will my 315/35/20's fit?

Discussion in 'Wheels & Tires' started by Demonic5.0, Oct 27, 2019.

  1. Demonic5.0

    Demonic5.0 Active Member

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    looking to get some new wheels and i have a pair of brand new 315/35/20 nitto g2s. Can anybody tell me if they will fit w either of these wheel specs? Car is lowered on BMR perfromance springs.
    • 20" diameter
    • 10.5" width
    • 57mm offset
    • 8.00" back space

    • 20" diameter
    • 10" width
    • 50mm offset
    • 7.50" back space
     
  2. MaskedRacerX

    MaskedRacerX Driver

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    10" is a bit narrow, should be on at least a 10.5" and really an 11". The 315 is a touch wide and tall, especially if you're trying to match the front, what are you doing on that end?
     
  3. OP
    OP
    Demonic5.0

    Demonic5.0 Active Member

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    I know it should be an 11 wide, but im trying not buy new tires since these are like new. I have matching 265/35/20. I ran these tires on my forgestar f14s
     
  4. Bybcous

    Bybcous Well-Known Member

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    I have this size and 50 offser just for a reference
     
  5. OP
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    Demonic5.0

    Demonic5.0 Active Member

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    Any pics?
     
  6. Bybcous

    Bybcous Well-Known Member

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    I very rarely take pics but i took these today, i do not have any pics just showing off tire size or rims. 20191027_162358.jpg 20191027_162439.jpg
     
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  7. OP
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    Demonic5.0

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    Thanks man
     
  8. MaskedRacerX

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    Yeah, I have MRR M600s too, same offset, 305 fits nicely, I'd suspect the 315 would be pretty good, it's only a touch bit bigger.

    Though when I had my '16 (and these wheels), combined with BMR SP080s, it was pretty tight. My '19 (same wheels) I haven't touched the suspension yet, mainly because it's just so darn good with the newer PP + MR :)

    OP, here's a comparison of the 305 on my 11" ET50 vs. a 315 on a 10.5 ET57:

    upload_2019-10-28_6-46-29.png


    So I'm the orange wheel, you're the green wheel, you can see mine and @Bybcous above actually stick out a touch further (mostly to account for the extra 1/2"). It's not that easy to follow but the really squared off black lines are the 305s, and the kind of trapezoidal black lines are the 315, you can see how they're slightly bulging on the wheel. I mean, I'm sure this visualization is a bit rough, but I think it's close enough to get a sense of the fitment.

    The only thing I'd point out is that inner clearance on the 315 on the 10.5 ET57, up at the top (that's not a specific Mustang suspension or anything just a generic reference).

    (Backspace isn't input as that's just calculated from offset and width ...)

    Hope that helps, especially combined with the photos above!
     
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  9. ModularKid21

    ModularKid21 Well-Known Member

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    A 315/35/20 tire is almost 29” tall. They should fit but that’s going to be some goofy looking stance unless you’re running a similar size up front. Even so, that’s a large diameter wheel and tire regardless of what it’s going on. I’d consider a smaller size
     
  10. Bybcous

    Bybcous Well-Known Member

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    Yea i hated the way my car looked woth that tire size, happy i switched to 19s and thinner sidewall 20191028_174558.jpg
     
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  11. khsonic03

    khsonic03 Well-Known Member

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    20x11 50mm. 315/35/20

    Wanted as wide as possible for the whipple. Taller size helps too because I have 3:73s. 20191030_214007.jpg
     
  12. 10SpeedDemon

    10SpeedDemon Well-Known Member

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    Me but I have 2 degrees of camber F447D03C-E13B-46B0-B0B9-DE3C1AC8D7CE.jpeg AD2B1DB8-270B-4C2E-954A-F2CB17EBC8E2.jpeg
     
  13. OP
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    Demonic5.0

    Demonic5.0 Active Member

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    Same tires on my forgestars 20190521_201956.jpg 20190521_202503.jpg
     
  14. ModularKid21

    ModularKid21 Well-Known Member

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    That was partially my point, that the sidewall is way bigger on the rears. But you weren’t really asking about that. How wide were the F14’s?
     
  15. OP
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    Demonic5.0

    Demonic5.0 Active Member

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    20x9.5 and 20x11 i know the 315s are technically to wide for a 10.5 but they are like new, still 9/32 tread. So if i dont have to buy new tires that would be better lol. The wheels im looking at getting are 20" weld rts
     
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