Nicki Thiim takes the Porsche 911 cup car for a spin.. AC, Iracing and R3

Not sure what RR has done with brake physics since the Simbin days but in ISIMotor2 the brakes warm up as you brake and become more effective.

 

Wow, calm down, it was just a simple question. No need to react like that. It's not good for your heart.

 

For me tires are the most important thing. That’s why I spend most of my time in AC of all the sims I drive. He does have a point when it comes to iRacing chassi dynamics though. They feel very nice, especially over curbs. Their transmission modeling on sequential race cars also feel very nice.

The cup car in AC has ABS so that might be why he didn’t notice.

 

It's not just the overheating stuff but sidewalls. Steering response with iRacing tyres in general is rubbish. Cars are floating like boats.

 

I don't get it. How can someone actually feel if a race sim has a good realistic chassis dynamics? Is it a visual thing when watching the replays or is it how the car visually behaves when taking high curbs or how the car reacts during racing?
It's not that you are actually inside the car. And I wonder if a motion platform/chair translate these chassis dynamics realistically.

I understand that you can feel if the brakes, physics engine and tire model is realistic or not but the chassis dynamics.

 

AC is a little insensitive on unevenness of the road surface and curbs.
(it got much better than before)
I felt that The detail of the AC track surface is poor compared to iracing.
But when I drove at the track converted to rfactor2,I noticed that there is fine detail.
I think that it is difficult to notice detail due to low behavior change on unevenness of the road surface.
Relatively,I am not afraid to ride on curb of AC.

 

I think the visuals your brain take in regarding car behaviour trick the brain into thinking it's a feeling, which proper sim immersion should do in any case.

 

That's the thing where AC's tyres (I guess) are quite clearly worse than those in iR, rF2, Automobilista and pCars2. The one thing I'm expecting to see some improvements in ACC.

 

Simvibe helps a lot with that.

 

I Can safely assume you've never tried a properly setup up motion rig.

 

AC has equally as detailed physical mesh as Iracing does. Motion makes this CLEAR as Day.

 

Sorry, can't agree with that as track surface details is where AC truly shines comparing to everything else, at least on DD, I would assume lesser wheel can compensate by bumping up Road Surface effect.

 

I think thats not tires, but something with suspension, when the car is in very funky moments. I like suspension more in iR, and tires more in AC. AC feels like at one time there is front and rear of the car, or left and right side of the car. And in iR it is more like whole four corners of the car at the same time... I don't know maybe thats how I should put words... But AC is just way way more natural to drive essentially IMO, because tires I suppose, way better feel to go fast to me. You can feel how you are getting better, and in iR it is just somehow same all the time, Thiim put it well.

 

If you want to say... How much does one have to part with to have a rig like yours at home?
I understand that it is cheaper than a real race car in the long run though

 

I think you misunderstood me. No details are missing. I'm talking about very different thing.

What I mean is that on uneven surfaces the contact patch feels like there's literally no elasticity but just tyre center line touching the surface which gives you very on/off behaviour over bumps. Elasticity is the key. Ability to mold around bumps and kerbs.

 

That was not very clear, to begin with. Probably @sedesa tatasa also had different thing in mind.

IMO tire elasticity is just damping, most of what you mentioned @Nahkamarakatti, I think, is mostly just visual stuff. Unless maybe you think about lateral tire flex feel, perhaps i would agree about that then.

 

It's not just a visual thing but for example how the car sticks into special corners like Karoussel. And especially how you can slingshot the car out from there.

 

Or how it doesn't stick at all in some situations - kerb of the death bug. While the bug was fixed however there seems to be remains of it with stiffer cars, where somtimes when you touch the kerb with rear tire it feels like touching a patch of ice.

 

Kerb of death when kerb has less grip is not a bug IMO

 

I don't know the specifics of why this is happening, however for example with GT3 cars sometimes when inside tire hits angled/elevated kerb there will be a sudden rear grip loss which will cause rear to slide instantly, this is not something I experience in rf2/iracing/pcars2 or at least not that pronounced. Kerbs in those sims also have less grip than tarmac.