The Official 2nd Gen RAM Forum OT thread
#5122
Dunno, been driving heavy/medium/light duty diesels since the early 80's and never had one smoke like that... admittedly never drove a Cummins.
#5124
True.. Most guys just want it to smoke and make it look fast.. When a truck dont pour black smoke like that is when you start to get worried about how fast that pig will be
#5125
Black smoke = too much fuel.
Grey smoke = too much air.
Mine pukes black if you stand on it in a higher gear before it's in the boost, but when the boost hits it burns completely clean. With mechanical injection there's not a ton one can do about it.
Believe it or not that guy isn't pushing an excessive amount of fuel. There are guys who can black out 4 lanes with their smoke... Pretty dumb IMO.
Grey smoke = too much air.
Mine pukes black if you stand on it in a higher gear before it's in the boost, but when the boost hits it burns completely clean. With mechanical injection there's not a ton one can do about it.
Believe it or not that guy isn't pushing an excessive amount of fuel. There are guys who can black out 4 lanes with their smoke... Pretty dumb IMO.
Last edited by Wombat Ranger; 12-23-2012 at 01:01 AM.
#5127
Yea, diesels are a completely different animals, and it is normal for some smoke to occur because air to fuel ratios are less of an exact science. They vary with load/rpm etc. With a V8 when you step on the throttle you open the butterflies in the throttle body and the computer compensates by adding the right amount of fuel. With a diesel when you step on the throttle you are just squirting more fuel into the combustion chambers. There are no butterflies to restrict air/let air in. It's either boosting or just sucking it in at atmospheric pressure when under no boost. So when you add more fuel you make more power, to a point. After that point you just make smoke, and with all that smoke comes heat. Too much heat can kill a diesel in a hurry. But as long as one watches their exhaust temps it doesn't hurt to have a bit of fun