Assetto Corsa Competizione | Update 1.9 and 2023 GT World Challenge DLC Out Now

Lamborghini Huracan GT3 Evo 2 joins Assetto Corsa Competizione in Update.png
After months of hype, the wait is finally over. Assetto Corsa Competizione is now at version 1.9 and with it comes the 2023 GT World Challenge Pack. Here's all you need to know.

Image Credit: Kunos Simulazioni

Ever since the previous update that gave fans the American Tracks Pack, Assetto Corsa Competizione developers Kunos have been rather quiet. But the wait is finally over as the official game for all things SRO Motorsports Group received its latest update today.

Revolutionising the game's physics, force feedback and tyre model, the update addresses numerous community concerns from previous versions. The game update is joined by a major content drop bringing the game up to date for the 2023 GT World Challenge season. With so much going on, it's worth diving into everything new in the game. Here's all you need to know.

Transformed driving physics​

Earlier in the week, fans got to learn about all the work that has gone into making version 1.9 the "biggest ACC update ever." With major changes to suspension geometry and more flexibility to the tyre model, the game should drive very differently to older versions.


In fact, the tyre model will no longer feature pinhead accuracy when it comes to tyre temperatures and pressure. Instead, drivers will have to make a trade off on tyre pressures between grip and longevity. Whereas the previous tyres had to run at 27.5 psi for optimum grip, the new model will offer a larger window between 26 psi and 27 psi.

As for suspension changes, Kunos developer Aristotelis Vasilakos detailed the bump stop modifications in version 1.9 on-stream. Gone is the near-infinite bump stop compression which resulted in unrealistic bouncing, cars should now ride kerbs and bumps better.

2023 GT World Challenge Pack​

The 2023 GT World Challenge Pack brings Assetto Corsa Competizione up to spec for this year's running in SRO Motorsport Group championships. Mostly focusing on the European calendar, the pack includes one track and three cars.

Valencia joins ACC in next update.png


Adding another venue to the slim track list, Circuit Ricardo Tormo is located near Valencia, Spain. Following a successful first visit in 2022, GT World Challenge Europe will return to the circuit later on in the year. When that event takes place in the real world, fans will already be acquainted with the circuit thanks to it joining ACC.

Elsewhere, 2023 is a big year for GT3 racing. Not one, not two, but three new models hit racing tracks around the world this year and Kunos has managed to reflect the additions in its game. The Ferrari 296 GT3 and Porsche 992-generation 911 GT3 R are brand new models making their first steps in the category this year. The Lamborghini Huracan GT3 Evo 2 is a refined version of the Huracan already present in GT3 races around the world.

All three of these racing cars are included in the 2023 GT World Challenge Pack, available now on Steam for €12.99. The physics updates come for free. A simple download that most ACC players are anxiously waiting for as I write this will provide you with all the physics, BOP and updates.


This latest update certainly changes Assetto Corsa Competizione for the better. But is it enough to give a new lease of life to the game? Our friends at Overtake have put together a video review on the content and new game version. Here's what Champion Joe thinks.

What are you most excited to try out in this new version of ACC?
About author
Angus Martin
Motorsport gets my blood pumping more than anything else. Be it physical or virtual, I'm down to bang doors.

Comments

I did a cursory test of the the 1.9 update plus the patch that just came out. Here is how I did it.

Did 10 laps of Oulton Park with the new aggressive setup and tire pressures.
My laps was not close to my best and here are the tire pressures before and after.

Car Used: BMW M6
FL 25.0 ->26.0 FR 25.3 -> 26.2
RL 25.4 -> 26.5 RR 25.7 -> 26.6

The car felt heavy as opposed to how it felt yesterday when I drove Oulton Park. Getting into corners was an adventure. I actually felt like someone had turned up the FFB on my wheel. I was getting buff during the test.

I then loaded a setup that I use that mimics the old aggressive setup with just tire pressure changes to get them into the 27.7 psi range that was the best operating pressures. Here is the before and after

FL 25.9 -> 27.4 FR 26.5 -> 27.4
RL 26.5 -> 27.2 RR 26.8 -> 27.0

Again the car had the nimbleness of a drunken elephant. Turning into apexes was very slow and laborious. The braking with both pressure test was no different.

I decided to take 2 clicks off my standard FFB setting. The car became much less of a chore to handle. Steering was responsive and although I was unable to hit my best times, I was 1.5 seconds closer than I was when I left the FFB where I normally keep it.

I have a feeling I will have to play with tire pressures ( I really don't want to change my FFB) to try to get the same feeling I had before.

My muscles ain't gonna keep trying to remember stuff if I keep having to change things.
 
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Okay, I have driven the 3 new cars at Hungaroring. Here are my findings (driven on the default aggressive setup).

So the Ferrari, I am a Ferrari guy. This car has speed. It's eager to turn, however if you ask it too much, it's not afraid to oversteer on exit. And that oversteer is quite twitchy. Still, I found it to be the easiest to get a quick lap with.

The Porsche, OMG, looks wild, sounds wild, and suits me like a glove. I couldn't get the lap I got with the Ferrari, but I would take this for the race distance. Can you get it loose? Yes, but I feel it's easier to tame back.

The Lambo, well, I was never a Lambo guy. I feel like this car's stock aggressive setup lacks the aggression. I found it very safe, too safe! Couldn't get a good lap time, but I am sure it's hidden in the setup screen somewhere.

By the way, all 3 cars felt unique with the FFB, Ferrari lightest, Lambo heaviest, and the 911 in the middle. Might be the... caster?

I also drove a lap around Valencia with the old 911. Wow it feels so different to the new 911! Heavy and twitchy. Anyways, I got lost at Valencia, which is great because finally a track I can (re)learn! Haven't driven it since... GTR2?

As for the pricing, 13EUR for three very detailed cars and 1 very detailed laser scanned track is... very competitive all things considered.

For now I just hope that with the planned GT2 pack we will also get some of the missing tracks. I would be happy to get Hockenheim which I love to drive, and Magny Course which I forgot how to drive, so it has the same appeal for me as Valencia!
"suits me like a glove" Ha!
 
Probably never, but it's possible with this very handy SimHub plugin by @Havner (that I guess gets updated to include the new cars at some point)
Great app and made a big difference when turning. Prior to installing I had no idea how much I was over turning.

Install instructions are a bit vague tho and took me a while till I finally got it installed in the proper folder and working.

Put in your Simhub folder.
Enable in Simhub.
In-game: set degree to 0

The .DLL goes in your Simhub folder in programs/x86.
When you launch Simhub a message box will pop up saying Havner acc steering plugin found....click the box to the right to enable it.

In-game: I could not find a steering degree setting, so I'm assuming you set steering rotation to 0 and it will automatically set the proper rotation per car.

I'm not sure if the app supports all wheels tho, it just says Thrustmaster and simcube wheels in the readme.
 
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Just tried the update and I love it! Being fairly new to using ACC, I would be curious to know what most users run their Traction Control on. I'm running average of 3 for most GT3 cars, but trying to reduce this. The other thing I don't know is how I calculate how much Nm on FFB I'm running. I have a Fanatec DD1, which I believe produces around 20Nm and in ACC I have Gain set to 60 or 65 and on my Fanatec base I have FFB at approx 35 to 40, so I don't feel I'm using high FFB Nm. Any ideas would be appreciated.
 
I can switch between rF2, AMS2, PC2, AC and drive fine, but this change in ACC is undriveable for me.
Might be setups need a little tweeking, 1st time out for me the rear end came around where normally I wouldn't have to worry about the back end. This will be a challenge.(1st thought is cold tires)
 
Premium
Can't roll my rig out until the weekend.

Are there any improvements to performance and image quality? Still massive weak points for ACC.
 
Once again, half done content with missing tracks, but at least it's cheap. This time there's no covid excuse, so I don't know why they keep missing tracks for an official game
The answer is simple, because there is not only GTWC Europe but also Asia, America and the British one and there are simply too many tracks to make and Kunos is not Turn 10 with hundreds of devs and they are also not creating the tracks simply from pictures or google maps data like for example SMS did for most tracks in PCars 2. Thats how they got so many.
Honestly i have no idea how you can hold this against Kunos, the tracks that are currently there are plenty for a racing simulator. Other than iRacing where you pay for one track or one car as much as you pay for this Kunos DLC there is no other sim with this kind of quality of content, both in terms of visuals and tech.
 
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Can't roll my rig out until the weekend.

Are there any improvements to performance and image quality? Still massive weak points for ACC.
Unless you mean VR (cant comment on that) i play the game maxed out in 4k with over 100fps and it looks crisp af to me.
 
May I ask what CPU/GPU you have? I'm in the process of buying a new computer.
i7 12700k/rtx 4090 but you dont need this kind of gpu because i turn dlss on and its basically locked at 4k max settings 160hz (my monitor max refresh rate) and the gpu sits only at 65% load, so you can get with dlss max settings in 4k 100fps with lower class gpus too.
i also recommend using dlss over standard-taa in this game, it just looks crisper and the reduction in image quality is to me at least non-existent.
 
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Why the cars only appear under Open Series, but is marketed as 2023 GT World Challenge? This is very confusing. I checked my files at first thinking the update didn't install correctly, since I saw not 2023 series tab...Does this mean they released a work in progress update or this is how it will stay?
 
Undrivable with SC2 Pro. Feels almost as bad as iRacing. If you like hoovercraft races, this is your game now. For everybody else, come over to AMS2...
Same here with SC2 Pro - If I was a conspiracy theorist I'd say Kunos have nerfed Simucube wheelbases in favour of their, and the GTWC, sponsor Fanatec.
 
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