Railroad Forums 

  • UP SD-32ECO Program

  • Discussion of Electro-Motive locomotive products and technology, past and present. Official web site can be found here: http://www.emdiesels.com/.
Discussion of Electro-Motive locomotive products and technology, past and present. Official web site can be found here: http://www.emdiesels.com/.

Moderator: GOLDEN-ARM

 #707017  by Super Seis
 
From Loco Notes:

Yesterday GEXR lifted another three UP SD60Ms from CN London East to be delivered to the EMCC plant, perhaps today.
UP 2473, 2511 & 2520 are currently at Stratford, waiting for the southbound trip to the plant in London.


Apparently, UP is in the midst of a SD-32ECO upgrade program.
 #707143  by Jtgshu
 
Glad to hear it! Seems like the ECO program is starting to catch on a little bit with the big boys!

Now, the 32 will mean it will have the V12 710 with the roughly 3100 HP, right?

I find it interesting that they are replacing the V16 710 albeit 20 plus years old 710 with the V12. but its only a couple hundred HP difference with 4 less cylinders, which would equal signifcant fuel savings.
 #789907  by D.Carleton
 
tomjohn wrote:Are there any pictures yet I would like to see them.
Here's one:
http://www.rrpicturearchives.net/showPi ... id=1991795
http://www.rrpicturearchives.net/showPi ... id=1991796
http://www.rrpicturearchives.net/showPi ... id=1991794
http://www.rrpicturearchives.net/showPi ... id=1991797

Interesting to note the radiator assembly resembles a mid-production SD70M instead of the newer SD70 production run.
 #790101  by RickRackstop
 
The tier 2-12 cylinder engine requires a separate radiator for the split cooling system where there is a cooling system for the aftercoolers with its own temperature controls. Initial attempts to get separate control of after cooling was accomplished by hanging a radiator below the engine radiator and using a motor driven water pump. Sort of like having air conditioning condenser in front of the radiator in your car.

As for a saving fuel is concerned: a 3000 hp engine operating at 2000 hp is always more efficient than a 4000 hp operating at 2000 hp. But a 4000 hp will pull the load faster than 3000 hp. The problem with comparing efficiencies is that the comparison has to be made at the same load.
 #790711  by Super Seis
 
SD59M-2 is the EMD model number which reflects the fact that core units were SD-60's.

Alco 3000 and 3600 hp units had a seperate aftercooler radiator circuit some 40 + years ago-'tho the reason had nothing to do with emissions.
 #799877  by Leo_Ames
 
Super Seis wrote:SD59M-2 is the EMD model number which reflects the fact that core units were SD-60's.

Alco 3000 and 3600 hp units had a seperate aftercooler radiator circuit some 40 + years ago-'tho the reason had nothing to do with emissions.
I've seen you post this elsewhere and you're the only person I've seen confirm that it's an official EMD model number.

The only reason I have any doubt is why hasn't the rebuild source affected the earlier rebuild designations in this program but suddenly is now? Did a inside source tell you this or are you assuming it?

In the past, something like that GP9 demonstrator that was rebuilt to help introduce the program hasn't been designated any different then a GP40 rebuild (Both would be designated a GP22ECO). It's purely been based on cylinders of the engine going in so far (GP22ECO for a BB getting a 8 cylinder 2150hp engine, SD22ECO for a CC getting a 8 cylinder engine 2150hp engine, and SD32ECO for a CC getting a 12 cylinder 3150hp engine).

Hasn't mattered in the past so I don't see why it would now. And it being a official EMD desgination is also suspect by not having ECO in the model designation. It's been there in the past for all rebuilds and it seems doubtful EMD would suddenly drop it rather then make it obvious it's part of the Eco program to help promote this rebuild program. Especially now when it seems to be gaining some momentum with things like the Union Pacific order and Norfolk Southern demonstrating some SD22ECO's.

I really think it's a Union Pacific designation and believe EMD is going to stick with calling them a SD32ECO.
 #802404  by Super Seis
 
SD59M-2 is the model designation as determined by EMD Engineering. The ECO designation is a creation of Aftermarket Sales. Never the twain shall meet.

SS
 #828885  by Leo_Ames
 
Last month's issue of Trains (July) made it sound like it was a Union Pacific created designation.

If the two should never meet, why is the designation created by one used sometimes, and the designation from the second used at other times?

It doesn't add up.
 #851816  by Engineer Spike
 
It seems odd that UP is rebuilding the units with a reduced power rating. I wonder if it would have been possible to update them with a 4,000 HP 16-710, with the updated emissions equipment. That would make them augment the SD70M fleet.
 #898969  by Leo_Ames
 
Just for future referance, a recent issue of Trains (Either the current issue or last month's) confirmed that the official EMD designation for these units was SD32ECO and that SD59M-2 was an internal Union Pacific designation.
 #899540  by v8interceptor
 
Engineer Spike wrote:It seems odd that UP is rebuilding the units with a reduced power rating. I wonder if it would have been possible to update them with a 4,000 HP 16-710, with the updated emissions equipment. That would make them augment the SD70M fleet.
Not that odd considering that the whole impetus for this is fuel savings. The replacement for the SD60M's in "frontline" intermodal service is,of course, brand new SD70ACes and ESS44's so I doubt the railroad considers the lower HP rating on the rebuilds a major issue..
 #938488  by dash7
 
Its an SD65!!!!!!!, nah, just kidding!, I did notice the impact resistant fuel tank refit though, Love those flares.Nice