512TR Tire choices ? | FerrariChat

512TR Tire choices ?

Discussion in 'Boxers/TR/M' started by dinos, Apr 30, 2022.

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  1. dinos

    dinos Karting

    Jan 6, 2013
    107
    Athens - Greece
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    Dinos
    Hello to all,
    After 10+ years its time to change my tires !
    I was planning to use Michelin "pilot super sport" but from what I checked they dont do the size for the front.
    From Pirelli the "P zero rosso" are available.
    Anyone changed tires lately ? and if yes, any comments ?
    Thank you.
     
  2. flash32

    flash32 F1 Veteran

    Aug 22, 2008
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    #2 flash32, Apr 30, 2022
    Last edited: Apr 30, 2022
    I used PS2 and they are awesome ... Quiet and soft


    Noticed they are backed ordered now .. not sure how longa wait


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  3. dinos

    dinos Karting

    Jan 6, 2013
    107
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    Dinos
    Thank you,
    I will check with Michelin !
     
  4. MM355

    MM355 Formula 3

    Apr 7, 2008
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    I have Michelin ps2 very happy with them.
     
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  5. dinos

    dinos Karting

    Jan 6, 2013
    107
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    Dinos
    Thank you.
     
  6. Auraraptor

    Auraraptor F1 World Champ
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    #6 Auraraptor, Apr 30, 2022
    Last edited: Apr 30, 2022
    I am in the same boat, as I need new tires for my TR.

    PS2 are a now ancient design. Good tire circa late 2000s, I have used it on several cars.

    Continental extremecontact is essentially a modern tire built on the same philosophy (Soft compound, high grip, progressive breakaway, long life). They should out perform a PS2 in nearly every category (as one would hope, given the decade of additional development). I have used these now on two of my cars and really appreciate them. It is even on my wife’s car because of how comfortable and predictable they are. The additional grip makes her car’s brakes actually reasonable and they have worked incredibly well in the several rain storms/thunderstorms we have had.

    If max performance is your goal, Bridgestone just released the new Re-71rs. It is a much harder compound with a comparatively much shorter thread life. However the grip, braking, steering performance is unworldly and on an whole other level. This just came out but I have been using its immediate predecessor (RE-71R) on my front engine V12s and look forward to upgrading to the new version when I need new tires. I also plan on buying them for my TR if my wheel project falls through/fails.
     
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  7. EZORED

    EZORED Formula 3
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    Nov 24, 2007
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    Michelin p4s. For the 512tr


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  8. Auraraptor

    Auraraptor F1 World Champ
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    P4S is not made in the correct 18in size recommended by Ferrari.
     
  9. turbo-joe

    turbo-joe F1 Veteran

    Apr 6, 2008
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    would be great if you could write what size you need? so what rims you have, front and rear?
     
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  10. Auraraptor

    Auraraptor F1 World Champ
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    My assumption was the standard 18in 235/40-18 295/35-18…
     
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  11. Auraraptor

    Auraraptor F1 World Champ
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    Old design, spongy steering, needs heat /warm cycles. If you want a 200 tread wear, get the RE-71rs, in my opinion
     
  12. turbo-joe

    turbo-joe F1 Veteran

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    it always depends where you like to drive or what are your needs
    when I go with my "red cars" I need max. traction when dry. no need to go by rain. sure, they have to warm up first, but then they are great. for "normal" traffic use there are better ones of course

    what you understand under: 200 tread wear? what means those 200?
     
  13. Auraraptor

    Auraraptor F1 World Champ
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    I’m sorry I don’t understand your comment.
    If you want the maximum performance here in the US you buy a 180-220 tread wear tire. For the 512TR, only 2 tires are available in that size. The Yokohama is a fine tire, but needs heat to function and has spongy steering. The Re-71rs is a newer compound of the general category
     
  14. turbo-joe

    turbo-joe F1 Veteran

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    sorry, I not know what you mean under 180 - 220 tread wear. never heard about this.
    tread wear I know, but never herad about this with numbers? so not usual in europe.
     
  15. EZORED

    EZORED Formula 3
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    Aurarptor, All you have to do is get the correct outside diameter. I have been running them for 3 years, and my speedo is spot on. These are analog cars, and I don't think that 1/2 in width or diameter is going to make a difference. The P4s is one of Michelin's newest design, and I am sure that the tec. in that tire more than makes up for any insignificant size difference. P4s are now spec on many high performance cars such as the new corvette.

    Make sure you change your belts every 3 years! LOL!
     
  16. Auraraptor

    Auraraptor F1 World Champ
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    #17 Auraraptor, May 2, 2022
    Last edited: May 2, 2022
    Beyond the diameter you will introduce a very different steering understeer/oversteer balance to your car. If you are driving at 5/10, you will mostly be fine (until your not). I would be very careful with changing that balance in a mid engine car with no traction control.

    you are correct though that as long as you keep the overall diameter the same, you’re straight line balance should be the same. If you drop the height slightly, the high speed balance gets really really off (Aka avoid driving over 100/120mph)

    I agree the 4S is a great tire. I’m trying to make 19in wheels so I can run it too

    I am not sure what belt changes have to do with basic chassis balance. This is not any mystical voodoo, You can use the exact same trick (but in the other direction ) to help balance out the 348 chassis.
     
  17. sccchiii

    sccchiii Karting
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    ba ha ha ha, you would think some of you are auto crossing your 512s?? Michelin PS2s are all the tire you need on the 512TR, unless you are going to skidpad everyday??? Tried Extreme contacts and dumped them after 6 months, they got horrendously loud on almost all driving and roads and offered no more grip than the PS2s up to 80% levels.
     
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  18. Auraraptor

    Auraraptor F1 World Champ
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    Strange, continentals have been fairly quiet on all my cars, including my wifes DD...
     
  19. sccchiii

    sccchiii Karting
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    My experience is that continentals weren't as quiet as Michelin's out of gate and got rapidly worse, ironically another 512TR owner on here made same change after driving mine with PS2s. Ultimately, based on how most are using the car these days the tire's wet performance is probably a bigger differentiator than dry grip with whats available now. I'm also told that we might a lose a few of the available tires manufacturers in the sizes we need so better think about getting replacements when everyone can.
     
  20. Auraraptor

    Auraraptor F1 World Champ
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    #21 Auraraptor, May 2, 2022
    Last edited: May 2, 2022
    Interesting. I am on 10k and ~3-4 years on extremecontact sports with no issue with tire noise on my E31 (similar tire size too). My wife's car only has 1-2k miles on them so its still early to say.

    For me its the braking and steering feel/feedback that really distinguishes the different tires, more so than grip. With the number of boneheads driving out there, anything that gives me a little better braking performance and control is piece of mine.

    Yes, the number of tire options is very limited, unfortunately. I have made multiple requests to Michelin to release P4S in the correct rear with deaf ears. Its even worse for my diablo...no one makes anything for that car anymore. Bridgestone teased maybe releasing a few tire in correct 335 rear only to forgo when finalized.

    Edit in retrospect my old Z4 (also on the continentals) did have a lot of tire noise compared to the PS2 I had swapped off! Cleaning up the cobwebs of my mind... I would imaging its worse on a TR with its (lack of) sound proofing, exhaust not withstanding....

    PS the RE-71RS should be the same class of tires (but with *much much* cold performance) as what you have on your 360CS
     
  21. dinos

    dinos Karting

    Jan 6, 2013
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    I have the standard rims, with tire sizes 235/40/18 and 295/35/18.
     
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  22. dinos

    dinos Karting

    Jan 6, 2013
    107
    Athens - Greece
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    Dinos
    I have the standard size as you mention.
    The problem is that unlike USA ( that from what I see from all your postings there is a choice ! ) in Europe the options are very limited.
     
  23. Auraraptor

    Auraraptor F1 World Champ
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    In Europe last I checked the only real options were PS2 and Pirelli. Between the two, go PS2
     
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  24. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
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    It's a UTQG Standards rating that tries to indicate how long the tread will last:

    https://www.tirerack.com/tires/tiretech/techpage.jsp?techid=48&gclid=8aec9f1459e519f9081ffd60f865090c&gclsrc=3p.ds&ef_id=YnShjAAABIOEPRNr:20220506041820:s

    ~200 is a soft high performance tire that will wear out fairly quickly.

    Most "regular" car tires are more like in the 600-700-800 range. The BF Goodrich 16" tires that a lot of us USA TR owners use have a 340 treadwear UTQG rating.
     
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