Do "Kerbs" & Run-Off Areas Wear Tires?

  • Thread starter Thread starter Afrodeezy
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If you put your front right tire and/or both right side tires on a curb your back left tire will wear more than the others.

Also, depends on the car, but curbs can jostle you around and cause you to actually lose speed.

Stay off the curbs.
 
peter_vod69
IT WAS BECAUSE YOU MISSED THE BLOODY POINT!

If you are turning one way, more than the other then you will, inevitably, wear one side's tyres more than the other! Now, tell me how an oval (where, typically, you turn one way ONLY) is going to give you even tyre wear?
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Let's all calm down.

The point is. You're going around the oval in one direction testing the wear ONLY on the inside tires. You're not comparing...

Front Left (over curb) to Front Right (off curb). 20 laps.

You're comparing...

Front Left (over curb for 20 laps) to Front Left (off curb for 20 laps).

Get it yet?
 
niky
Let's all calm down.

The point is. You're going around the oval in one direction testing the wear ONLY on the inside tires. You're not comparing...

Front Left (over curb) to Front Right (off curb). 20 laps.

You're comparing...

Front Left (over curb for 20 laps) to Front Left (off curb for 20 laps).

Get it yet?
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:lol:


Break out the cars which go full-throttle all the way around Indy, for this test. It will further improve consistency.


For example, I know, from Star Mazda testing, that the Formula Gran Turismo runs flat out @ 50% power limiter, and can run the inside kerbing without problems.
 
MrMelancholy15
Break out the cars which go full-throttle all the way around Indy, for this test. It will further improve consistency.
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I'm still sticking with what I said earlier. That the outside tires are going to take the brunt. Doesn't matter if its half-throttle, foot to the floor, in reverse... science shows that no matter the speed once in motion in a circuit centrifugal/centripetal force is going to be in effect. It's just fact. I'd also tend to think being at full tilt would just increase wear dramatically, as there wouldn't be that momentary lessening of heat/pressure as one decelerates. The weakest links will always break first, in this case that plyable substance known as rubber.
 
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I know that in real life events such as BTCC, driving aggressive over the curbs in many cases can put much more strain on the tyres, and lead to issues later in the race.

In GT i can imagine that there is no direct impact on tyre wear from going over dirt or a curb, but more likely that having the inside wheels raised by a curb, more pressure would be put on the outside wheels, causing the car to slide, and therefore wear the tyres. But this is all very corner specific.
 
For a tire wear test, why not use a track that crosses itself (Autumn Ring or Suzuka), which will balance the left- and right-hand turns to being approximately equal in number and severity/sharpness?
 
careface
If you put your front right tire and/or both right side tires on a curb your back left tire will wear more than the others.

Also, depends on the car, but curbs can jostle you around and cause you to actually lose speed.

Stay off the curbs.
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But if you make a point to avoid the Kerbs (this is more noticeable on technical tracks like the Nordschleife) it will slow your laptime down. The higher the exit speed out of the corner, the quicker you'll be, and sometimes to get as high of an exit speed as possible, it helps to use kerbing.
 
niky
Let's all calm down.

The point is. You're going around the oval in one direction testing the wear ONLY on the inside tires. You're not comparing...

Front Left (over curb) to Front Right (off curb). 20 laps.

You're comparing...

Front Left (over curb for 20 laps) to Front Left (off curb for 20 laps).

Get it yet?
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THANK YOU, this is what I've been trying to explain to him the whole time, as he is the one who is missing the "bloody point"
 
careface
Stay off the curbs.
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I guess these guys have been doing it wrong...

And to OP, don't worry about extra wear from the kerbs, it doesn't matter and if you try to avoid using the kerbs then you might be 1 second a lap slower.
 
DGXR
For a tire wear test, why not use a track that crosses itself (Autumn Ring or Suzuka), which will balance the left- and right-hand turns to being approximately equal in number and severity/sharpness?
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You have a good point, but I still believe the oval is the easiest/most consistent way to test this over a number of laps. Your method would work in theory, but if you want to test over a high number of laps, the oval is the easiest. Also, the autumn ring has some odd corners (most notably turns 3,4,&5) which are easy to wear the tires in weird ways depending on the speed you take it at. Too many variables if you ask me, this is why I prefer the consistency of IMS.
 
Bopop4
<a href="http://www.youtube.com/watch?v=WmxSkQTks-E">YouTube Link</a>
I guess these guys have been doing it wrong...
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I guess every professional racing driver has been doing it wrong :P

Bopop4
And to OP, don't worry about extra wear from the kerbs, it doesn't matter and if you try to avoid using the kerbs then you might be 1 second a lap slower.
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Look a few posts up ;)
 
Afrodeezy
I guess every professional racing driver has been doing it wrong :P
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Lol yeah.

Afrodeezy
Look a few posts up ;)
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Pretty much, but it's not always about exit speed. If the corner leads to a very short straight then exit speed doesn't matter so much. It helps to remember the PROPER racing term, "Fast in, fast out." ;)

The generally, the straighter you can make the turn, the better.
And a kerb like the one at T2 of TR246 is a perfect example of that.
 
peter_vod69
IT WAS BECAUSE YOU MISSED THE BLOODY POINT!

If you are turning one way, more than the other then you will, inevitably, wear one side's tyres more than the other! Now, tell me how an oval (where, typically, you turn one way ONLY) is going to give you even tyre wear?
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Your missing the point. Your not just missing the point, your light years away from it....

The oval test compares the inside tyre life before kerbing and after kerbing....thats it!!!! Not hard to understand...
 
Bopop4

I guess these guys have been doing it wrong...

And to OP, don't worry about extra wear from the kerbs, it doesn't matter and if you try to avoid using the kerbs then you might be 1 second a lap slower.
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I've been doing a 24hr so my mindset was not in hot-lapping mode. of course cutting apexes is going to be faster.:crazy:

Besides, wasn't this thread about tire wear in GT5???? :crazy: :crazy: :crazy:
 
careface
Besides, wasn't this thread about tire wear in GT5??????
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Yes, but what's wrong with comparing a game that markets itself as "the real driving simulator" with real life racing?
 
kk20
Your missing the point. Your not just missing the point, your light years away from it....

The oval test compares the inside tyre life before kerbing and after kerbing....thats it!!!! Not hard to understand...
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So much this ^^^
 
Afrodeezy
Yes, but what's wrong with comparing a game that markets itself as "the real driving simulator" with real life racing?
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There are already dozens of threads on gt5 vs real life. Post in those. We already know that gt5 and real life are different
 
I am showing you that you don't need to worry about tire wear when driving over the kerbs.
Not a comparison between real life and GT5.
 
Shoe67
There are already dozens of threads on gt5 vs real life. Post in those. We already know that gt5 and real life are different
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I get that, but that's not what this thread originated as. All I'm saying is there shouldn't be an issue with making a comparison to IRL..
 
We're not asking for whether using the curbs would be faster or slower, we want to know if the act of the tires moving over curbs or patches of grass at speed 'wears' the tire for that moment.

I would think not in GT, not to a notable level anyway, but watch BTCC knockhill 2011, gives an idea what aggressive curb usage looks like.
 
GODfreyGT5
BTCC knockhill 2011, gives an idea what aggressive curb usage looks like.
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Flying airborne psychotics! That's what aggressive curb usage looks like! :lol: Knockhill's got that brutal turn 4/5 complex. I love it.
 
peter_vod69
IT WAS BECAUSE YOU MISSED THE BLOODY POINT!
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Love it.













Anyway, one thing that should be taken into account for the theoretical oval test is that, because to hit the curb you would need to take the turn sharper than if you were avoiding it, turning angles would have to be larger which should increase wear on the front tires. As a result, it might color the results of a test a little (though possibly not outside the margin of error).
 
Toronado
As a result, it might color the results of a test a little (though possibly not outside the margin of error).
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Run ALL of the control tests!

images
 
Had to,

This is what aggressive use of the curbs looks like, and you can only imagine what this sort of driving would do to the rubber.

 
GODfreyGT5
This is what aggressive use of the curbs looks like, and you can only imagine what this sort of driving would do to the rubber.
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Maybe not as much as you think. The biggest downfall will be locking while braking, flatspotting the tires. Excessive camber angles found in V8SC will also factor in.

I still think the bigger concern from the teams would be a bent steering arm, a sheered mount bolt, damaged wheel, or a displaced spleen. Probably in that order too. Something quite like this or this. Unless under very strict fuel/tire-saving measures at the end of a race, I just don't see them having a concern about the rubber wear from the curbs. They don't run entire races on one set of tires, obviously, as such aggressive curb usage will be urged to gain time. Larkham, what've you got to add mate?

 
Using the curbs might wear the tyres more, but so does avoiding the curbs due to a sharper turn angle, given that you want to carry the same speed (scary).
If a sharper turn should end up in less tyre wear, the speed need to be so much slower compared to when you use the entire track (and curb).
As we all know, it will be slower to avoid the curbs. Will it save you tyres.. Probably yes... But the lost time avoiding the curbs would'nt be gained back thru a longer tyre life. So to me, it's not even something to concider.
I do understand the question, but really nothing that you'd gain anyhthing on playing GT5.

IMO 👍
 
niky
Let's all calm down.

The point is. You're going around the oval in one direction testing the wear ONLY on the inside tires. You're not comparing...

Front Left (over curb) to Front Right (off curb). 20 laps.

You're comparing...

Front Left (over curb for 20 laps) to Front Left (off curb for 20 laps).

Get it yet?
Click to expand...

Sigh...

Why though? I mean if you seriously think that running over kerbs with the inside tyre is going to wear that tyre faster than the outside tyre then I'd suggest you either aren't pushing hard enough or you don't understand the physics going on. What is the point of analysing tyre-wear on the inside tyre when it's going to wear out more slowly anyway?

The point is, that in a racing scenario in GT5, you should be more concerned with how much stress you are putting on the outside front tyre, and how straight your cornering lines can be made. The only issue with running over SOME kerbs is going to be how much they upset the balance of the car (like the rather high kerbs in the tunnel corners on Grand Valley, for example).
 
GODfreyGT5
Had to,

This is what aggressive use of the curbs looks like, and you can only imagine what this sort of driving would do to the rubber.

Click to expand...


That's what happens when you get a high-speed chicane that's very tight. I mean, the last corners at Trial Mountain are effectively the same thing, in any open lobby.
 
peter_vod69
Sigh...

Why though? I mean if you seriously think that running over kerbs with the inside tyre is going to wear that tyre faster than the outside tyre then I'd suggest you either aren't pushing hard enough or you don't understand the physics going on. What is the point of analysing tyre-wear on the inside tyre when it's going to wear out more slowly anyway?
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LMAO i am literally laughing my a*se off. You still dont get the damn point....HAHAHA ROTFLOL...

We are not comparing inside vs outside!! We are comparing kerbing vs no kerbing. Let me spell everything out...

Hypothesis: I think tyres wear faster when driving over kerbs. Blah di blah blah

Test: Run laps in an oval track. Run 10 laps while kerbing and run 10 laps not kerbing. Repeat multiple times. Conclude the damn results.

Equipment needed: PS3, GT5, DS3

IF the inside wears faster while kerbing then the hypothesis is true. THIS IS WHAT OP IS ASKING!!!

Outside tyres are fricking irelevant....

Get it now???!!!!
 
There are too many variables, the extra wear could be caused by taking a tighter line and putting more stress on the tires.

If GT5 uses the amount of load on a tire to help calculate wear then yes, running over the kerbs will put more load on the outside tires and wear them quicker.
 
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