Will 488 or 458 wheels work on a California T? | FerrariChat

Will 488 or 458 wheels work on a California T?

Discussion in 'California/Portofino/Roma' started by SRGN, Sep 11, 2020.

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  1. SRGN

    SRGN Rookie

    Apr 26, 2020
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    Steve Lising
    #1 SRGN, Sep 11, 2020
    I've found some second hand 488 GTB wheels that I'm hoping will fit on my California T but due to the offset of the rears I think the rears might be too wide to fit in the arches (I estimate the rears will be sitting about 22-24mm wider than stock). I don't have any practical way of just trying them on since they're (literally) on the other side of the country and I don't know anyone local with the same wheels that would be happy to let me try theirs on my car....
    If 488 wheels don't fit has anyone had any luck fitting 458 wheels on a California T (there is one thread about it but it didn't specify if any modifications were required to get them to fit). The offsets of 458 wheels are closer to the offsets of stock California wheels.
    Thank you for any advice you have!

    Bolt Pattern 5x114.3 and Centre Bore 67.1mm are the same for all the wheels

    California T specs:
    Front Tyres 245/35 ZR20 Wheels 20x8 Offset ET44
    Rear Tyres 285/35 ZR20 Wheels 20x10 Offset ET52

    488 GTB specs:
    Front Tyres 245/35 ZR20 Wheels 20x9 Offset ET44
    Rear Tyres 305/30 ZR20 Wheels 20x11 Offset ET38

    458 offsets:
    Front ET46
    Rear ET58
     
  2. Redneck Slim

    Redneck Slim Formula 3
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    #2 Redneck Slim, Sep 11, 2020
    The 305/30-20 rear tires may be too small (revolutions-per-mile too high) to avoid upsetting the abs and other electronics. You could use 315/30-20 or 325/30-20,both of which work on an 11" rim. The ideal size is 335/30-20,which I use on a 12" rim.
     
  3. Il Co-Pilota

    Il Co-Pilota F1 Veteran

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    #3 Il Co-Pilota, Sep 11, 2020
    Last edited: Sep 11, 2020
    488 rears will not fit without quite some poke. Look at it this way, you can only use 17mm rear spacers on OE wheels without poke. The 38mm offset is way too aggressive. The combination of an 11" wide rim and 14mm offset will push the rim lip 27mm out. It will poke and it will rub when you go over bumps.

    The 458 wheels with 10mm spacers will fit.

    All that being said, neither the 458 or 488 wheels are rated to carry the weight of a Cali.

    If you are looking for something different, I would suggest FF wheels.

    If you want to run the wide wheels and tyres in the rear Redneck Slim suggest, you need a deep offset. 335 on a Cali is not a good size all things considered. It will understeer into next week unless you run an equally wide front.

    If you look into FF wheels which is a direct fit, use 255/35R20 front and 295/35R20 MPS4S in the rear. It will look veey good with more rubber in the arches and it will improve lateral grip, plus balance the car ever so slightly more towards neutral handling. All of this is a good thing in a Cali T.

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    SVCalifornia likes this.
  4. LeoNewland

    LeoNewland Karting

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    #4 LeoNewland, Sep 12, 2020
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  5. Il Co-Pilota

    Il Co-Pilota F1 Veteran

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    #5 Il Co-Pilota, Sep 12, 2020
    Again I stress the fact that the 458 wheels are not rated to the weight of a Cali. If you hit a pothole and lose control of the car due to a blowout, the court will have a field day with you, and you will be held liable for any potential injury to others. Your insurance can easily walk away from you and leave you hanging as your car was fitted with wheels with inferior load bearing capacity.

    I understand the urge from those who are trying to sell their wheels, but don't be foolish.

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  6. SLViper1

    SLViper1 Formula Junior
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    #6 SLViper1, Sep 13, 2020
    Cali T 3814 lbs
    458 3450 lbs
    Diff 364 lbs or 91 lbs per wheel
    Both high performance sports cars with top speeds @ 200 mph.
    If taking your mother in law for a ride in your 458 puts you over the safe load limit for the wheels,I would think Ferrari would have liability? IMHO
    Disclaimer: I am not an attorney or engineer.
     
  7. SRGN

    SRGN Rookie

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    Steve Lising
    #7 SRGN, Sep 13, 2020
    Thank you all for the great advice!!
     
  8. Redneck Slim

    Redneck Slim Formula 3
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    #8 Redneck Slim, Sep 13, 2020
    What tires sizes did you use front and rear.
     
  9. SAFE4NOW

    SAFE4NOW F1 Veteran
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    #9 SAFE4NOW, Sep 17, 2020
    ....
     
  10. SAFE4NOW

    SAFE4NOW F1 Veteran
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    #10 SAFE4NOW, Sep 17, 2020
    Front: 245/35 ZR20 ( 95Y )
    Rear: 285/35 ZR 20 ( 104 Y )
     

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