Hopefully EMD relocates the turbo/exhaust stack to the rear of the unit like GE, and reconfigures their radiator similar to GE's to cut down problems in unventilated tunnels. Perhaps their tier 4 unit will be called a SD4x(insert hp here)xACe. As I see the 70 series designation no longer being used.
The advertising in the railroad press suggests the model SD70ACe-T4 for the four stroke.
The exhaust stack will be where the turbocharger is: it's much easier that way. But the test engine seems to have the turbocharger at the end of the engine away from the cab, like GE engines.
M636C
M636C SD60MAC9500 wrote the following post 1 hours ago: Hopefully EMD relocates the turbo/exhaust stack to the rear of the unit like GE, and reconfigures their radiator similar to GE's to cut down problems in unventilated tunnels. Perhaps their tier 4 unit will be called a SD4x(insert hp here)xACe. As I see the 70 series designation no longer being used. The advertising in the railroad press suggests the model SD70ACe-T4 for the four stroke. The exhaust stack will be where the turbocharger is: it's much easier that way. But the test engine seems to have the turbocharger at the end of the engine away from the cab, like GE engines. M636C
I know that the exhaust stack is on top of the turbo. That's why I worded it that way turbo/stack. If that's the case as you say the turbo's at the rear. That would make for a much quieter cab. EMD's always had noisy cabs due to the turbo being toward the front.
I made the comment about the turbo because that isn't the case in Australia where there are giant mufflers the full length of the engine above the engine, with the exhaust at the end away from the turbo. So GEs have the stack at the front and EMDs have a stack at the back. But you get a quiet cab in both cases, of course....
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