355 Tyre Sizes | FerrariChat

355 Tyre Sizes

Discussion in 'United Kingdom' started by subirg, Feb 24, 2004.

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  1. subirg

    subirg F1 Rookie

    Dec 19, 2003
    4,195
    Cheshire
    #1 subirg, Feb 24, 2004
    Over on the US side of FChat, the recommended size for 355 rear tyres is 275/40/18 (OEM is 265/40/18). They reckon you only need to up the tyre pressures by a Psi to restore the handling balance.

    Seems like a good idea if a. you can get a better range of tyres in that size and b. the extra rear rubber adds a bit more grip.

    DOes anyone have any experience of fitting the larger rubber???
     
  2. BigHead

    BigHead Formula Junior

    Oct 31, 2003
    995
    Outside of Boston
    Full Name:
    Dennis
    #2 BigHead, Feb 24, 2004
    See this thread:
    http://ferrarichat.com/forum/showthread.php?t=6187&highlight=355+tire

    I ended up going with 295/35-18 in the rear - it is a perfect match without spacers or clearance problems. The aspect ratio on the rear is almost identical between the 265/40 and the 295/35. The wider tire offers slightly more rear grip, offsetting the factory inclination towards understeer. You'll also find a lot more tire selection in the 295/35, compared to the 265/40.

    That thread has an XL attachment with a tire size calculator you can download.

    vty,

    --Dennis
     
  3. kenyon

    kenyon F1 Rookie

    Oct 7, 2002
    2,837
    East Yorkshire
    Full Name:
    Justin Kenyon
    #3 kenyon, Feb 25, 2004
    Bighead,

    What tyre size do you run on the front ?
    Do you have spacers on the front and what size ?
    What spacer size do you have on the back ?
     
  4. BigHead

    BigHead Formula Junior

    Oct 31, 2003
    995
    Outside of Boston
    Full Name:
    Dennis
    #4 BigHead, Feb 25, 2004
    I run stock front, and no need for spacers in the back - the 295/35 fits just fine, as is....

    vty,

    --Dennis
     
  5. GOS 348

    GOS 348 Karting

    Jan 17, 2004
    108
    Edenbridge, Kent
    Full Name:
    Chris Gosling
    #5 GOS 348, Feb 25, 2004
    Subirg

    My brother runs 275/40/18 Toyos on the rear of his 355 Spider. No spacers needed.

    No adverse effect at FOC track days last year and a damn sight cheaper than OEM tyres.
     

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