Re: Tir e wear in GPL

I just got GPL myself a few days ago and love it. After driving a couple laps, the car will definately drive differently and yes, you got it, it's because the tires are getting hot. I don't know if tirewear is modelled or not. Probably is. It was simulated in ICR2 by Papyrus, so I'd imagine so. Anybody out there who runs long races know for sure? Todd Wasson

Carlo <[email hidden]> schrieb in im Newsbeitrag: [email hidden]... Hi! > I was wondering if there is a form of tirewear in GPL, > when driving a full grand prix the car seems to be handeling different > after a couple of laps. Is this because the tires are getting to hot? No, tirewear is not modeled in GPL, i. e. tires don't get washed out during the race. But, yes, the temperature directly effects the handling of the car. For example if you drive at Zandvoort and overcook it too long, then after some 3 or 4 laps you'll not be able to drive further fast laps. Or try the following at Monza: Drive from the pits to the red Coke-sign on the right and gently touch it with the front of the car. Then go into first gear, rev up the engine and break your rear tires loose. Upshift into 2nd, 3rd, 4th and even 5th and keep the tires sqealing for approx. 30 seconds. After this, with tires now at about 300°C, try a quick lap. Have fun ;)). Regards Crash

I was wondering if there is a form of tirewear in GPL, when driving a full grand prix the car seems to be handeling different after a couple of laps. Is this because the tires are getting to hot?

Looking in the gpl_ai file: base_tire_wear = 0.000000 ; wear (as traction circle coeff.) per kilometer (1000 ms) Of course, this is for the AI cars and is set to 0 tire wear. I wonder if the player cars use this file too for anything. I doubt it since the file is Gpl_AI, but who knows? Todd Wasson

On Sun, 18 Jun 2000 21:59:55 +0200, "Carlo" <[email hidden]> wrote: >I was wondering if there is a form of tirewear in GPL, >when driving a full grand prix the car seems to be handeling different >after a couple of laps. Is this because the tires are getting to hot? > > > According to others tirewear is NOT modelled. It does however state in the manual you received with your sim how many races your tires are capable of lasting. Therefore you can only conclude that tire wear isn't all that important during this era. ----------- "My dispute is with the IRL. I will not support the IRL because I think that's what has disrupted open-wheel racing in America for us. I mean, we are pulling in different directions and that doesn't make sense." -- Mario Andretti, May 2000 Juan Montoya tells the truth about the Indianapolis Motor Speedway http://espn.go.com/media/2000/q2/car_000517jm1a.wav Oval racing is 98% engineering and 2% driver talent.

"Carlo" <[email hidden]> wrote in message news:[email hidden]... > I was wondering if there is a form of tirewear in GPL, > when driving a full grand prix the car seems to be handeling different > after a couple of laps. Is this because the tires are getting to hot? > > >In the era of GPL tires were often thought to still be "green" if they only had one race on them. Thus, tire wear isn't really an issue. Heat is though. I've done some actual scientfic tests of this. Right at about 300 degrees grip starts to drop off The actual drop off is actually well under .1 of a g, but if you're at the limit that feels like the difference between being stuck to the road like glue and driving on ice.

Speedy Fast wrote in message ...

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>On Sun, 18 Jun 2000 21:59:55 +0200, "Carlo" <[email hidden]> wrote: > >>I was wondering if there is a form of tirewear in GPL, >>when driving a full grand prix the car seems to be handeling different >>after a couple of laps. Is this because the tires are getting to hot? >> >> >> > >According to others tirewear is NOT modelled. It does however state >in the manual you received with your sim how many races your tires are >capable of lasting. Therefore you can only conclude that tire wear >isn't all that important during this era. >

Fuel load (weight) is a factor and *could be* the main reason you notice a difference.

Sounds great - new league??? The 300+ Series - only for real Hotshoes ;-) Jens On Sun, 18 Jun 2000 22:10:08 +0200, "Joachim Blum" <[email hidden]> wrote: ><snip> tires sqealing for approx. 30 seconds. After this, with tires now at about 300�C, try a quick lap. Have fun ;)). > >Regards >Crash --------------------------------------------- [email hidden] Remove "NOSPAM" before using my email-address JensSchumi homepage at http://members.xoom.com/JensSchu/ Racing simulation, esp. GPL Logitech Wingman FF optimization Classic cars, esp. Morris Minor Radio controlled airplanes