Black Soot & more!

[ZSHO]

I know this Topic has been discussed extensively in the past but was curious how much amount of Black soot you are seeing after a car wash,cleaning etc.

Here's mine after a weeks car wash! thoughts,opinions is greatly appreciated.  Z 

 

[FoMoCoSHO]

Virtually none....

 

[StealBlueSHO]

Honestly... I gave up cleaning the soot from my tail pipes.... I clean the outside of the tips to keep them sparkling...

Picture of my garage floor where I park my SHO..

Sent from my iPhone using Tapatalk

 

[ZSHO]

Virtually none....

Do you think adding that corn in the mix is playing a role?  Z

 

[FoMoCoSHO]

Virtually none....

Do you think adding that corn in the mix is playing a role?  Z

Absolutely

 

[sholxgt]

You mean the factory tips aren't black inside?

In all seriousness, I stopped washing the insides of mine also.  The factory tune is pig rich and dumps fuel with any poke of the throttle it seems.

One of my best friends has a white Focus ST.  He can't keep his back bumper clean because of the high amounts of soot.

I see nothing "eco" about these motors.  "Boost" yes, "eco" no.

 

[SHOdded]

Real question is, does the extra oxygenation prevent soot from being created during combustion, because as with common rail diesel systems, this is a real problem and an environmental/health hazard.

 

[ZSHO]

You mean the factory tips aren't black inside?

In all seriousness, I stopped washing the insides of mine also.  The factory tune is pig rich and dumps fuel with any poke of the throttle it seems.

One of my best friends has a white Focus ST.  He can't keep his back bumper clean because of the high amounts of soot.

I see nothing "eco" about these motors.  "Boost" yes, "eco" no.

True! But I think they stepped up there game a bit with the 15my due to there updated PCV System related to Emissions . Z

 

[sholxgt]

You mean the factory tips aren't black inside?

In all seriousness, I stopped washing the insides of mine also.  The factory tune is pig rich and dumps fuel with any poke of the throttle it seems.

One of my best friends has a white Focus ST.  He can't keep his back bumper clean because of the high amounts of soot.

I see nothing "eco" about these motors.  "Boost" yes, "eco" no.

True! But I think they stepped up there game a bit with the 15my due to there updated PCV System related to Emissions . Z

You have updated valve covers to go along with that system also, correct?

Maybe you're RX catch can system is also helping?  Seems that not ingesting oil could help as well?

 

[ZSHO]

@ Sholxgt I do have the updated PCV System related to the TSB,but  only the front clean side oil Separator is installed.
I think the black soot seems less eminent since having the Meth install. Z

 

[FoMoCoSHO]

You mean the factory tips aren't black inside?

In all seriousness, I stopped washing the insides of mine also.  The factory tune is pig rich and dumps fuel with any poke of the throttle it seems.

One of my best friends has a white Focus ST.  He can't keep his back bumper clean because of the high amounts of soot.

I see nothing "eco" about these motors.  "Boost" yes, "eco" no.

This problem isn't just with Ecoboost, it's seems to be an issue across the board with DI gas applications.

 

[FoMoCoSHO]

Real question is, does the extra oxygenation prevent soot from being created during combustion, because as with common rail diesel systems, this is a real problem and an environmental/health hazard.

Yes

https://www.ars.usda.gov/ARSUserFiles/np213/Teleseminars/Robert%20Stein%20(AVL)%203-29-11.pdf

"No sooting flames with E85
• Ethanol has a single boiling
point of 78.3°C, whereas
gasoline has a range up to
200°C. Thus E85 vaporizes
more readily after impingement
on the piston.
• Ethanol is oxygenated which
facilitates combustion of rich
regions without making soot."


https://www.afdc.energy.gov/vehicles/flexible_fuel_emissions.html

http://www.cleanairchoice.org/fuels/E85C02Report2004.PDF

http://www.iaeng.org/publication/WCE2010/WCE2010_pp1501-1504.pdf

 

[sholxgt]

You mean the factory tips aren't black inside?

In all seriousness, I stopped washing the insides of mine also.  The factory tune is pig rich and dumps fuel with any poke of the throttle it seems.

One of my best friends has a white Focus ST.  He can't keep his back bumper clean because of the high amounts of soot.

I see nothing "eco" about these motors.  "Boost" yes, "eco" no.

This problem isn't just with Ecoboost, it's seems to be an issue across the board with DI gas applications.

Good point!  I see a lot of NA Kia's with blackened rears as well.

I've owned two diesels, so I'm not opposed to soot.  Just seem strange on a gas motor.  If one of my EFI cars were belching this much black smoke, I would find a better tuner.

 

[SHOdded]

GDI = diesel common rail technology.  Same issues.

 

[r1crusher]

X20000 on not bothering to clean the inside of the tips.  I've contemplated simply cleaning the inside of them and then painting them with a high temp flat black so I don't have to see shiny spots in them anymore.

 

[SHOdded]

https://experts.umich.edu/en/publications/defeat-of-the-sootnox-trade-off-using-biodiesel-ethanol-in-a-mode

Defeat of the soot/NOx trade-off using biodiesel-ethanol in a moderate exhaust gas recirculation premixed low-temperature combustion mode
Haoyue Zhu, Stanislav V. Bohac, Zhen Huang, Dennis N. Assanis

Mechanical Engineering

Abstract
The soot/nitric oxides (NOx) trade-off of diesel, biodiesel, and biodiesel-ethanol in a moderate exhaust gas recirculation (EGR) premixed low temperature combustion (LTC) mode is investigated in this study. Compared to diesel, biodiesel demonstrates poorer spray behavior and shorter ignition delay, but its oxygen content results in less soot. Blending ethanol into biodiesel enhances spray behavior, prolongs ignition delay, and further increases fuel oxygen fraction, resulting in a larger reduction in soot. In the moderate EGR premixed low temperature combustion mode, an obvious soot/NOx trade-off is demonstrated with diesel fuel. The soot/NOx trade-off is improved by biodiesel fuel and defeated by the biodiesel-ethanol blend. Low soot, low NOx, and high combustion efficiency are achieved with the biodiesel-ethanol blend and proper EGR rate.

Original languageEnglish (US)
Article number091502
JournalJournal of Engineering for Gas Turbines and Power
Volume135
Issue number9
StatePublished - 2013

 

[92BlackGT]

my exhaust tips are as black as yours when using E10 91 tune. when I switch to my E20 tune the tips will actually mostly clean themselves after the first tank, i just have to scrub off the hard, stuck on stuff. after thats done the tips stay sparkly clean when using E20