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Update Discussion re Daytona Tires

Discussion in 'Vintage (thru 365 GTC4)' started by wilkie, Aug 1, 2020 at 6:12 PM.

  1. wilkie

    wilkie Karting

    Apr 15, 2005
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    Wilkie Cheong
    Hello,

    It's time for new tires for my Daytona, and I think this discussion needs to be updated in light of what is or is not available now. I am currently running 235/60x15 front and 255/60x15 rear on 8.5" and 9" Borranis. I am aware of the debate between original/classic design versus modern technology, but nowadays it seems the choices are more limited to what's available (and cost has to be a factor too). I see that Pirelli P600s are available from Tire Rack in 235/60x15, but not 255/60x15. Any suggestions or great ideas?

    Thanks in advance.
     
  2. miurasv

    miurasv F1 Veteran

    Nov 19, 2008
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    Steven Robertson
    #2 miurasv, Aug 1, 2020 at 6:29 PM
    Last edited: Aug 1, 2020 at 6:47 PM
    You could use the Michelin XWX 225/70 VR15 on the front and back. See link here.

    Another suggestion would be the Pirelli CN12 as used on the Aston Martin V8 Vantage and Lamborghini Miura SV, HR60 VR15 all around which are 255/60 VR 15 in size. See link here.

    Your speedo will be out using non standard size tyres.
     
  3. TTR

    TTR F1 Rookie
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    Timo
    First of all, what type of driving you do with car and how many miles annually ? 1000 ? 5000 ?
    Why is the cost a factor and in reference to what ?
     
  4. donv

    donv F1 World Champ
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    Jan 5, 2002
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    I would look at Longstone Tyres in the UK. They have all sorts of vintage Michelin and Pirelli tires. I just received some XWXs for my Mercedes 300SEL from them-- the only annoyance is that they were hung up in customs for about a week and DHL kept sending me irrelevant forms.

    One very important thing when buying unusual tires, that I've learned from unfortunate past experiences, is to have the seller verify the date codes. There is no point in buying 5 year old "new" tires. Longstone is very good about this.

    On a Daytona, I would stick with XWXs. The car and tire were developed together, and the suspension relies on the soft, thick sidewall as part of the geometry. Once you change that, you have to start making other changes as well.
     
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  5. miurasv

    miurasv F1 Veteran

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    How heavy is the steering with the bigger wheels and tyres?
     
  6. wilkie

    wilkie Karting

    Apr 15, 2005
    91
    L.A., CA
    Full Name:
    Wilkie Cheong
    miurasv and donv, thanks for your input. I considered the XWX's, but as indicated in the specs for the tire, it may be too narrow for my 9" rear wheels, although I do note that they have been used on 9" Ferrari wheels on Daytonas and Boxers. I have gotten used to the current 235/255 front/rear setup I have, but currently those sizes are not available, and definitely not in a V-rated or higher speed rating. I don't think the steering effort is appreciably heavier than in the other Daytonas I have driven. I may well have to downsize to the XWX's.

    TTR, I don't put a lot of miles on my Daytona, and I drive it usually late at night (when traffic is almost non-existent) on the streets for fun. I suppose I could safely mount new T, S or H-rated tires with the type of driving I do, but that would be blasphemous. My current tires actually still have plenty of tread, but they are getting quite old, and I don't want to risk a tire failure when I'm on the road, unlikely as it might be. As for cost, I know it may sound silly in considering the cost of tires on a car such as the Daytona, but my upbringing won't let me ignore things such things such as value and wasteful spending. Maybe that's just an excuse for being cheap.
     
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  7. TTR

    TTR F1 Rookie
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    o_O
     
  8. donv

    donv F1 World Champ
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    Cost is always an issue, to a point. However, given the importance of tires and the relative cheapness of even expensive tires, I wouldn't let that be the deciding factor. If you spend $400/tire, that's $1600, and if you keep them on the car for 10 years, that's only $160/year. Even if you want to change them every 5 years, it's only $320/year. You probably spend more on gas.
     

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