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Author Topic: Is everyone's exhaust black/Sooty or just mine?  (Read 1976 times)

Offline 18Edition30

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Is everyone's exhaust black/Sooty or just mine?
« on: August 19, 2013, 09:37:24 pm »
As above I can clean my exhaust, make it sparkling.....

Then take it for a drive and its black with soot!

Car is Edition 30 Currently running APR Stage 1, VWRacing intake, milltek Cat Back and Pre Cat delete...just seems to be blacker than normal?

What's the reason for this?

How  do I stop this?

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Offline GrayMK5GTI

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Re: Is everyone's exhaust black/Sooty or just mine?
« Reply #1 on: August 19, 2013, 10:48:21 pm »
Some remaps run very rich - which is why you sometimes see clouds of black smoke when you put your foot down (and on dyno days)  :grin:

The richness soots up the tail pipes.
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Offline Rob.

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Re: Is everyone's exhaust black/Sooty or just mine?
« Reply #2 on: August 19, 2013, 11:17:00 pm »
I got mine lovely and shiny with a bit of Brasso a couple of weeks ago...it's definitely started to leave black deposits already, and mine is totally stock.
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Offline john a

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Re: Is everyone's exhaust black/Sooty or just mine?
« Reply #3 on: August 19, 2013, 11:19:05 pm »
Mine gets sooty fairly quickly but cleans up again with some Britemax and wire wool. Also running an APR map.
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Offline Frodo-anni

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Re: Is everyone's exhaust black/Sooty or just mine?
« Reply #4 on: August 19, 2013, 11:34:50 pm »
Mine is stock and does soot up after a few days. I have just got into the habit of giving them a quick wipe over, each night i put it in the garage, only takes two secs rather than leave it a few weeks and then it taking ages  :signLOL:
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Offline Matto

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Re: Is everyone's exhaust black/Sooty or just mine?
« Reply #5 on: August 20, 2013, 12:01:27 am »
Quote from: GrayMK5GTI on August 19, 2013, 10:48:21 pm
Some remaps run very rich - which is why you sometimes see clouds of black smoke when you put your foot down (and on dyno days)  :grin:

The richness soots up the tail pipes.

I think mine may be running a little rich. 0 to black in 1 second  :signLOL:

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Offline GrayMK5GTI

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Re: Is everyone's exhaust black/Sooty or just mine?
« Reply #6 on: August 20, 2013, 12:24:51 am »
I think yours may be because of the fuel your running it on Matto  :grin:
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Offline sub39h

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Re: Is everyone's exhaust black/Sooty or just mine?
« Reply #7 on: August 20, 2013, 12:33:44 am »
As the internal combustion engine is not 100% efficient (which would only produce CO2 and H20), surely any exhaust on any car would get sooty from the unburnt carbon in the exhaust!

In regards to how quickly they get sooty, well surely there are too many variables?
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Offline 18Edition30

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Re: Is everyone's exhaust black/Sooty or just mine?
« Reply #8 on: August 20, 2013, 09:14:52 pm »
So it's not just mine then!

I can get it sparkling no problem with Autosol. Just go for a drive and its black again! You would think its a derv!  Seems most of your guys engines let out abit of soot though? Is it excess fuel or oil burning??
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Offline GrayMK5GTI

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Re: Is everyone's exhaust black/Sooty or just mine?
« Reply #9 on: August 20, 2013, 09:42:27 pm »
My DPF fitted derv doesn't dirty the tail pipes at all   :grin:
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Offline Gene Hunt

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Re: Is everyone's exhaust black/Sooty or just mine?
« Reply #10 on: August 22, 2013, 01:07:10 pm »
Quote from: Frodo-anni on August 19, 2013, 11:34:50 pm
Mine is stock and does soot up after a few days. I have just got into the habit of giving them a quick wipe over, each night i put it in the garage, only takes two secs rather than leave it a few weeks and then it taking ages  :signLOL:
..........& me. :grin:
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