Porsche gt3 cup Iracing vs AC

To put fire in the discussion, i have made my Cup sounds with recordings from the 997 GT3 Cup car but with "professional microphone". The microphone was placed somwhere in the middle of the car at drivers helmet height. I used this recording because the 997 had a different gearbox and less whine! So it´s a lot better than using engine samples with the whine included. The whine i used from a 991 Cup car.
My sounds are still a wip cause the gearbox whine is not final special in the lower speeds and it is still a compromise to real sounds, cause it differs from gear to gear.

iRacing sounds are very nice althought the whine is not perfect. It sounds strange off throttle sometimes. And the iRacing tire skid noise is annoying.

Can´t wait to hear some real recordings from the 2017 Cup car with the new 4.0l engine.

 

@Fonsecker: The 997's engine is quite a bit different in sound compared to the 991.2 Cup car.It uses the "Mezger" engine, while this one uses the updated DFI engine based on the original 991 GT3, the former has a more "throaty" engine note at mid-RPM and quite a nice mix of bass and high-notes at the top of its rev-range, while the newer engine has a much smoother sound, and with more "scream" at the top end.
For me the Kunos sound is quite okey, it's not mind-blowing, but most cars in AC aren't, they're nice.The iRacing sounds more realistic, I'll give it that, however as far as driving goes they seem pretty similar, maybe a touch too much understeer in iRacing as it was mentioned earlier.
(the 991.1 Cup car still had the Mezger engine btw)

 

The tyre noise arent the best indeed on iR. They are getting better in that they sound different depending on the kind of slip you have, but yeah... I've turned them down quite a bit in-game. In the video sounds are at default level IIRC.

 

Nice lap time in your video. What rear wing are you using?

 

Used 1, but 2 might be slightly faster overall. In the end it's pretty tricky to nail a lap either way and we're talking <1s here

 

I'm surprised no one posted yet..

 

He runs less than optimal grip in AC and then wonders why the lap times are slow.....

 

Eh, he did say they aren't the only benchmark, the cars do look very similar.I can't agree with his comments about the car in AC feels like it's mid-engined, you can really feel the rear bias when you go through fast chicanes or when the car unweighs and then you regain grip.I do like how iRacing handles suspension movement on kerbs though, it looks more realistic than AC where it does feel like it's crashing down when you're going up a kerb (or coming off for that reason).

 

I wouldn't do that either. Fast is pretty good preset for that kind of comparison. The thing I'm surprised he didn't talk is the camber which seems to be very different between the platforms.

 

I've only driven the AC version, but he is spot on about it having a 'pogo stick' bounciness about it. Not sure why he has a ten degree dead zone in his wheel though, maybe somebody should hook him up with a good minimum force setting for his wheel.
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How is 'fast' a good setting when it can vary several degrees every time you load it up; and several degrees worth of difference is worth a couple seconds a lap.

 

I think I know what he means by that "deadzone" and that's common for AMS, AC & rF2/Enduracers Porsches. Haven't driven the car in iRacing but according to EB the same thing applies for iR too. It's not pure deadzone but more like a dull centre..

 

I think he said in another video that he is using LUT for his wheel in AC so ffb deadzone shouldnt be the issue.

The part about fuel is interesting. Might be worth looking up for the guys at Kunos since the car in iracing uses more fuel. One of them have got it more right and one of them have got it more wrong.

 

You can't compare lap times around Imola on AC vs. AMS, because the AMS version has quite a few differences.

 

In Automobilista those kerbs look very forgiving, a lot of width added to the track, whereas in AC you'd slip and slide everywhere on Imola's kerbs.

 

Camber is still ded on iR. And the baseline set has too high pressures which worsen the outlap being fastest thing. Tyres get out of working range too fast.

Handling-wise it's fine tho. Remember that its a sim so sometimes numbers dont translate quite right, lol. Never driven a sim where fast setups (<1s) were 1:1 to real life. Altho with such a set the car still drives fine.

 

Didn't Aris mention a while (few patches) ago that Optimal is the proper real world setting now, not Fast? Depends on the track surfaces different from track to track anyway. Certainly if you go down with the temperatures to something more realistic for a lot of races (10-15°C) and then go Fast or lower it gets quite slippery for a race track.

 

I think V10 tyres with 97-98% is compareable to 95-96% on V7's.

But I think there was a sort of adjustment in one of the recent patches and Aris wrote that before that patch.

At least on the Street Fight servers there were quite some lap time improvements since late december/early january by several drivers and I don't just mean the 2-3 tenths you get from more sessions you do on a certain setup.

 

Easy there.

Matt says many times that he spent least amount of time in AC version.

Under optimal conditions in AC lap times are in low 1:45's with really fast drivers.

With fast conditions there were people in low 1:46's other day in multiplayer race I was in.


The main point of video is iRacing/AC/AMS version are really close.

This in general is good for simracing that technology/simulation is moving in the right direction.



Only thing that was odd is the fuel usage difference between iRacing and AC.


Maybe @Aristotelis can clarify ?

 

Wonky fuel usage seems to be a recurring theme tho, the Cup car isn't the only one to have (or have had) wild values there.