Way to much fuel. Yah black smoke is cool but you don’t have enough air in the motor to burn all of it you are wasting fuel and damaging your motor with soot.
The stoichiometric ratio is the perfect ideal fuel ratio where the chemical mixing proportion is correct. When burned all fuel and air is consumed without any excess left over.
( Google -Stoichiometric combustion )
P.S. Black smoke is Unburned fuel and if you are going to use big words you should know the definition.
Then tell me why adding more fuel=more power? Excess fuel exiting the tailpipe does not absolutely mean that the combustion won’t benefit from additional fuel. I would bet diesels start smoking before they even hit stoichiometric (thanks for the spelling) which btw, is right around 15:1 just like gasoline engines. The fact of the matter is, is that adding more fuel makes more power, and even if it is rich, then diesels simply make better torque at mixtures richer than 15:1.
When a diesel is at its (SC) ratio it does not smoke. unlike a car that is made to stay at it’s (SC) ratio under all conditions, diesels can run below their (SC) ratio which helps power by fueling the turbine in the turbo charger which increases boost (airflow) to the motor.
Yes diesels do make power at (SC) ratios richer than 15:1 I think the Air/ fuel Ratio on my stock dodge 24valve ranges between 12:1 (full throttle) to 50:1 (idle). My argument is that this guy is making so much smoke his turbo is choked out. To make the most power you want a puff of black smoke that goes to brown as soon as the turbo spools up.
Wrong! When a diesel is at 14.7:1 it DOES smoke. You have to consider the fact that not all of the fuel in the combustion can be totally utilized, so if you want use up all of the air available, you have to add extra fuel. This is why they begin to smoke while they are still lean, and why at a perfect ratio, they smoke.
The fact that diesels run very very lean has NOTHING to do with turbos. It has everything to do with the fact that diesel’s are not throttled, and consume as much air as the cylinders can pull in. The fuel added=energy produced, which is why at idle, the engine only has to overcome it’s own friction, requiring only a small amount of fuel, hence 50:1 or more.
Listen dude am just argueing your statement.
no such thing. diesels have a stoichiometric (sp?) ratio just? like gas cars do, and when they are at it, they are pitching pure black smoke.
I under stand that not all fuel is not utilized in the combustion process even at the optimum SC ratio I am saying to get blacksmoke you have to go way below the optimum SC ratio and at some point the fuel starts taking up space that air could be occupying causing inefficiency.
I
Look I was a diesel truck and equipment mechanic for over a year. I could tell you in detail how a diesel engine works because I have taken them apart and put them back together.
Other than that I think you are arguing just for the sake of argument so I am done arguing with you.
Knowing how to work on an engine and understanding the engineering behind the engine are 2 completely different things. Do your research, a diesel that is consuming all of its available oxygen is going to be dumping smoke. In a perfect world, with perfect atomization, and a perfect combustion chamber, then yes, it would not smoke. This is the real world though, and diesels smoke at 15:1 (SC). For the sake of this video, this guy is almost surely running nitrous, and needs to have the extra fuel
I never said they need to smoke to make good power. The fact that the truck is so light contributes to the lack of load, as well as loading the engine at the line to build boost before launch. About 8 years ago I new a guy who had the fastest drag cummins out there, first in the 10s. Twin compound turbos pushing 100+psi, 200 shot nitrous, propane, methenol, it was pretty impressive. The injectors were so large it smoked at idle, spitting little rain drops of soot out the tailpipe.
shits weak
ummm how stupid.. did anyone realize the backfires at 1:08 – 1:19.. why would you continute to full throttle dyno it.. sooo stupid
i agree, screw the green party!
first off the little popping backfires you hear is nitrous backfiring the huge bang is the turbo exploding.
Just Created a personal ring tone from 0:04 to 0:45 of this video on Tube 2 Tone[dt]com.
wut a waste of a turbo son
?????? ???????? )
sounds like a dam big rig
I call it stupid and a waste of good stuff
Love how it sounds between shifting threw the gears, sounds like a big rig.
Way to much fuel. Yah black smoke is cool but you don’t have enough air in the motor to burn all of it you are wasting fuel and damaging your motor with soot.
no such thing. diesels have a stoichiometric (sp?) ratio just like gas cars do, and when they are at it, they are pitching pure black smoke.
too much fuel=high egts= turbo shoots out of exhaust
The stoichiometric ratio is the perfect ideal fuel ratio where the chemical mixing proportion is correct. When burned all fuel and air is consumed without any excess left over.
( Google -Stoichiometric combustion )
P.S. Black smoke is Unburned fuel and if you are going to use big words you should know the definition.
Then tell me why adding more fuel=more power? Excess fuel exiting the tailpipe does not absolutely mean that the combustion won’t benefit from additional fuel. I would bet diesels start smoking before they even hit stoichiometric (thanks for the spelling) which btw, is right around 15:1 just like gasoline engines. The fact of the matter is, is that adding more fuel makes more power, and even if it is rich, then diesels simply make better torque at mixtures richer than 15:1.
When a diesel is at its (SC) ratio it does not smoke. unlike a car that is made to stay at it’s (SC) ratio under all conditions, diesels can run below their (SC) ratio which helps power by fueling the turbine in the turbo charger which increases boost (airflow) to the motor.
Yes diesels do make power at (SC) ratios richer than 15:1 I think the Air/ fuel Ratio on my stock dodge 24valve ranges between 12:1 (full throttle) to 50:1 (idle). My argument is that this guy is making so much smoke his turbo is choked out. To make the most power you want a puff of black smoke that goes to brown as soon as the turbo spools up.
i might be able to live forever if all i breathed was soot!
Wrong! When a diesel is at 14.7:1 it DOES smoke. You have to consider the fact that not all of the fuel in the combustion can be totally utilized, so if you want use up all of the air available, you have to add extra fuel. This is why they begin to smoke while they are still lean, and why at a perfect ratio, they smoke.
The fact that diesels run very very lean has NOTHING to do with turbos. It has everything to do with the fact that diesel’s are not throttled, and consume as much air as the cylinders can pull in. The fuel added=energy produced, which is why at idle, the engine only has to overcome it’s own friction, requiring only a small amount of fuel, hence 50:1 or more.
Listen dude am just argueing your statement.
no such thing. diesels have a stoichiometric (sp?) ratio just? like gas cars do, and when they are at it, they are pitching pure black smoke.
I under stand that not all fuel is not utilized in the combustion process even at the optimum SC ratio I am saying to get blacksmoke you have to go way below the optimum SC ratio and at some point the fuel starts taking up space that air could be occupying causing inefficiency.
I
Look I was a diesel truck and equipment mechanic for over a year. I could tell you in detail how a diesel engine works because I have taken them apart and put them back together.
Other than that I think you are arguing just for the sake of argument so I am done arguing with you.
Knowing how to work on an engine and understanding the engineering behind the engine are 2 completely different things. Do your research, a diesel that is consuming all of its available oxygen is going to be dumping smoke. In a perfect world, with perfect atomization, and a perfect combustion chamber, then yes, it would not smoke. This is the real world though, and diesels smoke at 15:1 (SC). For the sake of this video, this guy is almost surely running nitrous, and needs to have the extra fuel
Longway2fall if you think diesels have to make Blacksmoke to make alot of power checkout this video.
Banks Sidewinder S-10: first diesel drag truck in 7’s
I never said they need to smoke to make good power. The fact that the truck is so light contributes to the lack of load, as well as loading the engine at the line to build boost before launch. About 8 years ago I new a guy who had the fastest drag cummins out there, first in the 10s. Twin compound turbos pushing 100+psi, 200 shot nitrous, propane, methenol, it was pretty impressive. The injectors were so large it smoked at idle, spitting little rain drops of soot out the tailpipe.