AI Tyre Allocation

[Aysedasi]

Having come back from this years Le Mans I was really keen to finally run a 24 hour race. So I’m running in GT3 with the Mercedes. I’m just approaching half way and the night (I accidentally set my start time as 11 am instead of 4 pm). I also made another mistake, I set the tyre allocation to 48 instead of 60 so I’ve been triple stinting since the start. I have tyre wear on. But it’s clear that the AI drivers are not doing this, in fact having watched them closely through my last triple, from their out lap times they seem to be changing tyres at EVERY stop. And yet the leader (Lietz in the Porsche) is still running too fast for me to make any headway on him. So the question is a simple one - having set the tyre allocation for myself, do the AI have to live with that too? I’ve assumed they do and that they’ll soon be running into tyre difficulties having to reuse used tyres?

 

[Sparviero]

Check here https://community.lemansultimate.co...cars-endurance-racing-in-single-player.17882/
It seems the same problem of hypercars racing, AI just change tyres more frequently than player. So the first thing to do is do not allocate to much tyres (just use the same proportion of real life) then just turn on warm tyres. It doesnt reduce tyre turnover but minimize the time lost by AI after pit. For hypercars works quite well. Obviously you loss the gameplay relative to heat management after pitting but for me is better than messing AI performance.

 

[davehenrie]

Having come back from this years Le Mans I was really keen to finally run a 24 hour race. So I’m running in GT3 with the Mercedes. I’m just approaching half way and the night (I accidentally set my start time as 11 am instead of 4 pm). I also made another mistake, I set the tyre allocation to 48 instead of 60 so I’ve been triple stinting since the start. I have tyre wear on. But it’s clear that the AI drivers are not doing this, in fact having watched them closely through my last triple, from their out lap times they seem to be changing tyres at EVERY stop. And yet the leader (Lietz in the Porsche) is still running too fast for me to make any headway on him. So the question is a simple one - having set the tyre allocation for myself, do the AI have to live with that too? I’ve assumed they do and that they’ll soon be running into tyre difficulties having to reuse used tyres?

There are several threads about this, the work-around seems to be to turn off tire wear. That is a huge give-away so hopefully one of these next Quality of Life drops will address this issue.

 

[Aysedasi]

I thought I'd read that for shorter races, you needed to turn off tyre wear, but for long races, you should leave it on? It just seems completely pointless running a 24 hour race with no tyre wear.... What is puzzling me more and more, having got 13 hours in now, is that the GT3s are definitely taking tyres at every stop. You can clearly see it when you look at the time for their first lap out of the pits. We've done something like 18-19 stints and if tyres are being changed every stint, that's 72/76 tyres - with 11 hours still to go. So the AI must already be changing to used tyres at every stint and soon they'll have to employ tyres that have done two stints already. I still have 5 unused sets left. I'm running 2nd and the cars in 3rd and 4th are visibly slowing towards the end of their stints, but the leader seems to be suffering very little reduction in pace and is incredibly consistent, despite all the lappery by Hypers and P2s.

 

[aaron0288]

It’s something I really hope they’re working on for the upcoming career mode. It’ll all be for nothing as far as I’m concerned if they don’t sort the multitude of AI issues that have plagued the endurance aspect of them.

 

[ndslpsp]

I thought I'd read that for shorter races, you needed to turn off tyre wear, but for long races, you should leave it on? It just seems completely pointless running a 24 hour race with no tyre wear.... What is puzzling me more and more, having got 13 hours in now, is that the GT3s are definitely taking tyres at every stop. You can clearly see it when you look at the time for their first lap out of the pits. We've done something like 18-19 stints and if tyres are being changed every stint, that's 72/76 tyres - with 11 hours still to go. So the AI must already be changing to used tyres at every stint and soon they'll have to employ tyres that have done two stints already. I still have 5 unused sets left. I'm running 2nd and the cars in 3rd and 4th are visibly slowing towards the end of their stints, but the leader seems to be suffering very little reduction in pace and is incredibly consistent, despite all the lappery by Hypers and P2s.

Where did you get the idea of used tires? You're overthinking it. They have nothing to do with tire restrictions—they just keep putting on new ones. At the moment, for single‑player endurance racing, you can only go with rF2—that game gets tire wear absolutely right."

 

[ndslpsp]

It’s something I really hope they’re working on for the upcoming career mode. It’ll all be for nothing as far as I’m concerned if they don’t sort the multitude of AI issues that have plagued the endurance aspect of them.

It's all problems they created by messing around with the game themselves. The game engine itself doesn't have tire wear issues—everything was originally reasonable

 

[Aysedasi]

Where did you get the idea of used tires? You're overthinking it. They have nothing to do with tire restrictions—they just keep putting on new ones. At the moment, for single‑player endurance racing, you can only go with rF2—that game gets tire wear absolutely right."

Well, that theory works, to an extent. Yes, I realised they were putting on tyres at each stop only after a few hours. I've been triple stinting mine since near the start and with just over 5 hours to go, I've just done stint one on a new set and I have two new sets left. Not bad out of only 12 sets. Up until the 6 hour mark, I was just keeping pace with the leader (Lietz in the Porsche) but he was about a minute ahead. I then accidentally flipped off the limiter as I came into the pits and got a S&G which should really have ended my challenge for the win. About half a stint later Lietz came in - and he has come into the pits every lap since and is now almost two laps behind me. But they're not all doing it. Of the top 8, four cars are pitting every lap, while the other 3 (not including me of course) are still driving normally albeit that their pace is 3-4 seconds a lap slower than mine. I just assumed from this that the AI drivers are 'directed' to pit when the tyres are worn to a certain degree. They come in, put their best set on, but they're just as bad, so they come in again and - and so on and so on. Of course it ruins the race which is a shame when you've driven for 18/19 hours. Turning tyre wear off is not a solution as that's also a total immersion breaker. But I suppose you might at least get a proper race.

So yes, it's broken - which is a damning thing to say for a Le Mans 'simulator'.

 

[ndslpsp]

Well, that theory works, to an extent. Yes, I realised they were putting on tyres at each stop only after a few hours. I've been triple stinting mine since near the start and with just over 5 hours to go, I've just done stint one on a new set and I have two new sets left. Not bad out of only 12 sets. Up until the 6 hour mark, I was just keeping pace with the leader (Lietz in the Porsche) but he was about a minute ahead. I then accidentally flipped off the limiter as I came into the pits and got a S&G which should really have ended my challenge for the win. About half a stint later Lietz came in - and he has come into the pits every lap since and is now almost two laps behind me. But they're not all doing it. Of the top 8, four cars are pitting every lap, while the other 3 (not including me of course) are still driving normally albeit that their pace is 3-4 seconds a lap slower than mine. I just assumed from this that the AI drivers are 'directed' to pit when the tyres are worn to a certain degree. They come in, put their best set on, but they're just as bad, so they come in again and - and so on and so on. Of course it ruins the race which is a shame when you've driven for 18/19 hours. Turning tyre wear off is not a solution as that's also a total immersion breaker. But I suppose you might at least get a proper race.

So yes, it's broken - which is a damning thing to say for a Le Mans 'simulator'.

In short, this game's single-player mode is essentially just a sprint race game. The AI opponents' so-called tire wear, fuel allocation, energy management, pit stop strategies, and the like are only presented in the UI—in actual practice, they have almost no effect at all. They're all useless gimmicks. But the AI's conservative driving style makes it unsuitable for sprint races either, so it's a dead end—they've given up on single-player! Go play online—that's their unspoken command. I'll boldly predict that even when the career mode launches, it will most likely be just a pile of useless UI elements. They won't address a single one of the core endurance racing issues.Oh, and let me tell you why he pits every lap—it's because you have damage turned on. He accidentally gets damaged, goes back to repair, and then pits every single lap. Yes, endless repairs. Don't ask me how I know… I've been playing sprint races for a whole year—single class, no tire wear, no damage—until I met rF2 and realized that LMU isn't even qualified for sprint races.

 

[ndslpsp]

Well, that theory works, to an extent. Yes, I realised they were putting on tyres at each stop only after a few hours. I've been triple stinting mine since near the start and with just over 5 hours to go, I've just done stint one on a new set and I have two new sets left. Not bad out of only 12 sets. Up until the 6 hour mark, I was just keeping pace with the leader (Lietz in the Porsche) but he was about a minute ahead. I then accidentally flipped off the limiter as I came into the pits and got a S&G which should really have ended my challenge for the win. About half a stint later Lietz came in - and he has come into the pits every lap since and is now almost two laps behind me. But they're not all doing it. Of the top 8, four cars are pitting every lap, while the other 3 (not including me of course) are still driving normally albeit that their pace is 3-4 seconds a lap slower than mine. I just assumed from this that the AI drivers are 'directed' to pit when the tyres are worn to a certain degree. They come in, put their best set on, but they're just as bad, so they come in again and - and so on and so on. Of course it ruins the race which is a shame when you've driven for 18/19 hours. Turning tyre wear off is not a solution as that's also a total immersion breaker. But I suppose you might at least get a proper race.

So yes, it's broken - which is a damning thing to say for a Le Mans 'simulator'.

I posted about this long ago—if you want to play the Le Mans 24 Hours, first you need to tell all the AI to get lost, then open your phone and play the full Le Mans race broadcast, start a single‑player race at the same time, and sync the game's time with the video's time. Yeah, although it sounds a bit ridiculous, it's the best solution. Trust me

 

[Aysedasi]

Oh, and let me tell you why he pits every lap—it's because you have damage turned on. He accidentally gets damaged, goes back to repair, and then pits every single lap. Yes, endless repairs. Don't ask me how I know… I've been playing sprint races for a whole year—single class, no tire wear, no damage—until I met rF2 and realized that LMU isn't even qualified for sprint races.

Actually - I don't. For this race, I turned it off. And just as well, I've been rear-ended time and time again by the AI drivers lapping me and LMP2 spinners at Tertre Rouge collecting me. I knew it would happen and I just wanted to race. If I'd had it on I would have given up before the two-hour mark.

 

[ndslpsp]

Actually - I don't. For this race, I turned it off. And just as well, I've been rear-ended time and time again by the AI drivers lapping me and LMP2 spinners at Tertre Rouge collecting me. I knew it would happen and I just wanted to race. If I'd had it on I would have given up before the two-hour mark.

Buddy, if your AI aggression is set to High, getting crashed into is inevitable. Aggressive overtaking doesn't suit endurance racing. Turn it down to Low and start again. More importantly, before you start the race, lower the AI fuel multiplier in the settings file – to about 0.85 or so. In long races, the AI will save more fuel than you do under normal driving, and they'll make fewer pit stops, which lets them beat you on total laps completed. And yes, you don't need to turn off tyre wear and play an unrealistic, boring race – the time the AI wastes on tyre changes at every pit stop is offset by the fuel they save, because they get to stay on track longer. Trust me, this is the only way to get a relatively balanced experience against the AI in single‑player endurance racing right now. After all, endurance racing isn't about the momentary position or speed – it's about the total distance covered over the full 6 hours, and that distance is strongly tied to the fuel multiplier. You can tweak it so the final result matches your own skill level

 

[davehenrie]

We have had advice here for BOTH increasing the AI Aggression, and also reducing the Aggression setting.
Best I can offer is to experiment with both until you find some value of aggression that causes the least amount of pain for your offline racing.
Don't just jump into a 6 hr event and then have repeated collisions. Test, test test. Only then should you begin a race you want to see to the end.

 

[Metzger]

We have had advice here for BOTH increasing the AI Aggression, and also reducing the Aggression setting.
Best I can offer is to experiment with both until you find some value of aggression that causes the least amount of pain for your offline racing.
Don't just jump into a 6 hr event and then have repeated collisions. Test, test test. Only then should you begin a race you want to see to the end.

From what I found so far low the aggression just make them stuck more in trains, especially same class blue flags.. Faster class take you out because they often commit to closing gaps or too small gaps, and once they commit to overtake, you better move out as they completely forget about your presence. I managed to finish 10 hours of Quatar with LMGT3 and very little issues with traffic hitting me, but it takes some special attention on how you open/close gaps for AI to pass.

However, they suffer for so many other issues. Some cars, I don't know why, were cruising very slow around the track even hypers will just drive 30km and be many laps behind.

They pit way too often, so you will win on pit stops every day.
Some cars including P2 started pitting every lap or so for the last 30 minutes..

On another race on wet, all AI cars started pitting for no apparent reason while still on 50% energy.

Currently AI is a complete useless mess, and sadly no current racing sim offer a good package form single player

 

[ndslpsp]

From what I found so far low the aggression just make them stuck more in trains, especially same class blue flags.. Faster class take you out because they often commit to closing gaps or too small gaps, and once they commit to overtake, you better move out as they completely forget about your presence. I managed to finish 10 hours of Quatar with LMGT3 and very little issues with traffic hitting me, but it takes some special attention on how you open/close gaps for AI to pass.

However, they suffer for so many other issues. Some cars, I don't know why, were cruising very slow around the track even hypers will just drive 30km and be many laps behind.

They pit way too often, so you will win on pit stops every day.
Some cars including P2 started pitting every lap or so for the last 30 minutes..

On another race on wet, all AI cars started pitting for no apparent reason while still on 50% energy.

Currently AI is a complete useless mess, and sadly no current racing sim offer a good package form single player

You're absolutely right. If the race is long enough and the AI aggression is set to low, the lapped cars will struggle to get out of the way and end up forming a massive train. What a dull and laughable race.
You have to turn off tire wear, car damage, and rain. Then, regardless of race length, it'll all work out for you. The AI stops being dumb and becomes a real challenge, and every bug you talked about will just vanish... because they're building an arcade racer, not a sim

 

[ndslpsp]

rFactor 2 also suffers from excessive AI tyre wear, with their tyre degradation rate roughly three times that of the player. Disabling tyre wear drastically boosts the AI's lap times. Additionally, the AI never start races with full fuel tanks; they are forced to make pit stops for refuelling even in short-distance races, and their fuel calculation only functions correctly when the race length is set to 100% of the full schedule.Besides, they change tyres every single pit stop, which is identical to the behaviour in Le Mans Ultimate."It seems this is an inherent issue with the game engine and hard to change.