ive supercharged my e36 328i with the rotrex charger. ive had it roling roaded and its a touch under 300bhp
i have noticed recently that its using a fair bit more fuel and its smelling like its running rich. also under full boost i get some black smoke. not enough for me to notice, been told by a mate whos sat behind trying to keep up
im thinking maybe the air mass is playing up... any other ideas or places to look?
any help would be really great
this is my setup