Adjust Tire Width and Diameter?

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KonamiNatR
So I was on the feedback section yesterday and noticed no one is asking about being able to change wheel and tire sizes? I thought a lot of people wanted, both for performance and aesthetics. I remember reading a post (I forgot who it was I'm sorry) where someone was talking about their FD and S15. He/she was saying that no matter what they did, it was really hard to get their S15 to be as good as his FD even though he'd match their PP. He was saying the tires on the S15 might just be too skinny compared to the FD, I wouldn't really know though, I don't drive my S15 much.

So what are your guy's thoughts? Should GT5 update the game to let us adjust wheel and tire sizes as well as offset and such?
 
Yeah the pp system is strange.
Or your good at corners and not at speed , or your good at speed and not in corners , but some cars have both :/ and still same pp.
Just look at the time trails on seasonal events always 1 car dominating.
The last one in the snow track with the Evo super rally car mitsubishi. The car is somewhere over 1200 kg and other cars that are 950 kilograms and same downforce and 4X4 cant even get near. and that one is limited by 350hp and 950kg instead of pp... its strange.
It might be the tires i dont know but snow = better on narrow tyres ? :p

But what the hell is a FD ??? S15 i think as a Nissan Silvia ?
 
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I don't think adjusting the tire width and size would make a difference. The suspension and actual tire compound would.
Toe and camber can adjust the amount of tire you have on the ground anyways.
If they were the same weight and power and they handled differently then it'd be strange, however both these cars have equally different handling characteristics so although the PP system measures them to be the same, driving the cars is a different story.



TeamOrecaViper
Yeah the pp system is strange.
Or your good at corners and not at speed , or your good at speed and not in corners , but some cars have both :/ and still same pp.

But what the hell is a FD ??? S15 i think as a Nissan Silvia ?

FD is a Mazda RX7 FD3S and S15 is a Nissan Silvia S15
 
Maybe Weight distribution (front/rear) , Body stiffness , Ride hight?

Very Maybe The streamline of the body or the Centre of gravity (verticaly) . But the last 2 arend coded into gt5 i think :).
 
Thanks for the feedback guys. It'll really come in handy when I'm doing PP races against my friends.

But my real question was, would you guys like being able to change wheel/tire sizes on GT5?

I for example, my NSX and Hakosuka. I love these cars to death, but I feel like they could use a wider set of rubbers.
 
Thanks for the feedback guys. It'll really come in handy when I'm doing PP races against my friends.

But my real question was, would you guys like being able to change wheel/tire sizes on GT5?

I for example, my NSX and Hakosuka. I love these cars to death, but I feel like they could use a wider set of rubbers.

I would love to slap on some more tire on to my car, and I'm sure most tuners would agree. You don't see it on wish list because people want new cars, and not improvements to the core of the game.
 
The Hakosuka would be amazing with a good set of tires, along with the GT350R and many other's.
 
The Hakosuka would be amazing with a good set of tires, along with the GT350R and many other's.

That's what I'm saying. Plus, it'd add a lot of aesthetic improvement compared to the skinny stock tires. :)
 
The Hakosuka would be amazing with a good set of tires, along with the GT350R and many other's.

Totally agree with adding tyre/rim diameter and width alterations. 👍
Specially if you're a classic muscle car collector (like my nephew) who has a growing garage of favourites...:sick: :lol:

And yes, it would also greatly benefit a lot of newer "tuner" cars too. ;)
 
The '83 Nissan Silva 240RS could use much, much wider tires:

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Changing tyre width and height and mixing between front and rear was one of the key racecar tweaks before aerodynamics became the obsession, would love this in the game. You could stick wider rubber on a Jag E-type (for example) and keep up with more modern cars instead of sliding everywhere trying to keep up.
 
In my opinion, I think this would be a great feature and I would definitely use it.

1. It would help cars like what Rockspeny said with an E-Type to stop them sliding around everywhere and be more challenging to opponents.

2. It would make some cars look awesome. Especially my Minis; they look horrible with those skinny wheels/tires.
 
100%, I'd love this for both performance and aesthetics.

For those questioning performance:

I had actually written up a really long explanation but it was a bit rubbish. To put it simply, it's to do with dissipating heat from the moving rubber. Wider tyres = more heat dissipated, so the limit of grip is made much larger.
 
It does suck that they haven't incorporated tire and wheel dimensions in the game. In reality aftermarket rims and tires are always wider than stock wheels. In the game they still have that ugly stock tuck. I admit throwing some 24's on a Nissan is idiotic, but increasing the width on those Volk TE37's are a must. It does add more tire on the ground and more mass, thus increasing handling capabilities. Some cars stock widths are ok like the GTR R35 or the Benz C36, but most of the street cars just look plain foolish even with some new BBS's. I hope PD implements dimensions in the next few updates.
 
When you change wheels in GT Auto, I do notice that visually, some wheels have lower profile tires than others, while some have lettering and such.

Is there any performance difference in-game between the different wheel types in GT Auto or is it just for visual asthetics?
 
I'm pretty sure all wheel upgrades are just aesthetic and don't affect grip.

As for tire sizes between cars, it is definitely true that some have more grip than others. You could set up two FR coupes with similar weight and weight distribution and similar suspension settings and the one that has wider tires (usually a newer car) will hold much higher corner speeds.

When it comes to PP based racing car selection is key. The winning combination is 50% car, 30-40% driver, and 10-20% tune. If you are questioning your tuning or driving skills, you should stick to spec racing lobbies until you can confidently run at the front of the pack. Otherwise you're just chasing cars you can't compete with or beating people in a car that is simply faster.

Newbs always think they're the fastest driver out there because they win every race in an NSX or an Elise, but the fact is, those cars will run 3-4 seconds faster per lap in the right hands than anything else at the same PP...so if the driver isn't winning by 20+ seconds every race, they aren't getting the most out of the car.
 
When you change wheels in GT Auto, I do notice that visually, some wheels have lower profile tires than others, while some have lettering and such.

Is there any performance difference in-game between the different wheel types in GT Auto or is it just for visual asthetics?

Yes, not sure how much, but it is very little. I think all of the option rims have "slightly" better grip.
 
Thanks for the feedback guys. It'll really come in handy when I'm doing PP races against my friends.

But my real question was, would you guys like being able to change wheel/tire sizes on GT5?

I for example, my NSX and Hakosuka. I love these cars to death, but I feel like they could use a wider set of rubbers.
For sure, yeah. 👍

It's yet another tuning option that I was expecting.
 
Absolutely...as long as there is a lobby setting to limit the tire sizes. Otherwise it will just complicate the matter as some cars would likely be allowed to run wider tires than others.
 
chuyler1
Absolutely...as long as there is a lobby setting to limit the tire sizes. Otherwise it will just complicate the matter as some cars would likely be allowed to run wider tires than others.

I'm sure it'll be tied into Performance Points
 
A change in diameter would be a surefire way of knowing the tires' diameters for the purposes of speed calculation. I've always been a proponent of displaying the diameter of the driven tires in the fully customizable transmission screen.
 
You can calculate tire diameter using the same method. More work, though, since you need to find out your speed at a given transmission ratio.
 
You can calculate tire diameter using the same method. More work, though, since you need to find out your speed at a given transmission ratio.

I actually put the calculations needed to guesstimate tire size from road speed and gearing into a spreadsheet. I used this in real life when working out transmission modifications for my car. They work just fine in Turismo.

While outright grip won't change with tire widhh, the shape of the contact patch and subsequent heat, deformation and stability issues this affects will change useable grip, anyway.

Since we don't have tire deformation, that part isn't important... But since we have tire heat, that part is. Of course, I've long felt that GT does not properly separate mechanical grip from the tires and mechanical grip from the suspension properly in modelling (which is why it's impossible to match outright grip between different variants of the same car on the same tire if they originally came on different tire sizes...), so it may take some tweaking of the game engine before changing tire widths becomes as useful as it is in real life.
 
It is odd thatthey havent included tyre width adjustments.
Some cars, like the SLR, are even labeled as having 19inch tyres. Do those car have bettergrip than their smaller tyre sized brethren?

This is something GT should have. Tyre and brakes really should have more adjustable parameters.
 
Unfortunately, we still have to play F4 for our cool tire and rim fix. lol. It definitely adds to the experience.
 
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