[ApexWheels]

Originally Posted by joeinsd

Hey Ryan,

Any idea what the suspension setup is with this one? Debating if I want to keep 18x9et30 front and 18x9.5et35 rear with this group buy..

That Blue E92 is on coilovers if I recall, but the suspension setup is irrelevant in terms of the rear wheel fitment. The 18x9.5" ET22 out back will require you to roll your rear fenders to prevent rubbing, and a bit of neg camber in the rear will assist in fender clearance. The 18x9.5" ET35 out back is a direct fit with no modifications required.

- Ryan

[AK.]

What's the ideal wheel size to fit 245/275's on a lowered E90 LCI? 17's or 18's is ok.

[ApexWheels]

Originally Posted by AK.

What's the ideal wheel size to fit 245/275's on a lowered E90 LCI? 17's or 18's is ok.

Do you have an absolute preference on which wheel design? Also, will the car see track time, or is this a street only setup? Looking to get a feel for what type/brand of tire you might run.

- Ryan

[AK.]

Originally Posted by ApexRaceParts

Do you have an absolute preference on which wheel design? Also, will the car see track time, or is this a street only setup? Looking to get a feel for what type/brand of tire you might run.

- Ryan

Hey Ryan,
This would be my second set of wheels. My car will be ST soon so I want to run 245/275's that can hook without rubbing. The car will be tracked eventually. I was looking into the ARC 8's only. I am also lowered on KW V2's.

[tetsuo111]

12.5mm front spacers, no rear spacers. TCK SA suspension.

Stock track width: Front - 1500mm Rear - 1529mm

Current track width: Front - 1525mm Rear - 1529mm

Haven't noticed any rubbing but it's only been one day.

Strong work, as always, Apex!

[ApexWheels]

Originally Posted by AK.

Hey Ryan,
This would be my second set of wheels. My car will be ST soon so I want to run 245/275's that can hook without rubbing. The car will be tracked eventually. I was looking into the ARC 8's only. I am also lowered on KW V2's.

Great! Based on your desired tire spec's, I suggest the following:

Front: ARC-8 18x9" ET30 - 245/40-18
Rear: ARC-8 18x9.5" ET35 - 275/35-18

* Rear fenders will need to be rolled to prevent rubbing and/or more negative camber (due to the E90 LCI limited clearance)

- Ryan

[ApexWheels]

Originally Posted by tetsuo111

Square Bridgestone S04. 12.5mm front spacers

Yess! Such a rad wagon.

[AK.]

Originally Posted by ApexRaceParts

Great! Based on your desired tire spec's, I suggest the following:

Front: ARC-8 18x9" ET30 - 245/40-18
Rear: ARC-8 18x9.5" ET35 - 275/35-18

* Rear fenders will need to be rolled to prevent rubbing and/or more negative camber (due to the E90 LCI limited clearance)

- Ryan

Thanks for the reply!
So the setup you recommend is possible to run 245/275's without rubbing on coilovers? How much camber in the front/rear ideally? My fronts are rolled and my rears are rolled/shaved/minor pull. I was highly considering getting a set of 17x9 squared. Are there any benefits of the 17's compared to the 18's?
Thanks.

[ApexWheels]

Originally Posted by AK.

Thanks for the reply!
So the setup you recommend is possible to run 245/275's without rubbing on coilovers? How much camber in the front/rear ideally? My fronts are rolled and my rears are rolled/shaved/minor pull. I was highly considering getting a set of 17x9 squared. Are there any benefits of the 17's compared to the 18's?
Thanks.

With your fender modifications, you wont even need to make camber adjustments for the sole purpose of clearing your fenders. Many enthusiasts run 255/35-18 up front with the 9" wheel and still clear the front fenders with stock camber settings. With that said, I would suggest dialing in negative camber front & rear if you plan on tracking the car.

• How often do you plan on taking the car to the track?
• What is your current experience level?
• What type/brand of tires were you planning to buy?

This will help me understand what your goals are for the car. If you're going to be pushing a good amount of power, and the car is mainly used on the street, I would stick with a staggered setup where maximizing rear end grip is the name of the game. If you were to tell me that the car has moderate power, and your were investing more of your time/money/energy into the cars suspension, brakes etc. to make it more of a weekend warrior track car, then I would suggest going with a square fitment.

Square fitments will limit your overall tire size (since the front fenders can only fit so much tire with reasonable amounts of camber), but provide enthusiasts with a very balanced car where understeer is eliminated from the equation, and wheels and tires can be effectively rotated at all corners of the car. This has a dramatic impact on the tire budget, and in an expensive sport like this, enthusiasts will save where they can. Assuming this is a double duty car with more street use, a popular square fitment would be 18x9" ET30 - 255/35-18. For hard core track enthusiasts willing to run more negative camber, we would suggest 18x9.5" ET35 - 265/35-18 or 275/35-18 (spacers needed up front for strut clearance).

- Ryan

[EJ_3]

They arrived yesterday and had them mounted this morning. Definitely came out better then expected.
18x9 et30 on 245/40
18x10 et25 on 275/35

[joeinsd]

18x9 et30, 245/40 PSS
18x9.5 et35, 265/35 PSS
Stock m-sport suspension, no rubbing.

I need to do something with that front gap though.. thought going 245 instead of 235 up front would give me a little more fill, but that gap still looks huge to me.

[JSal335is]

Sits perfect! What suspension are you running and did you have to pull on the rears?

[alphamzagil]

Originally Posted by tetsuo111

12.5mm front spacers, no rear spacers. TCK SA suspension.

Stock track width: Front - 1500mm Rear - 1529mm

Current track width: Front - 1525mm Rear - 1529mm

Haven't noticed any rubbing but it's only been one day.

Strong work, as always, Apex!

tetsuo111 I am thinking of ordering exact the same wheels for my pre-LCI 335XI Touring.
Did you have any rubbing issues in the front, as I am reading 255 / 40 / 17 square setup on your car, and this is the first time I see someone using 255 / 40 / 17 in the front, so wanna make sure.

[tetsuo111]

Originally Posted by alphamzagil

tetsuo111 I am thinking of ordering exact the same wheels for my pre-LCI 335XI Touring.
Did you have any rubbing issues in the front, as I am reading 255 / 40 / 17 square setup on your car, and this is the first time I see someone using 255 / 40 / 17 in the front, so wanna make sure.

Hi. Haven't observed any rubbing on this setup. Caveat - the car has only seen mild street use, no track time since the switch.

I'm running 2.8 degrees in front with 12.5mm spacers. The spacers allow the front tire to clear the strut as well as virtually match front and rear track widths. Obviously the tires are square, too. With stock settings, the car pushed like a plow. Now, the handling is neutral and the tail can be balanced with brake and throttle. Not like a 911, but it is a 328 xDrive after all...

[chatch10]

Originally Posted by joeinsd

18x9 et30, 245/40 PSS
18x9.5 et35, 265/35 PSS
Stock m-sport suspension, no rubbing.

I need to do something with that front gap though.. thought going 245 instead of 235 up front would give me a little more fill, but that gap still looks huge to me.

I think you've changed my mind. I was debating between staying with 235 or going to 255, but I think 245 looks perfect with those rims.

To fix the front gap you should look into lowering perches. Lowers the front 1/2" and fixes that gap. Plus, they aren't expensive and the install is simple.

[suspenceful]

Got around to installing my anthracite ARC-8s. Lowered on H&R Sport Cup kit with SP lowering perches in front.

(F) 19x8.5" ET20, 235/35/19
(R) 19x9.5" ET35, 255/35/19


E90 by Jacob Spence, on Flickr

[joeinsd]

What coilovers are known to fit with ARC8s and pre-lci e92s again? I vaguely recall seeing a list someone posted, but I can't seem to find it anymore.. I think it included an explanation of the spring/perch clearance with those coilvers too. Would appreciate it if anyone could point me in the right direction. Thanks!

[ApexWheels]

Originally Posted by joeinsd

What coilovers are known to fit with ARC8s and pre-lci e92s again? I vaguely recall seeing a list someone posted, but I can't seem to find it anymore.. I think it included an explanation of the spring/perch clearance with those coilvers too. Would appreciate it if anyone could point me in the right direction. Thanks!

All E9X 3 series are treated the same when it comes to front fitment and clearances. It specifically depends on what ARC-8 wheel specification you are inquiring about, as they all have different inner clearances depending on the width and offset. Assuming you are going to run one of the two most common front wheel options, 18x8.5" ET38 or 18x9" ET30, you typically will not see contact with most suspension offerings. KW HAS, KW variants and KW clubsports are the main "offenders" when it comes to limiting inner clearance, and thus often require small spacers for proper strut clearance. Watch out for Bilstein PSS9/10 coilovers as well.

The only real consistent threat is in regards to the few hardcore track enthusiasts that want to run the ARC-8 18x9.5" ET35 on all four corners for an aggressive rotatable square fitment. This wheel will require spacers up front with just about any suspension, but again, should be reserved for the the hard care track oriented crowd that specifically wants to run 265/35-18 or 275/35-18 square, and have no problem dialing in healthy amounts of negative camber to achieve the proper fitment.

- Ryan

[b92]

Just posted this to another thread but thought I'd leave it here!

Suspension: KW Street Comfort coilovers
Wheels: APEX ARC-8, 18x9et30, 18x9.5et22. Michelin PSS 235/40/18, 255/35/18

Rear fenders are rolled (no pull) and my camber is a -1.0 in front, -3.2 rear (max stock adjustment for my car). Still rubbing a little bit in the rear, my next step will be to tighten the rebound stiffness.

Inner clearance up front is extremely tight with my KW coilovers, ~1mm!!!

View post on imgur.com

Click through the photo for the full resolution:

[JSal335is]

Originally Posted by b92

Just posted this to another thread but thought I'd leave it here!

Suspension and wheel/tire specs are in my signature, rear fenders are rolled (no pull) and my camber is a -1.0 in front, -3.2 rear (max stock adjustment for my car). Still rubbing a little bit in the rear, my next step will be to tighten the rebound stiffness.

Inner clearance up front is extremely tight with my KW coilovers, ~1mm!!!

View post on imgur.com

Click through the photo for the full resolution:

Simple and clean.

[b92]

Originally Posted by JSal335is

Simple and clean.

Thanks, that's my goal with this car!

[ApexWheels]

Originally Posted by b92

Click through the photo for the full resolution:

Very nice b92, love the fitment and the clean execution