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    View Poll Results: 18X9 with 5.5" BS or 18X10 with 5.75" BS

    Voters
    24. You may not vote on this poll
    • 18X9. You'll never get the 10's in there without mini-tubbing.

      16 66.67%
    • 18X10. The 5.75" of backspacing will get you there.

      8 33.33%
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    Results 1 to 20 of 30
    1. #1
      Join Date
      Jul 2001
      Location
      Detroit, Michigan
      Posts
      6,854
      Country Flag: United States

      18X9 or 18X10 on a 1st gen with no tubs....

      It's real simple....the car is NOT mini-tubbed. On a 1968 Camaro...would you do a 2 piece wheel out back in an 18X9 or take your chances with an 18X10 with a 5.75" backspacing? Tire size would be 275/40 R18.

      Thanks for voting.

      Last edited by trapin; 06-10-2008 at 08:59 AM.
      1968 Pro-Touring Camaro LS1

      Project: Next Year
      - Start date; June '01
      - Completion; Sometime next year or the year after.....


    2. #2
      Join Date
      Aug 2007
      Location
      Snohomish,Wa.
      Posts
      364
      I always think bigger is better.... but, IMHO 9" wheels would be a better match for the 275 series tire you have chosen. If you go with a 10" wheel, I would try to step up on the tire size. Just my 2 cents tho.
      Roger

    3. #3
      Join Date
      May 2004
      Location
      Dallas, TX
      Posts
      864
      Country Flag: United States
      I voted for the 9 not because of fit but cuz I think the 275 tire looks better on a 9 than a 10.

    4. #4
      Join Date
      Dec 2004
      Location
      Greeley, Colorado
      Posts
      485
      Gonna agree here. If you're set on a 275 section width, go with the 9" wheel.

      Plus you know it'll fit with the correct backspace.

      I'd go at least a 285 on that 10" will, if not a 295.

      I know Drewhelm got a 295 on a 10" wheel to fit a factory tubbed Firebird. Although, it was '69

      on the 10 you'd have to NAIL the backspacing.
      Jason Mounce
      1969 Firebird | 2008 Corvette Z06 | 2008 Mustang GT/CS

    5. #5
      Join Date
      May 2005
      Location
      Fontana, CA
      Posts
      4,960
      Country Flag: United States
      Can you do 9.5" or are you limited by the wheel manufacturer you have chosen?
      Nick R.
      69 Camaro - 383, 700R4, 12 bolt 3.55, Hotchkis, Bilstein, Global West, Morris Classic
      08 HHR SS - Still Stock for now
      Do you still believe in all the things that you stood by before? Are you out there on the front lines, or at home keeping score?
      Do you care to be the layer of the bricks that seal your fate? Would you rather be the architect of what we might create?

    6. #6
      Join Date
      Aug 2005
      Location
      stockton,ca
      Posts
      246
      I dont agree at all......275/40/18's look best on 10's. You get too much sidewall buldge with the 9's. Here are my 275/40/18's on 18x10's...5.75bs. But its a 69....

      69 Camaro
      491BBC/TH400/GV OD/9"

    7. #7
      Join Date
      Aug 2007
      Location
      Snohomish,Wa.
      Posts
      364
      This is an 18x9 wheel with a 275/40 on it. Excuse the poor pic.



      Roger

    8. #8
      Join Date
      Aug 2004
      Location
      Burnaby, BC, Canada
      Posts
      1,388
      Go with the 10's Tony, here's a thread where Steve Chryssos got 10's on the back of his '68: https://www.pro-touring.com/forum/sh...ad.php?t=10840

      I'm running 18x10 with a 5.75" BS and 275 tire. I think it looks great.
      1969 CAMARO RS

      2002 LS1-T56 Dyno results: 452 rwhp, 425 rwtq
      Project pics of my '69
      Lateral-G Feature Page
      Camaro Performers Magazine Feature

    9. #9
      Join Date
      Jul 2001
      Location
      Detroit, Michigan
      Posts
      6,854
      Country Flag: United States
      Well...Steevo did an 18X10 but he had to roll the wheel lips. My car is already painted, I don't want to take the chance of cracking the paint. I am going to play it safe and go 9" with the 275/40 R18. The wheel in the picture with the green car looks good to me. That was all I was worried about; how it would look. Thanks everyone for your input.
      1968 Pro-Touring Camaro LS1

      Project: Next Year
      - Start date; June '01
      - Completion; Sometime next year or the year after.....

    10. #10
      Join Date
      May 2008
      Location
      Lynn Haven, FL.
      Posts
      48
      Do these tire/wheel sizes hold true for a 69 Camaro, or is the BS different?

    11. #11
      Join Date
      Aug 2004
      Location
      Burnaby, BC, Canada
      Posts
      1,388
      Tony, you should be able to do 9.5's without rolling, but you can also trim the lips with a cutoff wheel. Trust me you'll like the look of the wider wheel much better.
      1969 CAMARO RS

      2002 LS1-T56 Dyno results: 452 rwhp, 425 rwtq
      Project pics of my '69
      Lateral-G Feature Page
      Camaro Performers Magazine Feature

    12. #12
      Join Date
      Aug 2005
      Location
      stockton,ca
      Posts
      246
      Quote Originally Posted by Rybar
      Tony, you should be able to do 9.5's without rolling, but you can also trim the lips with a cutoff wheel. Trust me you'll like the look of the wider wheel much better.
      X2....I get asked all the time if its minitubed or not.
      69 Camaro
      491BBC/TH400/GV OD/9"

    13. #13
      Join Date
      Aug 2006
      Posts
      381
      Country Flag: United States
      I agree with rybar, wider wheel would look much nicer. I Have a 72 camaro, and I had to roll the fender lip and beat the hell out of the seat belt hump, just to fit the 17x11 with 5.75" backspacing. I could of have gone with 9.5 without rolling the fender, but I like the look of the wider wheel more.
      72 Camaro RS:SOLD
      68 Camaro:
      LS6 Engine,Tremec TKO 600,5 Speed
      Complete Speedtech Subframe Kit,Speedtech Torque Arm, 9" Rearend from Strange, Wilwood Brakes, Minitubbed, Hotchkis Subframe Connectors

    14. #14
      Join Date
      Aug 2007
      Location
      Snohomish,Wa.
      Posts
      364
      Wider wheels do look better normally, but if the wheel is wider than the tire, it looks awkward. If you look at the 2 pics in this thread, you might see the difference. the Camaro has the same tire as the ugly green car(mine), but it has a 10" wheel compare to the 9" wheel on my car. The 10" wheel would look better with a wider tire (IMHO)
      Roger

    15. #15
      Join Date
      Apr 2006
      Location
      Huntington Beach, CA
      Posts
      2,420
      Country Flag: United States
      Is the 10" rim really wider than the tire though? I just bought a set that I haven't received.

      But if you look at the tirerack data for a 275 as follows:

      275/40ZR17
      Load Index 98 = 1653lbs (750kg) per tire
      Speed Rating “Y” = 186mph (300kph) 98Y SL Treadwear: 300
      Traction: AA
      Temperature: A300 AA A
      1653 lbs.
      44 psi
      10/32"
      30 lbs. rim width - 9-11"
      9.5"
      sect width - 10.9"
      NA
      25.7"
      810

      from that the tire is supposedly 10.9" wide and can fith 9"-11" rims so 10" is right in the middle :p
      Please Subscribe to the AutoXandTrack YouTube Channel

      Autocross and track blog about running autocross and track events with pro touring cars

    16. #16
      Join Date
      Jan 2006
      Posts
      1,747
      Country Flag: United States
      Tony,

      I have 17x9's on my 68 with 275/40-17's. The tire doesn't "bulge" out to me. I am very pleased with how they fit on my car. I do however get some rubbing on the inside wheel well when turning into a steep driveway. I have had zero problems rubbing on the outside, running Hotchkis TVS all round. I'll gladly post pics if you're interested.
      GeoffP
      68 Camaro - LS1/T-56

    17. #17
      Join Date
      Aug 2005
      Location
      stockton,ca
      Posts
      246
      The 275's look fine on anything from 9"-10" wide. But....if you are after the BEST look......10's all the way.
      69 Camaro
      491BBC/TH400/GV OD/9"

    18. #18
      Join Date
      Aug 2004
      Location
      Burnaby, BC, Canada
      Posts
      1,388
      Quote Originally Posted by 72tunaboat
      Wider wheels do look better normally, but if the wheel is wider than the tire, it looks awkward. If you look at the 2 pics in this thread, you might see the difference. the Camaro has the same tire as the ugly green car(mine), but it has a 10" wheel compare to the 9" wheel on my car. The 10" wheel would look better with a wider tire (IMHO)
      I personally think the 10" wheel and 275 tire look perfect. I don't think you can get much bigger or better looking for a stock tub 1st gen Camaro:

      1969 CAMARO RS

      2002 LS1-T56 Dyno results: 452 rwhp, 425 rwtq
      Project pics of my '69
      Lateral-G Feature Page
      Camaro Performers Magazine Feature

    19. #19
      Join Date
      Jan 2006
      Location
      Houston, Tx
      Posts
      1,004
      Country Flag: United States
      You could split the difference... 9.5" rim :D



    20. #20
      Join Date
      May 2008
      Location
      Mesquite Texas
      Posts
      319
      Quote Originally Posted by GeoffP
      Tony,

      I have 17x9's on my 68 with 275/40-17's. The tire doesn't "bulge" out to me. I am very pleased with how they fit on my car. I do however get some rubbing on the inside wheel well when turning into a steep driveway. I have had zero problems rubbing on the outside, running Hotchkis TVS all round. I'll gladly post pics if you're interested.
      GeoffP, I am interested in what that looks like.
      What back spacing is that your using?
      What about your front wheels and tires?
      Pics please!

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