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Old 08-20-2008, 02:57 PM   #28 (permalink)
HeberRam
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Join Date: Aug 2000
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Quote:
Originally Posted by Coalsmoke View Post
Thanks for the reply, but I still don't see how it would make a difference. The turbos are fixed vane, but they do have a sliding gate (Holset calls it a nozzle ring). What I don't understand is how the soot that has been re-burned because of the EGR system is going to plug the sliding gate up any worse than the soot already coming out of the exhaust manifold?

The best way I know how to describe it is the soot is held in captivity by the re-generation process longer in the engine, until the next re-generation, etc. This causes an accumalative effect on everything including the turbo. Just look at the tail pipe of a properly operating new truck (no soot clean) and an older 5.9.
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