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Conspicuous Conservation, the ostentatious display of objects that mark a person as eco-friendly, has become popular over the recent decade, with example of wealthy people making a point of being seen driving a Prius, putting solar panes in silly places and even wearing shoes "suggesting" you worked on the BP oil spill cleanup.
On the opposite side of the coin we are starting to see some rather deplorable examples of Conspicuous Pollution, the most flagrant of which is called "Rollin Coal".
These kids, (they are almost always 20 something rural guys) will spend anywhere from $1,000 to $5,000 modifying their pickups for the sole purpose of belching huge clouds of black exhaust; adding smoke stacks and smoke switches (which either trick the engine into thinking it needs more fuel, or dump diesel fuel directly into the exhaust manifold).
This is not just a handful of guys. Elizabeth Kulze posted an article with links to “an entire subculture” on Facebook, Tumblr, and Instagram. “It’s just fun,” one coal roller says. “Just driving and blowing smoke and having a good time.”
(Score: 2) by frojack on Monday August 25 2014, @05:58PM
One of the simplest fixes is to make the oxygen sensor always show an excess of oxygen. (Literately a couple bucks to install). You'll continue get most of the horsepower your motor was capable of, but not much more unless you have a turbocharger. You still need to bypass the factory exhaust system with a temporary (or permanent) route to your big stacks because that much smoke will mess up your exhaust system very quickly.
More complex, and less damaging to the engine is exhaust manifold injection, mixed with a small quantity of air, and an exhaust system bypass valve. This version does not hurt horsepower output.
No, you are mistaken. I've always had this sig.
(Score: 1, Interesting) by Anonymous Coward on Monday August 25 2014, @08:48PM
Fundamentally, the oxygen sensors are variable resistors.
A switch, some wire, and a resistor and you can spoof the reading.
.
exhaust manifold injection
Go back 50 years and guys were doing something similar.
Instead of smoke, they wanted flames out the back.
Mount another ignition coil near the rear and put a spark plug in the tailpipe.
Afterburners!
-- gewg_