My VT2 was running 2.2 bar max, the propane injection put it up to 2.4 which allards said was to high "if you want the turbo to last with the way you drive"

Which is why i was waiting for a remap to lower the boost and add more propane to get more power.2100rpm for the VT7 is higher then i would like really but its not much higher rpm then the OEM turbo and if i like i can always add no2 to kick in from 0-2100 rpm.If you want more grunt below 2000 rpm from a diesel i should think :
A. You are not driving it hard enough.
B. You need a bigger CC size engine.