General Car Discussion

Discussion in 'Automotive' started by HadACoolName, Mar 6, 2015.

  1. AdaMerlock

    AdaMerlock
    Expand Collapse

    Joined:
    Dec 23, 2016
    Messages:
    23
    Welp that didn’t work but thanks for the info
     
  2. aljowen

    aljowen
    Expand Collapse

    Joined:
    Oct 21, 2012
    Messages:
    1,677
    Does the car battery have any charge in it?
     
  3. SixSixSevenSeven

    SixSixSevenSeven
    Expand Collapse

    Joined:
    Sep 13, 2013
    Messages:
    6,958
    fob battery wont change anything, why would it, its the immobiliser in the car thats fucked and likely needs unlocking, resetting or reprogramming entirely
     
  4. RORCAT

    RORCAT
    Expand Collapse

    Joined:
    Aug 5, 2012
    Messages:
    76
    A truck I'm thinking about buying. Does this look like a good deal for $1500?
    1962 Chevrolet C10 SWB Stepside
    230 or 235 I6, not sure which one, runs, needs brakes, tires and rubbers, 4 in the floor bulldog transmission.

    20180624_170906.jpg 20180624_171259.jpg 20180624_171001.jpg 20180624_171343.jpg
     
  5. rottenfitzy

    rottenfitzy
    Expand Collapse

    Joined:
    Mar 7, 2015
    Messages:
    680
    • Agree Agree x 2
  6. MrAngry

    MrAngry
    Expand Collapse

    Joined:
    Sep 5, 2013
    Messages:
    612
    This is going to be good lol.
     
    • Agree Agree x 1
  7. General S'mores

    General S'mores
    Expand Collapse

    Joined:
    Sep 15, 2013
    Messages:
    4,484

    Looks like we're getting a Opel GT crossover...
     
  8. MrAnnoyingDude

    MrAnnoyingDude
    Expand Collapse

    Joined:
    May 4, 2016
    Messages:
    2,022
    Doesn't FCA have the GTX trademark?
     
  9. General S'mores

    General S'mores
    Expand Collapse

    Joined:
    Sep 15, 2013
    Messages:
    4,484
    Are you referring to the Plymouth GTX? I'm not sure if they still own the trademark

    Even by that, the concept car is referred as the Opel/Vauxhall GT X Experimental (model names ending with the letter X is nothing new for Opel).
     
  10. MrAnnoyingDude

    MrAnnoyingDude
    Expand Collapse

    Joined:
    May 4, 2016
    Messages:
    2,022
    It still has the sequence of G, T and X.
     
  11. General S'mores

    General S'mores
    Expand Collapse

    Joined:
    Sep 15, 2013
    Messages:
    4,484
    There are products with that same name, like for example: NVIDIA's top tier video cards
     
  12. JBatic

    JBatic
    Expand Collapse

    Joined:
    Jan 22, 2015
    Messages:
    1,048
    • Agree Agree x 1
  13. SixSixSevenSeven

    SixSixSevenSeven
    Expand Collapse

    Joined:
    Sep 13, 2013
    Messages:
    6,958
    Go look up the trademark registry, many many many companies own that trademark
     
  14. MrAnnoyingDude

    MrAnnoyingDude
    Expand Collapse

    Joined:
    May 4, 2016
    Messages:
    2,022
    In US patent law a trademark only applies to a specific area (here, automobiles).
     
    • Agree Agree x 1
  15. SixSixSevenSeven

    SixSixSevenSeven
    Expand Collapse

    Joined:
    Sep 13, 2013
    Messages:
    6,958
    Just as well Opel aren't in the US then isn't it ;) or using a GTX trademark commercially. Instead using GT X internally.
    Internal usage is not use for trade and therefore not violation of trademark (a fact proven in courts before)
     
    • Agree Agree x 1
  16. vmlinuz

    vmlinuz
    Expand Collapse

    Joined:
    Mar 2, 2014
    Messages:
    2,409
    UPDATE: misunderstood physics and shitposted accordingly. Disregard.

    Time to stir up some controversy:

    Crash tests are total bullshit. Let's start with a NHTSA crash test:



    Here, a Subaru Forester crashes into a solid barrier head-on at 35 MPH. While this is important in testing seatbelts, airbags and other safety technology, it is unrealistic for two reasons. One, I will get to later. The other is that in a real-world accident, you are unlikely to strike a barrier, or even another vehicle, head-on. There will almost never be a 100% overlap.

    Next up is the IIHS, who performs overlap tests in a similar fashion to NCAP programs around the world:



    Pictured is the small-overlap test. In this case, a car is launched into a deformable barrier at 40 MPH such that only part of the car strikes it. This is somewhat more realistic, in that the "strike zone" is not the entire front of the car.

    Here are the results of a BeamNG IIHS-style crash test of the Grand Marshal, a surprisingly safe vehicle - or so you would think.

    screenshot_00106.png screenshot_00105.png

    At peak deformation, the front crumple zone does its job, absorbing much of the shock before it reaches the passenger compartment. Minor passenger compartment deformation is visible; however, the steering wheel has not shifted and the door has remained shut, meaning the airbags would function as intended to keep the occupant safe. This vehicle, when new, would likely receive four to five stars from the IIHS, and potentially even earn an IIHS Top Safety Pick if equipped with side curtain airbags.

    However, the forces involved here are only equivalent (roughly) to two unladen cars striking each other at 20 MPH. An accident like this would likely be easily avoidable, assuming both drivers involved were sober and paying attention. What about higher-speed collisions on the highway? Imagine two cars travelling towards one another, each one moving at 55 MPH. The forces involved would be as though the IIHS had performed a crash test at 110 MPH! To my knowledge, no such test exists, so I will perform a similar one in BeamNG, colliding two Grand Marshals at highway speed:

    screenshot_00112.png screenshot_00110.png

    In both cars, the crumple zone has not successfully managed the impact. Significant passenger compartment deformation is visible, and the steering wheel has shifted forward, increasing the risk of injury to the abdomen and preventing the airbag from doing its job properly.
     
    #13156 vmlinuz, Aug 28, 2018
    Last edited: Aug 29, 2018
    • Informative Informative x 1
  17. General S'mores

    General S'mores
    Expand Collapse

    Joined:
    Sep 15, 2013
    Messages:
    4,484
    You're more likely to get hit at a angle, the rear or by the side rather than the front.
     
  18. aljowen

    aljowen
    Expand Collapse

    Joined:
    Oct 21, 2012
    Messages:
    1,677
    Partial overlap crashes are in fact very common. This is why they test them. They didn't decide how to crash test vehicles based on what would be fun to do, they base the tests around common types of accidents.

    Where your physics gets super dubious, is where you equate hitting a wall at 40mph, to two cars hitting each other at 20mph. That is wrong.

    When two cars both travelling at 20mph crash, they both decelerate from 20mph to 0 mph. Therefore the occupants of both vehicles both feel a 20mph deceleration, this is the same deceleration they would experienced if they hit anything else, including a wall at 20mph. This deceleration also occurs over the same amount of time, since you have two crumple zones absorbing 20mph each. Meaning the resulting forces would also be the same.

    So a 40mph partial overlap crash test, is equivalent to two cars having a head on crash, both travelling at 40mph.

    EDIT:
    Also, just to add some extra detail, when analysing a crash test, they take into account whether a car is likely to hold up to a larger impact. So when a vehicle's structure shows that it will not hold up to a larger impact than the one they did, they will specifically mention it in their written report, and deduct marks appropriately. Even if a cabin appears survivable after a 40mph impact, if it has crumpled, chances are it may not be survivable at a 50mph impact and so on.
     
    #13158 aljowen, Aug 28, 2018
    Last edited: Aug 28, 2018
    • Agree Agree x 4
    • Like Like x 1
  19. SixSixSevenSeven

    SixSixSevenSeven
    Expand Collapse

    Joined:
    Sep 13, 2013
    Messages:
    6,958
    You might want to take a high school physics class, your maths is wrong
     
    • Agree Agree x 3
    • Like Like x 1
  20. HadACoolName

    HadACoolName
    Expand Collapse

    Joined:
    Aug 3, 2013
    Messages:
    1,931
    Why do you never see rear crash tests.

    Surely that has to be a thing
     
    • Agree Agree x 1
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice