Assetto Corsa | News and General Discussion

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Wiz
1.11.0 Changelog

- Porsche 962C Long Tail now has passive wastegate pressure map that permits user controlled overboost as a % of a turbo boost map. 0-9 keys
Click to expand...

Okay...I was wondering what the heck this is all about. This is taken from the official forums.

Some guy named Stefano explains:
It's a small difference but important. Turbo controllers work on the "max boost" value while cockpit adjustment work on the wastegate valve. The two don't really mix well together as a low user setting would "cut" the boost at a certain point. By moving the controller to work on the wastegate as well the cockpit adjustment.. the latter becomes like a multiplier so the behavior is still fully dynamic.
It was basically done for that single car.
 
ALB123
Okay...I was wondering what the heck this is all about. This is taken from the official forums.

Some guy named Stefano explains:
It's a small difference but important. Turbo controllers work on the "max boost" value while cockpit adjustment work on the wastegate valve. The two don't really mix well together as a low user setting would "cut" the boost at a certain point. By moving the controller to work on the wastegate as well the cockpit adjustment.. the latter becomes like a multiplier so the behavior is still fully dynamic.
It was basically done for that single car.
Click to expand...

Oh, clear as mud then. :odd:



(I have no clue what any of that means...)
 
I feel so blessed that I have over 2500 hours in this simulator, most of the time racing or having track days (using Content Manager) with the AI.
Because reading some of the post here, I could easely perceive that for someone like me, offline driver mostly into AI, Assetto Corsa is not for me.
Does the thing mentioned ever happen? Yes, exceptionally or in extreme scenario situation. Is it an issue if you are into enjoying your self? No.
Just felt like balancing the thread a little, as some time if I did not know better I would really wonder why so many people with so much dissatisfaction have any interest in Assetto Corsa.
Or maybe all they do them self is so perfect that any little imperfection in an otherwise very satisfying simulator needs to be posted over and over, since only perfection is acceptable.
I am far from perfect, my real life is full of compromise, I do not expect my virtual life to be any different, I will accept the best compromise I will find and will enjoy it. Silly me!
 
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I bet the new trailer is confusing to players who don't follow AC very closely. It's released alongside PPV3 but the footage has no clear indication what the new pack actually contains. It shows cars from all three packs, most of which are not currently on console, but it still has the balls to inform about availability on all three platforms. Poor move.
 
Cote Dazur
I feel so blessed that I have over 2500 hours in this simulator, most of the time racing or having track days (using Content Manager) with the AI.
Because reading some of the post here, I could easely perceive that for someone like me, offline driver mostly into AI, Assetto Corsa is not for me.
Does the thing mentioned ever happen? Yes, exceptionally or in extreme scenario situation. Is it an issue if you are into enjoying your self? No.
Just felt like balancing the thread a little, as some time if I did not know better I would really wonder why so many people with so much dissatisfaction have any interest in Assetto Corsa.
Or maybe all they do them self is so perfect that any little imperfection in an otherwise very satisfying simulator needs to be posted over and over, since only perfection is acceptable.
I am far from perfect, my real life is full of compromise, I do not expect my virtual life to be any different, I will accept the best compromise I will find and will enjoy it. Silly me!
Click to expand...
I haven't read anything overly negative here for a while. What things do you mean? Sounds like folk round these parts enjoy the game but we all are free to share any info on strange situations or niggles here and there or things that could be better. Head over to the official forums to read whinging and crying aplenty though.
 
BrandonW77
Oh, clear as mud then. :odd:



(I have no clue what any of that means...)
Click to expand...
Thank God someone replied...I read that thing 4 or 5 times and I still have no idea what that means. :lol: I'm thinking to myself, "There is no way someone can understand that" -- unless you are a certified mechanic or something...or, if you speak Stefano, which I clearly don't.

Cote Dazur
I feel so blessed that I have over 2500 hours in this simulator, most of the time racing or having track days (using Content Manager) with the AI.
Because reading some of the post here, I could easely perceive that for someone like me, offline driver mostly into AI, Assetto Corsa is not for me.
Does the thing mentioned ever happen? Yes, exceptionally or in extreme scenario situation. Is it an issue if you are into enjoying your self? No.
Just felt like balancing the thread a little, as some time if I did not know better I would really wonder why so many people with so much dissatisfaction have any interest in Assetto Corsa.
Or maybe all they do them self is so perfect that any little imperfection in an otherwise very satisfying simulator needs to be posted over and over, since only perfection is acceptable.
I am far from perfect, my real life is full of compromise, I do not expect my virtual life to be any different, I will accept the best compromise I will find and will enjoy it. Silly me!
Click to expand...
Well said. I don't think I've ever had a session where I wasn't completely satisfied. I've also made many comments that I must be pretty lucky because I only very occasionally experience any AI cars running trains. I hear it reported often, and I don't like to accuse anyone of lying unless I have proof...but it is a very rare occurrence for me.

99.999999% of my AC time is solo action or with the AI and besides my own crappy driving, I'm very rarely interrupted by any actual problems. And now I must leave you all...there is a 911 Turbo S idling in the Pits of Nurburgring. I shall return when I run out of gasoline or my car is on its roof & on fire.
 
Just need a late 60s/early 70s version of Le Mans and all the other WSC tracks now.
 
Cote Dazur
Or maybe all they do them self is so perfect that any little imperfection in an otherwise very satisfying simulator needs to be posted over and over, since only perfection is acceptable.
I am far from perfect, my real life is full of compromise, I do not expect my virtual life to be any different, I will accept the best compromise I will find and will enjoy it. Silly me!
Click to expand...

Just because I note that the AI has issues means only absolute perfection is acceptable? No, far from the truth. But it's an issue that greatly limits my enjoyment of what the sim offers and it's perfectly fair to desire improvement in that area (and it's not exceptional or rare in my experience, it's quite common). For someone looking in from the outside wondering if they should buy the game, IMO it's very important to point out weak points as well as strong points and not just sing loudly about the strong points. AC has a lot of strong points but it also has a lot of weak points, it's only fair/honest to point out both sides to a prospective buyer.

Not sure why it's difficult to understand that a person can really enjoy something but still want it to be better? Just because we criticize an aspect doesn't mean we're saying the whole game is crap or that nobody should buy it. I mean, I have a 2017 WRX that I absolutely love, most favorite and fun to drive car I've ever owned by a long way. It has a crappy stock engine tune that limits its performance and the hill launch assist has to be deactivated because it's too grabby (even on relatively flat surfaces) but I still love the thing to pieces and would buy it again in a heartbeat despite those issues. Same with AC, there's a lot of things I like about it, some things I don't like, some things I hope will improve, but I still rush home from work every day to turn some laps. I don't think I'd do that if I only accepted absolute perfection from a game.
 
Someone asked about the differences in the Porsche 919's (2015 & 2016) and if the 2016 was slower than the 2015.

Aristotelis answered:

Yes, the 919 2016 has restrictions in the fuel economy that make the ICE engine less powerful and more importantly, restrictions to the electric motor that can't go over 300KW (around 400bhp) on the LeMans version we are simulating.
For the same reasons the electric energy deployment is different, they try to deploy as much as possible from low speed and cap it from above 260kmh or so... The aero package is more efficient too, with less drag for more or less the same downforce. Some extra differences in the suspension geometry make so that the car can use the front engine sooner and with more aggressive deployment.
 
BrandonW77
Just because I note that the AI has issues means only absolute perfection is acceptable? No, far from the truth. But it's an issue that greatly limits my enjoyment of what the sim offers and it's perfectly fair to desire improvement in that area (and it's not exceptional or rare in my experience, it's quite common). For someone looking in from the outside wondering if they should buy the game, IMO it's very important to point out weak points as well as strong points and not just sing loudly about the strong points. AC has a lot of strong points but it also has a lot of weak points, it's only fair/honest to point out both sides to a prospective buyer.

Not sure why it's difficult to understand that a person can really enjoy something but still want it to be better? Just because we criticize an aspect doesn't mean we're saying the whole game is crap or that nobody should buy it. I mean, I have a 2017 WRX that I absolutely love, most favorite and fun to drive car I've ever owned by a long way. It has a crappy stock engine tune that limits its performance and the hill launch assist has to be deactivated because it's too grabby (even on relatively flat surfaces) but I still love the thing to pieces and would buy it again in a heartbeat despite those issues. Same with AC, there's a lot of things I like about it, some things I don't like, some things I hope will improve, but I still rush home from work every day to turn some laps. I don't think I'd do that if I only accepted absolute perfection from a game.
Click to expand...
Brandon, i would have named you if I intended the post to you, I did not, I would even have pm you since I consider you asa friend, pointing the good and bad in reply to another asking advice works for me.
Constantly and repetitively pointing to what could be better as many do here is one sided
 
Cote Dazur
Brandon, i would have named you if I intended the post to you, I did not, I would even have pm you since I consider you asa friend, pointing the good and bad in reply to another asking advice works for me.
Constantly and repetitively pointing to what could be better as many do here is one sided
Click to expand...

👍 I do try to refrain from harping on the negatives because it doesn't accomplish much and there's still plenty to enjoy. I do think a few key, "simple" additions and/or changes could dramatically transform the sim for the better, but one stressed out and over-worked guy can only do so much (I should know) so who knows if/when they will happen. I hope we will see some of these improvements sooner than later, in the meantime I just enjoy what's on offer. The day the AI can sort out slower traffic will be a glorious day full of track days and multi-class racing at my house. Today will be a glorious day of wringing out the 911 Cup around a multitude of tracks as well as channeling my inner Steve McQueen around Le Mans. :D
 
I'll tell you what put a smile on my face in the game today, at that was when driving the MP4 12C road car (which I surprisingly enjoyed driving way more than the GT version); as the engine gets to high revs, the noise it makes sounds like a bass guitar played with distortion on it. It was great!

This probably isn't a normal thing to notice, but I do like a distorted bass guitar.
 
So, regarding boost control.

I'm going to explain some things about the way a turbo works and is controlled, most of you will already know this but there will be people that don't so I'll include some basics too.

The way a turbo works is that the exhaust from the engine goes through a turbine (the exhaust side of the turbo) then out the exhaust. This spins the impeller wheel. The impeller and compressor wheel in the compressor side of the turbo are connected via a sealed shaft so that they spin at the same time. So, simply put, the more exhaust flow there is the more boost you get (there's more to it, like turbo efficiency ranges and turbo lag but I'll leave that out for this).

The way that the boost is controlled is by the wastegate. This is either internal (within the casting of the turbo) or external (a separate valve in the manifold before the turbo). Basically the wastegate diverts exhaust straight out the exhaust rather than through the turbine in order to limit the boost generated by the turbo.

The waste gate is opened and closed with an actuator, which has a diaphragm and an internal spring which is either set to an exact pressure or adjustable by adjusting the preload on the spring.

The actuator is feed a boost line from the compressor, so as boost pressure increases, this presses on the diaphragm. When it is enough to overcome the spring pressure the waste gate opens and diverts the exhaust, limiting the boost. As the boost drops, the pressure in the diaphragm drops and it can't overcome the spring any more so it closes the waste gate, allowing the turbo to make boost again.

The wastegate isn't either fully open or fully closed, it can be open just a little bit depending on how much pressure is in the actuator.

You can control the boost even further than this by fooling the wastegate actuator in to seeing less boost than there is. This is how an electronic boost controller works. It controls a solenoid valve that is connected in the line between the compressor and the wastegate actuator. You set what boost pressure you want and it controls the duty on the solenoid valve as necessary to maintain that pressure.

When using electronic boost control you can get a much faster spool, as you can completely close off the boost supply to the actuator, so the wastegate remains fully shut and the turbo builds boost fast. When the boost level starts to reach set point the solenoid valve starts to open which builds pressure in the actuator which opens the wastegate. You also have the ability to give the boost a more gradual build by controlling the duty on the solenoid to allow a little bit of boost to the actuator to allow it to open slightly. You get a lot of control with good electronic boost control.

What AC does in regards to boost control though I don't know, however is seems as though the adjustment they are talking about is the wastegate actuator spring setting. Perhaps my explanation may help to work out his explanation though. :dunce:
 
Punknoodle
So, regarding boost control.

I'm going to explain some things about the way a turbo works and is controlled, most of you will already know this but there will be people that don't so I'll include some basics too.

The way a turbo works is that the exhaust from the engine goes through a turbine (the exhaust side of the turbo) then out the exhaust. This spins the impeller wheel. The impeller and compressor wheel in the compressor side of the turbo are connected via a sealed shaft so that they spin at the same time. So, simply put, the more exhaust flow there is the more boost you get (there's more to it, like turbo efficiency ranges and turbo lag but I'll leave that out for this).

The way that the boost is controlled is by the wastegate. This is either internal (within the casting of the turbo) or external (a separate valve in the manifold before the turbo). Basically the wastegate diverts exhaust straight out the exhaust rather than through the turbine in order to limit the boost generated by the turbo.

The waste gate is opened and closed with an actuator, which has a diaphragm and an internal spring which is either set to an exact pressure or adjustable by adjusting the preload on the spring.

The actuator is feed a boost line from the compressor, so as boost pressure increases, this presses on the diaphragm. When it is enough to overcome the spring pressure the waste gate opens and diverts the exhaust, limiting the boost. As the boost drops, the pressure in the diaphragm drops and it can't overcome the spring any more so it closes the waste gate, allowing the turbo to make boost again.

The wastegate isn't either fully open or fully closed, it can be open just a little bit depending on how much pressure is in the actuator.

You can control the boost even further than this by fooling the wastegate actuator in to seeing less boost than there is. This is how an electronic boost controller works. It controls a solenoid valve that is connected in the line between the compressor and the wastegate actuator. You set what boost pressure you want and it controls the duty on the solenoid valve as necessary to maintain that pressure.

When using electronic boost control you can get a much faster spool, as you can completely close off the boost supply to the actuator, so the wastegate remains fully shut and the turbo builds boost fast. When the boost level starts to reach set point the solenoid valve starts to open which builds pressure in the actuator which opens the wastegate. You also have the ability to give the boost a more gradual build by controlling the duty on the solenoid to allow a little bit of boost to the actuator to allow it to open slightly. You get a lot of control with good electronic boost control.

What AC does in regards to boost control though I don't know, however is seems as though the adjustment they are talking about is the wastegate actuator spring setting. Perhaps my explanation may help to work out his explanation though. :dunce:
Click to expand...

I learned all I need to know about turbos from the Orangutan. :D

capture-d-ecran-2015-03-08-a-2-54fde6a5952f4.png
 
Thank you, @Punknoodle -- while I'm not going to pretend that I could now explain turbochargers to another as well as you have, it did clear up a couple of things I've always wondered about. So thank you for that. 👍 Unfortunately, I'm still a little confused as to what Stefano has done to the car. More importantly, I'm wondering why he did that for a single car. Now, perhaps he has ideas for the future and that I totally get.

Sometimes I really wish I knew a lot more about cars. :grumpy:

@BrandonW77 - If you're looking forward to the 911 GT3 Cup, let me tell you...I like you are going to be very, very pleased. Funny, I think it was just a day or two ago where I was saying something like, "do we really need all of these 911 racers?!" To be honest, I was kind of talking about the 911 GT3 Cup. The 911 GT3 R makes sense -- Assetto Corsa is like a GT3 lover's wet dream. And the new 911 GT3 RSR pushed that engine all the way in front of the axle which is crazy when you think of 911s, so how could ya not want that?!

I've driven both the 911 GT3 R & 911 GT3 Cup. The GT3 Cup is pretty slick. :D The GT3 R is cool...I like the GT3 class, so it's always cool to add another one to the mix. The GT3 Cup is going to have a lot of miles on the odometer...

The 911 R is a really great drive. I enjoyed it much more than the 911 Turbo S which kind of bums me out. It's an awesome car, no doubt, but the 911 R has got it going on. Take the 911 R out for a spin first, then drive the 911 Turbo S. You feel that weight immediately. Hey, the cars were built with two different goals in mind. I would be quite disappointed if they drove identical.

I think I'll save the 919 & old school race cars for tomorrow.
 

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