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Posts by Aqua225

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  • EPA Employees ‘Coming to Work in Tears’ Because of Trump Win

    01/26/2017 1:30:01 PM PST · 168 of 220
    Aqua225 to editor-surveyor

    Going to have to call you on this one.

    EFI is *much* more responsive than a carburetor to changing conditions ... even the conditions in the three miles from my house to the grocery store. Carbs are going to be non-optimal except in one narrow band, it’s just the nature of the beast.

    Additionally, points absolutely suck. The day GM brought out the HEI distributors was the day everyone said good bye to points as could do so.

    The proof is in the pudding: today’s high performance turbocharged engines would not stay together without EFI and computer controlled ignition. Even economy cars are running enough boost pressure and fuel to develop over 130hp/L (GM ectotech turbo, mazdaspeed 3, ecoboost 3 cylinder, examples abound).

    If you think those are just because of the EPA forcing someone’s hand, NTPA doesn’t ban EFI or computer controlled ignition for zero reason. Even on pump gas, the sky is the limit on specific output, just how much boost pressure you are willing to run through the engine. In engine powered sports where electronics are allowed, strict limits on boost pressure and rev limits abound (F1 even had boost limits in the 80’s, and rev limits that last few years of normally aspirated V8s).

    Finally, you can run a turbo/super and carb, but expect two things:

    (1) To not reach the optimal output of the engine across all operating conditions.
    (2) Probably slow (or in some cases, quick) engine damage on really hot days.

  • Trump, Clinton In Dead Heat As Race Hits Final Two-Week Stretch — IBD/TIPP Poll

    10/24/2016 8:16:01 PM PDT · 22 of 24
    Aqua225 to jackmercer

    Not in this age of legislating from the bench.

    The real power is in the Supreme Court, which a Clinton win will guarantee a stack that insures massive immigration (won’t be illegal anymore), and second amendment neutering, something the Left has dreamed about in wet dreams for years.

  • Trump, Clinton In Dead Heat As Race Hits Final Two-Week Stretch — IBD/TIPP Poll

    10/24/2016 8:12:27 PM PDT · 21 of 24
    Aqua225 to Innovative

    The tightening polls will actually make it easier for a fraudulent win. Just think, it was that .1% to carry Clinton to the victory!

    I’ve become very cynical about voting over the last 8 years.

    I am sure I will get some flame here for being a doubter, but the way I see it, a few extra hundred ballots here and there, and bam! You’re talking a real election.

    The polls will set the expectations of a close battle, and then those little unlawful nudges in all the right spots will pull out a close Clinton win.

    The only way out is if there is overwhelming Trump votes.

  • FBI to probe whether crashed Amtrak train was hit or shot at

    05/15/2015 6:40:43 PM PDT · 58 of 87
    Aqua225 to SpaceBar

    The wind shield of that locomotive is resistant only up to 22LR.

    Beyond that, it will fail.

  • Oh no! What does Anthony Weiner and the Amtrak Engineer Brandon Bostian have in Common?

    05/15/2015 12:44:11 PM PDT · 77 of 127
    Aqua225 to RitaOK

    No, but he could have went to the floor in gun fire or objects entering the glass (the windscreen is only bullet suppressant for 22LR according to some commentators), and hit the throttle on the way down. That’s the theory... there are some rather mysterious damage points on the wind shield of the locomotive.

    So I am waiting for the official story. And if I had to bet (and I don’t, but if I did...), my money would be on the engineer NOT being suicidal or a speed demon. Either disorientation or something external.

    trainorders.com has hidden his posts from site searches at this point, but he was a member over there, and commented often on safety.

    I also don’t consider him lawyering up a indicator of wrong doing. It’s just logical when dealing with law enforcement and regulatory agencies.

  • Oh no! What does Anthony Weiner and the Amtrak Engineer Brandon Bostian have in Common?

    05/15/2015 12:04:00 PM PDT · 56 of 127
    Aqua225 to WL-law

    I really think he has no memory, and I think the train was shot or had objects tossed at it. There is a discussion over on trainorders.com.

    Anyhow, I have no skin in the game, but I don’t think he should be judged so soon. Lots of unanswered questions.

    Awesome locomotive though, 70 to 106 in 45s :) What you can do with good engineering (3 phase traction motors, traction control software) and the entire North East grid to sink into your motors.

  • Amtrak Says It Was Just Months Away From Installing Safety System

    05/14/2015 8:30:03 PM PDT · 31 of 48
    Aqua225 to alloysteel

    As said on train orders, some of the worst disasters have been 3 brains in the locomotive, and a disaster still took place.

    No doubt the unions will use this though to attempt to boost their rolls. However, I think the days this will happen in *any* company are long gone.

    Maybe machines completely replacing men...

  • Local Amtrak conductor weighs in on derailment

    05/14/2015 7:40:36 PM PDT · 40 of 87
    Aqua225 to Conscience of a Conservative

    I agree. No matter guilt or innocence, I will lawyer up given the chance. Not worth the hassle of a government employee, sworn or not, pushing you into a corner.

    A blood thirsty lawyer at least can protect my rights from them.

    And for the people who think this comment means I hate cops: I don’t, but it is logic that if a cop is charging you, somewhere in his mind, he thinks you did it, and his operating premise is as such. A lawyer can protect you from that to some extent.

    I always get lawyers for tickets (the extent of my experience on the wrong side of the law :)), since a cop is going to write the maximum ticket level he can, it’s his job. A good lawyer can persuade a D.A. to knock off some charges.

  • NTSB: Amtrak train sped up before crash

    05/14/2015 7:14:45 PM PDT · 81 of 119
    Aqua225 to NetAddicted

    There is a lot of software on board a locomotive, including software that dictates what is written to the event recorder...

    An opening of the emergency brake valve could be a engineer’s only recourse, the only thing not managed by the silicon and copper on board.

    The motors on the Siemens Sprinter are 3 phase. They are NOT directly driven from line input. The power is rectified, then a very large set of inverters change the DC into 3 phase AC power for the traction motors.

    If there are cameras set in the cab of the engineer, then it will be interesting to see what he was doing. If it was going nuts attempting to stop a train, that seems like “Houston, we have a problem.”

  • China’s First Supercar Actually Doesn’t Look Terrible

    04/23/2015 5:42:17 AM PDT · 16 of 53
    Aqua225 to Paid_Russian_Troll

    0 to 60 in 5s? Hell cat will leave it in the dust & 124 mile range, will leave it sitting at a charger for most of its short life.

  • NY to LA. 26 Hours. 28 Minutes. (New transcontinental driving record.

    03/31/2015 9:08:25 PM PDT · 74 of 88
    Aqua225 to Paladin2

    I would disagree -— even Audi’s diesel LeMans car can’t tach very high. They only dominate due to the fuel energy density on diesel (less stops), and an advantage on manifold pressure (by rules, not by engineering -— the lemans rules state diesels can run higher displacement & manifold pressure since they can’t rev as high), because they just can’t reach into the esoteric RPM ranges a gasoline engine can run.

    Also, thermal efficiency of a spark ignition and a diesel engine are not different at the compact engine level, when the throttle on the spark engine is wide open.

    It’s at part load and low speed that diesel really shines. Not really advantageous in a race car :(

    I think advances in metals may change the high speed game, but I wonder by then how advanced direct injection gasoline will be (it is already doing wonders for thermal efficiency in part throttle operation, even on basic 87 octane gas). Many new GDI engines in consumer grade cars are rated for their peak power on 87, due to the ability to somewhat curtail pre-detonation with direct injection. This will only improve with computer modeling, which by its nature will advance quicker than material science.

    Anyway, that’s my prognostication :)

  • NY to LA. 26 Hours. 28 Minutes. (New transcontinental driving record.

    03/31/2015 8:48:21 PM PDT · 67 of 88
    Aqua225 to Paladin2

    You can’t reliably get the power density of the GTR’s block on alcohol, with a turbo diesel (and I love turbo diesels).

    Horsepower is a function of torque and rpm. Directly linear, in fact. To take on the combustion characteristics of a direct injection system, with the amount of torque needed to keep the diesel at a reasonable diesel RPM, would require a block and internal components that would make it impossible to fit into a compact luxury car.

    Diesels will continue to improve as material science improves, but I would say for a reliable diesel, the Ford, Cummins, and Duramax diesels are probably at the limit for *reliable* road performance (not dismissing the propane, nitrous, and super-chipped versions of these engines, but they won’t last their warranty period if actually used in the capacity they are tuned too without significant internal upgrades, if run at their peak power for most of their usefukl lives).

  • NY to LA. 26 Hours. 28 Minutes. (New transcontinental driving record.

    03/31/2015 8:40:25 PM PDT · 65 of 88
    Aqua225 to Jack Hydrazine

    Jack, it doesn’t matter about the gasoline energy content if you can’t use it. Alcohol’s higher octane allows higher boost pressures because less detonation. Which means even though gasoline has a higher BTU potential per gallon, you can’t put that to use with higher manifold air pressure -— instead, you’d get melted pistons, cracked blocks, etc.

    Not everything is the pure the BTU :) Most of the highest specific output engines have been ethanol or methanol powered, because you can’t easily beat alcohol’s detonation resistance.

    Leaded gas could work within that esoteric range (and still does for airplanes), but lead in our atmosphere is not a good idea, and I think we would have figured that out even without the EPA to force us in that direction.

  • Is It OK to Have Sex With a Robot?

    03/19/2015 8:26:24 AM PDT · 36 of 110
    Aqua225 to Gamecock

    Don’t worry, in 20 years after this becomes a real controversy, the PC will approve it across the board :)

  • Is It OK to Have Sex With a Robot?

    03/19/2015 8:14:42 AM PDT · 21 of 110
    Aqua225 to pepsionice

    “There are fields, Neo, endless fields where human beings are no longer born. We are grown.” Morpheus, The Matrix.

    For men, the machines will fulfill all desires. For women, the same. Men won’t have to deal with marrying the wrong woman, women will not have to deal with marrying an abusive man.

    The upside to this is that I suspect divorce law will drastically change to entice both men and women back to real marriage which can produce kids.

    Otherwise, we’ll still need kids, so we’ll grow them, and nanny bots will raise them! Or, we’ll cease reproducing as humans, and move our minds into the machines we make.

  • Glenn Beck Calls Ben Carson a 'Lunatic,' Says Presidential Career Is 'Over'

    03/10/2015 8:01:48 AM PDT · 14 of 60
    Aqua225 to SeekAndFind

    I have to pile in on this one: Glenn is the lunatic.

    That said, I do not care for Carson at this point. He wants to ban semi-automatics in cities. Which is just ridiculous.

    That said, I would still take him over Hillary, if it came down to it (it won’t).

  • Elio Motors Engine Prototype-First Start-Up to Build All-New Internal-Combustion Engine in 60 Years

    03/08/2015 7:45:55 PM PDT · 38 of 47
    Aqua225 to spokeshave

    That is not an efficient design. Reciprocating engines lose enough power to friction with the piston perpendicular to the crankshaft, this will be much worse!

  • Japanese LED traffic lights just too cool when snow falls

    02/23/2015 4:45:41 PM PST · 31 of 53
    Aqua225 to babygene

    Actually, the heat would be different in a pure DC system -— no loss to reactivity. However, it appears there is a direct relationship between DC current and ice formation, Google is your friend. But I did find this at the top of the search results which looked interesting:

    http://www.sciencedirect.com/science/article/pii/0165232X81900276

  • What Happens If Apple Starts Making Cars

    02/22/2015 1:05:31 AM PST · 35 of 62
    Aqua225 to leopardseal

    Not sure I would call the KATech opoc motor a advancement. It looks complex, and has many high mass parts in motion. This will drain efficiency, unfortunately. One of the major losses of energy in a internal combustion engine is the reciprocating mass and the loadings it produces on the bearings, and losses in the cylinder bore from friction of the piston traveling in the bore. This engine manages to increase all of those losses, by doubling the piston count, and tripling the losses for connectivity to the crankshaft (normal piston attachment via rod to crank, 2 rods for opposing piston and two crank attachment points -— all this just for one cylinder).

    Additionally, their ECT (electrically controlled turbocharger) seems bogus as well. Currently, this technology is desired by both OEMs and the aftermarket, however, the problem is with the power density in the brushless motors available to drive the turbocharger, vs. weight & size required to actually perform the job. For example, to generate boost pressure you need around 20 to 30hp electric motor drive for the compressor wheel to generate useable boost. Currently, that takes a fairly large electric motor to develop that kind of power (too much for a small package item like a turbocharger, even using rare earth magnets and high quality copper). Bigger turbos, like for diesel trucks, in OEM form, can supply 100hp from the power turbine to the compressor side of the turbo!

    Also, the site seems very shady. They claim improvements in efficiency and big claims for their ECT technology, but they post no numbers... which leads me to believe they have a questionable motive in their “innovations”. I suspect they are fleecing non-technical investors, kind of like EEStor did with their super capacitors.

    Finally, their generator as described is far too complex. Something about locking stators and rotors, and wear balancing between two opoc motors. This would completely defeat the simplicity of a normal three phase alternator.

    Of course this is probably all a moot point anyway... I suspect Apple will do electric only.

    But the piston engine itself has a lot of life left in it, but it won’t look much different from what we have now -— just more precise control over valve operation, fuel injection events (and ignition timing for non-compression ignition engines), and turbocharger sequencing.

  • Russian researchers expose NSA secret weapon: Program that enables America to spy on every computer

    02/17/2015 2:40:50 PM PST · 46 of 52
    Aqua225 to roamer_1

    However, what about vulnerabilities within the firmware itself? There could be malformed sata commands, magic bit sequences, etc. that could very well allow new code to be placed on the platters and hidden from the host OS. Or data to be ferreted away for later retrieval.

    So an immutable firmware would close one more door, but there are possibly so many more open.

    To me, there is nothing that can mitigate these sorts of risks, barring not using machines. Sometimes, even as a systems software engineer myself, a Frank Herbert Dune-esque future seems positively alluring.