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      05-06-2020, 11:07 AM   #287
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Quote:
Originally Posted by Rochen_00 View Post
Any spacers? What tire measurements do you use?

Thanks Apex
Thanks for the questions!

Sven is not running any spacers with these wheels. Here are his tire specs:

Front: 265/35-18 Michelin PS2
Rear: 295/30-18 Michelin PS2

I'll add this info to the OP as well.

-Tom
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      06-10-2020, 06:26 PM   #288
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Another beautiful car from CM Motorsport!

Arif's M3 is a gorgeous example in a striking Ferarri red sitting pretty on Satin Black EC-7R forged wheels.

APEX wheel info:

Front:
  • APEX 18x9.5” et22 EC-7R Forged Wheels in Satin Black
  • 265/35-18 Michelin Pilot Sport PS2
  • 10mm Spacer
Rear:
  • APEX 18x10.5” et22 EC-7R Forged Wheels in Satin Black
  • 295/30-18 Michelin Pilot Sport PS2

For additional specs and images check out our in-depth article.

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      06-24-2020, 12:41 AM   #289
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Fitment questions

Hi, I am in the middle of an E92 M3 build focusing on endurance racing and am looking for some info on wheel and tire fitment. I am looking for a square setup, I have MOTON 3W coilovers, AP racing 378mm BBK on the front, stock rear brakes. I want to run continental 305/680/18 tires but don't see many setups with that big a tire, is it possible, what would you recommend? Thanks
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      06-24-2020, 12:44 AM   #290
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18x10 et +25 EC-7 in satin black
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      06-24-2020, 05:37 PM   #291
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Has anyone ran a setup of 18x9.5 square? I know it's more common to run 10"+ wide wheels. But I was wondering if anyone had photos of this setup.
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      06-26-2020, 12:58 PM   #292
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Quote:
Originally Posted by RaceBear View Post
Hi, I am in the middle of an E92 M3 build focusing on endurance racing and am looking for some info on wheel and tire fitment. I am looking for a square setup, I have MOTON 3W coilovers, AP racing 378mm BBK on the front, stock rear brakes. I want to run continental 305/680/18 tires but don't see many setups with that big a tire, is it possible, what would you recommend? Thanks
Thanks for the question, sounds like a killer build! We run AP Essex Brakes on several of our own track/race cars, including the 6 pot 372mm CP9668 BBK on our E92 M3. Fantastic brakes. Our 18” EC-7, SM-10 and FL-5 flow formed wheels, as well as our new ARC-8R and EC-7R forged wheels for the E9X M3 will all clear those brakes no problem.

In regards to your Moton suspension, can you tell us what front spring configuration you are running? Ex. 5” main 2.25” ID springs with helper springs. Stack height and the overall suspension silhouette matters when it comes to running wide wheel and tire configurations like 10.5” or 11” square.

What tire compound will you be running, and have you taken into consideration the endurance class wheel & tire rules that you are building the car to compete in?

305/680-18 is going to be too tall with a diameter of 26.8”, and would result in serious clearance issues up front. These tall tires are commonly used on Mustangs and Camaros. If your goal is to run 305 square, then 305/645-18 is more appropriate for the E9X chassis.

OEM Benchmark
F) 245/40-18 → 25.7”
R) 265/40-18 → 26.3”

Square tire configurations that work for a track/race E9X M3:

275/35-18 → 25.6”
285/30-18 → 24.7” (short, but they work)
285/35-18 → 25.9” (About as tall as you can go up front without major modifications)
295/30-18 → 25”
305/645-18 → 25.4”
305/660-18 → 26” (Tall. Works on an F8X & might be possible on E9X M3)
315/30-18 → 25.4”

In terms of aggressive 18” wheel fitments to support the compounds listed above, we have two good options. Which is best for you will depend on a number of things like your suspension configuration, which tire size and compound you choose, and how the rest of the car is developed.

Option 1: 18x10.5” ET22 / ET27 square - Available in all APEX designs

This is the most common rotatable square setup for more serious E9X M3 track/race cars, as the 10.5” wheels provide superior sidewall support over the 10” wheels commonly found on street/weekend warrior HPDE cars. Most drivers pair these 10.5” wheels with either 275/35-18 tires to maximize sidewall support, or 295/30-18 depending on desired compound (not every tire comes in every size), driver experience, class rules, etc.

Our original ARC-8 and EC-7 flow formed designs are 18x10.5” ET27 which will require spacers up front to clear the struts, however, our newer SM-10 and FL-5 flow formed designs as well as our brand new EC-7R and ARC-8R forged designs are offered in 18x10.5” ET22 which were engineered specifically for the E9X M3.

Since ET22 is the optimal offset for a 10.5” wheel, you can run up to 295’s without the need for spacers as long as the spring stack height is appropriate (shorter 5” main springs). This wheel fitment will require negative camber up front, but these are track/race cars so that is par for the course. You can also run the 305/645-18’s on these 10.5” wheels with added negative camber, but I think most drivers would prefer running 11” wheels for proper sidewall support, especially since slicks run quite wide.

Option 2: 18x11” ET25 square - Available in EC-7 design only

This setup is typically reserved for hard core race cars and W2W racers planning to run 295, 305 or 315 compounds where maximum sidewall support is desired. Naturally, the fitment requires a little more love in the form of very aggressive camber specifications, rear fender rolling/pulling and possibly some inner clearancing work with the liners, etc. Up front, even the slimmest of suspension designs paired with short 5” springs will need spacers to clear the struts due to the sheer width of the wheel, and the spacer thickness you’ll need will depend on contributing factors like spring stack height and tire size/model (ballpark 10mm - 15mm spacers will be needed).

I hope this was helpful. Please let me know if you have any other questions!

-Tom & the BMW team
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      06-26-2020, 01:16 PM   #293
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Quote:
Originally Posted by Dr Ed View Post
Has anyone ran a setup of 18x9.5 square? I know it's more common to run 10"+ wide wheels. But I was wondering if anyone had photos of this setup.
Some of our customers do choose to run 18x9.5s all the way around! Our 18x9.5 ET22 is a direct fit for this application with either 265/35-18s or 275/35-18s.

Here are some photos a customer sent us with this exact setup. Big thanks to Santiago!

Wheel details:
  • 18x9.5 ET22 SM-10s in Satin Black, square fitment.
  • 275/35/18 RE71r's
  • 15mm rear spacer (purely for aesthetics)
  • Apex Red center caps

Additional mods:
  • H&R Race Springs
  • -1.5 degrees front and rear camber










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      06-26-2020, 11:53 PM   #294
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Quote:
Originally Posted by ApexRaceParts View Post
Thanks for the question, sounds like a killer build! We run AP Essex Brakes on several of our own track/race cars, including the 6 pot 372mm CP9668 BBK on our E92 M3. Fantastic brakes. Our 18” EC-7, SM-10 and FL-5 flow formed wheels, as well as our new ARC-8R and EC-7R forged wheels for the E9X M3 will all clear those brakes no problem.

In regards to your Moton suspension, can you tell us what front spring configuration you are running? Ex. 5” main 2.25” ID springs with helper springs. Stack height and the overall suspension silhouette matters when it comes to running wide wheel and tire configurations like 10.5” or 11” square.

What tire compound will you be running, and have you taken into consideration the endurance class wheel & tire rules that you are building the car to compete in?

305/680-18 is going to be too tall with a diameter of 26.8”, and would result in serious clearance issues up front. These tall tires are commonly used on Mustangs and Camaros. If your goal is to run 305 square, then 305/645-18 is more appropriate for the E9X chassis.

OEM Benchmark
F) 245/40-18 → 25.7”
R) 265/40-18 → 26.3”

Square tire configurations that work for a track/race E9X M3:

275/35-18 → 25.6”
285/30-18 → 24.7” (short, but they work)
285/35-18 → 25.9” (About as tall as you can go up front without major modifications)
295/30-18 → 25”
305/645-18 → 25.4”
305/660-18 → 26” (Tall. Works on an F8X & might be possible on E9X M3)
315/30-18 → 25.4”

In terms of aggressive 18” wheel fitments to support the compounds listed above, we have two good options. Which is best for you will depend on a number of things like your suspension configuration, which tire size and compound you choose, and how the rest of the car is developed.

Option 1: 18x10.5” ET22 / ET27 square - Available in all APEX designs

This is the most common rotatable square setup for more serious E9X M3 track/race cars, as the 10.5” wheels provide superior sidewall support over the 10” wheels commonly found on street/weekend warrior HPDE cars. Most drivers pair these 10.5” wheels with either 275/35-18 tires to maximize sidewall support, or 295/30-18 depending on desired compound (not every tire comes in every size), driver experience, class rules, etc.

Our original ARC-8 and EC-7 flow formed designs are 18x10.5” ET27 which will require spacers up front to clear the struts, however, our newer SM-10 and FL-5 flow formed designs as well as our brand new EC-7R and ARC-8R forged designs are offered in 18x10.5” ET22 which were engineered specifically for the E9X M3.

Since ET22 is the optimal offset for a 10.5” wheel, you can run up to 295’s without the need for spacers as long as the spring stack height is appropriate (shorter 5” main springs). This wheel fitment will require negative camber up front, but these are track/race cars so that is par for the course. You can also run the 305/645-18’s on these 10.5” wheels with added negative camber, but I think most drivers would prefer running 11” wheels for proper sidewall support, especially since slicks run quite wide.

Option 2: 18x11” ET25 square - Available in EC-7 design only

This setup is typically reserved for hard core race cars and W2W racers planning to run 295, 305 or 315 compounds where maximum sidewall support is desired. Naturally, the fitment requires a little more love in the form of very aggressive camber specifications, rear fender rolling/pulling and possibly some inner clearancing work with the liners, etc. Up front, even the slimmest of suspension designs paired with short 5” springs will need spacers to clear the struts due to the sheer width of the wheel, and the spacer thickness you’ll need will depend on contributing factors like spring stack height and tire size/model (ballpark 10mm - 15mm spacers will be needed).

I hope this was helpful. Please let me know if you have any other questions!

-Tom & the BMW team

Tom
Thanks for the quick and detailed reply, you made a lot of sense, I have 2.25 5" springs on the front, no helper springs right now, but probably need them. I have been running an AIX mustang that uses the 305/680 tires so I was trying to use some of those up but not if it doesn't make sense. I am hoping to eventually run slick tires but may not have that option early in this build, will start out running ST3/E0 NASA classes. I need to digest this a little bit but will be in touch, trying to race in the 6 hour at Utah in AUG but got a lot to do.

Thanks
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      06-29-2020, 12:26 PM   #295
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Quote:
Originally Posted by StripclubDJ View Post
Arc8R brushed silver
18x10 + 25
18mm front spacer
20mm rear ( rolled quarters)
-3.6 front , -2.0 rear
Jrz Motorsport 1132
275/35 nexen sur4g
Was your car previously on Fikse wheels?
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      06-29-2020, 01:11 PM   #296
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Quote:
Originally Posted by RaceBear View Post
Tom
Thanks for the quick and detailed reply, you made a lot of sense, I have 2.25 5" springs on the front, no helper springs right now, but probably need them. I have been running an AIX mustang that uses the 305/680 tires so I was trying to use some of those up but not if it doesn't make sense. I am hoping to eventually run slick tires but may not have that option early in this build, will start out running ST3/E0 NASA classes. I need to digest this a little bit but will be in touch, trying to race in the 6 hour at Utah in AUG but got a lot to do.

Thanks
Sounds good! Let us know if you have any questions in the meantime!

-Tom
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      06-30-2020, 12:10 AM   #297
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Tom
I am thinking of getting the 18X10.5 ET22 in the EC7R, can I get a quote for 6 wheels shipped to 89703 and how long would it take to get them.

Thanks
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      06-30-2020, 01:17 PM   #298
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Quote:
Originally Posted by RaceBear View Post
Tom
I am thinking of getting the 18X10.5 ET22 in the EC7R, can I get a quote for 6 wheels shipped to 89703 and how long would it take to get them.

Thanks
PM Sent!
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      07-16-2020, 05:06 PM   #299
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Joey's BMW E92 M3 on 18" SM-10 Wheels in Race Silver

Big thanks to our customer Joey for sending us these shots of his M3!

APEX wheel specs:
  • 18x10" et25 SM-10 Race Silver on all 4 corners
  • 275/35-18 Michelin PS4S tires







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      07-19-2020, 08:39 PM   #300
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18 x 10.5 ARC8
295/30 Hoosier A7s
12mm spacer front
5mm spacer rear

-3.5 front camber
-2.0 rear camber
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      07-27-2020, 03:26 PM   #301
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Wheels and wheels and wheels

Pictured are 18x10.5 ET22 ARC8-R & FL-5 (295/30/18 Nankang AR-1) and 18x9.5 18x10.5 ET22 SM-10 (265/35/18 285/35/18 PSS) street wheels. The 295 square track wheels need the right suspension setup to fit.

My car in white is running a 380mm 6-piston Rotora BBK up front, blue car is running a 380mm 6-piston Stoptech Trophy BBK up front.
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Last edited by kyippee; 07-27-2020 at 03:34 PM..
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      07-31-2020, 08:47 AM   #302
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FL-5 18x10
5mm front
12mm rear

Think I'm gonna switch to 15 or 18mm rear
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      08-04-2020, 05:37 PM   #303
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Quote:
Originally Posted by Organizedkoz View Post
FL-5 18x10
5mm front
12mm rear

Think I'm gonna switch to 15 or 18mm rear
Loving the FL-5s! Do you have specs on your suspension and alignment?

-Tom
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      08-27-2020, 06:18 PM   #304
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ARC-8R
18x10.5 ET22
295/30/18 Nankang AR-1
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      08-30-2020, 01:38 PM   #305
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Quote:
Originally Posted by kyippee View Post
ARC-8R
18x10.5 ET22
295/30/18 Nankang AR-1
After a cool down lap what pressures are you running? I'm around 35psi and next day cold are 25psi.
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      08-30-2020, 01:40 PM   #306
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Quote:
Originally Posted by Dreamer99 View Post
After a cool down lap what pressures are you running? I'm around 35psi and next day cold are 25psi.
Around the same. Been starting cold 25 psi, after coming in with a good cool down in measuring 32-34
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      09-10-2020, 07:06 PM   #307
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Junior's M3 is incredibly clean with near-flawless paint and a set of polished EC-7Rs to take the shine to the next level.

APEX Wheels:
  • Square Forged 18x10.5" ET22 EC-7R in Polished.
  • 275/35-18 Federal 595 RSR tires all the way around.











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      09-24-2020, 02:10 AM   #308
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Can someone post additional pics of 10 inch wheel upfront with ET15 offset? So basically ET25 with 10mm spacer. Ideally with 275 tire. Thanks.
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