[335i-SG]

I want to add spaces to the rear wheels and lower with springs.

How thick of a spacer to make the rim almost flush with rear fender. I have the M sport package 19's.

Which size would you recommend 5mm, 10mm, 13mm, 15mm,etc...?

Who do recommend that makes the spacers for the F30? RE, H&R?

Thanks for the help!

[Number]

Sadly, a 10mm spacer will not work on the F30 rear. The new hub lip prevents this. A 5mm spacer will work, but is simply not agressive enough to flush the wheel. A 15mm will work as well, but it "might" be too agressive.

I also have OEM 19" wheels (401 style). I actually tried a 10mm "tester" spacer (not hub-centric) for the rear and it looked perfect. I should've have taken a photo. It doesn't matter anyways because no one makes a 10mm that fits an F30 rear hub. The front will take any size just fine.

H&R does make a 13mm for the F30. I'm 95% sure that it will fit on the rear and still clear with no rubbing. But I don't want to be the first one to try it. If you decide to do it, PLEASE post up the result here.

[335i-SG]

Thank you for the response!

Number, are you saying they wont work or they just don't make 10mm spacer that fit the F30 yet?

I'm going to call Rogue Engineering next week to see if they are working on something. I had their spacers in my 2007 335i and were a quality product.

[Number]

Originally Posted by 335i-SG

Thank you for the response!

Number, are you saying they wont work or they just don't make 10mm spacer that fit the F30 yet?

I'm going to call Rogue Engineering next week to see if they are working on something. I had their spacers in my 2007 335i and were a quality product.

They won't work. I don't know if anyone can design a 10mm hub-centric spacer for the rear that'll work out of the box. I believe it's because the hub lip protrudes just enough that a 10mm spacer doesn't have enough girth to have a lip of it's own. But since the lip on the spacer is necessary for hub-centric spacers, the 10mm spacer won't actually sit flush to the hub. There will be a 1mm gap or so. Sorry if that doesn't make sense. It's a bit hard to explain.

HOWEVER, there is a work around if you must go with the 10mm though. You can shave down the hub lip with a grinding tool. Just a mm or so will do. Then the existing 10mm spacers will fit fine (or so I've been told).

Let us know what Rogue says. I'm interested in the H&R 13mm, but it's damn expensive for spacers with no bolts included.

[335i-SG]

Ill call Rogue and see if they have something in development. If not I might go for the 13mm H&R. I'll keep you guys posted.

I'm also thinking about H&R sport springs. Super sport looks a bit to low.

How much lower will the sport springs be over my M sport springs?

Thanks

[ECSTuning]

Your best bet is always to measure properly for spacers. Everyone car is a little different, and everyone s idea of what's "right" or "fits" can be different. We put together a video explaining how to measure for spacers, I've embedded it below for you to view.

[Number]

Originally Posted by 335i-SG

Ill call Rogue and see if they have something in development. If not I might go for the 13mm H&R. I'll keep you guys posted.

I'm also thinking about H&R sport springs. Super sport looks a bit to low.

How much lower will the sport springs be over my M sport springs?

Thanks

On the M-Sport USA Spec, it comes with OEM springs that are 10mm lower. The H&R Sport Springs will be almost exactly 1 inch lower than that all the way around. This is for the 335i only. 328s won't go as low in the front.

Here's my car with H&R Sport Springs.
http://www.f30post.com/forums/showpo...7&postcount=54

[fastduo]

Interested in this myself. Please update. Thank you. How much will the Sports lower w/o the M pkg? I have a sport line.

[fotios335i]

I have BMS 15 mm on the rear and turner motorsport 10mm on the fronts. I have the oem 19" 401's. When I first dropped the car they stuck out a bit too much but after driving for a few miles and it settled it was actually perfectly flush. I highly recommend it. I am on a sportline with Madaptive suspension. never comes close to rubbing.

[Number]

Originally Posted by fastduo

Interested in this myself. Please update. Thank you. How much will the Sports lower w/o the M pkg? I have a sport line.

From what I understand, the Sport Line and M-Sport suspension (USA SPEC) has the same 10mm drop. The M-Performance springs should have 10mm more. So 20mm more than Luxury Line. Please correct me if I'm wrong.

Originally Posted by fotios335i

I have BMS 15 mm on the rear and turner motorsport 10mm on the fronts. I have the oem 19" 401's. When I first dropped the car they stuck out a bit too much but after driving for a few miles and it settled it was actually perfectly flush. I highly recommend it. I am on a sportline with Madaptive suspension. never comes close to rubbing.

Hey fotios, I didn't know you dropped it. Can you post pics of the 15mm spacers on 401s with the drop? I only have the pics when it was still stock high.

[fotios335i]

Originally Posted by Number

From what I understand, the Sport Line and M-Sport suspension (USA SPEC) has the same 10mm drop. The M-Performance springs should have 10mm more. So 20mm more than Luxury Line. Please correct me if I'm wrong.

I think thats correct.

Hey fotios, I didn't know you dropped it. Can you post pics of the 15mm spacers on 401s with the drop? I only have the pics when it was still stock high.

No, lol, i meant when I dropped it down from the jack. I am getting the Mperformance springs though so it will be lowered. I have a full msport body kit being freighted now via ups. Im so glad I bought it. Msport with fogs, just what I wanted.

[dboucher30]

Originally Posted by fotios335i

I have BMS 15 mm on the rear and turner motorsport 10mm on the fronts. I have the oem 19" 401's. When I first dropped the car they stuck out a bit too much but after driving for a few miles and it settled it was actually perfectly flush. I highly recommend it. I am on a sportline with Madaptive suspension. never comes close to rubbing.

Nice, I have the same config. 19" 401 style with m adaptive suspension. I'm gonna give it a try. Thanks

[335i-SG]

Tomorrow i'm ordering H&R 10mm front & 15mm rear spacers for my M-Sport 335i with 401's. I originally wanted 10mm rear or 13mm but they only fit the front.

My concern is the factory summer tires stick out a lot past the rim. Do you think 10mm front/ 15mm rear will rub?

I also plan to order H&R Sport springs which I believe drops the car .80 more than my m-sport springs.

Any thoughts regarding the spacers? Will they rub when lowered?

Thanks.

[shivaswrath]

I have 18's with a 20mm drop (M Perf Suspension).
I'm at the burgermotorsport page and they recommend:
12mm up front
15mm out rear.

Has anyone tried this, seems pretty aggressive...will be running these with 18" 400's.

[Number]

Originally Posted by shivaswrath

I have 18's with a 20mm drop (M Perf Suspension).
I'm at the burgermotorsport page and they recommend:
12mm up front
15mm out rear.

Has anyone tried this, seems pretty aggressive...will be running these with 18" 400's.

From what I know, nobody's tried it yet. There are some folks with 15mm spacers in the rear, but their cars aren't lowered. I contacted Burger a while back about the 15mm for the 401s in the rear; they said it would rub if you lowered it. The tires do stick out way past the rim.

[dcg71]

I've done 15mm spacers on the rear with H&R sport springs. This is on sport line style 397 wheels - 8" ET34 with a 225 tire. Its pretty flush, rears rub when you corner aggressively.

The 400s obviously are 1/2" wider with 255s, but you have more offset to play with - ET47.

[shivaswrath]

Originally Posted by Number

From what I know, nobody's tried it yet. There are some folks with 15mm spacers in the rear, but their cars aren't lowered. I contacted Burger a while back about the 15mm for the 401s in the rear; they said it would rub if you lowered it. The tires do stick out way past the rim.

the 401s are 19's right? They do seem to stick out a bit...in the rear especially, the 255's are nice and chunky.

Originally Posted by dcg71

I've done 15mm spacers on the rear with H&R sport springs. This is on sport line style 397 wheels - 8" ET34 with a 225 tire. Its pretty flush, rears rub when you corner aggressively.

The 400s obviously are 1/2" wider with 255s, but you have more offset to play with - ET47.

Yeah, I have the 397's on right now with snow tires, and those tires are tall, it seemed like they'd rub a little...

You mention the ET47 on the 400's helping, does it bring the rim closer to the hub?

I'm not sure I want to spend $200 experimenting..ironically, my concern was actually with the 12mm's up front. Any thoughts on that?

[Number]

Originally Posted by shivaswrath

the 401s are 19's right? They do seem to stick out a bit...in the rear especially, the 255's are nice and chunky.



Yeah, I have the 397's on right now with snow tires, and those tires are tall, it seemed like they'd rub a little...

You mention the ET47 on the 400's helping, does it bring the rim closer to the hub?

I'm not sure I want to spend $200 experimenting..ironically, my concern was actually with the 12mm's up front. Any thoughts on that?

12mm up front should be fine. As a matter of fact, you probably have more room to play with on the front than the rear.

[dcg71]

Originally Posted by shivaswrath

You mention the ET47 on the 400's helping, does it bring the rim closer to the hub?

I'm not sure I want to spend $200 experimenting..ironically, my concern was actually with the 12mm's up front. Any thoughts on that?

Yeah, they will be closer to the hub, 13mm closer compared to the 397, but the rear wheel will be 12mm wider. The numbers cancel each other out so an 8.5" wheel at ET47 will sit out exactly the same as an 8" wheel at ET34. On M perf suspension you will be 1/2" higher compared to H&R sport, plus you should have less body roll, so I can't see that rubbing.

I've not used spacers on the front, but would be reasonably confident 12mm will work.

Of course we're talking mm's here, so obviously the tire and its sidewall play a big role.

[shivaswrath]

Originally Posted by dcg71

Yeah, they will be closer to the hub, 13mm closer compared to the 397, but the rear wheel will be 12mm wider. The numbers cancel each other out so an 8.5" wheel at ET47 will sit out exactly the same as an 8" wheel at ET34. On M perf suspension you will be 1/2" higher compared to H&R sport, plus you should have less body roll, so I can't see that rubbing.

I've not used spacers on the front, but would be reasonably confident 12mm will work.

Of course we're talking mm's here, so obviously the tire and its sidewall play a big role.

Done, you've made a good argument, I'll order tonight...

[Number]

Originally Posted by dcg71

Yeah, they will be closer to the hub, 13mm closer compared to the 397, but the rear wheel will be 12mm wider. The numbers cancel each other out so an 8.5" wheel at ET47 will sit out exactly the same as an 8" wheel at ET34. On M perf suspension you will be 1/2" higher compared to H&R sport, plus you should have less body roll, so I can't see that rubbing.

I've not used spacers on the front, but would be reasonably confident 12mm will work.

Of course we're talking mm's here, so obviously the tire and its sidewall play a big role.

Awesome. Thank you for taking the time to do the math.

Originally Posted by shivaswrath

Done, you've made a good argument, I'll order tonight...

Be sure to post when you get them!

[dcg71]

Originally Posted by shivaswrath

Done, you've made a good argument, I'll order tonight...

No worries, you made a good argument for getting the M perf suspension. My kit is on the way.