Best tire pressure for high speeds

Discussion in 'SRT Hellcat Wheels and Tires' started by tstans, Dec 13, 2015.

  1. tstans

    tstans Rookie

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    I was lucky enough to take delivery of my Charger here in Germany. While looking at the link below from Tire Rack, I noticed they recommend higher tire tire pressures for high-speed driving.

    Air Pressure/Load Adjustment for High Speed Driving (Y-Speed Rated Tires)

    Does anyone have any input and recommendations for extended high-speed driving? My first concern was for traction purposes but after reading this I wonder if it will improve other safety factors as well.
     
  2. SRTFighter

    SRTFighter Silver Member

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  3. Tire God 2.0

    Tire God 2.0 Senior Hellcat Member

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    Yes I've seen this. The downforce applied to the car a very high speeds can overload the tires. If you plan on driving very fast for a long period I would follow the chart, but keep in mind the pressure will raise itself some because of the friction.
     
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  4. SRTFighter

    SRTFighter Silver Member

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    ...and heat too I would imagine.
     
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  5. Tire God 2.0

    Tire God 2.0 Senior Hellcat Member

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    Yes friction=heat
     
  6. pinetreecat

    pinetreecat Gold Member

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    20160503_180041.jpg
    When I track the car I started at 28 to 29 Psi, and after 10 minutes of speed they came up to 33 to 34 psi. That air. No nitrogen filled tires. Experiment a little as outside air temps make a difference. Stay safe!
     
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  7. PlumTexasCrazy

    PlumTexasCrazy HELLCAT LIFE MEMBER Hellcat Car Club HCC Charter Member

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    Great info!!
     

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