Solved Creating variable supercharger, what do the properties mean?

Discussion in 'Mod Support' started by Spaceballs the Username, Jul 24, 2016.

  1. Spaceballs the Username

    Spaceballs the Username
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    I tried some googling but the answer I was looking for couldn't be found.

    Here is a supercharger:
    Code:
    "supercharger": {
            "gearRatio":1.5,
            "clutchEngageRPM":0,
            "pressureRatePSI":500,
            "pressurePSIPer1kRPM":2.51,
            "crankLossPer1kRPM":0.05,
            "type":"roots",
            "lobes":2,
            "twistedLobes":false,
            "boostController":[
                //throttle in %, factor
                [0,     0.2],
                [100,     1],
            ],
        },
    
    I have a couple of questions regarding the properties:
    1. What are the units of measurement for each property?
    2. What does each property mean?
    3. How does changing a property affect the performance of a supercharger?
     
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  2. SixSixSevenSeven

    SixSixSevenSeven
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    he made my thread for me, brilliant
     
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  3. Diamondback

    Diamondback
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    Vehicle Systems Engineering
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    gearRatio: the RPM ratio between the crankshaft and SC
    clutchEngageRPM: the SC starts to be engaged at this RPM, if set to zero it's always engaged
    clutchEngageRange: the range over which the clutch engages (from 0 to 1 basically), defaults to 20% of the engageRPM
    pressureRatePSI: how quickly the SC can build up pressure inside the intake, this has nothing to do with the maximum pressure, just with the time it takes to reach that pressure. Unit: PSI/s
    pressurePSIPer1kRPM: how much pressure the SC creates per 1k SC rpm (notice that this is only a theoretical value and gets heavily adjusted by the SC type in the actual simulation) Unit: PSI
    crankLossPer1kRPM: how much power the SC takes aways per 1k rpm, no really useful unit
    type: well the SC type...
    lobes: how many lobes the SC has in case it's a roots or screws type
    twistedLobes: roots type SCs can have slightly twistes lobes, making the a little bit more like screws
    boostController: how much boost you want to have at a given throttle amount, throttle goes from 0 to 100, boost value from 0 to 1

    As for performance impacts... You can google that ;) It's a bit too much theory to put it down here in a quick post.
     
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  4. jtreign9097

    jtreign9097
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    Is there a section in the wiki that explains this? i found this Thread which is very useful but i was curious if there is a page that explains this as you did.
     
  5. jtreign9097

    jtreign9097
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    Sorry for the bump but i was curious if Twin Vane or other rare types may work if there is any other types? i was hoping twin vane may work but if so will it need other properties such as the way roots does example Lobes,twistedlobes? unless twin vane doesn't use anything like screw or centrifugal does.. if Twin vane works what format should i write it as "twinvane" i was assuming or "twin vane"??
     
  6. Diamondback

    Diamondback
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    What is a "twin vane" supercharger? I can't seem to find anything about that on Google.
     
  7. adrian2013

    adrian2013
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    I'm almost 99% sure he's referring to twin screw superchargers
     
  8. jtreign9097

    jtreign9097
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    sorry for not explaining them well, but since i was doing more research i figured i bump this thread since there's more information and questions i have... there is vane supercharger's in real existence its similar to a centrifugal or sliding vane they say... they were used in racing in the 1950's used in the the triumph and other cars.... ---- http://hpwizard.com/vane-supercharger.html
    if vane could work that would be interesting for a different type of s/c.... there are things that work in this game that sometimes the dev's don't realize how advanced the game is and what its able to simulate.... only thing next i assume is electrical ignition systems with parameters for #of cylinders "misfire simulation"... battery voltage. working alternator... im sure this game isn't far off from that... lol.. off topic i know... but check into the vane super chargers i'm curious if this may work as others i thought didn't.. did work way back then. worked....
    --- Post updated ---
    Nope I'm talking about vane superchargers..... look at this here http://hpwizard.com/vane-supercharger.html
    --- Post updated ---
    Also on wiki there are mentions of another supercharger
    https://en.wikipedia.org/wiki/Supercharger,
      • Roots (in-game)
      • Lysholm twin-screw (in-game)
      • Sliding vane ?
      • Scroll-type supercharger, also known as the G-Lader ??
     
  9. Tuner from America

    Tuner from America
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    That's quite a bump there...
     
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  10. Diamondback

    Diamondback
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    Ok but twin vane? A rotor with two vanes? A dual SC setup? What are the characteristics of these? The type selection is there to simulate the different efficiency graphs vs rpm of the different types, like a centrifugal doesn't do much at low rpm etc.
     
  11. jtreign9097

    jtreign9097
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    Bumps are more fine then making new threads about the same thing, its on topic regarding characteristics of supercharger variants and how they would work in-game... basically informative.... saying "That's quite a bump is not a supercharger variant...it would cause fatal error.... and not help much in what were talking about... i would like your input on this since you were not originally part of the the conversation, your welcome to join its a free thread, but do you u have any to add on sliding vane or twin vane superchargers? my ears and eyes are open on this, any input is appreciative.
    --- Post updated ---
    i dont know if this is helpful but is there a way to simulate a sliding vane? 01a-Twin-Screw-vs-Roots-1200-600.jpg 01b-Twin-Screw-vs-Roots-1200-600.jpg SlidingVaneDrawing.jpg types-of-supercharger.png
     
  12. fufsgfen

    fufsgfen
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    This says there being four vanes with single rotor.

    http://www.mg-tabc.org/supercharger/Shorrock_ABC.pdf
    Pdf was on this page:
    http://www.mg-tabc.org/supercharger/index.htm

    What it does in practice, maybe same as more rotors in roots type? I have no idea, not even a slightest :D

    Update: I did read that sliding vane is less efficient than roots, especially on low pressure confitions or something like that, wikipedia had page named Powerplus:
    https://en.wikipedia.org/wiki/Powerplus_supercharger

    Still I have no idea what is practical difference and how much effect it would have, what would be power draw and pressure vs rpm curves etc.
     
  13. jtreign9097

    jtreign9097
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    yeah no idea how the power curve would be...or if its not a good supercharger at all... just wanna replicate it in game to see what happens... not all superchargers are for 300hp gains lol... these were used on motorcycles and triumphs in the 40's-50's and maybe even after that who knows... just learned about this
     
  14. fufsgfen

    fufsgfen
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    For me it looks like something Miramar could have with 7psi boost, there were some cars and boost pressures etc listed in pdf.
     
  15. jtreign9097

    jtreign9097
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    Yeah the Miramar would would benefit with this even with 3-5psi anything about 1psi is a step in right direction for a Miramar.. they roast tires with hardly any power as it is lol
     
  16. Tuner from America

    Tuner from America
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    Well you made a post on a thread that hasn't had activity since Oct, 29, 2017... that's almost a year now, and to add insult to injury why didn't you made that post when the thread was still " active " almost a year ago?
     
  17. torsion

    torsion
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    No need to continue discussing this. :( Please think twice before complaining about bumping.
     
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  18. jtreign9097

    jtreign9097
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    I dont listen to that kind of nonsense.... but he has no interest in the conversation and nothing to add to it anyway.. bump complainers are a specific breed of people nobody yet on earth has figured out yet. its not a bump its an active thread once again... it was on hiatus lol
     
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