get some more anecdotal evidence on blow ups. It would be nice to see if there is a pattern.I'm thinking 'turning up the fuel' or the spin-on filters or the pre lube systems.
That is what I figured. I can hear some whistle in every turbo, but the C sure seems to stand at the head of its class (in whistling).the vane design and count on the turbine exducer. compressor inducer designs can also create whistle on some turbos (like the holsets on the dodges).
Mine came out of WI/NG's PMCS. It has a vise on the bumper, and seemed to be well taken care of.... But! I don't believe the NG units ever got their trucks new. Mine had a machine gun mount at one point that had been removed. So obviously, she had a few other roles.Another thing that would be interesting to know is what unit the trucks in question came from. I have found out that my truck came from a maintenance unit of the TN/NG. The truck never left the NG base and was only used to haul maintenance items on base. I tend to think it had a much easier life than most other trucks.
Plese send or post the link to that "entire topic" you wrote about.there is an entire topic that covers this with info from the military and all the possible reasons why. you'd be very surprised at the information contained in that topic.