Now I am owner of one Alfa GT 1.9 JTDm 16v (from 11/2007, 149600km, EDC16C39, see picture bellow)... My "good old" 147 1.9 JTD 8v (maybe you remember tuning activities about it) went to my sons
Our friend TribesMan gave me some information about tuning potentials of mentioned JTDm and EDC16C39. My additional questions are:
a) Which are issues about mechanical blocking of EGR? Is a necessary (or only suitable) to software disconnect of EGR?
b) Is it possible to mount simple freeflow intake pipe on the manifold (instead of original with butterfly) after the mechanical blocking and software disconnect of EGR?
c) What is better solution for low/mid/high range revs: BMC-CDA or original air filter?
d) Which are issues about replacement of first catalyst with downpipe for this euro4 engine?
e) Does replacement of second catalyst (with freeflow box) make some problem?
f) Does original exhaust endbox is appropriate solution for activation of tuning potential of JTDm?
g) which is limit boost for GT's GT1749v turbo?
h) is there enough space behind front bumper for FMIC?