Braking Issue

[sfrost]

Everytime I go for a big braking zone in the GT cars I can feel the rear of the car wanting to step out despite me not steering at all just simply braking in a straight line. This has happened with the BMW Z4 gt3, hurucan GT3, mp4-12c gt3, zonda R. I am running the base setups for these cars, haven't made any changes to what assetto corsa gives, and it happens even when the brake bias is so far forward like with the z4 and its 72% forward brake bias.

Got my pedals and my wheel all setup properly and calibrated and know they are not the issue. Not running with ABS. Watched my replays in 12x slow mo and can see I am not turning the wheel until I need to start catching the slide.

The only way I have found to alleviate this problem is to brake really lightly about 50m before the normal braking zone of the AI and coast into the corner.

Is there any other way to sort this issue out like a setup change or something? Also, why is the default brake bias so far forward for all the cars?

[Talkie Toaster]

Do you get the same issue with ABS and TCS enabled? I believe the GT3 cars use these in the real world anyway.

[IAN-WIGAN-GB]

does it do it on standard set ups? you cud try brake bias or suspenion or aero im no expert im using g27 at 65% ffb gain that helps me

[AlienDSM]

Well it can various things that might cause the rear end to loose grip while braking. One thing you can look at is the rear low speed rebound and set to a lower value. Another adjustment can be the front low speed compression; where setting it high can cause the weight transfer to the rear when under braking. Another thing to consider is the the amount of rake ( front ride height compare to rear ride height). Also, you may want to look at the rear downforce. If you want you can PM me in order for me to elaborate more.

--- Also, high camber can impede the stopping power of the car, which can cause you to input too much braking

[sfrost]

Originally posted by Talky Toaster:

Do you get the same issue with ABS and TCS enabled? I believe the GT3 cars use these in the real world anyway.

Would like to resort to ABS and TC as last resorts, I prefer driving with as few aids on as possible :P

Originally posted by IAN-WIGAN-GB:

does it do it on standard set ups? you cud try brake bias or suspenion or aero im no expert im using g27 at 65% ffb gain that helps me

Yh I haven't made any changes to the cars, just running the standard setups they give you in the career mode.

Originally posted by CrazyAK47:

Well it can various things that might cause the rear end to loose grip while braking. One thing you can look at is the rear low speed rebound and set to a lower value. Another adjustment can be the front low speed compression; where setting it high can cause the weight transfer to the rear when under braking. Another thing to consider is the the amount of rake ( front ride height compare to rear ride height). Also, you may want to look at the rear downforce. If you want you can PM me in order for me to elaborate more.

--- Also, high camber can impede the stopping power of the car, which can cause you to input too much braking

I would greatly appreciate the help when it comes to setup work, haven't done them before and although the game has the tool tips I'm pretty sure there are some nuiances in there that aren't described so some guidance would be greatly appreciated :D

[kazereal]

Adjust brake balance front/back - you'll need to adjust during race again when tyres are worn and not so much fuel on-board, then again after pitstopping.

That's part of racing.

Bind the adjustment somewhere or take note of keys to use.

[Marty]

As CrayzAK47 says there are lots of things that effect brake stability beyond just brake balance.

The weight shift to the front generally takes rear grip away under braking and this can be adjusted with suspension and damper settings.

Also diff coast setting will have quite an impact on this so you can reduce this if you want more stability under braking but it may then cause the car to understeer more on entry. Having a car a little loose on entry is actually faster most of the time and better then a car that doesnt want to turn in.

Regarding ABS this really is quite an advantage to use if allowed and gt3 has it so even the real pro's use ABS to some extent. You have multiple settings for it and the biggest advantage ABS can give is that you can brake a bit harder without locking the inside front tyre. This will both avoid flatspots and give better braking at the critical point then no ABS 95% of the time.

If you really hate these factory aids then maybe try another car thats not dumbed down for gentelmen drivers like the gt3 class. Sure those aids are enabled for the gentelmen drivers to not be a total hazard on track but even the top pro drivers still use these aids to some level as its an actual advantage. ABS they will all use TC probably only in a race as better drivers will be quicker over a single lap with it off or at very low levels. In a long race though TC will save rear tyres so they will all use it to some extent.

[kazereal]

Originally posted by Marty:

As CrayzAK47 says there are lots of things that effect brake stability beyond just brake balance.

The weight shift to the front generally takes rear grip away under braking and this can be adjusted with suspension and damper settings.

Yes, there are many factors.

But during races there may be uneven wear of tyres, track conditions change and so on.

Sure, you can just adjust brake pressure with your foot during races to compensate, but adjusting balance will make it simpler to drive in hectic situations. There's also more than one ABS setting in some cars so changing that might help as well.

Unless the braking problem is really extreme I would not touch suspension because of it since that would affect handling elsewhere too.

[sfrost]

I am only running the career mode races atm, which are about 8laps so tyre wear doesn't really come into it.

But I gave up trying to use the default setup and instead am building my own atm. It has slowed down my progression in the career mode alot but I feel it will be better in the long run as I will have better car & track knowledge plus a setup I can turn to for longer races.

[sfrost]

Been doing alot of setup work for the car and also added some brake gamma (different profile for the pedals for road cars, gt cars and open wheelers) and it seems to have solved the problem. Rear of the car isn't trying to overtake the front at every braking zone and can also trail brake into corners now as a result.

[Peter Mathen]

So years later same problem, I thought with the new physics update it would be better.

I tried the Z4 and the SLS AMG on Nürburgring GT. Nearly not driveable, I'm loosing the rear on each faster corner, drifting a lot. Trail breaking not possible in Schumacher S even the smallest gas reduction makes car unstable.
In comparison to RaceRoom and rFactor2 there seems something wrong, any ideas what to change?
I bought the new DLCs in the hope to have fun.

[FHarbor]

i getting the same issue recently.. weird

[Mr Deap]

Originally posted by sfrost:

Everytime I go for a big braking zone in the GT cars I can feel the rear of the car wanting to step out despite me not steering at all just simply braking in a straight line. This has happened with the BMW Z4 gt3, hurucan GT3, mp4-12c gt3, zonda R. I am running the base setups for these cars, haven't made any changes to what assetto corsa gives, and it happens even when the brake bias is so far forward like with the z4 and its 72% forward brake bias.

Got my pedals and my wheel all setup properly and calibrated and know they are not the issue. Not running with ABS. Watched my replays in 12x slow mo and can see I am not turning the wheel until I need to start catching the slide.

The only way I have found to alleviate this problem is to brake really lightly about 50m before the normal braking zone of the AI and coast into the corner.

Is there any other way to sort this issue out like a setup change or something? Also, why is the default brake bias so far forward for all the cars?

It's because of lack of simulation value that require apartment size building PC or a quantum one.

It's a trade off in the driving model to make it look as much as realistic as possible... Like holding the brake at 100% with ABS till mid entry corner, pretend it's driving skill & if it doesn't allow you to do that claim the game is not realistic.

[sfrost]

Originally posted by Mr Deap:

Originally posted by sfrost:

Everytime I go for a big braking zone in the GT cars I can feel the rear of the car wanting to step out despite me not steering at all just simply braking in a straight line. This has happened with the BMW Z4 gt3, hurucan GT3, mp4-12c gt3, zonda R. I am running the base setups for these cars, haven't made any changes to what assetto corsa gives, and it happens even when the brake bias is so far forward like with the z4 and its 72% forward brake bias.

Got my pedals and my wheel all setup properly and calibrated and know they are not the issue. Not running with ABS. Watched my replays in 12x slow mo and can see I am not turning the wheel until I need to start catching the slide.

The only way I have found to alleviate this problem is to brake really lightly about 50m before the normal braking zone of the AI and coast into the corner.

Is there any other way to sort this issue out like a setup change or something? Also, why is the default brake bias so far forward for all the cars?

It's because of lack of simulation value that require apartment size building PC or a quantum one.

It's a trade off in the driving model to make it look as much as realistic as possible... Like holding the brake at 100% with ABS till mid entry corner, pretend it's driving skill & if it doesn't allow you to do that claim the game is not realistic.

How annoyed do you have to be to respond to a post from 2 years ago? Learn to let it go my guy, you'll be happier that way.

[Bigbazz]

Aside from the necro, it's silly when people blame the cars/game for their inability to drive a car. Maybe it hasn't changed in 2 years because your driving technique has not adjusted to fix it in those 2 years.

The rear stepping out under braking when not steering is a real thing, it can be helped with setup. Not every problem you come across has to be the fault of the game, take some responsibility.

[sfrost]

Originally posted by Bigbazz:

Aside from the necro, it's silly when people blame the cars/game for their inability to drive a car. Maybe it hasn't changed in 2 years because your driving technique has not adjusted to fix it in those 2 years.

The rear stepping out under braking when not steering is a real thing, it can be helped with setup. Not every problem you come across has to be the fault of the game, take some responsibility.

It's 1 thing for 1 person to restart a thread from 2 years ago but for a different person that wasn't even involved in the thread from 2 years ago to join in on the dead conversation because of something he read is something else.

I say the same words to you as well. Let it go my guy, you'll be happier that way.