The Turbines act weird when using ExtraCells fluid export buses on them, It looks as if for some reason almost no Fluid runs into them resulting in extremely slow running Turbines. Import buses work fine without any problem.

Also: They eat way too less steam. I have a turbine here that takes less than 280 mb/t that should actually take about 1400 mb/t regarding to a spreadsheet. 960 RPM with 56 blades and 6 enderium coils.
Or the reactor produces way too much steam and his GUI shows a wrong number.

/edit2: That was fixed after restarting the server o.O Now it is eating water like crazy.

This is an ExtraCells problem.

I have another issue now regarding that steam input. I feed steam into my turbines from a dynamic liquid tank that is being filled by extra cells. I use 5 Fluiducts to pump the steam into the turbine that takes 1390 mB/t. That worked perfectly fine for 3 days but now 3 of my 4 identically built Turbines only run at 891 RPM while the 4th runs at 963. All 4 were at 963 yesterday.
Seems as if running the server for a longer time can cause turbines to make something weird it seems.