F12 Improving the Handling | Page 2 | FerrariChat

F12 Improving the Handling

Discussion in 'F12/812' started by JJ77, Sep 22, 2022.

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  1. john Owen

    john Owen Formula Junior

    Dec 27, 2018
    461
    Full Name:
    John Owen
    As you're in the UK I suggest taking your F12 to Ben at String Theory Garage in Stratford-upon-Avon. He knows them well and has had clients with F12s with exactly the same handling issues you're having. Last time I was there he said one client couldn't believe how much his F12 was transformed for the better.
     
    JJ77 and Solid State like this.
  2. Frank_C

    Frank_C F1 Rookie
    Owner Rossa Subscribed

    May 29, 2004
    2,983
    Whistling through the wheat field in Texas
    Full Name:
    Frank
    And…….you may want to look into a Brooke Race Exhausts (mfg in the UK). Inconel, build quality equal if not better (as per my F dealer who installed it) than the more known aftermarket exhausts at half the price of others.


    Sent from my iPhone using FerrariChat
     
  3. sunghyun7

    sunghyun7 Formula Junior

    Oct 7, 2019
    256
    thank you. By "geometry" do you mean alignment parameters like camber & toe? When I went back to the stock springs, I took a large micrometer & measured precisely the shock length per factory manual descriptions and set all 4 corners exactly at stock height. I haven't checked tire pressure for some time. I just rely on the tpms data. I can check those manually when I return. Feedback much appreciated! Handling seems alright but I doubt I push it hard enough to notice. If I can get high speed stability straightened out, that'd be much help.
     
  4. Frank_C

    Frank_C F1 Rookie
    Owner Rossa Subscribed

    May 29, 2004
    2,983
    Whistling through the wheat field in Texas
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    Frank
    Huh, I had my F12 up to 174 mph on track- stable as could be?!?!?!?!?!?

    Yup. Definitely needs a lookover.
     
  5. sunghyun7

    sunghyun7 Formula Junior

    Oct 7, 2019
    256
    #30 sunghyun7, Sep 25, 2022
    Last edited: Sep 25, 2022
    frank, I have lifter in mine. were you using stock springs? and have you lowered it from stock height? I'm trying not to go back to Novitec. It eliminated any vagueness at high speeds, but sucked at everything else.
     
  6. day355

    day355 Formula 3

    Jun 25, 2006
    2,492
    Absolutely, "alignment", sorry for my misuse of language !
     
  7. Frank_C

    Frank_C F1 Rookie
    Owner Rossa Subscribed

    May 29, 2004
    2,983
    Whistling through the wheat field in Texas
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    Frank
    Stock springs. I did it mainly to diminish roll, with the added benefit of loosening up the rear for a little better rotation. But the main thing again was for the roll- that's the biggest difference between the Porsche GT cars and Ferraris vis a vis track suspension vs sports car suspension.

    p.s. NO, you did not misuse suspension geometry aka alignment.......
     
  8. sunghyun7

    sunghyun7 Formula Junior

    Oct 7, 2019
    256
    cool. I'll try lowering it little bit. about quarter inch in all 4 corners? Did you realign to stock alignment numbers after lowering?
     
  9. Texas Forever

    Texas Forever Eight Time F1 World Champ
    Rossa Subscribed

    Apr 28, 2003
    85,593
    Texas!
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  10. sunghyun7

    sunghyun7 Formula Junior

    Oct 7, 2019
    256
    I mean when I floor it at the cruising speed, I'm usually making a funny face at the weird half-engaged sounding transmission downshifts.. I then pull downshift paddle which take another moment to engage the 3rd gear... at that point, I'm usually already at 7k rpm in 3rd gear-so I got only about a second of good v12 music left until I have to upshift. 4th gear is my ticket to the v12 concert, but the front end feels like a bed of marshmallows. I need to fix this.
     
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  11. Texas Forever

    Texas Forever Eight Time F1 World Champ
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    Apr 28, 2003
    85,593
    Texas!
    I remember shifting from 2nd to 3rd in my Maranello by sound. I would look down and realize I was doing 110 in a residential neighborhood

    I can’t imagine doing that in a F12. How fast would you be going? 140?


    Sent from my iPhone using FerrariChat.com mobile app
     
  12. sunghyun7

    sunghyun7 Formula Junior

    Oct 7, 2019
    256
    yea 140 sounds about right on the top of 4th. I'm usually doing it on an empty freeway though! I got my valves closed & crawl in my neighborhood. Too many bored Karen's!
     
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  13. Frank_C

    Frank_C F1 Rookie
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    May 29, 2004
    2,983
    Whistling through the wheat field in Texas
    Full Name:
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    Well, we do have FMs and CRs pretty much everywhere outside of the big cities down here. Only problem is the damn animals.
     
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  14. colonels

    colonels Formula Junior

    Aug 5, 2011
    869
    while this is true the seating position, nearly on the rear axle, in the F12 makes it more like a front engine car. you will feel like it is.
     
  15. rumen1

    rumen1 Formula 3
    Owner

    Jun 23, 2012
    1,813
    Bulgaria
    I run PS4S tyres with 812 sizes on my stock F12 wheels and they are perfect. One of the main reasons on my opinion for the different behavior when turning quickly and transferring the weight of the car in corners between the front engined F12 and the rear-engined 458 for an example is not so much the weight distribution between the front and the rear axle, but the higher center of gravity, that the F12 has, compared to the 458.

    Never driven a TDF though, but a track-oriented car like this definitely should have much stiffer springs than the road-oriented F12. The main question is if you are ready to sacrifice the perfect road comfort, that the F12 offers, by fitting stiffer springs. Especially if you don't intend to track the car regularly.
     
    Altoria F likes this.
  16. JJ77

    JJ77 Formula Junior

    Oct 3, 2020
    546
    Well amazingly it’s a year since I started this thread, but finally have done a deal on an F12… Didn’t want Red, Black or White, wanted Racing Seats, Forged Wheels, No Suspension Lifter, all Carbon Interior, JBL, prefer no exterior Carbon and no passenger display. So it took awhile, and discovering in UK that they are rare cars, not just my particular wants. Found out 420 came to UK, and against 330 UK Speciales, is it rare or Speciale is not so rare. Anyway numbers kind of tally with Marcel Massini numbers of 4600 to 4700 Worldwide. Back to the thread, going to take the car standard on a trip to Scotland on roads I know well firstly, then will go TDF Springs and Geometry stage 1.. try out. Stage 2 would be lowering 10mm and Geometry, try out.. Stage 3 if needed would be to change front tyres to 265 or 275 and Geometry. I would like to feel the increments rather than do everything all at once..

    Big thanks to everyone who chipped in, especially day355, taken most from his input as he knows F12 exceptionally well. Will update when I get started.. Appreciated
     
    Bundy likes this.
  17. JJ77

    JJ77 Formula Junior

    Oct 3, 2020
    546
    As posted above, finally did a deal on a car.. really appreciated all the input but this post in particular hit the spot. Won’t rehash the above post about what I will do, but one question for you on Tyres.. do you recommend changing the front tyres to TDF 275 or 265 option? S4S what were your concerns? Thanks again.
     
  18. haithman

    haithman Formula Junior

    Aug 12, 2004
    272
    Will be following. The one nitpick I have about the F12 is the lightness and numbness of steering.
     
  19. Eilig

    Eilig F1 Rookie
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    Aug 31, 2001
    4,030
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    Tänzelndes Pferd
    Would enjoy seeing pics
     
  20. JJ77

    JJ77 Formula Junior

    Oct 3, 2020
    546
    Will do when I pick it up.. actually thinking of getting professional studio photos done as the lines of this car from Pininfarina is just stunning, especially like the Birds Eye view point.. thought this car looked so bland in 2013/14 but boy has it aged well 10 yrs later. One of Pininfarina best..and last.
     
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  21. hnoor

    hnoor Rookie

    Jul 19, 2020
    43
    After lowering my F12 on Novitec springs, a lot of the "floaty" feeling went away. Definitely recommend the springs to anyone who wants some handling improvement.
     
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  22. day355

    day355 Formula 3

    Jun 25, 2006
    2,492
    I stayed on the original dimensions, or 255 l before , which was ultimately a mistake. Jaurai to pass in 265! the F12 has the particularity of having wider tracks at the front than at the back. I lose a little grip on the front in the sinuous. At the beginning the S4S m was confused because there is an approach in terms of riding comfort that is very different from the rigidity of the Pirelli troféo. Today I am used to it, and I find the Michelin perfect, because once hot, the power goes well on the first gear, and the motor is perfect !
     
  23. rumen1

    rumen1 Formula 3
    Owner

    Jun 23, 2012
    1,813
    Bulgaria

    You can also lower the stock shocks a lot and that will also make a difference.
     
  24. Roger Barbarino

    Feb 24, 2023
    6
    Full Name:
    Wolfgang Friedrich Engel
    How can you lower the stock shocks?
     
  25. rumen1

    rumen1 Formula 3
    Owner

    Jun 23, 2012
    1,813
    Bulgaria
    They are adjustable...
     

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