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Thread: Car behaving COMPLETELY different in race vs private testing ???

  1. #141
    GT3 Pilot Schnizz58's Avatar
    Join Date
    May 2015
    The Duchy of Grand Fenwick
    Quote Originally Posted by MaXyM View Post
    As I wrote in another thread, I suspect it has something to do with initial grip of track at race beginning. It's like it's completely clean, not rubbered. At the same time surface during Private Practice has more initial grip.
    I came to this conclusion because of the fact, that at the end of longer races (ie 2h), I could do times closer to what achieved on Private Practice.

    All those real-time changing conditions and factors (pressures, temps, amount of fuel, self-confidence/risk) adds lot of variability which might be using as excuse. For sure it makes harder to debug the problem especially without tools which could display values playing role in car behavior evaluation.
    But it's too deterministic to be not obvious, that we are facing some issue. Unfortunately SMS decided to give us ahm ... silence... providing no single answer/information. I'm sure they know the answer (why shouldn't they). To me it's another (non-direct) proof confirming that it's an issue. Otherwise they would have been providing dozens scientific evidences to back up the PC2 cars behavior.
    MaXyM, did you see this:
    "You need a good bra in the Karussell." -- Sabine Schmitz
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  2. #142
    Join Date
    Nov 2011
    I always have feeling something is wrong with it. That simulation of some independent values is in fact not independent but scaled to something else.
    But Mahjik confirmed it for XB1. I'm on PC.

    In fact, in the past (I believe before patch3) I noticed difference in amount of water on the track depending on number of cars. I mean the more cars the more water. But I though it's a random occurrence rather than deterministic issue. Now I think it might be related to not drying best line under constant (light) rain. Simply while more cars should heat up the best line speeding up vaporization, this effect is reversed by more water generated by the game.

  3. #143
    Kart Driver
    Join Date
    Nov 2017
    I have tried to post about this issue several times and it's good to see a discussion going. I totally agree. I am 2 seconds faster in testing than qualifying and then a further 2 seconds down in the race. Braking points are obviously earlier in the race vs qualifying. If I try to brake at anywhere near the points I would in testing, I miss the corner totally. I drive conservatively in races, so I expect to be a bit slower. But practice at least, where mistakes are pretty cost-free, should be competitive with private testing times. Even putting aside the times, the car FEELS different. And always in a negative way. I guess its just something we have to live with. But it is galling that it doesn't seem to affect everyone the same way. I can be third in qualifying but 10th or lower in the race with much worse lap times than the guys I was even with in qualifying. Does it matter? Not really. But it is frustrating not to be able to replicate performance. And with limited set-up knowledge, I don't feel able to consistently adjust for the different handling.

  4. #144
    Superkart Pilot
    Join Date
    Jan 2017
    Quote Originally Posted by Schnizz58 View Post
    This is an interesting post. I use PS4 not XB1 and i feel a big loss from qualy to race where grid size is effectively the same BUT the loss of grip he describes is 100% what i experience, biggest issue is coming out of corners and spinning then an overall sense of less grip but corner exit is chronic.

  5. #145
    Kart Driver
    Join Date
    Sep 2017
    I've noticed the difference between private practice and online races since game release.
    I race in a league every second Sunday I have a 90min or some times a 2.4hr race.
    On my off weekend Iam usually practicing in private practice.
    I'am ALWAYS 1-2 seconds quicker in private practice then the online race with the same setup and fuel loads and same track conditions.
    Only a couple of my league buddies seem to notice.. maybe it's car related? As we run a mixed lmp2 and gt3 field.
    Technically with live track it should be the opposite right? Slower in practice with one car lapping putting down rubber... in a race lobby with 25 guys circulating the track should get faster as it rubbers in??

    I did have exception which was last race at
    Daytona road course... a 2.4hr race set to x10 time progression and light rain x3 slots and 1 overcast slot. Race start at 16:00
    I was in a gt3 for the first 90mins I was fine... matching most of my practice times... even in the noght period. after I pitted.. zero grip all of a sudden.. same conditions... on worn wet tyres i had better grip then fresh wet tyres.

  6. #146
    Kart Driver
    Join Date
    May 2017
    Tires are sometimes a pain, so I can concur with Glasnost.

    Happened to me a couple of time at the Nordschleife. I had to pit because I ran out of fuel and changed tires, too. Back on track the car felt like a pile of crap, jumping from over- to understeering and backwards, though both pressure and temperature were within an optimum range. Somehow I survived one lap, or crashed, pitted again with the same strategy and the car felt exactly like it should afterwards.

    Or another example. We had a race a couple of weeks ago at Zolder. We started with light rain, which stopped at a certain point and the track got dry step by step. Rain tires on a (partially) dry track always do the same thing: They're getting hot and need to be cooled. Well, sometimes the physics of pCARS2 decides to ignore the laws of physics, and wet tires cool down on a dry track.

    Click image for larger version. 

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    FYI, at lap #14 I've pitted and got a new set of slicks. The drop of temperature with those was completely ok, because the track had only around 19°C at this point and the track wasnt completely dry. During the rain period my tires were completely fine, and as soon as the rain stopped there must have been a new ice age starting.

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