New EMD Engine - V-12 1100 J, 4,600 HP - Tier 4 Exhaust And Emission Standard Compliant

Just read something in the current Diesel Era magazine of which I was not aware.

EMD, in their new SD70ACe-T4 locomotives, meeting the new Tier-4 exhaust emission standards, has abandoned their long time 2-cycle power plant. They have been EMD's standard since the late 1930s. These engines have included the 567, 645, 710, etc. in favor of a new 4-cycle design.

Everybody else of significance uses 4-cycle power today. The new engine, known as the 12-1010J a V-12. At 1010 cubic inches per cylinder, it produces 4,600 HP of fuel efficient power. The new 1010J features a two-stage turbo system, consisting of three turbochargers, one for primary high pressure output, and two for secondary low pressure output.

This provides better power output over the engine's RPM range. Results in better fuel efficiency and lower emissions. Just what the EPA doctor ordered I guess! There is an EGR exhaust control system that also allows lower emissions.

I cannot imagine the thought of EMD units chugging up a hill like the GE FDL units did or do!

Folks, locomotives are no longer relatively simple machines!

Ken