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Tire Temps

Discussion in 'Project CARS Setups' started by Jake Fangio, Jun 15, 2015.

  1. Jake Fangio

    Jake Fangio
    Please don't rain pleeaassee don't rain

    Hi all.I'm just starting to create my own setups and have a question regarding tire temps.Is it best to take the middle temperature on the tire or just the highest to gauge the best temp.And also,I know all tires are different,but is there an average temp to aim for when getting the best from the tires.Thank you all in advance.:thumbsup:
  2. I don't think there is such thing as an "average tire temperature". The road tires on a Caterham work completely different than soft slicks on a F1 car.
    The best thing to do is to simply check the optimal temperature on your own, using the telemetry screen - the greener they are, the better.
    And as for the "regions" on a tire - my guess is: they should be somewhat even. If the outside of a tire is much hotter than the middle, then you probably don't have enough camber and it's the exact opposite with the inside. In ideal condition, when going straight, most of the stress should be put on the middle of the tire, so that's where the maximum temperature should be.
    Last edited: Jun 16, 2015
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  3. Jake Fangio

    Jake Fangio
    Please don't rain pleeaassee don't rain

    Cheers mate.I tend too run them slightly hotter on the inside.
  4. I use the inside to outside temp differential as a way to gauge if I'm running to much camber or not. It is said that the inside shoulder of the tire should be hotter than the outside due to the camber (a higher negative camber will shift more weight towards the inside of the tire and thus more friction over a lap) and that the temperature differential should not be higher than 5 degrees Celsius. The central temperature should be in between.

    So applying this, if I have a lower temperature (or not a couple of degrees higher) on the inside I will increase camber. However, there are certain exceptions to this "rule". First, it does not fully apply to drive wheels as higher camber will reduce contact patch on straights and might therefore reduce traction, so be subtle with those. Second, due to tracks not being symmetrical the front wheel of one side will receive more forces, this is the one you should be looking to when doing setups and apply the same camber both sides. I would personally not recommend having asymmetrical camber right/left. Last, be careful of excessive camber as this will affect your straight line breaking efficiency, as higher camber will reduce tire contact patch on straights.

    In regards of average temperature, if the green temperature band is between 80-100, for example, I would target to have and average in between 90-95 more or less. You can change this by changing tire pressure. The lower the pressure the higher the temps will be. Here again, I would not recommend having different pressures right/left, go with the one that gets hottest. Alternatively, you could target for the temperature of the tires at the beginning of a time trial session. However, I have found these to be a bit high and in targeting for those I have found myself burning my tires way to quickly.

    I hope it helps :)

    Disclaimer: I am by no means an expert, I have just read things here and there and tried different things; its a mixture of "actual" science, bro science and things that feel right when applied. But so far this has worked for me :)
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  5. If you want a hand in trying to get setups sorted in your man....I'm more of a tester than a tuner...apart from aero and gearing I'd make it worse lol....I did a lot on Forza 4 for my guys on there....they gave them to me because I was quick and I knew what I wanted from the car for each track they were composing for... So would be nice to do the same again.