How much black exhaust smoke?

[CONRAD]

Just wondering how much, if any, black smoke you guys get when taking off and boosting? I always let my engine warm up with a couple minutes of driving before pulling her reins a little.. and I've just had a service done a couple of weeks ago and a compression test for that matter, though I have noticed some black smoke (a decent amount, though not billowing) in my rear view mirror when I give it a bit of stick.

I'd imagine that naturally a whole bunch of gases would be being produced under those conditions, yet I'm not sure whether a little cloud of black smoke is the norm.

[EVL R33]

Most turbo'd cars will vent fuel smoke when coming on boost, your tune will also greatly determine the amount of smoke. Lack of a cat also adds to the issue My GTR spits out a fair bit of black smoke, but I'm running it slightly rich for safety...

Black smoke is good, white on the other hand is naaasty....

Cheers

Brett

[fane]

black means fuel which means its running on the rich side which is good me thinks? aslong as its not excessive...

[leech_]

yea black smoke = running rich as others have said as long as its not to much smoke its fine

white smoke = rings i think = bad???

blue smoke = i forget i think its when oil and water mix which = really bad