Quote:
Originally Posted by CosmosMpower
So there's no way a e9x fitment EC7 18x10 ET 25 square with a 285 hoho will fit then I assume.
|
It might be possible with negative camber and rear fender rolling, but a higher wheel offset would be encouraged. The 18x10 ET25 would be very aggressive, and certainly not a bolt-on fitment. The M2 chassis presents the same issue as the F8X M3/M4 chassis, only slightly worse. These chassis do not lend themselves to wide square fitments like the E46 M3, E9X M3 and 1M. I have added the 18x10" ET33 to the list of comparisons from my previous post...
When looking at one of the OEM wheel configurations on the M2 as a baseline, 19x9" ET29 front & 19x10" ET40 rear, we can compare a couple different square options:
APEX 18x9.5" ET22
Up front, our 18x9.5" ET22 will have just about the same inner strut clearance (1mm more), and the outside edge of the wheel will EXTEND an extra 13mm towards the front fenders.
In the rear, our 18x9.5" ET22 will have 24mm MORE clearance on the strut side, and the outside edge of the wheel will EXTEND an extra 12mm towards the rear fenders.
For a street car looking for a flush fitment with street tires, this is probably a good way to go with 265/35-18 street tires. The lower offset would lend itself to a flush fitment without the need for spacers, Depending on ride height and tire brand, a small amount of neg camber may be necessary.
For a track car running r-compounds, it may be better to run our 18x9.5" ET35 wheel for more clearance to the fenders front and rear, allowing more space for r-compounds that tend to run wider then the avg. street tire. This would also allow more room should the driver want to bump up to 275's.
APEX 18x9.5" ET35
Up front, our 18x9.5" ET35 will have 12mm LESS clearance on the strut side, and the outside edge of the wheel will be at the same point.
In the rear, our 18x9.5" ET35 will have 11mm MORE clearance on the strut side, and the outside edge of the wheel will RETRACT 1mm.
With 12mm less clearance to the front struts, this fitment would likely need small spacers up front for proper strut clearance.
APEX 18x10" ET33 - Square
Up front, our 18x10" ET33 will have 17mm LESS clearance on the strut side, and the outside edge of the wheel will EXTEND an extra 9mm towards the front fenders
In the rear, our 18x10" ET33 will have 7mm MORE clearance on the strut side, and the outside edge of the wheel will EXTEND an extra 7mm towards the rear fenders
With 17mm less clearance to the front struts, this fitment would definitely need small spacers up front for proper strut clearance. Negative camber would also be a must for the front of the car.
- Ryan