1) Of course it is possible to remap the VAG turbodiesel engine to produce significant power gains across the rev range without producing extra smoke.
2) Black smoke is part-burned fuel, evidence that the limits of the combustion process have been reached. This can be from overfuelling due to poor boost/fuel mapping, or from trying to deliver power at higher revs. It's generally undesirable, but it depends on your ultimate aim. Some are happy to push into the smoke region if it will deliver still more power.
I'm still quite happy with my standard 150BHp, and don't feel a need as yet to try for more. I'd need to budget for a replacement clutch and to up the brakes to 312mm as well. And to answer the unspoken question, I would want a map that did not produce more smoke. I'll upsize the disks when they need replacing in any case.
I intend to eliminate the smoke my engine currently produces by getting full-function VCDS and turning the EGS down to a minimum. I disconnected the EGS in my old TDI110, but the 150 will light up the CEL if I just disconnect the electrical connector from the N75 valve.
2) Black smoke is part-burned fuel, evidence that the limits of the combustion process have been reached. This can be from overfuelling due to poor boost/fuel mapping, or from trying to deliver power at higher revs. It's generally undesirable, but it depends on your ultimate aim. Some are happy to push into the smoke region if it will deliver still more power.
I'm still quite happy with my standard 150BHp, and don't feel a need as yet to try for more. I'd need to budget for a replacement clutch and to up the brakes to 312mm as well. And to answer the unspoken question, I would want a map that did not produce more smoke. I'll upsize the disks when they need replacing in any case.
I intend to eliminate the smoke my engine currently produces by getting full-function VCDS and turning the EGS down to a minimum. I disconnected the EGS in my old TDI110, but the 150 will light up the CEL if I just disconnect the electrical connector from the N75 valve.