"Diesel fuel contains much more carbon than petrol and when its burnt this carbon is what is produced - there is nothing that can be done about this."
Sorry I cannot agree with this statement! The black smoke from diesels IS from overfuelling! It is literally unburnt fuel! The newer cars that now conform to the new Euro IV emmissions and hence give off less smoke, have far better fuel management systems (more sophisticated ECUs and more sensors).
Also dan said;
"Also speaking to the my superchip agent who has an a3 2.0 tdi himself which he has remapped, stated that his gives off no more smoke than when his car was on the standard tune. When I aslo wrote to the head office of superchips, they replied and guarnteed that there would be no more additional smoke."
Well folks I agree with this entirely! As you will have most likely read from the other thread that gives my experience with the remap, I watched the complete procedure on the rolling road with the before and after remapping. Superchips gave me a set of ear defenders to wear because of the noise and I particularly watched for smoke. Remember I used to have a tuning box on a 110 Bhp Golf GT Tdi and it smoked really heavily. I was therefore NOT going to be satisfied if the remap smoked. In fact I would have had my money back there and then if it has smoked anymore than standard(Superchips new this). Anyway there was very little smoke after the remap. One thing that has to be appreciated, is that with the car on the rolling road there is no forward speed to blow away any smoke, it just hangs around the back of the vehicle below the bumper, so you can see what is produced. Anyway, again I must say there was very little. I do not see any on the open road!
If any of you are serious about the Superchips remap, and want to see it in the real driving world, you are at liberty to call me and visit and see for yourself.