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      01-02-2017, 11:55 AM   #23
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Quote:
Originally Posted by dmk08 View Post
So if I wanted to go 19/20 I could do a full RE71 tire setup. My question is why not go the more standard offset like 9.5 et 20 and 11 et40? Just trying for a super aggressive look? Why 10.5s?

I have to say I think the 19/20 setup looks much better on an M4 vs an M3. It gives the M3 some serious rake.
Yup, RE71R has some good options for a 19/20 set up. PSS and Sport Cup 2 also has good options.

9.5 et20 and 11 et40 is a great/safe set up; it's the set up I ran for the past year. I went with 10 and 11 this time because I wanted to keep the width gap to 1 inch.
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      01-02-2017, 09:53 PM   #24
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Quote:
Originally Posted by CanAutM3 View Post
That's a street setup I am considering for my next M4. BBS FI-R 19x9.5 front with 20x10.5 rears shod with 265/35R19 (TPC) CTS-V spec and 295/30R20 (*) M6 spec PSS.

The PSS mentioned are specifically designed for a front fitmemt on a 9.5" wide wheel and rear fitment on a 10.5" wide wheel. The M6 rear has a meaty 11.6" wide tread.
Why not run a 275/35/19 up front for a closer overall diameter to the rear? Not only would it reduce the rake, but also increase the tire width 20mm front and rear evenly from stock.
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Last edited by DiscoWagon; 01-02-2017 at 10:30 PM.. Reason: Typo on tire size.
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      01-02-2017, 10:17 PM   #25
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Quote:
Originally Posted by DiscoWagon View Post
Why not run a 275/30/19 up front for a closer overall diameter to the rear? Not only would it reduce the rake, but also increase the tire width 20mm front and rear evenly from stock.
Are you sure ? A 275/30R19 has a smaller diameter than a 265/35R19, so it would increase the stagger difference and increase rake...
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      01-02-2017, 10:30 PM   #26
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Quote:
Originally Posted by CanAutM3 View Post
Are you sure ? A 275/30R19 has a smaller diameter than a 265/35R19, so it would increase the stagger difference and increase rake...
Whoops! Typo, I meant 275/35/19.
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      01-02-2017, 10:45 PM   #27
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Quote:
Originally Posted by DiscoWagon View Post
Whoops! Typo, I meant 275/35/19.
Thing is, there are not that many "ideal" PSS fits in that size. I did a fair bit of research, and I find the 265 to be a better fit when paired with a rear 295 (/35R19 or /30R20): the (M0) spec for a 9" wide wheel and either the (N0) or (TPC) specs for a 9.5" wide wheel.
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      01-03-2017, 09:57 AM   #28
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Quote:
Originally Posted by exo-shell View Post
Yup, RE71R has some good options for a 19/20 set up. PSS and Sport Cup 2 also has good options.

9.5 et20 and 11 et40 is a great/safe set up; it's the set up I ran for the past year. I went with 10 and 11 this time because I wanted to keep the width gap to 1 inch.
I gotcha. I have no qualms about going 10s up front just trying to figure out the best setup. What do you think about 19x10 ET24/25 to replace the 19x9.5 ET20?

I think Im going to go 11 ET38 in the rear I didnt realize with signature you can go any offset not just powers of 5 like BC. I think on the M4 I should be fine with that and 295 RE71.
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      01-03-2017, 10:26 AM   #29
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Quote:
Originally Posted by dmk08 View Post
I gotcha. I have no qualms about going 10s up front just trying to figure out the best setup. What do you think about 19x10 ET24/25 to replace the 19x9.5 ET20?

I think Im going to go 11 ET38 in the rear I didnt realize with signature you can go any offset not just powers of 5 like BC. I think on the M4 I should be fine with that and 295 RE71.
If you want to go as aggressive as 10" et24/25 front, it's really going to depend on what suspension you have and what tires you get. What suspension/tires do you plan on running? Camber plates yes or no?
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      01-03-2017, 10:33 AM   #30
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Quote:
Originally Posted by exo-shell View Post
If you want to go as aggressive as 10" et24/25 front, it's really going to depend on what suspension you have and what tires you get. What suspension/tires do you plan on running? Camber plates yes or no?
I can tell you this. I dont want to rub period. So I dont want to go that aggressive lol.

My car only has swift springs as far as suspension and I do not plan on changing that. My camber is about -1.7 up front if I recall. That may be the rear. Ill have to look.

If I go a 19/20 stagger Ill want to run 265/35/19 and 295/30/20 Bridgestone RE-71R.

I love the looks of all 20s too but my car is pretty useless on MPSS rubber with my power setup. I had 19 R101s on my 15 so going 19s in this wheel may just end up feeling like a cheaper version of those...
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      01-03-2017, 11:45 AM   #31
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Quote:
Originally Posted by dmk08 View Post
I can tell you this. I dont want to rub period. So I dont want to go that aggressive lol.

My car only has swift springs as far as suspension and I do not plan on changing that. My camber is about -1.7 up front if I recall. That may be the rear. Ill have to look.

If I go a 19/20 stagger Ill want to run 265/35/19 and 295/30/20 Bridgestone RE-71R.

I love the looks of all 20s too but my car is pretty useless on MPSS rubber with my power setup. I had 19 R101s on my 15 so going 19s in this wheel may just end up feeling like a cheaper version of those...
Just replied to your PM. With Swift springs, you should be fine with 9.5" or 10". However, 9.5" is safer if you plan on selling it later or swapping suspensions to something different; especially KW.
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      01-06-2017, 01:39 PM   #32
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So since I started this thread I should probably update with my 19/20 set up.

SPECS
F: 19x10 ET23 - 265/35/19 RE-11
R: 20x11 ET36 - 295/30/20 RE-71R

JRZ RS2 Sport with -2.2 degrees of camber all around.



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      01-06-2017, 02:07 PM   #33
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Quote:
Originally Posted by exo-shell View Post
So since I started this thread I should probably update with my 19/20 set up.

SPECS
F: 19x10 ET23 - 265/35/19 RE-11
R: 20x11 ET36 - 295/30/20 RE-71R

JRZ RS2 Sport with -2.2 degrees of camber all around.



Perfect! Love it
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      01-06-2017, 02:27 PM   #34
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Dude they look awesome! What finish?
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      01-06-2017, 02:30 PM   #35
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Quote:
Originally Posted by JamesGames View Post
Perfect! Love it
Quote:
Originally Posted by Acree View Post
Dude they look awesome! What finish?
Thanks guys. It came out better than I thought. The wheels are Signature SV104 in "Brushed Black Tinted" finish.

Here's how they look from the butt side.

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      01-06-2017, 03:37 PM   #36
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Quote:
Originally Posted by exo-shell View Post
Thanks guys. It came out better than I thought. The wheels are Signature SV104 in "Brushed Black Tinted" finish.

Here's how they look from the butt side.

Looks fantastic

Please share driving impressions (performance) impressions after you've run the setup a little
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      01-09-2017, 01:22 PM   #37
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Quote:
Originally Posted by exo-shell View Post
The wheels are Signature SV104 in "Brushed Black Tinted" finish.
New wheels look great!
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      01-09-2017, 01:53 PM   #38
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Quote:
Originally Posted by CanAutM3 View Post
Looks fantastic

Please share driving impressions (performance) impressions after you've run the setup a little
Will do my best. Although I can tell you right off the bat, that the new 19/20" set up had very little effect when comparing to my previous set up. BUT, the rear RE71R's are way stickier.

I must mention that a week before I installed the new wheels, I swapped my front main springs from Eibach ERS 500lb to 350lb with the tender spring remaining 150lb (this suspension change had more to do with daily driving than performance). This had a significantly larger effect on feel/performance compared to the wheel/tire swap. When I did eventually swap out the wheels/tires, I did feel an initial difference, but I think it had more to do with the new rear tires (especially since the overall diameter and contact patch changed); as opposed to the wheels. In fact, the new 19/20" set up (although wider in the front and taller in the rear) is lighter than my previous all 19" set up.

Another thing to note is that I have not tracked this car, nor will I with this new set up. So getting a wide range of performance metrics will not be completely accurate from my POV. The best you'll get is daily driving as a family car to aggressive canyon driving. Also to note, we've had record amounts of rain this past month, so any kind of hooning was a no go so far. I will keep you updated, but from the looks of it, I doubt the wheel size difference has any measurable difference unless you take it to 10.

Quote:
Originally Posted by CreoUCLA View Post
New wheels look great!
Thanks! When are you gonna get your new set up?

Here's another pic of the wheel's concavity and finish in the shade.

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      01-09-2017, 02:14 PM   #39
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Quote:
Originally Posted by exo-shell View Post
Will do my best. Although I can tell you right off the bat, that the new 19/20" set up had very little effect when comparing to my previous set up. BUT, the rear RE71R's are way stickier.

I must mention that a week before I installed the new wheels, I swapped my front main springs from Eibach ERS 500lb to 350lb with the tender spring remaining 150lb (this suspension change had more to do with daily driving than performance). This had a significantly larger effect on feel/performance compared to the wheel/tire swap. When I did eventually swap out the wheels/tires, I did feel an initial difference, but I think it had more to do with the new rear tires (especially since the overall diameter and contact patch changed); as opposed to the wheels. In fact, the new 19/20" set up (although wider in the front and taller in the rear) is lighter than my previous all 19" set up.

Another thing to note is that I have not tracked this car, nor will I with this new set up. So getting a wide range of performance metrics will not be completely accurate from my POV. The best you'll get is daily driving as a family car to aggressive canyon driving. Also to note, we've had record amounts of rain this past month, so any kind of hooning was a no go so far. I will keep you updated, but from the looks of it, I doubt the wheel size difference has any measurable difference unless you take it to 10.


Thanks! When are you gonna get your new set up?

Here's another pic of the wheel's concavity and finish in the shade.

Any feedback is appreciated, so keep it coming
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Last edited by CanAutM3; 01-09-2017 at 04:45 PM..
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      01-09-2017, 04:01 PM   #40
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Quote:
Originally Posted by exo-shell View Post
Thanks! When are you gonna get your new set up?
Not sure yet. Maybe summer? The wife is in the midst of renovating the house right now, so it depends how long that takes...
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      01-11-2017, 04:10 PM   #41
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Quote:
Originally Posted by exo-shell View Post
Thanks guys. It came out better than I thought. The wheels are Signature SV104 in "Brushed Black Tinted" finish.

Here's how they look from the butt side.

https://c6.staticflickr.com/1/398/32145048685_6e5d2cd46e_b.jpg

Man your setup looks good! Will there be no issues running different tyres in the front/rear? I've always read that it's not recommended to run different tyres.. never understood why but care to weigh in? I avoided 20's and am receiving a set of Vorsteiners in 19's because the tyre options are limited for 20's and they don't make RE71R in a 265 or 275 in 20's. Signature wheels look extremely good and are well priced! I'm receiving my Vorsteiners tomorrow but it's safe to say that if I change wheels, I'll go for Signature wheels next

Again, amazing looking car!
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      01-11-2017, 06:03 PM   #42
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Quote:
Originally Posted by AhsanU View Post
Man your setup looks good! Will there be no issues running different tyres in the front/rear? I've always read that it's not recommended to run different tyres.. never understood why but care to weigh in? I avoided 20's and am receiving a set of Vorsteiners in 19's because the tyre options are limited for 20's and they don't make RE71R in a 265 or 275 in 20's. Signature wheels look extremely good and are well priced! I'm receiving my Vorsteiners tomorrow but it's safe to say that if I change wheels, I'll go for Signature wheels next

Again, amazing looking car!
Thanks for the compliments.

As far as the mismatched tires go... the answer is, technically yes. If the peak performance temperatures are off front to back, I can experience major handling issues. However, both are Extreme Summer Performance tires and I don't imagine coming even close to the grip limit while daily driving.

I reused my front RE11 for several reasons.

First, I wanted to make sure the noise level of the RE71R wasn't ridiculously louder than the RE11 before committing to buying a set of 4. It's a new tire, so not too many reviews are out yet.

Second, there was still a bit of life left in the RE11s and they fit on the new wheel. Being winter, I figured I could use them until summer at which point I could order the matching RE71R if reason number 1 was acceptable.

Third, cost. Just to save a little money up front.

Fourth, I was actually hoping to get into a set of R888Rs, but they have very limited sizing at the moment. If they introduce the right sizes this year, I may wait for a set of those instead. But so far, I'm liking the RE71Rs.
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      01-20-2019, 05:02 PM   #43
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Quote:
Originally Posted by x.shell View Post
Another thing to note is that I have not tracked this car, nor will I with this new set up. So getting a wide range of performance metrics will not be completely accurate from my POV. The best you'll get is daily driving as a family car to aggressive canyon driving. Also to note, we've had record amounts of rain this past month, so any kind of hooning was a no go so far. I will keep you updated, but from the looks of it, I doubt the wheel size difference has any measurable difference unless you take it to 10.
Aww man, am I glad I found this 2-year-old thread!! I just created (this morning) a new thread to try to find out about the feasibility of running an aggressive staggered 19" / 20" setup on an F33:
https://f30.bimmerpost.com/forums/sh...2#post24266582

So far, I've gotten one reply -- in which the poster suggested that the 2.6% disparity in tire diameter front-to-rear might wreak havoc with my ABS and traction control systems. Now I see that your gorgeous setup has (or had -- perhaps you run a different setup or different vehicle now) a 2.7% diameter disparity between the fronts and the rears! Pray tell; did you experience any such issues???

Thanks in advance, x.shell
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      01-20-2019, 08:25 PM   #44
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Quote:
Originally Posted by Elliot View Post
Quote:
Originally Posted by x.shell View Post
Another thing to note is that I have not tracked this car, nor will I with this new set up. So getting a wide range of performance metrics will not be completely accurate from my POV. The best you'll get is daily driving as a family car to aggressive canyon driving. Also to note, we've had record amounts of rain this past month, so any kind of hooning was a no go so far. I will keep you updated, but from the looks of it, I doubt the wheel size difference has any measurable difference unless you take it to 10.
Aww man, am I glad I found this 2-year-old thread!! I just created (this morning) a new thread to try to find out about the feasibility of running an aggressive staggered 19" / 20" setup on an F33:
https://f30.bimmerpost.com/forums/sh...2#post24266582

So far, I've gotten one reply -- in which the poster suggested that the 2.6% disparity in tire diameter front-to-rear might wreak havoc with my ABS and traction control systems. Now I see that your gorgeous setup has (or had -- perhaps you run a different setup or different vehicle now) a 2.7% diameter disparity between the fronts and the rears! Pray tell; did you experience any such issues???

Thanks in advance, x.shell
Actually, since this thread began, I have taken the car to a bunch of auto cross events. I usually run the 19" Advan GT, but at one event I used the 19/20" set up with the RE71Rs. I had no issues with traction control doing laps with MDM mode or Traction Control OFF. I'm also tuned with Bootmod3 Stage 1.

I think if you're gonna run the car on track, you should learn to go with Traction Control OFF; you won't run into any ratio issues.
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