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2009-2014 Cadillac CTS-V Performance Mods Discussion, Pilot Super Sport alternate sizes in Cadillac CTS-V Series Forum - 2009-2014; ^^^This.^^^...
  1. #16
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    Re: Pilot Super Sport alternate sizes

    ^^^This.^^^

  2. #17
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    Re: Pilot Super Sport alternate sizes

    Quote Originally Posted by Dale Pittman View Post
    Yes, They look and work great.
    Front. 265/35/19
    Rear. 305/30/19
    This is what I run as well

    https://picasaweb.google.com/lh/phot...eat=directlink

  3. #18
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    Re: Pilot Super Sport alternate sizes

    Quote Originally Posted by EVIL_C5 View Post
    I just tried another new size of the Michelin Super Sports on a friends 2011 CTS-V Sedan and they fit and work great:

    Front: 275-35-19
    Rear: 305-30-19

    The 265's Michelin Super Sports are on back order until Dec 30, so I went with the slightly wider and taller 275's to see how they might fit and work, since they were in stock.

    On the front I actually like the 275's slightly taller (26.6" tall) and wider look than the 265's (26.3" tall) and they fit with no suspension or wheel mods, on the stock 9.0" wide front wheels. They are closer to the vertical suspension arm than the stock 255's and the 265's, but still enough clearance to work fine.

    If I were to do this again this is the size combo I would go with, so I am sharing this here so others can benefit from this info. You will be real happy with the look, smooth ride, and great steering feel and performance. Also, with a tread wear rating of "300" they may even last a few summers. Adding an inch of tire width to both the front and rear gets rid of that under sized tire look that all stock CTS-V's have. Even though John Heinricy told me a few weeks ago the theory behind the stretched smaller width sized stock tires, I told him thats great to get every last hundreth of a "G" for a track day but if you asked 10 V owners how the tires looked, I bet that more than 8 of them would say the tires look too small in width for the stock wheels. IMO, I am willing to give up a few hundreths of a "G" in max cornering performance to have a tire that looks like it belongs on these cars. Take Care,

  4. #19
    newcadman is online now Cadillac Owners Enthusiast
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    Re: Pilot Super Sport alternate sizes

    Quote Originally Posted by Dale Pittman View Post
    I just tried another new size of the Michelin Super Sports on a friends 2011 CTS-V Sedan and they fit and work great:

    Front: 275-35-19
    Rear: 305-30-19

    The 265's Michelin Super Sports are on back order until Dec 30, so I went with the slightly wider and taller 275's to see how they might fit and work, since they were in stock.

    On the front I actually like the 275's slightly taller (26.6" tall) and wider look than the 265's (26.3" tall) and they fit with no suspension or wheel mods, on the stock 9.0" wide front wheels. They are closer to the vertical suspension arm than the stock 255's and the 265's, but still enough clearance to work fine.

    If I were to do this again this is the size combo I would go with, so I am sharing this here so others can benefit from this info. You will be real happy with the look, smooth ride, and great steering feel and performance. Also, with a tread wear rating of "300" they may even last a few summers. Adding an inch of tire width to both the front and rear gets rid of that under sized tire look that all stock CTS-V's have. Even though John Heinricy told me a few weeks ago the theory behind the stretched smaller width sized stock tires, I told him thats great to get every last hundreth of a "G" for a track day but if you asked 10 V owners how the tires looked, I bet that more than 8 of them would say the tires look too small in width for the stock wheels. IMO, I am willing to give up a few hundreths of a "G" in max cornering performance to have a tire that looks like it belongs on these cars. Take Care,




    With 305/30/19 being taller than stock aren't you losing some rear gear and altering the speedo ?

  5. #20
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    Re: Pilot Super Sport alternate sizes

    Actually the 305/30/19 are shorter than the stock 285/35/19, by maybe 0.3" however if you run the 305/35/19 M/T drag radials they are taller than stock by about the same amount or more.

    Yes the up and down sizes may tweak the spedo by a few mph, but if needed it can be fine tuned in the ECU program fairly easily to be more accurate. The gear ratio is also affected by a small amount, but on a 600+ WHP car its all about controlling the traction, the gearing is not as much of a constraint, IMO.

  6. #21
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    Re: Pilot Super Sport alternate sizes

    Thanks for the info Dale! Awesome

  7. #22
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    Re: Pilot Super Sport alternate sizes

    Dale, I was just ready to pull the trigger on OEM size PS2's due to not finding a better combo that made sense, you just swayed me in the direction I was looking, THANKS!!

  8. #23
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    Re: Pilot Super Sport alternate sizes

    I had 275/40 18 PS2s on 9.25" widened stock rear rims on my V1. So 275 on a 9" rim isn't too bad. I had thought of these myself, but I think I'm going to get TSW Nurburgrings in 20" instead and may sell my stockers...

  9. #24
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    Re: Pilot Super Sport alternate sizes

    Sorry for grave digging, but it appears that the front tire size for our car is now available.

    http://www.tirerack.com/tires/tires....SSXL&tab=Sizes

  10. #25
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    Quote Originally Posted by muohio
    Sorry for grave digging, but it appears that the front tire size for our car is now available.

    http://www.tirerack.com/tires/tires....SSXL&tab=Sizes
    I was about to smack you when I saw the size highlighted. Then I scrolled to available sizes. Now, I want to hug you. 1 down, 1 to go...

  11. #26
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    Re: Pilot Super Sport alternate sizes

    Sorry about that Guess I posted the wrong link.

    Anyways, now we can go with the factory front size and 305/30/19 in the rear.

  12. #27
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    Re: Pilot Super Sport alternate sizes

    They have them in 255/40/19 and 295/35/19 on the michelin canada site. This is what im gonna try. It is .1" taller in the rear and you will not need to lower the car as the gap will not change as opposed to the 305/30/19 set up. Part # 16126 for the front and # 10261 for the rear.

  13. #28
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    Re: Pilot Super Sport alternate sizes

    I am looking at another combo i might go with. Move the rear wheels to the front (spacer required i think) with 275/35/19 and widen the front wheels to 10.75" ( spacer needed) and put 325/30/19. Minimum for the 325/30/19 is 11" wheel so this combo might work. Plus the extra 2.3" tire width compared to stock tire will help with traction What do you guys think?

  14. #29
    lilred is offline Cadillac Owners Fanatic
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    Re: Pilot Super Sport alternate sizes

    I think they intend to release them in our rear size some time later this year or early next year. At least that is what I am hoping. I should be due for tires in about a year.

  15. #30
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    Quote Originally Posted by muohio
    Sorry about that Guess I posted the wrong link.

    Anyways, now we can go with the factory front size and 305/30/19 in the rear.
    I would feel better with 305/35 19 but that is not awful...

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