Learn physics with extreme, body roll angle

[Parnelli Bone]

Yes, it's not fair . I only prove that you should go to different direction when tuning the damper.
In GT1 there is no damper multiplier, damper is written as predefined value. In GT2 there is damper multiplier, different car have different multiplier.
Damper in GT1 can go a lot softer and a lot stiffer than GT2. Based from feeling, damper 10 in GT2 feels like damper 3 in GT1, damper 1 in GT2 feels like damper 6 in GT1.
The sure thing is, you can never feels too soft or too stiff in GT2.

Okay, I TOTally agree with this. I always wondered why I could set my dampers on 10 in GT2 (or 1 for that matter) and not feel any difference in speed.

If you take a Dodge Copperhead from GT1, set dampers any higher than 4, and race it on High Speed Ring, it will bounce so much you will actually LOSE speed. There is a sim race in the British vs. American race at Trial Mountain in which a TVR Griffith driven by the ai obviously has dampers set too hard because the whole time it is shaking and falls far behind the rest of the drivers.

Now in GT2...you take the Copperhead (concept) and set its dampers too hard or too soft. It won't make any difference in speed, and makes a minor difference in handling when compared to GT1!

I think they did this because they wanted GT2 to be more accessible to the public. Perhaps too many people in GT1 couldn't understand why their cars were having problems. GT1 is generally a tougher game to tune than GT2...

 

[sucahyo]

I think they did this because they wanted GT2 to be more accessible to the public. Perhaps too many people in GT1 couldn't understand why their cars were having problems. GT1 is generally a tougher game to tune than GT2...

I think GT1 is tougher to tune than any other GT . And all of that comes from damper .........

 

[Parnelli Bone]

GT3 is the same way: you can set dampers very extremely and it doesn't make as much of a difference as it does in the first game! Why did they do this? After spending a couple hours with GT1 this weekend I actually felt myself getting hungry for it again.

 

[sucahyo]

GT3 is the same way: you can set dampers very extremely and it doesn't make as much of a difference as it does in the first game!

GT4 too !
I use 15 damper anytime I want to feel the GT1 damper wildness in GT2 .

 

[sucahyo]

Another 1000m experiment, curious with different feeling on spring rate behaviour, lower front = more oversteer?
NSX Type S Zero, stock with FC suspension = 1/1 1/1 damper, 0.0/0.0 camber, 0.00/0.00 toe, 7/7 stabilizer.

 spring  height   time
  2/2   135/135  24.554
  4/4   135/135  24.515
  6/6   135/135  24.493
  8/8   135/135  24.48
 10/10  135/135  24.479
 12/12  135/135  24.435
 14/14  135/135  24.444
 16/16  135/135  24.446
 18/18  135/135  24.477
 20/20  135/135  24.481
  2/2   135/135  24.554
  2/4   135/135  24.518
  2/6   135/135  24.595
  2/8   135/135  24.58
  2/10  135/135  24.576
  2/12  135/135  24.568
  2/14  135/135  24.554
  2/16  135/135  24.559
  2/18  135/135  24.547
  2/20  135/135  24.553
  2/2   135/135  24.554
  4/2   135/135  24.648
  6/2   135/135  24.641
  8/2   135/135  24.641
  10/2  135/135  24.645
  12/2  135/135  24.636
  14/2  135/135  24.639
  16/2  135/135  24.638
  18/2  135/135  24.643
  20/2  135/135  24.643
  2/12  135/135  24.523
  4/12  135/135  24.46
  6/12  135/135  24.508
  8/12  135/135  24.459
 10/12  135/135  24.455
 12/12  135/135  24.435
 14/12  135/135  24.453
 16/12  135/135  24.451
 18/12  135/135  24.454
 20/12  135/135  24.452
  2/2    89/89   24.644
  4/4    89/89   24.619
  6/6    89/89   24.597
  8/8    89/89   24.586
 10/10   89/89   24.575
 12/12   89/89   24.569
 14/14   89/89   24.544
 16/16   89/89   24.556
 18/18   89/89   24.557
 20/20   89/89   24.557
 12/12   89/135  24.095

Conclusion:

• spring rate have effect on grip. There is optimum grip value, which can be different on each car and can change on other setting change.
• handling behaviour is different when you use bellow optimum grip or above optimum grip.
• the most optimum grip is when you use the same value for both front and rear.
• because NSX is MR, high height have better time
• in NSX the optimum grip for 135/135 ride height is about 12/12. So using 4/12 or 20/12 will result in understeer, and 12/4 or 12/20 will result in oversteer.
• spring on non driven wheel have no effect on acceleration.
• lower front do not always result in more oversteer, if both value is bellow optimum grip it will result in understeer. If both value is above optimum grip it will result in more oversteer.

 

[Tornado]

Any suggestion for car that have high body roll?

The Plymouth Belvedere GTX suffers from ongodly amounts of body roll. Maybe you could try that.

 

[sucahyo]

The Plymouth Belvedere GTX suffers from ongodly amounts of body roll. Maybe you could try that.

Thanks . I wil try it.

 

[sucahyo]

Another test, spring rate effect on 1000m time.

           NSX S Zero Civic type 300zx turboSilvia R AeElan S2 '64 Elise 190 Trueno BZ-R
    2/2      24.554     28.879     25.701     26.454     32.325     26.429     28.686
    4/4      24.515     28.854     25.652     26.419     32.266     26.395     28.637
    6/6      24.493     28.839     25.621     26.388     32.223     26.362     28.628
    8/8      24.480     28.838     25.608     26.371     32.202     26.340     28.548
   10/10     24.479     28.824     25.596     26.358     32.180     26.328     28.571
   12/12     24.435     28.791     25.608     26.330     32.172     26.302     28.569
   14/14     24.444     28.809     25.573     26.347     32.161     26.305     28.594
   16/16     24.446     28.789     25.570     26.325     32.153     26.295     28.567
   18/18     24.477     28.790     25.553     26.327     32.149     26.289     28.552
   20/20     24.481     28.782     25.556     26.311     32.138     26.226     28.564