Very good performance... but it came later!
Our OM617 now performs very well and is fast.
With a 1.4 T-case will go over 80 MPH on the flat and pulls away quicker than our 300TDI 110.
History and background:
I have talked to people who are getting a lot more power out of the OM617 with only adding an intercooler and slightly increasing boost and fuel.
When we first got this 110, it was powered by a 2.5 petrol (now gone).
It ran at 70 MPH and then would slow down to under 50.
Originally attributed it to the carb and after replacing with new had the same issue.
Shortly afterwards pulled the 2.5 petrol and later found that it had a small fuel filter on the RH side of the lowest point of the bulkhead near the frame.
Installed the OM617, but always thought it should have had more performance with the ntercooler and higher boost.
So swapped the T-case to a 1.2 and only used 5th gear on down hill runs.
Switched to a 1.4 T-case and it was better, but not where I thought it should be with the intercooler and increased boost.
This Tuesday the engine slowed on the interstate until it finally stopped with fuel starvation symptoms.
Got it into the shop and pulled the fuel line to the IP and only had a splash of fuel delivery.
Put it on the lift, disconnected the fuel feed from the tank and sourced the feed from a fresh
can of diesel. The fuel delivery was more than adequate, so all along there were fuel blockage issues within the tank.
Pulled the tank and replaced it with a new one and the fuel delivery is now very good.
Engine runs smoother and is very fast, both off the line and on the highway.
The difference is incredible compared to when some of you drove it.