Porsche 911 Carrera S and Nissan GT-R Nismo unbalanced

[Daxos]

This is more of a bug report than a discussion. The Porsche 911 Carrera S is unrealistically fast in a straight line. Not only is it almost on part with the 911 R and GT3 RS up to a certain point, it is on par with several other cars with higher power/torque and lower weight such as the Corvette Stingray. Please tone down the Carrera S straight line performance to a realistic level.

On that regard, please look at the weight and power figures you quote for the Nissan GT-R Nismo and use a calculator to double check. The car is certainly faster than it should be as well, and I believe this to be attributed to your incorrect weight vs power ratio.

Thanks.

[Tuna]

it really is in real life it's crazy fast now

[Daxos]

This game is all over with actual performance figures. Ever look at the Nissan GT-R Nismo figures? 1750KG weight at 592HP giving it a power to weight ratio of 2.28kg/hp? Well my calculator says it should 2.95kg/hp. AC cannot even get the data figures right, what makes you think the actual performance of the cars in game is real, especially because the GT-R drives as if it had a weight to power ratio of 2.95kg/hp even though this it not true in real life.

I also don't know why you call it crazy fast. Compared to what? Do you actually own any of the cars portrayed in the game in real life or where do you get your impression from?

[Talkie Toaster]

Originally posted by Daxos:

I also don't know why you call it crazy fast. Compared to what? Do you actually own any of the cars portrayed in the game in real life or where do you get your impression from?

I'm guessing you do?

Devs don't participate in these discussions, if you want to head over to the official forums and get into it with the devs they might respond.

Oh and the 911 S is actually faster in a straight line than a Stingray, just saying. (On paper at least).

[Drisq Kivuli]

Post some real numbers otherwise its just conjecture worthy to being filed in the bin. Better yet do the research and pose this question in the official forums bug report section if you truly believe the 911 performance is incorrect.

Obviously, considering that this is a simulator everything won't be exactly as it is in real life, the most we can hope for is reasonably close. Also, keep in mind that Assetto Corsa is a $30 piece of software not an industrial grade automotive racing and testing simulator.

[kazereal]

Originally posted by Daxos:

giving it a power to weight ratio of 2.28kg/hp? Well my calculator says it should 2.95kg/hp

Info-page stuff is irrelevant. That is not used in real-time sim itself.

Also when comparing stuff, check things like dry/wet (empty/full tank) weight, method of getting power ratio (crankshaft or wheels) and so on. Different sources will give you different values.

Regarding acceleration, torque is more important than peak horsepower and turbo-charged engines are not good on lower revs.

[Drisq Kivuli]

Comparing the Carrera S to the 911 R using the top lap times at radiator champs, I've observed that the 911 R Nordschleife time is 7:20.258 compared to the Carrera S which is 7:38.415.

At Nurburgring GP the Carrera S clocks a 2:16.762 while the 911 R has a time of 2:13.010

Carrera S at Imola, 1:57.795 vs. the 911 R at 1:54.824.

The 911 R is vastly faster than the Carrera S. Perhaps with your driving style the two cars are more closely matched although the numbers posted by aliens clearly indicate otherwise. The R is lighter than the Carrera S (by about 200 pounds) and has 80 more HP. 911 R chassis is a bit stiffer than the Carrera S, which for some could translate into a more challening driving experience.


Comparing lap times between the Carrera S and Corvette C7 is a bit more difficult as the C7 until recently was still on the v.7 tyres where as Porsche has on v.10 since its release.

Although several lap time comparisons between the Carrera and C7 were very close even with the C7 on the older tyre model.

At Mugello the C7 clocks at 2:07.466, Carrera S 2:08.097

At Monza the C7 best time is 2:03.888, Carrera S 2:03:738

Brands Hatch GP, C7 time is 1:37.515, Carrera S 1:38.307

Black Cat County, C7 time is 2:29.481, Carrera S 2:31.605

Red Bull Ring GP , C7 time 1:43.105, Carrera S 1:43.278



What's your preferred car in Assetto Corsa ?

[Mr Crisp]

Originally posted by Daxos:

This game is all over with actual performance figures. Ever look at the Nissan GT-R Nismo figures? 1750KG weight at 592HP giving it a power to weight ratio of 2.28kg/hp? Well my calculator says it should 2.95kg/hp. AC cannot even get the data figures right, what makes you think the actual performance of the cars in game is real, especially because the GT-R drives as if it had a weight to power ratio of 2.95kg/hp even though this it not true in real life.

I also don't know why you call it crazy fast. Compared to what? Do you actually own any of the cars portrayed in the game in real life or where do you get your impression from?

Dry weight or kerb? Because you know, it makes a big difference. The dry weight of the La Ferrari is on paper as 1220kg- kerb with all the fluids? AHAHAHAH Try near 1500kg.

So, dry or kerb weight? And what data have you collected of this `bug` that you think exists so it can be tested and proven/dosproven by the developers or reproduced- no data?

Let us know when you have the appropriate data and not just `seat of your pants data`.

Your `opinion` vs Kunos manurfacturer data and on-track test...

[Daxos]

Apologies for the late reply to the thread. I had forgotten I had posted this.

Yes, I actually do own or owned several of the cars in AC. Currently I own a modified 2016 BMW M4. Before that, I had a 2012 Comp pack BMW M3. Sheer straight line speed between the two cars are not even comparable. Just youtube some videos if you don't believe me. Yet in the game they're pretty much on par, and even the performance numbers and dyno delta of the M4 is completely incorrect. Just look at some actual dyno shee

I'm surprised there are so many people "defending" the performance of certain cars being all over the place. This is supposedly a "simulator", yet I see little evidence of accurately simulating the cars in the game. That is something I would expect in a game like Forza which has 500+ cars. AC doesn't have anywhere close to that number, and there's no reason there shouldn't have been proper research to not only accurately reflect the tracks but also the cars.

PS: I suppose I'm also in the minority here for expecting the AI to have realistic top speeds in the cars, yet I often see MX'5 and the like reach speeds of around 175mph, which is totally ridiculous given the low amount of horsepower of certain cars and the drag at those speeds.

Kazereal: Contrary to your statement, horsepower IS important for acceleration. The faster you go the less torque and weight matters and the more horsepower and drag comes into effect.

Nakadai and Mr Crisp: I'm not going to spend hours posting the actual car data. It's out on the web for everyone to see and I've figured it would be pretty obvious to most people that some car performance figures are all wrong.
Sure, magazines post different times given different weather conditions, tires, drivers and everything else that affects a cars performance.
That's still no reason to have certain cars perform completely off the chart of what actual owners of the cars or magazines who test them report. And that doesn't have anything to do with the price of the game.

My favorite cars? The 911.1 R and F40.

[Drisq Kivuli]

>PS: I suppose I'm also in the minority here for expecting the AI to have realistic top speeds in the cars, yet I often see MX'5 and the like reach speeds of around 175mph, which is totally ridiculous given the low amount of horsepower of certain cars and the drag at those speeds.

Video or it didnt happen, haha. What tracks are you seeing the A.I. reach 175mph ? Are you confusing km/h with mph ? Max speed the A.I. achieve at Monza is 196 km/h or 121 mph.



>Nakadai and Mr Crisp: I'm not going to spend hours posting the actual car data. It's out on the web for everyone to see and I've figured it would be pretty obvious to most people that some car performance figures are all wrong.

Post hard data. PERIOD. I posted alien lap times from RSR proving that the Carrera S is nowhere near as quick as the 911R. You? Not so much. You start a discussion, making claims about inaccuracies in Assetto Corsa then you're too lazy to prove your point? BWAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHAHAHAHA


>My favorite cars? The 911.1 R and F40.

Cool ! 911R is a great car although the GT3 RS is my preference. F40 has a grand legacy and lots of respect. I never understood all the acolades it recieves. Ferrari 458 IMHO is the best handling car Ferrari has made to date.


If you believe there is an issue, post it in the official forums. Either it will get fixed or you will get schooled.

What track are you seeing the AI in the MX5 (Cup ?) reaching 175mph ?? Official track or mod track ? Do you have a video of this ?

[CPT. Doc]

You should record video of your findings, would make this a whole lot easier.

[Daxos]

Just for the sake of it I just drove the Highlands Long track again in a BMW M4. The top speed I reached and maintained for a short while 305mkh or 190mph. This was at the far end of the straight and not on the slope. I know for a fact an unmodified M4 does not go that fast, even with the removal of the governor.

If I find some time I'll try to post a video of similar instances sometime this week.

[Drisq Kivuli]

I was able to reach 185 in the stock M4 on a single run on cold tyres at 100% grip. Clearly something is amiss.Perhaps there isn't a speed limiter on the cars in AC.


BMW M3 F80 - Top Speed 304kmh -189mph without limiter

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

[Drisq Kivuli]

Regarding your original post..


http://www.caranddriver.com/comparisons/2014-chevrolet-corvette-stingray-z51-vs-2014-porsche-911-carrera-s-comparison-test-final-scoring-performance-data-and-complete-specs-page-4

Stingray vs. Carrera S

0–30 MPH 1.7 sec 1.6 sec
0–60 MPH 4.0 sec 4.0 sec
0–100 MPH 9.2 sec 9.3 sec
0–150 MPH 23.2 sec 22.8 sec

¼-Mile @ MPH 12.5 sec @ 116 12.4 sec @ 116

Performance is virtually identical. The Carrera S is correct in AC compared to the Vette.

[discombobulated1]

just so you nol the numbers are a rough guide you can get 10 cars from the same production line all with different HP

[Mr Crisp]

Originally posted by Nakadai:

I was able to reach 185 in the stock M4 on a single run on cold tyres at 100% grip. Clearly something is amiss.Perhaps there isn't a speed limiter on the cars in AC.


BMW M3 F80 - Top Speed 304kmh -189mph without limiter

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

Yes, the cars are `de-limited` in AC. Who the heck wants to get to 155mph and run out of puff or in the case of a ♥♥♥ car like the Skyline, limited 112mph would be ridiculous.

The m3 can indeed push near 180mph+ given good conditions- but delimited, a BMW even a 540 will push past 155mph with ease.