Question regarding spacer
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2009-2014 Cadillac CTS-V Appearance Mods Discussion, Question regarding spacer in Cadillac CTS-V Series Forum - 2009-2014; ...
  1. #1
    Trionalaw is offline Cadillac Owners Fanatic
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    Question regarding spacer

    Iím installing 275/35/19 and 305/30/19 on my stock wheels on my 2012 CTS V Coupe. I understand spacers are recommended. I note I can get 11 mm for the front and 15 mm for the back. Some suggest running 15 mm all the way around.

    I do not drag race the car. Rather, I take it to driving schools. Obviously, Iím looking for road course handling.

    Any suggestions would be greatly appreciated.

    Thanks so much,

    Jim

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  3. #2
    Rule12b's Avatar
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    Re: Question regarding spacer

    Quote Originally Posted by Trionalaw View Post
    I’m installing 275/35/19 and 305/30/19 on my stock wheels on my 2012 CTS V Coupe. I understand spacers are recommended. I note I can get 11 mm for the front and 15 mm for the back. Some suggest running 15 mm all the way around.

    I do not drag race the car. Rather, I take it to driving schools. Obviously, I’m looking for road course handling.

    Any suggestions would be greatly appreciated.

    Thanks so much,

    Jim
    So, as I mentioned in another thread. I run the OEM wheels but not precisely OEM set up. I widened the fronts and moved them to the rear, now 19x11. The rear OEM's I moved to the front. I run a fairly wide spacer on the rear (either 12 or 15 mm I think) and a smaller one up front (no idea). There is no rubbing, period. I'm only selling the complete set up because the car is getting set up for track-only duty. The handling is much improved with the bigger rubber.

    Now, on stock OEM's, I was under the impression that you can run the sizes you mentioned without any issues, but again, I'm not an authority on that since I didn't try it. I have read I think a lot of posts with people running those sizes on OEM setups without issues.

  4. #3
    Trionalaw is offline Cadillac Owners Fanatic
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    Re: Question regarding spacer

    Thanks for your input. I ordered 15 mm spacers all the way around because I wanted to keep the same ratio between the front track and the rear track. Why? I don't know! Probably like what Emerson said in Self Reliance "A foolish consistency is the hobgoblin of little minds."

  5. #4
    the blur's Avatar
    the blur is offline Cadillac Owners Enthusiast
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    Re: Question regarding spacer

    Do you need longer studs with the spacers ?
    do you loose the hubcentric effect with spacers ?
    will they clear without spacers ?

  6. #5
    Rule12b's Avatar
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    Re: Question regarding spacer

    Quote Originally Posted by the blur View Post
    Do you need longer studs with the spacers ?
    do you loose the hubcentric effect with spacers ?
    will they clear without spacers ?
    The spacers are hubcentric. Good question on studs I don't recall but can find out. I think they are stock but they may not be. No, my set up will definitely not clear without the spacers.

  7. #6
    the blur's Avatar
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    Re: Question regarding spacer

    Quote Originally Posted by Rule12b View Post
    The spacers are hubcentric. Good question on studs I don't recall but can find out. I think they are stock but they may not be. No, my set up will definitely not clear without the spacers.
    I just got my V, so I'm asking 10 zillion questions. I'm not looking for every tenth of a second, just looking for a solid track day setup. thanks

  8. #7
    Rule12b's Avatar
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    Re: Question regarding spacer

    Quote Originally Posted by the blur View Post
    I just got my V, so I'm asking 10 zillion questions. I'm not looking for every tenth of a second, just looking for a solid track day setup. thanks
    Well then you are in the right place to ask 10 zillion questions. I'm happy to help. Just sorry you are East Coast so you can't hit a Challenge event with us out here. Ask away, lots of good info here.

  9. #8
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    thebigjimsho is offline Cadillac Owners 10000+ Posts
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    If your spacers are small, stock studs would be fine. Beefier spacers should have longer studs...

  10. #9
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    Re: Question regarding spacer

    I ran 11mm spacers on my sedan, but I had longer studs. Not sure how much spacer you can run without needing longer studs? If you're going to a road course, might be worthing looking into getting longer studs if you're planning to run spacers.

    I have 4 11mm spacers if any are looking for some...

  11. #10
    Betiwin is offline Cadillac Owners Member
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    Re: Question regarding spacer

    If they are bolt in hubs centric spacers longer studs are not necessary. I run 15 MM all the way around. Your stock wheels have holes in the back to accommodate this.

  12. #11
    the blur's Avatar
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    Re: Question regarding spacer

    A picture would probably help.

  13. #12
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    Re: Question regarding spacer

    Quote Originally Posted by the blur View Post
    A picture would probably help.
    Well here is the OEM widened switch. . .

  14. #13
    Trionalaw is offline Cadillac Owners Fanatic
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    Re: Question regarding spacer

    Ordered the spacers from Motorsport Tech. Its owner assured me everything would work with the tires I have ordered. Spacers came in today. I will know Thursday when I take the car in to have the tires mounted.

    I will report back and take some pictures.

  15. #14
    Trionalaw is offline Cadillac Owners Fanatic
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    Re: Question regarding spacer

    Ordered the spacers from Motorsport Tech. Its owner assured me everything would work with the tires I have ordered. Spacers came in today. I will know Thursday when I take the car in to have the tires mounted.

    I will report back and take some pictures.

  16. #15
    Rule12b's Avatar
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    Re: Question regarding spacer

    Quote Originally Posted by Trionalaw View Post
    Ordered the spacers from Motorsport Tech. Its owner assured me everything would work with the tires I have ordered. Spacers came in today. I will know Thursday when I take the car in to have the tires mounted.

    I will report back and take some pictures.
    You will probably need longer studs.

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