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Thread: Hoosier A7 fitment on 97 M3...

  1. #1
    Join Date
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    Hoosier A7 fitment on 97 M3...

    Have read that the Hoosier A7s are a bit wider than the A6s and am wondering if I'm going to have fitment issues with a 245R40/17 on my car...ran A6s in the past with no problems.

    97 M3 with TCKline coilovers, car is lowered about an inch, rear fenders rolled, rear neg camber is about 1.75 inches. Wheels will be Kosei 17x8.5s. Have a variety of spacers on hand, 15mm, 12mm, 10mm, etc.
    Estoril/Modena '97 M3...sold for the second time.
    ------------------------------------
    You only live once, and I'm running out of time...

  2. #2
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    They should fit with the kosei’s, you might have to add a little more negative camber and fiddle around with spacers in the front.

    I had a chance to line up a 225 a7 and a 245 a6. They were the same width. So you could just get the 225/45/17’s

  3. #3
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    Quote Originally Posted by Pat533i View Post
    So you could just get the 225/45/17’s
    Thought about that, even the 225/40/17 for a slight gearing advantage on our short, tight courses, but bigger is always better when it comes to tires, right...
    Estoril/Modena '97 M3...sold for the second time.
    ------------------------------------
    You only live once, and I'm running out of time...

  4. #4
    Join Date
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    GTS3 E36, 97 M3/4/5
    The 245 A7 / R7 measure out to 265. On a 17x9 I needed a 3mm spacer out back to keep them off the inner fender liner.

  5. #5
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    Quote Originally Posted by Gene V View Post
    Thought about that, even the 225/40/17 for a slight gearing advantage on our short, tight courses, but bigger is always better when it comes to tires, right...
    Ya that’s what I’m running right now. The shorter tires plus my 3.46 rear equals 7000 rpm on Watkins Glen back straight.

  6. #6
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    I don't want to hijack the thread but I wanted to know if you guys think running Toyo Proxes RR 255/40R17 would work on Kosei 17x8.5" wheels. I know it's probably a bit better to run them on 17x9 but that size is harder to come by on the used market so I wanted to know if 8.5" wheels was still within reason for 255 tires.

  7. #7
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    Quote Originally Posted by BeeHemDoubleU View Post
    I don't want to hijack the thread but I wanted to know if you guys think running Toyo Proxes RR 255/40R17 would work on Kosei 17x8.5" wheels. I know it's probably a bit better to run them on 17x9 but that size is harder to come by on the used market so I wanted to know if 8.5" wheels was still within reason for 255 tires.
    According to Tire Rack acceptable rim width for a 255 Proxes is 8.5-10 inches...now exit my thread...
    Estoril/Modena '97 M3...sold for the second time.
    ------------------------------------
    You only live once, and I'm running out of time...

  8. #8
    Join Date
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    Iiiiiii'mmmmmmmmmmmm Ooooouuuuttttttttttttttttaaaaa Heeeee​rrrrreeeee...........

  9. #9
    Join Date
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    99 M3, 11 GT3RS
    A7's should fit.

    I am also running small spacers in the back to get them away from the inner fender...
    99 M3 STU/ GTS3 Project

  10. #10
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    I'm back. Now to add to the thread, when I bought my 95 M3 the guy was using Toyo Proxes RR 255/40 on 17x7.5" style 22 et+41 wheels (I know it's way too skinny of a wheel but that's what it came with). I have not had any issues with rubbing and my car is lowered on ground control coil overs and koni struts. I don't know if Hoosier A6/A7 245/40's on 8.5" wheels would fit wider than 255/40 Toyo proxes rr's on 7.5" wheels. I hope that helps a little bit.

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