Kart Racing Pro Official Forum

General => Setups => Topic started by: oppolo on May 02, 2011, 06:19:09 PM

Title: optimun temp tires?
Post by: oppolo on May 02, 2011, 06:19:09 PM
optimum temp tires?

how the pressure? more pressure less temp?

when do you use hard tires?
Title: Re: optimun temp tires?
Post by: Schwoni on May 02, 2011, 06:22:23 PM
optimum temp on tyres is i think 80 - max. 100 degrees

more pressure less temp right but in krp you you can only change 0,3 bar so i`m not able to set a good setup for this i think we need more.

with hard tires same but they need more time to get on temp and too hot ;)
Title: Re: optimun temp tires?
Post by: EVO on May 09, 2011, 10:50:08 AM
You tires will overheat if you put too much pressure,
If you put too little they will never get upto temeprature
if you put just right they will last longer than everyone else and help you at the end of the race
Title: Re: optimun temp tires?
Post by: Schwoni on May 09, 2011, 10:53:15 AM
i think it`s opposite. but ok  ;)
Title: Re: optimun temp tires?
Post by: Aritz on May 09, 2011, 11:01:55 AM
Schwoni, he is right ;)

In karting the more pressure the more heat and you will  have high wear! If you put, lets say, 1 bar in summer, with high track temp, you can destroy your tyres in few laps!
Title: Re: optimun temp tires?
Post by: oppolo on May 09, 2011, 06:26:28 PM
Quote from: Aritz on May 09, 2011, 11:01:55 AM
Schwoni, he is right ;)

In karting the more pressure the more heat and you will  have high wear! If you put, lets say, 1 bar in summer, with high track temp, you can destroy your tyres in few laps!

yes, i read later in a setup guide.
so the possibility of put 1 or 1.3 bar it is only for wet track?
Title: Re: optimun temp tires?
Post by: Aritz on May 09, 2011, 09:29:41 PM
with normal tyres, in a normal day, 1.3 bar is madness. You would see tyre pieces flying over the track like the Pirelli in F1 lol
Title: Re: optimun temp tires?
Post by: Schwoni on May 30, 2011, 11:57:13 AM
i have a problem with the tyre temp. I drive 4-5 laps and after this the kart is undrivable because i have 120 degrees on rear tyres. I tried to change the pressure to 0,4 bar and also to 1 bar but it`s the same. Anyone else with this problem? or do i drive to aggressive :)

(http://www.abload.de/thumb/screen000yjf7.jpg) (http://www.abload.de/image.php?img=screen000yjf7.jpg)
Title: Re: optimun temp tires?
Post by: PiBoSo on May 30, 2011, 12:26:40 PM
Quote from: Schwoni on May 30, 2011, 11:57:13 AM
i have a problem with the tyre temp. I drive 4-5 laps and after this the kart is undrivable because i have 120 degrees on rear tyres. I tried to change the pressure to 0,4 bar and also to 1 bar but it`s the same. Anyone else with this problem? or do i drive to aggressive :)

(http://www.abload.de/thumb/screen000yjf7.jpg) (http://www.abload.de/image.php?img=screen000yjf7.jpg)

Which kart?
Soft or Hard tires?
Title: Re: optimun temp tires?
Post by: Schwoni on May 30, 2011, 12:29:34 PM
ks1 soft tires what does the black and white line display? i think the temp difference between in middle and out. right?
Title: Re: optimun temp tires?
Post by: PiBoSo on May 30, 2011, 12:34:15 PM
Quote from: Schwoni on May 30, 2011, 12:29:34 PM
ks1 soft tires what does the black and white line display? i think the temp difference between in middle and out. right?

The three black bars for each tire display inside / middle / outside wear.

Title: Re: optimun temp tires?
Post by: Aritz on May 30, 2011, 12:37:27 PM
So, we have the same tyre during the session?

For race, the tyre is new? When do they be changed?
Title: Re: optimun temp tires?
Post by: PiBoSo on May 30, 2011, 12:42:42 PM
Quote from: Aritz on May 30, 2011, 12:37:27 PM
So, we have the same tyre during the session?

For race, the tyre is new? When do they be changed?

Fresh tires are automatically used every time the kart goes to track.
Title: Re: optimun temp tires?
Post by: oppolo on May 30, 2011, 02:43:50 PM
Quote from: PiBoSo on May 30, 2011, 12:34:15 PM
The three black bars for each tire display inside / middle / outside wear.
uh, never realized those  ::)
what's better? equable wear?
Title: Re: optimun temp tires?
Post by: Aritz on May 30, 2011, 03:13:10 PM
That's impossible...

The normal wear is a lot inside and almost nothing outside of the tyre. Why? High camber front and axle flexibility (a kind of camber) rear
Title: Re: optimun temp tires?
Post by: PiBoSo on May 30, 2011, 04:09:00 PM

Could you please give feedback about temperatures on the other karts, too?

Title: Re: optimun temp tires?
Post by: Schwoni on May 30, 2011, 05:22:16 PM
Quote from: dibu on May 30, 2011, 03:55:00 PM
Just drove some laps in Lonato with my Essay setup.

KS1, soft, 20°, same setup for both tracks.


Here is the number of laps until I have no more grip (one rear tyre > 110°)
I also don't see much influence by changing the tyre pressure.

Lonato: 7 laps
Essay:  5 laps

I also tried the setup values, which Schwoni posted and the tyres overheated much faster.
The setup is so extreme, I can't drive it. It's something for real specialists :o.

;D another guy said the same to me my setup is too extreme for the tyres. After this i drove some laps with default setup and it was only 120 before 125 so not much difference for me :)
maybe my style is too hard
Title: Re: optimun temp tires?
Post by: Aritz on May 30, 2011, 06:22:58 PM
The tyre pressure must have a lot to do with the tyre temp.

For example 0,5 bar and 120 degrees are incompatible :) With low pressures, you barely warm your tyres and after 20 laps, you can easily touch them without burn yourself (50-60º ?)

One question, how do the wear affect to times or grip Piboso? Can we have more info about this? Thanks!
Title: Re: optimun temp tires?
Post by: Schwoni on May 30, 2011, 06:49:21 PM
lol ok i have done the same test with kc3 same bar and same air temp.


after 33 laps it starts to became slippery in 40th lap undrivable but not because temp it is because no more rubber on tyres ^^

(http://www.abload.de/thumb/screen002wemv.jpg) (http://www.abload.de/image.php?img=screen002wemv.jpg)

Later i test kc1 but how dibu says work this also fine so i think this problem is only with ks1 or i push it too much because there starts rear axle sometimes spinning
but i think after 5 or 7 laps 125 degrees is to much ;)
Title: Re: optimun temp tires?
Post by: Aritz on May 30, 2011, 06:52:16 PM
Woaw, interesting!!

You are doing a great work Piboso, keep this way :)
Title: Re: optimun temp tires?
Post by: oppolo on May 30, 2011, 06:59:46 PM
Quote from: Aritz on May 30, 2011, 06:22:58 PM
For example 0,5 bar and 120 degrees are incompatible :)
with pression of tyres and temperature there is maybe some strange, it changes not so much, tried 0.4 and 1.0 and there is not so much differences
Title: Re: optimun temp tires?
Post by: Aritz on May 30, 2011, 07:04:55 PM
120 º is clearly a bug, is impossible I think. They should blow up with this temp.

We all agree that tyre pressure is not working correctly, let's wait to the next physic patch :)
Title: Re: optimun temp tires?
Post by: Aritz on May 31, 2011, 03:47:53 PM
My testing:

I am not as fast as schwoni at all and didn't warm the tyres more than 100º, my setups are standard; not radical, not easy.

0,4 bar = Fast grip and too much temp soon. I think this is no right, it should be just the opposite; slow warming of the tyres and low grip until the temp (and pressure!) goes to normal values (lets say 0,8 bar and 60-70º)

1 bar = Ice at first and then perfect grip lap after lap. Again, it should be the opposite; first good grip and then fast decrease of the grip and very high wear. We use "high" pressures for qualifying, they are very short, and lower pressures for racing because they are 2 o 3 times longer than Q.

My opinion:

The perfect pressure has to be 0,7 - 0,8 with hot tyres (soft ones) and the temp never higher than 90º (here I can say so much, experts have to talk)
Title: Re: optimun temp tires?
Post by: GhostriderPl on June 01, 2011, 08:21:06 PM
question is what times you drive when your tire temps are ok at 27 laps?

when you drive 44 sec at lonato then i unterstand this......but try few laps at 42 and your tires geht warm (very warm) ;-)
Title: Re: optimun temp tires?
Post by: GhostriderPl on June 04, 2011, 12:58:26 PM
understand........now i drive 42.6xx in lonato with Ks1 (but somethings wrong with the servers) and on every tack i have the same problems...at 5! Laps the temps on the left rear are over 100 degrees (100-125).....in my opinion its like i say...once more.....the grip on the rear is too low thats why you are drift and that put the temps in the extreme......but thats only my opinion...good grip=no drifting=temps ok.................less grip=drifting=higher temps

and like i say a kart has much grip....


Greetings GhostriderPL
Title: Re: optimun temp tires?
Post by: GhostriderPl on June 04, 2011, 01:36:52 PM
In real life i drive very round and thats good for the tires....but i drive also fast....in the game i have to drive slower because of tyre temps?  have to think about that.....i dont drive extreme style but the temps are extreme.....dont know how it is with the other classes because i drive only Ks1 (the other classes are to slow for me)  ;)
there must be a change on the grip level in my opinion