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18x9 Square Setup Fitment - Inner/Outer Clearance
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08-23-2013, 01:55 AM | #1 |
Second Lieutenant
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18x9 Square Setup Fitment - Inner/Outer Clearance
I've been brainstorming the ideal square setup for a 335i xdrive. I feel like the ideal setup is 18x9 with 255/35/18 all around. I'm trying to figure out if the square setup of APEX ARC 8 18x9 ET42 with 8mm spacers up front and 10mm in the rear with a 255/35/18 will work given the following facts:
An APEX Arc 8 in 18x9 et 42 with 8mm spacer up front will have 13mm LESS inner clearance than a STOCK 313 with no spacer, and extend outwards 3mm more than a 313 with a 10mm spacer in the rear. an APEX Arc 8 in 18x9 et 42 with a 10mm spacer in the rear will have 1mm LESS inner clearance than a STOCK 313 with no spacer, and extend outwards 1mm more than a 313 with a 12mm spacer in the rear. It seems like the rear is a no brainer, however would the front have inner clearance issues with the suspension being that it has 13mm LESS inner clearance than stock? also would a 255/35/18 rub on the fender given that the outer position would extend 3mm beyond that of a 313 with a spacer and a 225/40/18 tire? the goal here is for me to get a 255/35/18 Square setup with michelin pilot supersports on some lightweight 18" wheels on my 335i xdrive 6mt which will be lowered on KW v3 (just a mild drop) and UUC Sway bars without rubbing or having clearance issues _______________________ OEM 18" 313 (335iS wheels) Front 313: 18x8 ET 34 Rear 313: 18x8.5 ET 37 APEX ARC-8 Front: 18x9 ET 42 Rear: 18x9 ET 42 313 vs 313 with spacer - many people run 10/12mm spacers on these oem offset wheels with no rubbing with stock 225/40/18 and 255/35/18 tires Front 313 with 10mm spacer: 18x8 ET 24 (10mm MORE inner clearance. Extend an an extra 10mm) Rear 313 with 12mm spacer: 18x8.5 ET 25 ( 12mm MORE inner clearance. Extend an extra 12mm) ARC 8 VS 313 with 10/12mm spacer Front Arc 8: 18x9 ET 42 (31MM LESS inner clearance. RETRACT by 5mm) Rear ARC 8: 18x9 Et 42 (23MM LESS inner clearance. RETRACT by 11mm) ARC 8 with 8/10mm spacers vs STOCK 313 Front Arc 8: 18x9 ET 34 (8mm spacer) (13MM LESS inner clearance. EXTEND an extra 13mm) Rear ARC 8: 18x9 Et 32 (10mm spacer) (1MM LESS inner clearance. EXTEND an extra 11mm) ARC 8 with 8/10mm spacers VS 313 with 10/12mm spacer Front Arc 8: 18x9 ET 34 (8mm spacers) (23MM LESS inner clearance. EXTEND an extra 3mm) Rear ARC 8: 18x9 Et 30 (12mm spacer) (11MM LESS inner clearance. EXTEND an extra 1mm) Last edited by jeffblue; 08-23-2013 at 02:03 AM.. |
08-26-2013, 09:22 AM | #3 |
Colonel
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Yes it will need spacer to front. Otherwise, it wont clear inside. Minimum 5mm (this will give 5-6mm clearance to stock shocks), but that wont probably be enough with coilovers and wider tyre. Better put at least 10mm straight way. You will need negative camber if you want to use 255/35/18 at front.
18x9 et29 265/35/18 at front and negative camber. http://www.e90post.com/forums/showthread.php?t=551411
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08-29-2013, 06:55 PM | #4 |
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FWIW, I have the following setup:
- pre-LCI E90 sport (don't know how this differs with an Xi) - Front camber pins removed; ~-1.55 deg of camber - 18x9 +31 EC-7 (square) - 255/35/18 Continental DW (square) - 15mm spacers in the rear - slight rear fender roll |
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08-30-2013, 12:36 AM | #6 |
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313, apex arc 8, inner clearance, offset |
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