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Engine performance is now dependent on air density/temperature

Discussion in 'Chit Chat Room' started by Arbuzzz, May 19, 2016.

Page 1 of 5
  1. Arbuzzz

    Arbuzzz Hardcore Simmer

    Any explanation?

    Like as example the best Air Temp for engine performance is +20

    If Air Temp is +15 or +25 it decrease engine power for -5% as example...
     
    Arbuzzz, May 19, 2016
    #1

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  2. twizzR

    twizzR Racer

    As physics would have it, that is correct. Colder weather will have your engine run better.
     
    twizzR, May 19, 2016
    #2
    aphidgod likes this.
  3. Seria17hri11er

    Seria17hri11er Alien

    Higher Temperatures decrease Air Density, which reduces engine performance--as lower Air Density has less Oxygen which is needed to burn the fuel.

    Lower Temperatures do the opposite.

    Higher Altitudes also decrease Air Density. The question is, does AC model Altitude?
     
    Seria17hri11er, May 19, 2016
    #3
    colombianomd and mantasisg 2 like this.
  4. Arbuzzz

    Arbuzzz Hardcore Simmer

    Question is about exact numbers :) what is ideal air temp for best engine performance in Assetto Corsa?

    When engine start to lose performance?
     
    Arbuzzz, May 19, 2016
    #4
  5. twizzR

    twizzR Racer

    twizzR, May 19, 2016
    #5
  6. Seria17hri11er

    Seria17hri11er Alien

    That would be the coldest temperature possible; that's the maximum amount of Air Density/oxygen...
     
    Seria17hri11er, May 19, 2016
    #6
  7. aphidgod

    aphidgod Alien

    Colder the better, frankly. It's all about air density and colder = denser. Denser = more oxygen molecules for the same given volume. More oxygen molecules means more fuel can be burned, and more fuel burned is more power. :)

    IRL I can tell you that my WRX puts about 360hp to the wheels in the summer (~90F) and up to about 400 in the winter. (~20F)

    ninja'd by seria17hri11er
     
    aphidgod, May 19, 2016
    #7
    mantasisg 2, Nahkamarakatti and Seria17hri11er like this.
  8. Seria17hri11er

    Seria17hri11er Alien

    Samurai'd mutha f.... :p
     
    Seria17hri11er, May 19, 2016
    #8
    aphidgod and Ace Pumpkin like this.
  9. Arbuzzz

    Arbuzzz Hardcore Simmer

    Guys it is all kinda general answers :) need exact info about Assetto Corsa game
     
    Arbuzzz, May 19, 2016
    #9
  10. twizzR

    twizzR Racer

    As they say though, if you go as low as possible, it will be the best performance for the reasons stated. If you want some formula, as I said, maybe Aris wanna share. Maybe not.
     
    twizzR, May 19, 2016
    #10
  11. Rigel

    Rigel Alien

    DSC_0050.jpg

    Don't know how it's implemented in game, but this is the formula by the book. When confronting two temperatures, if T'a is lower than Ta, the engine produces more power.
     
    Rigel, May 19, 2016
    #11
    kazereal, AccAkut, Ace Pumpkin and 4 others like this.
  12. Arbuzzz

    Arbuzzz Hardcore Simmer

    Lol I just want to know what is the best Air Temp in the game for engine performance... is it 21, 22, 20, 19... or what :)
     
    Arbuzzz, May 19, 2016
    #12
    burrito likes this.
  13. WallyM

    WallyM Alien

    This is interesting too - the effect of air density on downforce:

    From http://www.f1technical.net/forum/viewtopic.php?t=12306

     
    WallyM, May 19, 2016
    #13
    mantasisg 2 and Seria17hri11er like this.
  14. WallyM

    WallyM Alien

    C'mon, using Rigel's equation, you can work it out yourself ;)
     
    WallyM, May 19, 2016
    #14
  15. Seria17hri11er

    Seria17hri11er Alien

    Ok, well most likely Aris' answer is going to be "as low temp as possible." As that's what it would be IRL. And that's what Kunos does. They model IRL... Are you new around here? Lol, kidding.
     
    Seria17hri11er, May 19, 2016
    #15
    er540 likes this.
  16. Arbuzzz

    Arbuzzz Hardcore Simmer

    Arbuzzz, May 19, 2016
    #16
  17. twizzR

    twizzR Racer

    twizzR, May 19, 2016
    #17
    St3fan, Auranapse, marlo0081 and 2 others like this.
  18. Octane

    Octane Simracer

    Hasn't the track temp always been affected? Hence grip affected? I guess its all a give and take as to how much HP you want for the grip to reach an optimum.
     
    Octane, May 20, 2016
    #18
  19. WallyM

    WallyM Alien

    I think track temp only influenced grip by its effect on tyre temps.
     
    WallyM, May 20, 2016
    #19
  20. twizzR

    twizzR Racer

    It would affect the flex of the tyre which in turn affects rolling resistance and in turn affects top speed?

    I wouldn't even call myself an armchair physics guy so someone else can probably ensure something like that.

    Like Aris

    Sent from my Nexus 5 using Tapatalk
     
    twizzR, May 20, 2016
    #20
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