P Zeros: just 20 mm...

Discussion in 'SRT Hellcat General Discussions' started by rw99, May 5, 2015.

  1. rw99

    rw99 Silver Member

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    20 mm. Less than an inch. 275 vs 295. You'd think it wouldn't be that obvious.

    But I noticed it in my own garage, as the adjacent stablemate wears P Zeros in 295/30 on 20 inch wheels:

    [​IMG]

    Whenever we light up the rears unintentionally, we consider buying some more contact patch on the rear. And now I'm thinking about it every time I stand in the driveway...


    Rich
     
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  2. American Muscle

    American Muscle Silver Member

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    I haven't checked it out but do you know if 295's would fit on a 9.5 wheel? I have never been a fan of Pirelli's. They just seem like a harder tire. Now Michelin's are the way to go.
     
  3. Tannehill

    Tannehill Silver Member

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    yes, GT500 guys are putting 295 Michelin Pilot Super Sports on the back. There are a couple difference versions of the Michelin PSS in the same size. Porsche spec version and Ferrari version. The Ferrari version are a tad wider.
     
  4. JeKo

    JeKo Gold Member

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    They fit easily. You can go up to a 305
     
  5. Tannehill

    Tannehill Silver Member

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    not safely
     
  6. redkey

    redkey Senior Hellcat Member

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    I get the impression you've heard a horror story or two about 305's? is that the case?

    I'd rather go wider as well but of course there are limits.
     
  7. Tannehill

    Tannehill Silver Member

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    not directly, but manufacturers provide specs on the width of rim their tires should go on, for a 305 nearly every one will say no SMALLER than a 10.5".

    Just because a tire will fit, does not mean it is safe or optimal. 305 drag radials are different than running an all around summer street performance tire at 305. You know why you have them on there, for straight line performance in specific weather conditions. Try driving in all conditions, in all types of spirited driving on 305 summer street tires and you'll probably end up in an unwanted position sooner or later.
     
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  8. redkey

    redkey Senior Hellcat Member

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    I hear ya
     
  9. American Muscle

    American Muscle Silver Member

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    Okay I check Tire Rack and all the manufacturers recommend a minimum of a 10" rim for 295's and a 9.5" rim for 285's So there are the recommendations from the manufacturers. How do I know, I read it on the internet...Bonjour.
     
  10. rw99

    rw99 Silver Member

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    We're kinda seeing the opposite on Vipers. P Zeros and P Zero Corsas are gaining popularity over the PSS and Sport Cups, and were extensively tested against their Michelin counterparts. This is welcome news, because Michelin has discontinued producing Cups for Viper fitment.

    I just finished a couple of days at Spring Mountain, running Corsas for the first time on my ACR. Hands down better than the Cups on the track, IMO. We had good asphalt, 75-86 F ambient temps. Once the pressures were right, the Corsas were excellent... I developed more confidence in them at the limit of adhesion, compared to Cups. More predictable. Also kinda shocked by their compliance when on the highway (gas runs :D) with the shocks still tight; the Corsas are nowhere near as punishing as the Cups were.

    Sadly, SRT is not working with Pirelli to make a Corsa in Hellcat fitment. I've asked.

    PSS are excellent performance tires for cars that might see a little rain or low temps, I agree.


    Rich
     

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