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  1. #1
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    Default Tire Pressure Question

    Well I did it! I now have a Kumho Ecsta on the rear of my 2016 F3T. I’m 6’5 and 310lbs! Any tire pressure recommissioned? I ran 28 in the stock Kenda and I know from past forums many of you don’t run that much pressure in a car tire! I’m an old man so I don’t race it or drive crazy. Do occasionally go to up!

  2. #2
    Very Active Member billybovine's Avatar
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    Try 20 psi to start with. Maybe go up to 22 considering your weight. The Kuhmo is a much harder tire then stock and will last a very long time. But you sacrifice grip for that. So the lower the air pressure in general means more grip, but may make the back end feel a little sloppy.

    2018 F3 LIMITED

  3. #3
    Very Active Member BLUEKNIGHT911's Avatar
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    Default REAR TIRE - PSI

    Quote Originally Posted by billybovine View Post
    Try 20 psi to start with. Maybe go up to 22 considering your weight. The Kuhmo is a much harder tire then stock and will last a very long time. But you sacrifice grip for that. So the lower the air pressure in general means more grip, but may make the back end feel a little sloppy.
    AND ....... I think 18 would be better tho ...... and any Squishey feeling is only in your mind ... That tire is DESIGNED to carry 1450lbs +/- ....... Mike

  4. #4
    Very Active Member hypurone's Avatar
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    Quote Originally Posted by BLUEKNIGHT911 View Post
    AND ....... I That tire is DESIGNED to carry 1450lbs +/- ....... Mike
    Close, 1,356 lbs, but we get your drift.... And at 14psi cold there is nothing squishy about it. But I agree with a little higher pressure for his scenario + occasional 2up....

    '15 F3-S Pure Magnesium Metallic - Mad Max Edition
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  5. #5
    Very Active Member ARtraveler's Avatar
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    Start with the recommended pressures and adjust a pound or two at a time. Get them where you are comfortable and you should be good.

    Currently Owned: 2019 F3 Limited, 2020 F3 Limited: SOLD BOTH LIMITEDS in October of 2023.

    Previously : 2008 GS-SM5 (silver), 2009 RS-SE5 (red), 2010 RT-S Premier Editon #474 (black) 2011 RT A&C SE5 (magnesium) 2014 RTS-SE6 (yellow)

    MY FINAL TALLY: 7 Spyders, 15 years, 205,500 miles

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  6. #6
    Very Active Member Peteoz's Avatar
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    Quote Originally Posted by billybovine View Post
    Try 20 psi to start with. Maybe go up to 22 considering your weight. The Kuhmo is a much harder tire then stock and will last a very long time. But you sacrifice grip for that. So the lower the air pressure in general means more grip, but may make the back end feel a little sloppy.
    Yeah, I’ve got the Kuhmo and I’ve got a few pounds on you, I-Day. I ran at 24 for a while, then 22, 20, and 18 and experienced no issues and a “seat of the pants” best handling feeling for me at 18. I’ve settled on 20psi as about the right ‘feel” for me, but as Billy says, suck it and see.

    Pete
    Harrington, Australia

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  7. #7
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    Thanks guys!

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