On a model railroading forum I saw in a thread on bashing an SD60E that the Tier 2 upgrades for these is custom, or at least not EMD's ECO.
Does anyone have any details beyond "intercooler fan in the intake box?" Is this entirely an Altoona custom? Anyone know why they did this instead of just ECOing them?
YoHo1975 On a model railroading forum I saw in a thread on bashing an SD60E that the Tier 2 upgrades for these is custom, or at least not EMD's ECO. Does anyone have any details beyond "intercooler fan in the intake box?" Is this entirely an Altoona custom? Anyone know why they did this instead of just ECOing them?
Editor Emeritus, This Week at Amtrak
Aside from confirming that the Radiator mods are Altoona custom, it doesn't really tell you anything more.
For example, I assume it's a V16 though that isn't stated (needed to get to 4000HP)
How are they getting T2 emissions with split cooling out of the stock radiator grills?
In short, I'm curious who they have managed to do something that EMD has not?
It's a 16-710 with electronically controlled fuel injection - so you can vary the injection timing and duration independently of the rack - and split cooling, so you can keep the charge air cool. That'll knock the stuffing out of NOx!
The split cooling has the intercooler loop with it's heat exchanger behind the DB fan, between the intertials. Take a look at some pix and you can see how they did it. (google SD60E, then select "images") There are some half decent roof shots that show how the intertials are moved out and the intercooler radiator fan is mounted.
I believe Juniata has their own emissions test shed so they can certify the results of their own creations.
-Don (Random stuff, mostly about trains - what else? http://blerfblog.blogspot.com/)
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