John,
For comparison purposes, my 200 tdi.
Aftermarket fuel pin
Boost maximum 1.2 bar
Allisport big intercooler
Standard turbo
1.4 transfer gearing with 33" MT tyres
Standard genuine thermostat
Standard FIP timing
New timing belt done by myself so I know its spot on (as mentioned above, I always take the radiator out so I can see what I'm doing)
Normal running temp. 92-94°C
EGT @ steady 60-65mph, 400-500°C, 0.5 bar boost approx on the flat
Fuel economy at above, 26-27 mpg
Doesn't slow significantly for hills.
HTH
Mo