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View Full Version : Porsche 935/77 - Broken Physics, can we fix it?



napocapo69
11-03-2018, 19:33
I've trouble to master Porsche 935/77 model.
It is not only due to my driving skills and to the tricky nature of the car.

I believe the physics of the car is broken.

Below a short video of the car behaving more like a motorcycle than a car.

https://www.youtube.com/watch?v=0DImzvaszEw&list=PLd04DZZpZciDKykuappPy1y6Yazvw_oYe

Seelenkrank
11-03-2018, 19:36
*wtf*?

Mahjik
11-03-2018, 19:39
Does this happen all the time in the same place?

Does this happen on other tracks?

mr_belowski
11-03-2018, 20:59
Never seen that before. Are you massively overclocking your processor?

John Hargreaves
11-03-2018, 21:04
Can you try to give more information about the circumstances that cause this. Can you reproduce this event or does it happen at random? How many times has it happened? The more info you can supply, the better the devs can pinpoint the cause. Thanks for posting this, I'm sure they will investigate.

Mad Al
11-03-2018, 21:07
Let's start with the basics, default setup ? Wheel or Gamepad (so loose or stable).

Plus as always, PC specs

Jussi Karjalainen
11-03-2018, 21:50
That looks like a very specific glitch rather than "broken physics". Any information and possible reproduction steps you can provide would be really helpful. I just drove about 30 laps on a couple of tracks in that car today and never had anything remotely like that occur. =/

Raklodder
11-03-2018, 22:17
https://i.imgur.com/rTRINHrm.jpg (https://i.imgur.com/rTRINHr.jpg) https://i.imgur.com/vDbfeBCm.jpg (https://i.imgur.com/vDbfeBC.jpg)

It almost looks like you ran into some dsynced object (wouldn't be the first time) or perhaps it was a ghost car?

Sampo
12-03-2018, 07:15
It seemed to start with the rear going through the asphalt slightly in both cases (see 1:04).

Sankyo
12-03-2018, 07:57
Looked to me as if the suspension went into some sort of oscillation just before it did the wheely. Is that particular track bumpy at that spot?

CastrolGT
12-03-2018, 08:12
just tested the 935/77 on Sugo like the OP, nothing. the track is a bit bumpy, but I don't have that wierd physics. cold tyres, warm tyres, same: nothing special

satco1066
12-03-2018, 10:12
would also say, the car jumped over a desynced invisible object.
There are parts of another car laying arround.

Had a similar problem once in Sugo. One driver left the session right at the start. After the first lap, one of the drivers jumped over an invisible object, right on
the position, where the drivers car who left stood in the grid.
S..t happens


https://www.youtube.com/watch?v=lXJw9JVYiSQ

napocapo69
12-03-2018, 13:17
Does this happen all the time in the same place?

Does this happen on other tracks?

Verified only at SUGO (sportland).

napocapo69
12-03-2018, 13:17
Never seen that before. Are you massively overclocking your processor?

No overclocking at all.

napocapo69
12-03-2018, 13:25
Can you try to give more information about the circumstances that cause this. Can you reproduce this event or does it happen at random? How many times has it happened? The more info you can supply, the better the devs can pinpoint the cause. Thanks for posting this, I'm sure they will investigate.

Verified only at SUGO. It happens almost always (in this circuit), while performing a moderate acceleration over slopes (at low gear).

It apperars to be related to low tyres pressure.

napocapo69
12-03-2018, 13:31
Let's start with the basics, default setup ? Wheel or Gamepad (so loose or stable).

Plus as always, PC specs

Car setup: the default "loose" setup but lowering the tyres pressure

Using a wheel (Logitech G29)

PC specs
CPU. AMD RYZEN 6 1600x
GPU: NVIDIA GTX 1080
RAM: 16 GB GSKILL 3ghz
Motherboard: ASUS Crosshair HERO VI
Game installed on SSD

napocapo69
12-03-2018, 13:36
https://i.imgur.com/rTRINHrm.jpg (https://i.imgur.com/rTRINHr.jpg) https://i.imgur.com/vDbfeBCm.jpg (https://i.imgur.com/vDbfeBC.jpg)

It almost looks like you ran into some dsynced object (wouldn't be the first time) or perhaps it was a ghost car?

There was no ghost car. I tried also today, and the car still tends to go on two wheels.

rosko
12-03-2018, 13:37
Car setup: the default "loose" setup but lowering the tyres pressure

Using a wheel (Logitech G29)

PC specs
CPU. AMD RYZEN 6 1600x
GPU: NVIDIA GTX 1080
RAM: 16 GB GSKILL 3ghz
Motherboard: ASUS Crosshair HERO VI
Game installed on SSD

lowering the tyre pressure to what???

napocapo69
12-03-2018, 14:03
Looked to me as if the suspension went into some sort of oscillation just before it did the wheely. Is that particular track bumpy at that spot?

Actually, IMHO, the track is not that bumpy in those track sectors.
But yes, I agree with you, there is too much oscillation that may cause some kind of weird weight transfer to the back of the car. But I'm speculating.

Bealdor
15-03-2018, 08:39
What are your diff settings (differential type, power ramp, number of clutches, preload)?

pferreirag60
19-03-2018, 17:17
Very strange, since the porsche DLC came out, that ive been driving almost exclusive all the porsches. Sugo been one of my favorite tracks, so i drive a lot in sugo. Never such a think happened to me, and i ve driven all the porsches dlc in sugo, practice, race and alone, in all weather conditions and nothing like that happened.

And you have a good CPU, so very strange...

Azure Flare
20-03-2018, 01:24
I've trouble to master Porsche 935/77 model.
It is not only due to my driving skills and to the tricky nature of the car.

I believe the physics of the car is broken.

I find the car to be not too terribly difficult to drive. You just gotta know when the boost comes in. However, like Jussi said, the physics aren't "broken", you just found a very specific glitch.