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Old Jul 29th, 2021, 14:10   #9
Familyman 90
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Last Online: Aug 13th, 2023 09:39
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Location: Warwickshire
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Quote:
Originally Posted by monkeh View Post
Cummins 6bt engines don't even use a catalyst or egr and yet can pass emissions with minimal nox easily?
You need to understand combustion physics. In very, very simplified terms, the bulk of modern engines run very lean to maximise fuel economy and reduce CO2 emissions. This is fine, but lean running has the unwanted side effect of increasing NOx emissions.

Not a problem really on any engine prior to roughly the late 80's when lean-burn started to become common place, and still not a problem on large capacity, low specific output motors like the Cummins coal burners, which simply don't knock out NOx in the same manner.

If an engine has an EGR its because it really does need it.

Quote:
Originally Posted by rudi dudi View Post
Never mention Egr dpf or any other emissions tweak on this forum.
You will only get the Emissions police and the Greta's of this world with poor little Johnies lungs etc etc.
Glad it's running better !!next Dpf delete😂😂
Que the backlash😂😂
Air pollution kills 40,000 people a year in the UK. This is roughly 7% of all annual deaths in the country, which shows how serious a matter it is. This is more than double the numbers killed road accidents, suicide, and illegal drug related deaths combined.

So aside from the very serious public health aspect, it is also illegal. Neither of these things are remotely funny.

You see if you find it so amusing after you've given CPR to a child who is dying from an asthma attack. That has lived with me every single day for 6 years, and it is not even remotely amusing or worthy of joshing.
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Last edited by Familyman 90; Jul 29th, 2021 at 14:35.
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