Questions about height, wieght transfer, & CofG

Discussion in 'GT4 Tuning' started by Areno, Sep 1, 2015.

  1. Areno

    Areno

    Messages:
    20
    Location:
    Lebanon
    These 2 cars are FR.

    Car A:

    Front height: Low
    Rear height: High
    CofG: ?
    Weight transfer during acceleration: ?

    Car B:
    Front height: High
    Rear height: Low
    CofG: ?
    Weight transfer during acceleration: ?
     
  2. Areno

    Areno

    Messages:
    20
    Location:
    Lebanon
    Anyone care to explain?
     
  3. BobK

    BobK Premium

    Messages:
    6,838
    I'm a little fuzzy on just what the question is.
     
  4. Matej

    Matej Premium

    Messages:
    1,930
    Location:
    Croatia
    @Areno You can download Scaff's Suspension and Brake tuning guide here. Download pdf file of the first guide and go to page 18 where Ride Height is explained, it should give you the answers you're looking for.

    I'm not really good at explaining engineering stuff (probably because I don't understand it completely either :p), but I can provide you an example of what I encountered back in my old days of playing with GT4. I still remember myself testing popular Audi RS4 '01 at Apricot Hill track.

    In normal circumstances, the car's CoG is positioned towards front end due to fact that majority of weight is planted on that side. By increasing front ride height a bit, I moved CoG more towards middle of the car, allowing the car to become more agile on turn-ins and stable during braking, but also with more understeer when applying throttle (because weight would easily move off the front tires, affecting their grip). Doing opposite (increasing rear ride height) would keep CoG by front axle, giving more grip on front during acceleration, but also make the car stiffer during sudden changes in direction.

    Hope that helps a bit. :)

    Edit: Grammar.
     
    Last edited: Sep 14, 2015
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  5. BobK

    BobK Premium

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    6,838
    You know, I'd completely forgotten about those guides!

    :tup:
     
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