Assetto Corsa Porsche Cayman GT4 Round 5 Interlagos

Discussion in 'AC SRO Porsche Cayman Cup GT4 S1 Closed' started by Kenny Press, Oct 28, 2020.

  1. Matteo Santini

    Matteo Santini Pro Driver

    From one point of view you are right, on the other you are not.

    Ken, I'll try to be more clear with some examples even if I'm not a tecnician nor a game developer.

    If you have more than 1 level of intervention of the ABS you'll never get the same results in terms of braking space if we talk about a "brutal braking" in which you need the intervention of the ABS.
    ABS intervention is linked to some parameter (wheel RPM, brake calipers heat sensor, G forces, etc.) and you'll experience a different braking distance for any different level of intervention you'll set, otherwise you'd have only 1 choice instead of 9. :rolleyes:

    When the ABS intervention during a braking happens 4 or 5 times in a row your braking distance is increasing. That happens because, after the intervention of the ABS brake calipers will be "released" more and more times for the intervention of the electronics and that will have the effect to extend your braking distance.
    If you set that value to a lower number (I suggest to you a range from 1 to 3) you will "delay" the intervention of the ABS, and you'll be able to step more deeply on the brake pedal decreasing the braking distance.

    There are surely some difference between real life race cars and a "simulator" like AC about ABS functioning, and this game is surely far from perfection, but give it a try and see if you experience some improvements by these suggestions ;)
     
  2. Mark Johnson

    Mark Johnson Pro Driver

    i ran 8 on the ABS Matteo, for what i thought was one click less interference, (based on the help-tip) but sounds like you think i added more ABS ? i normally leave it as-is for this car, but the track felt particularly snatchy here (like a cold/green surface). I had meant to put it back to 7 for the race but forgot in all the excitement :p
     
  3. Matteo Santini

    Matteo Santini Pro Driver

    What you said makes sense with the progression of the value reported on stracker Mark.
    We have these values linked to that setup number: "1" = 0.08 (Me) "3" = 0.10 (Tim) - "8" = 0.15 (Mark Johnson). I'd expect that Syd run a value of "7" in his setup. So the progression linked to the stracker should be like this:

    "1" = 0.08 - "2" = 0.09 - "3" = 0.10 - "4"= 0.11 - "5" = 0.12 - "6" = 0.13 - "7" = 0.14 - "8" = 0.15

    This doesn't explain the value reported for Jos however, if he was running with "4" or "5" as he stated. I will make some tests on the server tomorrow trying with different settings in my setup and see what the stracker will record.

    I add as someone still noticed, that sometimes the indication you get from that "help spoiler" are not very accurate on AC, but you already know this. Like every "recent" sim AC is full of bugs, and I wouldn't be surprised to have found another one ;) Good times those of GTR2 when they released the full game without having to do 100 hotfix in a 4 months period. That's the bad side of the "early access" games. You're not guaranteed that developers will complete their work as they should :rolleyes::rolleyes::rolleyes::rolleyes::rolleyes::rolleyes::rolleyes::rolleyes::rolleyes::rolleyes:
     
    Last edited: Feb 3, 2021
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  4. Jos Ogos

    Jos Ogos Pro Driver

     
  5. Matteo Santini

    Matteo Santini Pro Driver

    I don't know if maybe is something related to the version of ptracker installed on your pc, but from what the server recorded on stracker, you haven't change anything between race 1 and race 2.
    This is a link to your best lap of race 1 recorded on stracker, and you can see that "ABS level" reports 0.0 http://managerdc6.rackservice.org:50328/lapdetails?lapid=105830#

    This is the link for your best lap of race 2, and stracker reports the same value 0.0 http://managerdc6.rackservice.org:50328/lapdetails?lapid=106073#

    So the options are 2:
    1) You thought to have changed your setup and than you loaded it again before the start, without changing actually anything;
    2) Your ptracker version does not record this infos. But you'd be the only driver between us 5 with the ptracker installed to have an issue like this
     
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  6. Flaviu Bozga

    Flaviu Bozga Pro Driver Donator

    I must agree with @Matteo Santini (good explanation) and @Tim Muttram
    A greater intervention have as result a longer distance to brake.
    Here is a video, from ACC, but it is the same thing
     
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  7. Ken Jagger

    Ken Jagger Administrator Staff Member Donator

    I'm not sure that this video demonstrated anything about ABS or stopping distances, at least it doesn't mean anything to me o_O. The variation in stopping time differences between the ABS stages can easily be accounted for by the human driver reaction times being 0.25 secs different. The ABS stages don't seem to make any difference without knowing the stopping distances.
     
  8. Ken Jagger

    Ken Jagger Administrator Staff Member Donator

    On a road car I would assume with early ABS systems there would've only been 1 setting for ABS, but with modern electronics as you've hinted at, especially on contemporary racing cars, temperatures, tyre grip detection, front wheel turning angle etc will probably be taken into account and the ABS system will modulate accordingly.
    Not necessarily, if the alternative without ABS is that tyres are locked under normal braking and sliding, therefore the car will continue at the same speed and cover more distance than an ABS system will be able to reduce. That's what ABS was introduced for, otherwise what's the point if it doesn't stop you sooner?

    The point that an experienced driver can potentially lap quicker with no or less ABS is not being discussed here.
     
  9. Matteo Santini

    Matteo Santini Pro Driver

    Ken, what should we have to answer? :rolleyes: There is no point in continuing to discuss it, unless you want to try a lower ABS level and trust me. It's something you can easily check with your eyes and experience on track. I don't know in which other way to explain this.

    Otherwise, if you think you're right and that "help spoiler" says the truth, just stay with your actual settings and God bless you :)
    Sorry if I insist Ken, but is a question of pure logic. You cannot have 9 different ABS settings and pretend to obtain the same braking space for each settings, even if a Robot will apply the same pressure to the pedal at precisely 250 km/h. It's simply IMPOSSIBLE, unless they're all linked to the same parameters and the same EXACT values. But in this case you'll have only 1 choice instead of 9, I repeat. Otherwise, it's you that should explain us why in real race cars we have 9 different settings. We can go on and on for hours, but you won't convince me. That's sure

    I add that even brake pedal linearity is surely important in AC, but is a matter of feelings. I heard a lot of drivers saying a lot of different things about this, but it's something you have to test on your own and depends by your braking "mode". We're always talking about a game. Leave that "simulator" apart. Real race cars simulators worths million of euros, we're playing with something that mimics the physics and electronics of a racing car. But Kunos doesn't have any real parameters about this aspect. They had to figure out something to improve different level of ABS intervention linked to some parameters.
     
    Last edited: Feb 3, 2021
  10. Flaviu Bozga

    Flaviu Bozga Pro Driver Donator

    I think the sole purpose of the ABS it is to prevent the blocking of the wheel and therefor to prevent losing the control of the car.
    I never thought of it as a tool for shortening the braking distance. By my logic and as Matteo write above, the intervention of the ABS lengthens the braking distance, but you can hard brake in safely manner.
    Yes, the braking distance it is shorter then the distance of braking with blocked wheels. And this is the ABS role.
    But if you are able to hard brake and modulate the brake force to not block the wheels, and stay at the limit of adherence, then the braking distance must be shorter.
    This is my understanding
     
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  11. Flaviu Bozga

    Flaviu Bozga Pro Driver Donator

    What can I say ;). I also love to debate and discuss. To say my point of view and see others.
    And I also I like to search the net for info.
    https://www.bmw.com/en/performance/pro-gaming-tips-for-racing-games.html
    Jimmy Broadbent: A driver aid is not a bad thing in itself. Even real GT3 cars use assistance systems such as traction control and ABS. That said, you shouldn’t rely on them permanently. At full throttle, you always notice the traction control coming on and helping – but it does make you slower. During full braking the ABS kicks in, which lengthens the braking distance. That's why you should aim to drive with such control that the ABS or the traction control just doesn't even come on.
     
    Last edited: Feb 3, 2021
  12. Flaviu Bozga

    Flaviu Bozga Pro Driver Donator

    In the end, it is the same distance :)
    abs.png
     
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  13. Ken Jagger

    Ken Jagger Administrator Staff Member Donator

    Not sure how we got into a discussion about ABS and its dynamic complexities, seeing as all I did was question what the AC Hint/Help system was saying :rolleyes: And I never said I believed it either.;) See my post #18.
     
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  14. Matteo Santini

    Matteo Santini Pro Driver

    Didn't want to be rude Ken, it's just that it's difficult for me to go deep into these technical issues speaking in english. We know a good number of AC beta testers, but they never gave to our team any spoil on AC "bugs", that we had to discover on our own... The actual Simracing landscape in Italy is something different by this place. There's no cooperation between different drivers of different teams, and there's a lot of competition. I'd say too many. I'm here for this reason mainly :)
    I like to play on equal terms with my "enemies", so I prefer to race in places like this, where competition is not exasperated and there's cooperation between users.
    I never keep any "secret" about this, as you can notice that my suggestions started after Jos' post about his ABS setting. As usually Jos is not so far from my laptimes, I wanted to tell him what was wrong in his setup, with the hope to do a good service for all the SRO comunity.
    Let's bury the hatchet:D
     
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  15. Ken Jagger

    Ken Jagger Administrator Staff Member Donator

    That's a big shame as it sounds so different to the simracing landscape that I've experienced over the years with sites like Race2play, SimracingGP and SRO to name a few. I can't think that it help's to attract new blood to the scene which is disappointing.
     
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  16. Matteo Santini

    Matteo Santini Pro Driver

    If you want me to be honest, I can say that money always spoils everything. In top champ in Italy you have teams like this => https://www.jeanalesiesa.com/en/
    No wonder that sponsor like Samsung and Sparco want their chaps to have a "winning" image. Since a couple of years "esports" have obtained the recognition of a "sporting discipline" by our National Olympic Comitee (CONI) in Italy. Driver academies are proliferating like mushrooms:rolleyes:
    It has become a competition to see who has the longest penis:D:D:D

    By a couple of months is started another "project" to "tap" money to virtual drivers. Our "Automobile Club Italia" (ACI - body that organizes the real race cars championships) now wants you to buy a license for 15 € to join their first "sponsored" online champ that will take place on the most popular site of online racing in Italy (Drivingitalia.net) They just put their label on a piece of paper to "certificate" that you're a good simdriver and you can take part to that champ. You just have to pay! I'd rather call "legalized theft", but most people don't even realize it. :rolleyes::rolleyes::rolleyes::rolleyes::rolleyes:
    These people smell the money and do nothing without it ending up in their pockets:p

    It is no coincidence that I decided to go gladly to places like SRO and SROUK during these years, because i like to be with people who love the fun and romantic aspect of simracing. I could write an Encyclopedia after 13 years of simracing in Italy and you would surely have a lot of laughs.

    If I can give an advice to this place is that you should always avoid to give away cash prizes.

    Once upon a time the "simracer" was not a profession nor a work, but it's unclear to a lot of young people... so we return to my initial point... money always spoils everything:(
     
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  17. Mark Johnson

    Mark Johnson Pro Driver

    so as a recap, did we conclude that a lower number is less ABS? (as opposed to the tool tip).
     
  18. Matteo Santini

    Matteo Santini Pro Driver

    You should experience a delayed intervention of the ABS with a lower value.

    Another aspect to take into account is the setting of brake pedal linearity. If I can suggest something to you, make the attempt to try the extreme max and lower values for linearity. Than you can try something inside that range and see if you experience improvements when braking or come back to the extreme value you prefer most. These are very "personal" settings however, because a lot of people have different opinions on this matters. My suggestion is that of making some tests on your own without being influenced by what you read on these matters. Having a good confidence when braking is much more important that any settings in your setup.

    I'll do some tests after dinner to see what stracker will report for different ABS settings.
     
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  19. Matteo Santini

    Matteo Santini Pro Driver

    I've to say I was wrong after tonights test @Mark Johnson and @Ken Jagger.

    Help tip is correct. Lower values means a greater intervention of ABS.

    With higher values you will experience a delayed intervention of ABS. After that I'd say that a greater intervention of ABS on this car in the end is better.
    With values of 4 or higher I started to experience some "micro tire lock" that eventually enlarged my braking space, aspecially at T1.
    So I stay on my opinion about the fact you should choose a value in a range from 1 to 3. BUT, this fact will depend mainly on your braking "style". I usually push on the brake pedal very hard in the first part of an "abrupt braking" then I start to receive some feelings from FFB. If I feel my tires are locking I lighten the pressure on the pedal a bit to regain control before pushing down the pedal again to brake slightly towards the apex, as a sort of human ABS.

    In the end, my suggestion could turn out to be a hole in the water for someone as almost everything depends on the feelings you have with your FFB, on your "reflexes" and your eyes. Just try that range set 1 -3 and don't be shy when pulling on your brake pedal, as the ABS on this car do its work perfectly :D:D:D

    I apologise for the misleading infos contained in my previous post:oops::oops::oops:
     
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  20. Jos Ogos

    Jos Ogos Pro Driver

    That's what I always thought and felt @Matteo Santini. Thanks for confirming it. So I've run the Cayman with minimum ABS to date (mostly)... We'll see what difference it makes in the next race although, my problems are unfortunately far beyond the ABS with this car. I'll envisage a device to deliver an electroshock every time I downshift in excess or brake too late :rolleyes:. That will be far more effective than setting the ABS correctly :D.
    All the best.
    Jos
     
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