yeah i know its from over fueling and stuff, i just dont know if it burned black like that. because i plan on makeing my own bio most of the time and was just wondering in a smoke tune from dp tuner if it will still get all that black smoke flowing.
The engines I have seen run both fuels, the BD smoked a lot less under the same conditions - some would quote around 50% less. I guess if you changed the parameters - either tuning specifically for the BD, or dumping in more fuel, the smoke could be affected either + or -.
I think black smoke is very hard to come by on Bio, even as low as B20. I tried B20 on my farm tractor and the black smoke disappeared. All I get now is a faint white smoke. The thing I noticed the most on the tractor is all the junk it blew out of the exhaust pipe for the first tank.