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08-12-2014, 10:17 AM | #1 |
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best offset for 18x11 rear?
I'm looking to run a wide tire I've seen someone running +34 with a 315 r888 on kw clubsports i would like to do something like this……what offset are you guys running
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08-12-2014, 10:41 AM | #2 | |
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Pics are here http://www.m3post.com/forums/showthr...ght=tunerworks not sure a 315 would work
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08-12-2014, 10:51 AM | #3 |
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18x11, offset 18, 285 tires
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08-12-2014, 11:19 AM | #4 |
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18x11 et18 - 285/35/18 max tire size (I have fit Michelin PSS in this spec)
18x11 et25 - 295/35/18 max tire size (I have fit BFG G-Force Rivals in this spec - slightly rubs the plastic fender liner protrusion on big dips but doesn't hit anything painted) 18x11 et30 - 305/35/18 max tire size (I have not actually fit tires in this spec - this is an educated guess based on the many fitments that I have tried and what I have observed others fit) All of the above depends on tire brand (some brands run wider, more square, more rounded, etc.) and ride height / alignment settings. I have no idea what offset is necessary to fit a 315/30/18. I do know that IND has been pulling fenders to fit that tire size on 10.5" et22 wheels... I think a 11" +34 has a reasonable chance of fitting but you may actually start running into inner clearance issues.
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08-12-2014, 12:36 PM | #5 |
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34- offset on a 18x11 will fit a 315 no problem. i just sold these not to long ago.http://www.m3post.com/forums/showthr...ight=forgeline
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08-14-2014, 02:15 AM | #6 | |
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08-14-2014, 08:33 AM | #7 |
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Great choice!Cant wait to see pics!
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08-20-2014, 12:50 PM | #12 |
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if you want to run wider tire with 19x11 or 18x11 i suggest running a +33 offset. specially if your thinking of going 315...
Im running 19x11 offset +33 on 305 and still have a little space for 315 size.. keep in mind that some tires run wide so you may rub slightly on a 315...
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08-20-2014, 07:04 PM | #13 | |
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08-20-2014, 07:21 PM | #14 |
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08-20-2014, 07:23 PM | #15 | |
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Here are some pictures to show you how the 295/35/18 Rivals fit on a 10.5 et25 wheel. This is the most aggressive wheel and tire I have been able to fit (I also fit the same tire on 11"et25 wheels). My rear camber is -2.0. Any more aggressive offset will cause the tire to rub the painted fender. I'm honestly amazed that they aren't rubbing with my et25 wheels.... There is literally 1mm of clearance at the trouble spots (with 5mm at the top). I tested this set-up on the track and everything worked great; no rubbing on the track. It is rubbing the fender liner where the bumper and fender intersect but that its only happening on big dips and it's the inner plastic that is inconsequential.
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08-20-2014, 08:13 PM | #16 | |
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the r888 315 isn't that much bigger then the 305 r888 if you look at the specs on tire rack also its only 25.5 inch tall that will help. I'm picking them up tomorrow so i will check everything and take it for a drive and report back |
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08-20-2014, 08:15 PM | #17 | |
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08-20-2014, 10:06 PM | #18 |
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08-21-2014, 02:30 AM | #20 | |
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camber i am but i have no idea how much just a normal amount not to much |
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08-22-2014, 09:25 PM | #21 |
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08-22-2014, 10:17 PM | #22 |
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Will definitely need to change spring or add 10mm spacer.
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