Does the prime mover (Diesel) sound the same on a SD40-2 as a SD45T ?
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Similar, except that the 40 Series have 16-cylinder engines while the 45 Series have 20-cylinder engines. Both are turbocharged 645 diesels.
Originally Posted by mlavender480:
Similar, except that the 40 Series have 16-cylinder engines while the 45 Series have 20-cylinder engines. Both are turbocharged 645 diesels.
Well, it is a bit more complicated than that. As part of the "Dash 2" locomotive line, there was an increased effort to reduce noise emissions as well as increase fuel economy. Thus, the "Dash 2" units were equipped with "Q Series" quiet cooling fans and exhaust silencers.
So,,,,,,the previous issue 40/45 series units sounded "different", i.e. louder, than the 40-2/45-2 series units. So to answer the original poster's question, the answer depends on whether he REALLY means an "SD45T" model unit, or an SD45T-2 model unit?
Hot………I looked at my box it is a SD45T-2 I was thinking of. I have MTH SD40-2 and SD45t-2 and the tunnel motor sounds better to me, I was thinking of downloading a SD45t-2 sound into the SD40-2.
Clem
