Well, I finally found out how to inspect the BIN file, and discovered the problem. A typo.
To fix it simply do this:
- Open the \RailWorks\Assets\G-TraX\PortlandTerminal\RailVehicles\Diesel\E7\Default\Simulation folder in windows explorer.
- Click on E7_DynamicBrakeEffortVsSpeed.dcsv
- Right-click and choose "Copy"
- Right-click and choose "Paste"
- You should now have a file named: E7_DynamicBrakeEffortVsSpeed - Copy.dcsv
- Right-click it and rename it F7A_DynamicBrakeEffortVsSpeed.dcsv

Enjoy your E7 with arguably overpowered Dynamic Brakes!!
