Magic offset number for 11" wheel rear

Discussion in 'SRT Hellcat Wheels and Tires' started by BAADCAT, May 19, 2016.

  1. BAADCAT

    BAADCAT Senior Hellcat Member

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    What's the magic offset number for 11" rim in the rear? I know the 10.5" is 27mm. I would like to squeeze that extra half inch in there if I can.
     
  2. SRT HC

    SRT HC BANNED

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    Easy to calculate if you know the limits on back space and front space
     
  3. Tire God 2.0

    Tire God 2.0 Senior Hellcat Member

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    My guess would be 15mm.
     
  4. SRT HC

    SRT HC BANNED

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    Well 20mm gives you the same back space as 27mm is on a 10.5 inch wide wheel. But that means you'll have an additional 1/2 inch of front space
     
  5. BAADCAT

    BAADCAT Senior Hellcat Member

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    Yeah that may be the problem. Don't want them poking out past the fenders and it's been lowered so make it that much tighter. probably better to stick with the tried and true 10.5/27mm. Thanks guys
     
  6. Booky

    Booky Gold Member

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  7. Tire God 2.0

    Tire God 2.0 Senior Hellcat Member

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    I'm sorry I thought it was an 11.5" rim. Probably right around 20mm.
     
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  8. DGatzby

    DGatzby Gold Member Hellcat Car Club HCC Charter Member Midwest Regional Pres.

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  9. theRealJA105

    theRealJA105 Silver Member

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    I have 11" at 26mm offset with the 305/35R20 Pirrellis. Had to heat up and shape the inner liner and the sidewall is still sticking out from the fender a little bit. I wanted to lower the car, but not now with the sidewall out past the fender.
     
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  10. DGatzby

    DGatzby Gold Member Hellcat Car Club HCC Charter Member Midwest Regional Pres.

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    That car is 1/2" lower in the back and could go lower, no problem. The beauty of that offset and the size of the 305/35 is it fits! I have tried two different types of 315/35's on 10.5" from 22-25 mm and from OEM height to -1/2", not good. Interesting is I have seen one member's car, full slammed to the lowest KW height, 25mm offset, 10.5", Nitto NT05, with my own eyes he has nearly 1/2" gap between tires and the liner!

    The point of showing the 11" at 21mm is to show the Bravado as purchased requires little or no mod and the 305/35 fits within the fender. Perfect for a drag radial set.
     
  11. BAADCAT

    BAADCAT Senior Hellcat Member

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    Billet did 315s on the 10.5 with 27mm and lowered with no problems.
     
  12. Jettster

    Jettster Gold Member Hellcat Car Club

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    Fitting 11's must take some massaging of the inner fender for sure-I ran 10" OE Replicas with 18mm offset to track last night and could hear slight rubbing on inner fender when making a sharp turn. Running 305/35/20 MT's.
     
  13. paul suloff

    paul suloff Silver Member

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  14. B5HLCAT

    B5HLCAT Rookie

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    Do you think that the Bravado Tribute 20 x 11" w 305/35/20 will fit a 2006 SRT8 Charger the same or close to it?
     
  15. dragrcr

    dragrcr Gold Member

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    Did you take the wheel off and see where it was rubbing? In my experience the tire will rub at the bottom rear of the tub first. The wheel tub mod I posted will take care of this problem without hacking the wheel tub.

    .
     

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