Tyre Pressure - A must for GT6?

[Stephanos82]

I know I'm not alone in the belief that Tyre Pressure has been one of the most important omissions in the GT franchise! Not wanting to compare with any other racing titles that may include it, my opinion is that, it is high time our beloved title got treated to tyre pressure adjustments! Do u support this idea?

 

[oink83]

I think it would be pretty sweet yeh. I do love the accessibility of the tuning in GT. You don't have to spend many hours to get a great tune, but it is an important factor and would be cool to see it in GT6.

 

[Griffith500]

What does it do?
I've only ever followed manufacturers' specs in real life, except on my bicycles (but I think that's a bit different...)

 

[oink83]

Lower pressure means 'squishier' tyres, so more of the tyre in contact with the road. Increase in overall grip, but also increase in tyre wear, and reduced speed in a straight line.

Higher pressure is just the reverse. Tyres are firmer, so less of the tyre against the road surface, lower grip, but less friction so faster in a straight line.

 

[RattijuoppoFIN]

it is high time our beloved title got treated to tyre pressure adjustments! Do u support this idea?

YES PLEASE!
Gimme gimme.
This is something that is so much needed as it makes a hell of a difference
when setting a car up.

 

[Griffith500]

Lower pressure means 'squishier' tyres, so more of the tyre in contact with the road. Increase in overall grip, but also increase in tyre wear, and reduced speed in a straight line.

Higher pressure is just the reverse. Tyres are firmer, so less of the tyre against the road surface, lower grip, but less friction so faster in a straight line.

Oh, so it's exactly the same as on a bicycle.

It's a fine tuning thing, I presume? Steering feel?
I doubt the contact patch size is that simple, so the tyre model would need to reflect that for any optimisation to be useful.

It's another thing to fiddle with, I guess, as long as it makes sense with the other options (like, maybe tyre size).

 

[Imari]

What does it do?
I've only ever followed manufacturers' specs in real life, except on my bicycles (but I think that's a bit different...)

If you ever go to a track day, you'll probably have it suggested that you raise your pressures from what you would use on the street. It holds the sidewalls up better when you're cornering hard, and gives your car a more direct feel.

When I'm driving to work I use the recommended 24psi in my tyres. When I'm on a track day or going for a blast in the hills on the weekend I use 32psi. It's a subtle but noticeable difference, especially when you're pushing hard.

Fiddling around with the tyre pressure can also improve the size of your contact patch, and affect the heating of the tyre. But it's almost always tradeoffs, so it's a more advanced technique. You need telemetry to really take advantage of that.

 

[Griffith500]

It's funny some of the stuff you "know" without realising it. Or is it that it just makes enough sense that I feel I should have known it?

Proper telemetry would be nice - GT3's was the best so far (went backwards since, for whatever reason), but we'd need a lot more data from the tyres, so the new model had better be up to it.

Now I'm going to be plagued by the "why"s of it all... Thanks, I think! 👍

 

[BrutherSuperior]

Lower pressure means 'squishier' tyres, so more of the tyre in contact with the road. Increase in overall grip, but also increase in tyre wear, and reduced speed in a straight line.

Higher pressure is just the reverse. Tyres are firmer, so less of the tyre against the road surface, lower grip, but less friction so faster in a straight line.

It's not that simple.

Lower tire pressure lowers the effective spring rate, the tire does act like a spring btw, and increases sidewall flex causing you to burn the outside edge just like positive camber. Both of these can adversely affect grip. R compound tires usually have very stiff sidewalls to compensate for these while road tires, which take into account comfort, are squishier.

People who autocross with street tires typically run higher pressures. There's not enough time to get heat in the tire and have the internal pressures rise from it.

The other side of the coin, extremely high pressures, can cause the tire patch to shrink b/c the tread balloons. If you have a stock car that has a geometry that gains a lot of positive camber, super high pressures can be used to counteract this and get more grip & better tire wear. I know nationally competitive racers who've run 60+ psi in Hoosiers to not burn the outside edges of the tire. I know others who have tried it and it was a horror show, so they went back to <30psi.

In a nutshell, tire pressures are a bit of a black art and should be tested/experimented on a case by case basis. There really is no "magic bullet" when it comes to cars since the suspension arc, tire construction, temp, alignment, etc. vary car to car and sometimes day to day.

 

[jgancherjr]

It's as simply as this: if tire pressure was adjustable we would not need the 3 variation of each tire. Therefore regulated races could not be regulated by the tires themselves properly without a lot of "new" game engineering..

 

[dr_slump]

It's as simply as this: if tire pressure was adjustable we would not need the 3 variation of each tire. Therefore regulated races could not be regulated by the tires themselves properly without a lot of "new" game engineering..

We wouldn't need it less.

 

[niky]

Lower pressures on street tires doesn't improve cornering at all. It helps make for more longitudinal grip, under braking or in terms of acceleration (which is balanced out by extra drag at higher speeds), but cornering response suffers, and once you've rolled over onto the sidewalls, whose rubber has less grip, you're not cornering as effectively.

For street performance tires, 35-40 psi is a pretty good starting point, then juggle up and down till you find what's right. Some police instructors like extra-high 50-60 psi pressures for performance, but this is because most cruisers are on pretty tall tires. Indeed, when I want to drive a car on balloons hard, I'm typically at 45 psi.

Tire pressure adjustment will not negate the need for different tire compounds. A car on high-mileage tires pumped up to 50 psi will still not corner as well as a car on UHP tires pumped to 30 psi.

 

[TexasTyme214]

Unless get live telemetry (see Shift 2), then I don't want to add many more parameters to tuning that would create a guessing game. Camber is already a coin toss.

 

[Stephanos82]

I have an Mx5 1994 1.8 I bought for about &#8364;2k just for track days! The car is amazing but the first thing that struck me is how differently the car behaves when you change the tyre pressure! And it's almost as easy to adjust as in a video game! You exit track after a few laps, you hook ready compressor at laps and voia! I have experimented with having 1.8 bar on both tyres, then 1.6 front, 1.8 behind and vice versa and it's amazing how a few bars of pressure induce or supress oversteer/understeer!
Personally I've come to like my car with a bit more pressure on both tires because IMO it nullifies the effect of the car hammering back suddenly when you lose grip!
Long story short, it'd be amazing to have that in GT6, driving my mx5 now in gt5 leaves a whole lot do be desired (CSR ELITE - G25 pedals)

 

[Feldynn]

As an extra tuning option I could it being great for those tuning nuts that are really into that level of fine tuning, for simple people like me I'd hope it comes with a sort of "easy" button a bit like the Custom Transmission has the "Top Speed" slider to allow basic adjustments or maybe some simple presets for each car.

With all the work it sounds like PD has put into the new physics engine / models I actually wouldn't be surprised if we do see some new tuning options available once the game is complete, not that I'm really expecting or counting on anything new in that regard though just keeping an open mind.

 

[scrambles175]

its fine to get the compressor out and just mess around to get good track times but in a race event you actually need tire temperature data to find that balance between getting good grip and destroying the tires

 

[Rage Racer]

If there is a really new tire phisics, the tire pressure adjustment just MUST BE in GT6.

 

[brycepunk]

As an extra tuning option I could it being great for those tuning nuts that are really into that level of fine tuning, for simple people like me I'd hope it comes with a sort of "easy" button a bit like the Custom Transmission has the "Top Speed" slider to allow basic adjustments or maybe some simple presets for each car...

This. If they don't make a dumbed-down version and I have to spend 30 minutes for each race going back and forth with telemetry and experiments just to compete...
I played a Nascar game years ago that had tire pressure adjustments but no real way to test without doing a couple laps. So it was add one pound in one tire, do three laps, then add one pound in another tire, then three laps. Race set-up could take a whole day. Realistic yes, but for a game there needs to be an "easy set-up" mode. Maybe your pit crew/manager could make suggestions or just set it up for you.

 

[Rotorist]

It would be a blast if tire pressure is changeable. Simbin's GTR & GTR2 are fabulous mainly for this feature. I spent hours to adjust it and it is very fun to finally get it right. And it provides you with being able to setup a car differently for a fast lap and another setup for a long race (>10 laps) due to tire wear which differentiates dramatically for different tire pressure settings.

 

[VBR]

Lower pressure means 'squishier' tyres, so more of the tyre in contact with the road. Increase in overall grip, but also increase in tyre wear, and reduced speed in a straight line.

Higher pressure is just the reverse. Tyres are firmer, so less of the tyre against the road surface, lower grip, but less friction so faster in a straight line.

Changeable tyre pressures would add an extra dynamic to the online racing, so I'm all for it. 👍

 

[Imari]

This. If they don't make a dumbed-down version and I have to spend 30 minutes for each race going back and forth with telemetry and experiments just to compete...
I played a Nascar game years ago that had tire pressure adjustments but no real way to test without doing a couple laps. So it was add one pound in one tire, do three laps, then add one pound in another tire, then three laps. Race set-up could take a whole day. Realistic yes, but for a game there needs to be an "easy set-up" mode. Maybe your pit crew/manager could make suggestions or just set it up for you.

It just needs the default settings not to suck balls. As long as the default settings are fairly acceptable, there's no problem.

Getting any part of the car set up decently requires substantial time and lapping. I don't think tyres should be treated any differently to camber or damper rates.

 

[Griffith500]

Yeah, fixed setups should kill any competitiveness issues from not having time to tweak tyre pressures, but then it depends on whether the default setup suits your driving...

 

[Ills1999]

It's difficult to get behind the idea of tire pressure tuning when so far all the other forms of suspension tuning don't have much of an affect and have an affect in the wrong direction half the time.

 

[Lord Protector]

It would be a blast if tire pressure is changeable. Simbin's GTR & GTR2 are fabulous mainly for this feature. I spent hours to adjust it and it is very fun to finally get it right. And it provides you with being able to setup a car differently for a fast lap and another setup for a long race (>10 laps) due to tire wear which differentiates dramatically for different tire pressure settings.

I tell you how to set a car for either fast lap or long race: use different tyres

 

[Stephanos82]

This must have happened to you: a friend who races in real life comes to your place and you intrigue him to play on the real driving simulator so he can give you feedback of how real it feels! Then, the awkward moment when you see him fiddling desperately to find out what the tyre pressure is.. Then comes the confused stare of disbelief while you explain that tyre pressure does not exist in this title, and your mate thinks you are trollin him..!

 

[HBR-Roadhog]

I would like to see tire pressure adjustments, ideally all 4 wheels would be separately adjustable. Would also like to see the springs, dampers and such adjustable at each of the 4 corners rather than just front and rear.

The more tuning options the better

 

[oink83]

It's not that simple.

No, I appreciate there are many more subtleties and differences with pressure, but I was just boiling it down to the very simple differences of the high/low since griffith seemed to not really be sure what the differences were.

 

[LVracerGT]

Tire pressures need to be in GT6. Especially with their new tire model. It's a basic setup adjustment that can make a big difference in dialing in a car. GT5 should have had tire pressure adjustments. It's a must if GT want to call themselves a simulator.

 

[Chrunch Houston]

I don't race NASCAR races, in fact i set up the most arcade style races I can. But I watch NASCAR. If they are going to do NASCAR racing in GT6 they should allow full NASCAR style tuning. Track bar, air pressure all of that.

Not that i would ever use it, but still.

 

[Imari]

I don't race NASCAR races, in fact i set up the most arcade style races I can. But I watch NASCAR. If they are going to do NASCAR racing in GT6 they should allow full NASCAR style tuning. Track bar, air pressure all of that.

Not that i would ever use it, but still.

The important thing they need for NASCAR is asymmetric setups.