Yes, dynamometer testing is standard around here.
I despise those people more then anything. Their normally ****oles on the road and have a almost total disregard of other people's health.
One almost ran me off the freeway in Houston, the other day, after I past him. Apparently he didn't like the idea of a Subaru out running him.
He probably just didn't like the idea of Subaru in general.
LOL. Reading the "coal roller" comments with a chuckle. My truck will do it if I set it to a ridiculous setting on the add on computer, but done *right* and not for the purpose of acting a certain stereotype, it adds huge amounts of horsepower and torque and does NOT blow additional smoke. Diesels smoke when they're fed too much fuel for the available air.
My truck being a 2001, long before the computers were as smart as the current ones, adding a larger air intake, a significantly upgraded turbo, and a four inch exhaust system, along WITH the computer upgrade, along with slightly upsized injectors, results in a maximum upgrade of almost 200 horsepower if set in the "I would like to shorten the lifespan of the rest of my drivetrain" mode. In towing mode (much more sedate), it's about an 85 HP increase and a reasonable torque increase on the low end.
It'll smoke at low RPM and high throttle position until the circa 1999 computer system figures out the engine is being overfueled and spins up the turbo harder. There's also the standard problem of turbo lag on a bigger turbo, often "fixed" by going to a double or triple turbo setup. Give it enough air, it won't smoke, but it'll go like a bat outta hell unloaded, and pull mountainous terrain with the largest trailer weight the vehicle is rated to pull, with only EGT temp as the limiting factor.
So under hard acceleration with the upsized injectors even in "stock" mode, mine will "puff" a bit and then the turbo catches up and it scoots like a little rocket ship that weighs 7400 lbs with the normal load and hitch in the bed. I modulate the throttle slower off of the line most of the time, but if I need to get over or something, bummer... It's going to puff for a sec. I can also help it not do that by keeping the RPM wrapped up, but that doesn't help right off the line in 2nd.
The "kids" and "kids at heart" will set them up to be underfueled in certain configurations but very few run the like that 100% of the time. They're just goofing off. The "OMGBBQ!" reactions of some here who haven't pushed for electronic injection approvals from FAA and mogas tanks at their home airports, are pretty petty when compared to the so-called "waste" of fuel that most GA flights are. (Oh goodie. You're night current again and haven't flown anywhere at night in ten years. LOL!)
As far as Lesbaru's go, I also own one of those. It gets horrendous fuel mileage for a 4 banger little car. Driven right, the 7400 lb diesel dually matches it's fuel mileage, and I track it. 19.7 is this year's average minus trips towing the big trailer, after all is said and done, and the Lesbaru gets a solid 20. 21 on a lucky tank.
I'd put a twin turbo on the Cummins to get rid of the puffs but it's not worth the money spent. Plus I have one of the nefarious "light cases" (similar to the same problem from Continental in some models of aircraft engine) that can't handle more than about 30 lbs of turbo boost or it'll crack the block near a lower bolt.
Here's a little secret. The ONLY time I "roll coal" on purpose in my diesel is when someone egregiously tailgates. Do that to me and I WILL punch the computer up to "stupid fuel" mode and drop it into 6th on the manual transmission and floor it. It'll guaranteed get you off my ass while you're poking at your cell phone while driving. I've also been known to judiciously use the rather loud horn on the truck to get the attention of some idiot poking at their phone in the lane next to me on the highway... It's hard to maintain a phone call with a Dodge horn "stuck on" right next to your car.
A train whistle and air tank for same, would be more fun. Always reserved for the morons who can't put their phone down...
Anyway, my truck would easily pass our opacity standards in stock mode, if I lived in the emissions district or cared, neither of which is true.
I've seen what the morons at Colorado emissions locations do to stick shifts on their dynos and I wouldn't own a stick inside the emissions district unless I had budgeted to replace the transmission or driveshaft soon thereafter a test. They slam shift and treat the vehicles under test like complete crap. Total misunderstanding of how syncros work or what "matching revs" means. Total ass-hats.
Could I buy a fancy new chicken pee diesel? Maybe. Mine with mods AND a complete head rebuild last year is still one THIRD the cost of a new one. And no pee tank to fill to pretend like the thing is going to be "clean" towing 12,500 lbs of trailer and getting 9 MPG in the flatland and 4 MPG in the mountains.
Plus it's always entertaining to note that those always whining the loudest about the minority running "dirty" diesels are always the first in line for government handouts to afford their cleaner vehicles, and also seem to never mind the exemptions for city busses, construction equipment, fire trucks, ambulances, snow plows.
You name it... If there's a government vehicle that would fall under the diesel rules, they'll make an exemption for it. Those spew way more crap than the "teenagers" and "teenager mentality" folks who drive a modified pickup truck every day. Let's not even throw in the government gas vehicles that start and never get shut off until the 12 hour shift is over, even if eight of it, is spent parked beside a road with the LED lights going (no need for the huge alternators, idle up systems to keep them from overheating, or any of that stuff anymore, and yet... They still have all that stuff...) instead of simply putting in two batteries and an isolator for starting.
Gotta keep the laptop in the center console that they type on (illegally) while driving, cool, while you're out directing traffic. LOL... Whatever. Shut it off or get the OS set up right for sleep mode. Sheesh. And put an "out of park" interlock on the thing that disables the keyboard. Because you know, you're all about "safety rules" ... Right. Haha.