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(DATA REPLACEMENT) RUF CTR-1 Yellowbird Improved Physics by Arch 1.51

Ruf faszination.

  1. Błażej Wianecki
    Błażej Wianecki
    5/5,
    Version: 1.51
    I’ve finally started to enjoy the car after last update. First classic 911 in ac that seems convincing to me. Also sometimes I really like to run in low boost setting. Am I being weird?
    1. Kyuubeey
      Author's Response
      Hey,

      I too largely feel the same.
      Low boost is fine. Can someone model an old Carrera? :P
  2. judiego78
    judiego78
    5/5,
    Version: 1.51
  3. judiego78
    judiego78
    4/5,
    Version: 1.4
    Maybe it is too soft?, when you brake the front of the car hits the road.
    1. Kyuubeey
      Author's Response
      Hey,

      The tbars are correct. But there's no guarantee the anti-dive is correct (Not so much on the real car), nor is there a guarantee the Kunos bumper is on the right height. I'm still investigating. Best Motoring's production version CTR1 seems to have less braking dive, so perhaps I need to offset it to account for AC's broken internal forces. Could be important in this case.
  4. deCarera
    deCarera
    4/5,
    Version: 1.3
    Seems much more understeery than tha Kunos car, is that by design? Weight, horsepower and torque numbers are different from the Kunos car as well, were their numbers inaccurate? I also seemed to have more grip with the standard Kunos higher tire pressures than your much lower pressures with sem-slicks. That also surprised me.
    1. Kyuubeey
      Author's Response
      Hey,

      The KS car has a ton of artificial grip in the rear tires and a completely wrong suspension geometry, so I don't know why you even take it seriously to begin with. My tires are reasonable and the curves match up reasonably well.
      Everything on the car is as accurate as I could make it, and the power is from a dyno done by Best Motoring. Although sadly they didn't show the sheet so I had to estimate the curve myself using the peaks. It's no surprise it understeers more, seeing as the KS car is far too oversteery even with the large amount of extra rear tire grip.
  5. leclettico
    leclettico
    4/5,
    Version: 1.3
    I don't know. She seems to me too soft on sospensions. From videos on Youtube she is stiff as the Kunos one.
    1. Kyuubeey
      Author's Response
      Hey,

      I literally have the calculation for the same dimension torsion bars that are on the car. Like the actual wheelrates and how much they change with the offsets.
  6. Amir Vodokotlic
    Amir Vodokotlic
    5/5,
    Version: 1.2
    Thank you again. Fantastic improvement.
  7. alekabul
    alekabul
    5/5,
    Version: 1.1b
    Excellent indeed! Lovely increase in FFB feel from the bigger inertia. And that rarest of all feelinds when tyre walls are clearly telling "Hey, back off, buddy!"
    Much improved over the official car.
    1. Kyuubeey
      Author's Response
      Thanks. Just a correction, the inertia is *smaller* than the KS car. And I believe it should go a little bit smaller yet.
  8. Orange4000
    Orange4000
    5/5,
    Version: 1.1
    Seems to be working. With semi slicks and 100% turbo... I can now do consistent 1 min 39
    point somethings at Brands Hatch. Previously I could barely do a lap.

    I found that adding a touch more positive camber to the front and some more toe out makes it even more stable.

    This is with a Logitech G25 with a Ricmotech Load cell kit and using a LUT from RasmusP.

    Thanks for your work.
  9. Sanch0z
    Sanch0z
    5/5,
    Version: 1.1
    This thing (and also BNR34) should on top of the top downloads list, like NFS Tournament pack or something. Suspension is understeery but it doesn't try to kill you anymore. It feels just right.
  10. robnitro
    robnitro
    4/5,
    Version: 1.0
    Thanks but how are you determining the physics /handling? Are you comparing lap times between established cars to determine how faster or slower it should be in corners etc?
    1. Kyuubeey
      Author's Response
      Hey. I'm using data from Porsche 930's, the production CTR-1 and the Yellowbird. I'm not comparing handling or anything, and I rarely do for cars like this. Too many factors. There's only one video of the Yellowbird being driven hard, and it's on a track that can't be replicated, the old Nordschleife. So it has to be done with numerical data and facts. For example I know the tires available are too grippy, as I haven't made a tire that would be realistic for a mid 80's performance tire, so it's useless to compare performance in corners before I'd make one.
  11. Jeremy Chaim
    Jeremy Chaim
    5/5,
    Version: 1.0
    Loving all the physics updates you've been sharing...thanks...
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