Reply to "DPUs and an SD80MAC on NS 10K"

PRR 5841OGR Forum Member

Stuart posted:
I had heard that NS was going to do a rebuild on the SD80MAC's, but I didn't expect them to keep the V20 prime mover.

That is a surprise to me as well. If they retain their original V20’s, do they have be modified to meet Tier-4 or are they exempted? Has anyone been able to meet T4 using a 2-cycle? If so, was it accomplished using urea/ionized water injection (Blue TEC) or EGR?

8/20/199:08 AM

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