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Thread: Project CARS 2 Suspension Calculator v0.996(b)

  1. #321
    WMD Member PostBox981's Avatar
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    Quote Originally Posted by F1_Racer68 View Post
    I personally use PortableApps for almost all my applications where possible since they don't clutter the registry.
    Okay, this part finally convinced me to give it a try. Downloaded it and unpacked it to my hard drive. At a first glance it works like a charme and all those car´s names (thanks again Jussi) are no longer needed. Thank you for linking me to a better life.
    CPU: Intel Core i7 5820K@4.2 GHz | Mainboard: MSI X99-A SLI Plus | RAM: 16GB DDR4-2400 | GPU: nVidia Geforce GTX 1080 ti Founders Edition @+100 MHz | Oculus Rift CV1 | Operating System: Windows 10 Home x64 | Controls: Fanatec ClubSport Wheel Base V2.5 / Forza Motorsport Wheel / Clubsport Pedals V3 / ClubSport Shifter SQ

    In case you´re looking for some clean and relaxed online racing, take a look at this: www.malzbierbude.de
    The following 2 users likes this Post: F1_Racer68, Jussi Karjalainen


  2. #322
    Superkart Pilot
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    Hiya jussi ,
    I think I have come across a problem with Porsche gte and only in the rain , note only in rain light rain and normal rain lol,

    I've tried every setting possible for a league race ,over 5 hours testing for an hour an half race ,

    The race starts off light rain ,so 4 weather slots light rain ,clear ,clear ,light cloud , race time 90minutes ,gte class, with rain stopping 30 minutes into race ,2 pit stops ,most of race will be raced on wet tyres due to track not drying out as last corner to finish still being soaking wet , track Sonoma

    The only car it affects is Porsche gte,

    On wet track the ffb wheel is as light as a feather even setting volume on full , even if you left volume on full when track starts to dry ffb wheel would be so stiff you can not turn wheel ,

    No other gte car feels like a feather on ffb wheel only in rain, in dry ffb wheel is normal ,

    We raced at imola couple of weeks ago and race was part wet and at time I thought there was a problem with my wheel,

    I can't map anymore buttons , I had already put down force to max and traction on ,I don't normally run assists,,

    I even put your suspension figures in ,no difference,

    As I say 5 hours of testing and come to conclusion ffb is far too light ,as light as feather, only in rain ,

    You also said this was a mid engine car as I was thinking ffb volume was far too light due too engine sitting right at back,

    But after you saying its a mid engine I now know that's not the problem,

    Any help please before race starts tonight ,if not I will have to sit this league race out,

  3. #323
    GTE Pilot hkraft300's Avatar
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    Try maximum caster angle. That’s the only thing I can think of to help for better steering feel in the wet.
    PS I haven’t driven the RSR in rain.
    G29 FFB RAW 95-35-5-5

    What tire compound were you using?
    What was your tire pressure?
    What was the track and tire temperatures?

  4. #324
    Superkart Pilot
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    Quote Originally Posted by hkraft300 View Post
    Try maximum caster angle. That’s the only thing I can think of to help for better steering feel in the wet.
    PS I haven’t driven the RSR in rain.
    I did not race the car in the end , I tried castor angles but I had to be very careful I wasn't overheating wet tyres on a 95% dry track ,
    We had the last corner 100mtrs to start finish line still soaking wet on 90minute race,

    Problem was it was a wet race for 30 minutes and as above last part of track was still wet, while rest of track was bone dry ,so you had to stay on wets until last 30 minutes,

    Part of my problem was ffb on wheel was so light but once track was drying ffb came back to normal ,

    I don't have enough buttons to map for plus and minus volume on ffb ,even on 100 % in wet ffb was still light as a feather,

    It doesn't matters now as season is over but I won't chose that car again in case we have a wet race ,that's a shame because in the dry the car is great ,

  5. #325
    Kart Driver mcooley9891's Avatar
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    Thanks

  6. #326
    GT4 Pilot
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    I'll admit right away. I didn't search through the whole thread. But here's a quick one:

    When setting up the suspension for the first go, do I adjust the dampers to aim for slightly lower 3in/s percentage for rear? Or 80/50 Front/rear is ok as long as nominal values are lower for rear dampers?

    Thanks,

    Btw, I'm just starting to get a grip of the sheet, and it's marvellous! The given setup are really pleasant to drive!

    Thanks x 2!
    All platform and wheels: Official Force Feedback Guide
    Info: pCars 2 Tire Pressure Official Guideline | Wheel FFB guide

    Steering: G27 | My In-game FFB:Informative 98/40/45/3

  7. #327
    WMD Member Sessionerror's Avatar
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    Jussi, with the next DLC impending, is there an ETA for a suspension calculator update?
    Last edited by Sessionerror; 05-06-2018 at 06:08. Reason: Typo
    a.k.a. "Chief fast sock" // German Project CARS Community: www.pcars-forum.de
    The following user likes this Post: cluck


  8. #328
    GTE Pilot hkraft300's Avatar
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    Quote Originally Posted by poirqc View Post

    When setting up the suspension for the first go, do I adjust the dampers to aim for slightly lower 3in/s percentage for rear? Or 80/50 Front/rear is ok as long as nominal values are lower for rear dampers?
    I think it would depend on the weight distribution and spring bias. How close to the rear is your spring bias? How tight/ loose is the diff?
    If the rear is heavy you could go a higher % average on rear dampers to keep it under control. Or if your spring bias is further to front.
    G29 FFB RAW 95-35-5-5

    What tire compound were you using?
    What was your tire pressure?
    What was the track and tire temperatures?

  9. #329
    GT4 Pilot
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    Quote Originally Posted by hkraft300 View Post
    I think it would depend on the weight distribution and spring bias. How close to the rear is your spring bias? How tight/ loose is the diff?
    If the rear is heavy you could go a higher % average on rear dampers to keep it under control. Or if your spring bias is further to front.
    I was under the assumption that, for example, on no downforce cars(front engined rwd), the spings need to be a bit tighter in front. From there, dampers need to be in the optimal range of stiffness the springs dictate. I'm no guru, i'm just following Jussi general guidelines.

    Isn't it the purpose of the calculator? Takes all the car metric into account to setup the suspension in it's optimal range?

    Real simple 2 step guide:
    1. Setup base numbers in the calc
    2. Tighten or loosen the rear depending in track behavior


    Am i wrong?
    All platform and wheels: Official Force Feedback Guide
    Info: pCars 2 Tire Pressure Official Guideline | Wheel FFB guide

    Steering: G27 | My In-game FFB:Informative 98/40/45/3
    The following user likes this Post: hkraft300


  10. #330
    Handling QA Lead Jussi Karjalainen's Avatar
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    What exactly do you mean by "Nominal numbers"? The actual numbers on the setup screen?

    It's as much a matter of taste as performance really for me at least. Generally I like to have the front stiffer because it tends to respond to different loads than the rear. The front generally benefits from having sharper responses to steering input, whereas the rear often benefits from having a smoother response to power application (so that it digs in and pulls out rather than just snaps the grip). The slight understeer this tends to introduce can also be beneficial for general stability. But there are many ways to go about it. =)

    The spring frequency and critical damping rate calculations already take into account the weight and weight distribution of the car, so from that point of view you probably don't need much adjustment based on weight distribution. However weight distribution does affect other things, like traction, so a really rear heavy car might have so much weight sitting on the rear tyres that you need to make the setup more "oversteery" to get behavior similar to a car with a more even weight distribution.


    The new cars should be coming in fairly shortly, fingers crossed, knock on wood.
    The following 8 users likes this Post: AbeWoz, F1_Racer68, hkraft300, Maskmagog, poirqc, PostBox981, Sessionerror, Zeratall


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